{"id":346,"date":"2022-07-14T12:28:26","date_gmt":"2022-07-14T04:28:26","guid":{"rendered":"https:\/\/www.lazybirds.top\/?p=346"},"modified":"2022-07-14T12:28:26","modified_gmt":"2022-07-14T04:28:26","slug":"d2l%e8%87%aa%e5%ad%a6%e7%ac%94%e8%ae%b0-7-%e7%8e%b0%e4%bb%a3%e5%8d%b7%e7%a7%af%e7%a5%9e%e7%bb%8f%e7%bd%91%e7%bb%9c","status":"publish","type":"post","link":"https:\/\/www.lazybirds.top\/?p=346","title":{"rendered":"d2l\u81ea\u5b66\u7b14\u8bb0 &#8211; 7.\u73b0\u4ee3\u5377\u79ef\u795e\u7ecf\u7f51\u7edc"},"content":{"rendered":"\n<p><a href=\"https:\/\/zh.d2l.ai\/\">\u300a\u52a8\u624b\u5b66\u6df1\u5ea6\u5b66\u4e60\u300b \u2014 \u52a8\u624b\u5b66\u6df1\u5ea6\u5b66\u4e60 2.0.0-beta0 documentation (d2l.ai)<\/a><\/p>\n\n\n\n<!--more-->\n\n\n\n      <meta charset=\"utf-8\">\n      <meta name=\"viewport\" content=\"width=device-width, initial-scale=1.0\">\n      \n      <link rel=\"stylesheet\" href=\"https:\/\/www.lazybirds.top\/katex\/katex.min.css\">\n      \n      \n      \n      \n      \n      \n      \n      \n      \n      <style>\n      \/**\n * prism.js Github theme based on GitHub's theme.\n * @author Sam Clarke\n *\/\ncode[class*=\"language-\"],\npre[class*=\"language-\"] {\n  color: #333;\n  background: none;\n  font-family: Consolas, \"Liberation Mono\", Menlo, Courier, monospace;\n  text-align: left;\n  white-space: pre;\n  word-spacing: normal;\n  word-break: normal;\n  word-wrap: normal;\n  line-height: 1.4;\n\n  -moz-tab-size: 8;\n  -o-tab-size: 8;\n  tab-size: 8;\n\n  -webkit-hyphens: none;\n  -moz-hyphens: none;\n  -ms-hyphens: none;\n  hyphens: none;\n}\n\n\/* Code blocks *\/\npre[class*=\"language-\"] {\n  padding: .8em;\n  overflow: auto;\n  \/* border: 1px solid #ddd; *\/\n  border-radius: 3px;\n  \/* background: #fff; *\/\n  background: #f5f5f5;\n}\n\n\/* Inline code *\/\n:not(pre) > code[class*=\"language-\"] {\n  padding: .1em;\n  border-radius: .3em;\n  white-space: normal;\n  background: #f5f5f5;\n}\n\n.token.comment,\n.token.blockquote {\n  color: #969896;\n}\n\n.token.cdata {\n  color: #183691;\n}\n\n.token.doctype,\n.token.punctuation,\n.token.variable,\n.token.macro.property {\n  color: #333;\n}\n\n.token.operator,\n.token.important,\n.token.keyword,\n.token.rule,\n.token.builtin {\n  color: #a71d5d;\n}\n\n.token.string,\n.token.url,\n.token.regex,\n.token.attr-value {\n  color: #183691;\n}\n\n.token.property,\n.token.number,\n.token.boolean,\n.token.entity,\n.token.atrule,\n.token.constant,\n.token.symbol,\n.token.command,\n.token.code {\n  color: #0086b3;\n}\n\n.token.tag,\n.token.selector,\n.token.prolog {\n  color: #63a35c;\n}\n\n.token.function,\n.token.namespace,\n.token.pseudo-element,\n.token.class,\n.token.class-name,\n.token.pseudo-class,\n.token.id,\n.token.url-reference .token.variable,\n.token.attr-name {\n  color: #795da3;\n}\n\n.token.entity {\n  cursor: help;\n}\n\n.token.title,\n.token.title .token.punctuation {\n  font-weight: bold;\n  color: #1d3e81;\n}\n\n.token.list {\n  color: #ed6a43;\n}\n\n.token.inserted {\n  background-color: #eaffea;\n  color: #55a532;\n}\n\n.token.deleted {\n  background-color: #ffecec;\n  color: #bd2c00;\n}\n\n.token.bold {\n  font-weight: bold;\n}\n\n.token.italic {\n  font-style: italic;\n}\n\n\n\/* JSON *\/\n.language-json .token.property {\n  color: #183691;\n}\n\n.language-markup .token.tag .token.punctuation {\n  color: #333;\n}\n\n\/* CSS *\/\ncode.language-css,\n.language-css .token.function {\n  color: #0086b3;\n}\n\n\/* YAML *\/\n.language-yaml .token.atrule {\n  color: #63a35c;\n}\n\ncode.language-yaml {\n  color: #183691;\n}\n\n\/* Ruby *\/\n.language-ruby .token.function {\n  color: #333;\n}\n\n\/* Markdown *\/\n.language-markdown .token.url {\n  color: #795da3;\n}\n\n\/* Makefile *\/\n.language-makefile .token.symbol {\n  color: #795da3;\n}\n\n.language-makefile .token.variable {\n  color: #183691;\n}\n\n.language-makefile .token.builtin {\n  color: #0086b3;\n}\n\n\/* Bash *\/\n.language-bash .token.keyword {\n  color: #0086b3;\n}\n\n\/* highlight *\/\npre[data-line] {\n  position: relative;\n  padding: 1em 0 1em 3em;\n}\npre[data-line] .line-highlight-wrapper {\n  position: absolute;\n  top: 0;\n  left: 0;\n  background-color: transparent;\n  display: block;\n  width: 100%;\n}\n\npre[data-line] .line-highlight {\n  position: absolute;\n  left: 0;\n  right: 0;\n  padding: inherit 0;\n  margin-top: 1em;\n  background: hsla(24, 20%, 50%,.08);\n  background: linear-gradient(to right, hsla(24, 20%, 50%,.1) 70%, hsla(24, 20%, 50%,0));\n  pointer-events: none;\n  line-height: inherit;\n  white-space: pre;\n}\n\npre[data-line] .line-highlight:before, \npre[data-line] .line-highlight[data-end]:after {\n  content: attr(data-start);\n  position: absolute;\n  top: .4em;\n  left: .6em;\n  min-width: 1em;\n  padding: 0 .5em;\n  background-color: hsla(24, 20%, 50%,.4);\n  color: hsl(24, 20%, 95%);\n  font: bold 65%\/1.5 sans-serif;\n  text-align: center;\n  vertical-align: .3em;\n  border-radius: 999px;\n  text-shadow: none;\n  box-shadow: 0 1px white;\n}\n\npre[data-line] .line-highlight[data-end]:after {\n  content: attr(data-end);\n  top: auto;\n  bottom: .4em;\n}html body{font-family:\"Helvetica Neue\",Helvetica,\"Segoe UI\",Arial,freesans,sans-serif;font-size:16px;line-height:1.6;color:#333;background-color:#fff;overflow:initial;box-sizing:border-box;word-wrap:break-word}html body>:first-child{margin-top:0}html body h1,html body h2,html body h3,html body h4,html body h5,html body h6{line-height:1.2;margin-top:1em;margin-bottom:16px;color:#000}html body h1{font-size:2.25em;font-weight:300;padding-bottom:.3em}html body h2{font-size:1.75em;font-weight:400;padding-bottom:.3em}html body h3{font-size:1.5em;font-weight:500}html body h4{font-size:1.25em;font-weight:600}html body h5{font-size:1.1em;font-weight:600}html body h6{font-size:1em;font-weight:600}html body h1,html body h2,html body h3,html body h4,html body h5{font-weight:600}html body h5{font-size:1em}html body h6{color:#5c5c5c}html body strong{color:#000}html body del{color:#5c5c5c}html body a:not([href]){color:inherit;text-decoration:none}html body a{color:#08c;text-decoration:none}html body a:hover{color:#00a3f5;text-decoration:none}html body img{max-width:100%}html body>p{margin-top:0;margin-bottom:16px;word-wrap:break-word}html body>ul,html body>ol{margin-bottom:16px}html body ul,html body ol{padding-left:2em}html body ul.no-list,html body ol.no-list{padding:0;list-style-type:none}html body ul ul,html body ul ol,html body ol ol,html body ol ul{margin-top:0;margin-bottom:0}html body li{margin-bottom:0}html body li.task-list-item{list-style:none}html body li>p{margin-top:0;margin-bottom:0}html body .task-list-item-checkbox{margin:0 .2em .25em -1.8em;vertical-align:middle}html body .task-list-item-checkbox:hover{cursor:pointer}html body blockquote{margin:16px 0;font-size:inherit;padding:0 15px;color:#5c5c5c;background-color:#f0f0f0;border-left:4px solid #d6d6d6}html body blockquote>:first-child{margin-top:0}html body blockquote>:last-child{margin-bottom:0}html body hr{height:4px;margin:32px 0;background-color:#d6d6d6;border:0 none}html body table{margin:10px 0 15px 0;border-collapse:collapse;border-spacing:0;display:block;width:100%;overflow:auto;word-break:normal;word-break:keep-all}html body table th{font-weight:bold;color:#000}html body table td,html body table th{border:1px solid #d6d6d6;padding:6px 13px}html body dl{padding:0}html body dl dt{padding:0;margin-top:16px;font-size:1em;font-style:italic;font-weight:bold}html body dl dd{padding:0 16px;margin-bottom:16px}html body code{font-family:Menlo,Monaco,Consolas,'Courier New',monospace;font-size:.85em !important;color:#000;background-color:#f0f0f0;border-radius:3px;padding:.2em 0}html body code::before,html body code::after{letter-spacing:-0.2em;content:\"\\00a0\"}html body pre>code{padding:0;margin:0;font-size:.85em !important;word-break:normal;white-space:pre;background:transparent;border:0}html body .highlight{margin-bottom:16px}html body .highlight pre,html body pre{padding:1em;overflow:auto;font-size:.85em !important;line-height:1.45;border:#d6d6d6;border-radius:3px}html body .highlight pre{margin-bottom:0;word-break:normal}html body pre code,html body pre tt{display:inline;max-width:initial;padding:0;margin:0;overflow:initial;line-height:inherit;word-wrap:normal;background-color:transparent;border:0}html body pre code:before,html body pre tt:before,html body pre code:after,html body pre tt:after{content:normal}html body p,html body blockquote,html body ul,html body ol,html body dl,html body pre{margin-top:0;margin-bottom:16px}html body kbd{color:#000;border:1px solid #d6d6d6;border-bottom:2px solid #c7c7c7;padding:2px 4px;background-color:#f0f0f0;border-radius:3px}@media print{html body{background-color:#fff}html body h1,html body h2,html body h3,html body h4,html body h5,html body h6{color:#000;page-break-after:avoid}html body blockquote{color:#5c5c5c}html body pre{page-break-inside:avoid}html body table{display:table}html body img{display:block;max-width:100%;max-height:100%}html body pre,html body code{word-wrap:break-word;white-space:pre}}.markdown-preview{width:100%;height:100%;box-sizing:border-box}.markdown-preview .pagebreak,.markdown-preview .newpage{page-break-before:always}.markdown-preview pre.line-numbers{position:relative;padding-left:3.8em;counter-reset:linenumber}.markdown-preview pre.line-numbers>code{position:relative}.markdown-preview pre.line-numbers .line-numbers-rows{position:absolute;pointer-events:none;top:1em;font-size:100%;left:0;width:3em;letter-spacing:-1px;border-right:1px solid #999;-webkit-user-select:none;-moz-user-select:none;-ms-user-select:none;user-select:none}.markdown-preview pre.line-numbers .line-numbers-rows>span{pointer-events:none;display:block;counter-increment:linenumber}.markdown-preview pre.line-numbers .line-numbers-rows>span:before{content:counter(linenumber);color:#999;display:block;padding-right:.8em;text-align:right}.markdown-preview .mathjax-exps .MathJax_Display{text-align:center !important}.markdown-preview:not([for=\"preview\"]) .code-chunk .btn-group{display:none}.markdown-preview:not([for=\"preview\"]) .code-chunk .status{display:none}.markdown-preview:not([for=\"preview\"]) .code-chunk .output-div{margin-bottom:16px}.scrollbar-style::-webkit-scrollbar{width:8px}.scrollbar-style::-webkit-scrollbar-track{border-radius:10px;background-color:transparent}.scrollbar-style::-webkit-scrollbar-thumb{border-radius:5px;background-color:rgba(150,150,150,0.66);border:4px solid rgba(150,150,150,0.66);background-clip:content-box}html body[for=\"html-export\"]:not([data-presentation-mode]){position:relative;width:100%;height:100%;top:0;left:0;margin:0;padding:0;overflow:auto}html body[for=\"html-export\"]:not([data-presentation-mode]) .markdown-preview{position:relative;top:0}@media screen and (min-width:914px){html body[for=\"html-export\"]:not([data-presentation-mode]) .markdown-preview{padding:2em calc(50% - 457px + 2em)}}@media screen and (max-width:914px){html body[for=\"html-export\"]:not([data-presentation-mode]) .markdown-preview{padding:2em}}@media screen and (max-width:450px){html body[for=\"html-export\"]:not([data-presentation-mode]) .markdown-preview{font-size:14px !important;padding:1em}}@media print{html body[for=\"html-export\"]:not([data-presentation-mode]) #sidebar-toc-btn{display:none}}html body[for=\"html-export\"]:not([data-presentation-mode]) #sidebar-toc-btn{position:fixed;bottom:8px;left:8px;font-size:28px;cursor:pointer;color:inherit;z-index:99;width:32px;text-align:center;opacity:.4}html body[for=\"html-export\"]:not([data-presentation-mode])[html-show-sidebar-toc] #sidebar-toc-btn{opacity:1}html body[for=\"html-export\"]:not([data-presentation-mode])[html-show-sidebar-toc] .md-sidebar-toc{position:fixed;top:0;left:0;width:300px;height:100%;padding:32px 0 48px 0;font-size:14px;box-shadow:0 0 4px rgba(150,150,150,0.33);box-sizing:border-box;overflow:auto;background-color:inherit}html body[for=\"html-export\"]:not([data-presentation-mode])[html-show-sidebar-toc] .md-sidebar-toc::-webkit-scrollbar{width:8px}html body[for=\"html-export\"]:not([data-presentation-mode])[html-show-sidebar-toc] .md-sidebar-toc::-webkit-scrollbar-track{border-radius:10px;background-color:transparent}html body[for=\"html-export\"]:not([data-presentation-mode])[html-show-sidebar-toc] .md-sidebar-toc::-webkit-scrollbar-thumb{border-radius:5px;background-color:rgba(150,150,150,0.66);border:4px solid rgba(150,150,150,0.66);background-clip:content-box}html body[for=\"html-export\"]:not([data-presentation-mode])[html-show-sidebar-toc] .md-sidebar-toc a{text-decoration:none}html body[for=\"html-export\"]:not([data-presentation-mode])[html-show-sidebar-toc] .md-sidebar-toc ul{padding:0 1.6em;margin-top:.8em}html body[for=\"html-export\"]:not([data-presentation-mode])[html-show-sidebar-toc] .md-sidebar-toc li{margin-bottom:.8em}html body[for=\"html-export\"]:not([data-presentation-mode])[html-show-sidebar-toc] .md-sidebar-toc ul{list-style-type:none}html body[for=\"html-export\"]:not([data-presentation-mode])[html-show-sidebar-toc] .markdown-preview{left:300px;width:calc(100% -  300px);padding:2em calc(50% - 457px -  150px);margin:0;box-sizing:border-box}@media screen and (max-width:1274px){html body[for=\"html-export\"]:not([data-presentation-mode])[html-show-sidebar-toc] .markdown-preview{padding:2em}}@media screen and (max-width:450px){html body[for=\"html-export\"]:not([data-presentation-mode])[html-show-sidebar-toc] .markdown-preview{width:100%}}html body[for=\"html-export\"]:not([data-presentation-mode]):not([html-show-sidebar-toc]) .markdown-preview{left:50%;transform:translateX(-50%)}html body[for=\"html-export\"]:not([data-presentation-mode]):not([html-show-sidebar-toc]) .md-sidebar-toc{display:none}\n\/* Please visit the URL below for more information: *\/\n\/*   https:\/\/shd101wyy.github.io\/markdown-preview-enhanced\/#\/customize-css *\/\n\n      <\/style>\n\n\n      <div class=\"mume markdown-preview  \">\n     \n\n<h1 class=\"mume-header\" id=\"%E6%B7%B1%E5%BA%A6%E5%8D%B7%E7%A7%AF%E7%A5%9E%E7%BB%8F%E7%BD%91%E7%BB%9Calexnet\">&#x6DF1;&#x5EA6;&#x5377;&#x79EF;&#x795E;&#x7ECF;&#x7F51;&#x7EDC;&#xFF08;AlexNet&#xFF09;<\/h1>\n\n<p><img src=\"https:\/\/zh.d2l.ai\/_images\/alexnet.svg\" alt><br>\n&#x76F8;&#x8F83;LeNet<\/p>\n<ul>\n<li>&#x4F7F;&#x7528;ReLU&#x6FC0;&#x6D3B;&#x51FD;&#x6570;&#xFF0C;&#x7F13;&#x89E3;&#x68AF;&#x5EA6;&#x6D88;&#x5931;&#x95EE;&#x9898;<\/li>\n<li>&#x4F7F;&#x7528;&#x6682;&#x9000;&#x6CD5;&#x63A7;&#x5236;&#x5168;&#x8FDE;&#x63A5;&#x5C42;&#x6A21;&#x578B;&#x590D;&#x6742;&#x5EA6;<\/li>\n<li>&#x7528;&#x56FE;&#x50CF;&#x589E;&#x5F3A;&#x6570;&#x636E;&#xFF08;&#x5982;&#x7FFB;&#x8F6C;&#x3001;&#x88C1;&#x5207;&#x3001;&#x53D8;&#x8272;&#xFF09;&#x6269;&#x5145;&#x8BAD;&#x7EC3;&#x6570;&#x636E;&#x96C6;<\/li>\n<li>&#x7F51;&#x7EDC;&#x66F4;&#x6DF1;&#x66F4;&#x5E7F;&#x3001;&#x56FE;&#x50CF;&#x5206;&#x8FA8;&#x7387;&#x66F4;&#x9AD8;<\/li>\n<li>&#x4F7F;&#x7528;&#x66F4;&#x5C0F;&#x7684;&#x5B66;&#x4E60;&#x7387;&#x8BAD;&#x7EC3;<\/li>\n<\/ul>\n<h1 class=\"mume-header\" id=\"%E4%BD%BF%E7%94%A8%E5%9D%97%E7%9A%84%E7%BD%91%E7%BB%9Cvgg\">&#x4F7F;&#x7528;&#x5757;&#x7684;&#x7F51;&#x7EDC;&#xFF08;VGG&#xFF09;<\/h1>\n\n<p><img src=\"https:\/\/zh.d2l.ai\/_images\/vgg.svg\" alt><\/p>\n<h2 class=\"mume-header\" id=\"vgg%E5%9D%97\">VGG&#x5757;<\/h2>\n\n<h3 class=\"mume-header\" id=\"%E6%9C%80%E5%88%9D%E7%9A%84vgg%E5%9D%97\">&#x6700;&#x521D;&#x7684;VGG&#x5757;<\/h3>\n\n<ul>\n<li>&#x5E26;&#x6709;<span class=\"katex\"><span class=\"katex-mathml\"><math xmlns=\"http:\/\/www.w3.org\/1998\/Math\/MathML\"><semantics><mrow><mn>3<\/mn><mo>&#xD7;<\/mo><mn>3<\/mn><\/mrow><annotation encoding=\"application\/x-tex\">3\\times 3<\/annotation><\/semantics><\/math><\/span><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"strut\" style=\"height:0.7278em;vertical-align:-0.0833em;\"><\/span><span class=\"mord\">3<\/span><span class=\"mspace\" style=\"margin-right:0.2222em;\"><\/span><span class=\"mbin\">&#xD7;<\/span><span class=\"mspace\" style=\"margin-right:0.2222em;\"><\/span><\/span><span class=\"base\"><span class=\"strut\" style=\"height:0.6444em;\"><\/span><span class=\"mord\">3<\/span><\/span><\/span><\/span>&#x5377;&#x79EF;&#x6838;&#x3001;&#x586B;&#x5145;&#x4E3A;1&#xFF08;&#x4FDD;&#x6301;&#x9AD8;&#x5EA6;&#x548C;&#x5BBD;&#x5EA6;&#xFF09;&#x7684;&#x5377;&#x79EF;&#x5C42;<\/li>\n<li>&#x975E;&#x7EBF;&#x6027;&#x6FC0;&#x6D3B;&#x51FD;&#x6570;&#xFF08;ReLU&#xFF09;<\/li>\n<li>&#x5E26;&#x6709;<span class=\"katex\"><span class=\"katex-mathml\"><math xmlns=\"http:\/\/www.w3.org\/1998\/Math\/MathML\"><semantics><mrow><mn>2<\/mn><mo>&#xD7;<\/mo><mn>2<\/mn><\/mrow><annotation encoding=\"application\/x-tex\">2\\times 2<\/annotation><\/semantics><\/math><\/span><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"strut\" style=\"height:0.7278em;vertical-align:-0.0833em;\"><\/span><span class=\"mord\">2<\/span><span class=\"mspace\" style=\"margin-right:0.2222em;\"><\/span><span class=\"mbin\">&#xD7;<\/span><span class=\"mspace\" style=\"margin-right:0.2222em;\"><\/span><\/span><span class=\"base\"><span class=\"strut\" style=\"height:0.6444em;\"><\/span><span class=\"mord\">2<\/span><\/span><\/span><\/span>&#x6C47;&#x805A;&#x7A97;&#x53E3;&#x3001;&#x6B65;&#x5E45;&#x4E3A;2&#xFF08;&#x6BCF;&#x4E2A;&#x5757;&#x540E;&#x5206;&#x8FA8;&#x7387;&#x51CF;&#x534A;&#xFF09;&#x7684;&#x6700;&#x5927;&#x6C47;&#x805A;&#x5C42;<\/li>\n<\/ul>\n<h3 class=\"mume-header\" id=\"vgg%E5%9D%97%E7%9A%84%E5%AE%9E%E7%8E%B0\">VGG&#x5757;&#x7684;&#x5B9E;&#x73B0;<\/h3>\n\n<pre data-role=\"codeBlock\" data-info=\"python\" class=\"language-python\"><span class=\"token keyword keyword-def\">def<\/span> <span class=\"token function\">vgg_block<\/span><span class=\"token punctuation\">(<\/span>num_convs<span class=\"token punctuation\">,<\/span> in_channels<span class=\"token punctuation\">,<\/span> out_channels<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">:<\/span>\n    layers <span class=\"token operator\">=<\/span> <span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">]<\/span>\n    <span class=\"token keyword keyword-for\">for<\/span> _ <span class=\"token keyword keyword-in\">in<\/span> <span class=\"token builtin\">range<\/span><span class=\"token punctuation\">(<\/span>num_conv<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">:<\/span>\n        layers<span class=\"token punctuation\">.<\/span>append<span class=\"token punctuation\">(<\/span>nn<span class=\"token punctuation\">.<\/span>Conv2d<span class=\"token punctuation\">(<\/span>in_channels<span class=\"token punctuation\">,<\/span> out_channels<span class=\"token punctuation\">,<\/span> kernel_size<span class=\"token operator\">=<\/span><span class=\"token number\">3<\/span><span class=\"token punctuation\">,<\/span> padding<span class=\"token operator\">=<\/span><span class=\"token number\">1<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span>\n        layers<span class=\"token punctuation\">.<\/span>append<span class=\"token punctuation\">(<\/span>nn<span class=\"token punctuation\">.<\/span>ReLU<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span>\n        in_channels <span class=\"token operator\">=<\/span> out_channels\n    layers<span class=\"token punctuation\">.<\/span>append<span class=\"token punctuation\">(<\/span>nn<span class=\"token punctuation\">.<\/span>MaxPool2d<span class=\"token punctuation\">(<\/span>kernel_size<span class=\"token operator\">=<\/span><span class=\"token number\">2<\/span><span class=\"token punctuation\">,<\/span> stride<span class=\"token operator\">=<\/span><span class=\"token number\">2<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span>\n    <span class=\"token keyword keyword-return\">return<\/span> nn<span class=\"token punctuation\">.<\/span>Sequential<span class=\"token punctuation\">(<\/span><span class=\"token operator\">*<\/span>layers<span class=\"token punctuation\">)<\/span>\n<\/pre><h2 class=\"mume-header\" id=\"vgg-11%E6%A8%A1%E5%9E%8B\">VGG-11&#x6A21;&#x578B;<\/h2>\n\n<ul>\n<li>&#x5305;&#x542B;5&#x4E2A;&#x5377;&#x79EF;&#x5757;<\/li>\n<li>&#x524D;&#x4E24;&#x4E2A;&#x5377;&#x79EF;&#x5757;&#x5404;&#x6709;&#x4E00;&#x4E2A;&#x5377;&#x79EF;&#x5C42;<\/li>\n<li>&#x540E;&#x4E09;&#x4E2A;&#x5377;&#x79EF;&#x5757;&#x5404;&#x6709;&#x4E24;&#x4E2A;&#x5377;&#x79EF;&#x5C42;<\/li>\n<li>&#x5171;8&#x4E2A;&#x5377;&#x79EF;&#x5C42;&#xFF0C;3&#x4E2A;&#x5168;&#x8FDE;&#x63A5;&#x5C42;&#xFF0C;&#x6545;&#x79F0;VGG-11<\/li>\n<\/ul>\n<pre data-role=\"codeBlock\" data-info=\"python\" class=\"language-python\"><span class=\"token comment\"># (num_convs, out_channels)<\/span>\nconv_arch <span class=\"token operator\">=<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">1<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">64<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token number\">1<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">128<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token number\">2<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">256<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token number\">2<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">512<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token number\">2<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">512<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span>\n<\/pre><h1 class=\"mume-header\" id=\"%E7%BD%91%E7%BB%9C%E4%B8%AD%E7%9A%84%E7%BD%91%E7%BB%9Cnin\">&#x7F51;&#x7EDC;&#x4E2D;&#x7684;&#x7F51;&#x7EDC;&#xFF08;NiN&#xFF09;<\/h1>\n\n<p><img src=\"https:\/\/zh.d2l.ai\/_images\/nin.svg\" alt><\/p>\n<h2 class=\"mume-header\" id=\"nin%E5%9D%97\">NiN&#x5757;<\/h2>\n\n<p>&#x666E;&#x901A;&#x5377;&#x79EF;&#x5C42;&#x540E;&#x63A5;&#x4E24;&#x4E2A;<span class=\"katex\"><span class=\"katex-mathml\"><math xmlns=\"http:\/\/www.w3.org\/1998\/Math\/MathML\"><semantics><mrow><mn>1<\/mn><mo>&#xD7;<\/mo><mn>1<\/mn><\/mrow><annotation encoding=\"application\/x-tex\">1\\times 1<\/annotation><\/semantics><\/math><\/span><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"strut\" style=\"height:0.7278em;vertical-align:-0.0833em;\"><\/span><span class=\"mord\">1<\/span><span class=\"mspace\" style=\"margin-right:0.2222em;\"><\/span><span class=\"mbin\">&#xD7;<\/span><span class=\"mspace\" style=\"margin-right:0.2222em;\"><\/span><\/span><span class=\"base\"><span class=\"strut\" style=\"height:0.6444em;\"><\/span><span class=\"mord\">1<\/span><\/span><\/span><\/span>&#x7684;&#x5377;&#x79EF;&#x5C42;&#x3002;<\/p>\n<pre data-role=\"codeBlock\" data-info=\"python\" class=\"language-python\"><span class=\"token keyword keyword-def\">def<\/span> <span class=\"token function\">nin_block<\/span><span class=\"token punctuation\">(<\/span>in_channels<span class=\"token punctuation\">,<\/span> out_channels<span class=\"token punctuation\">,<\/span> kernel_size<span class=\"token punctuation\">,<\/span> strides<span class=\"token punctuation\">,<\/span> padding<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">:<\/span>\n    <span class=\"token keyword keyword-return\">return<\/span> nn<span class=\"token punctuation\">.<\/span>Sequential<span class=\"token punctuation\">(<\/span>\n        nn<span class=\"token punctuation\">.<\/span>Conv2d<span class=\"token punctuation\">(<\/span>in_channels<span class=\"token punctuation\">,<\/span> out_channels<span class=\"token punctuation\">,<\/span> kernel_size<span class=\"token punctuation\">,<\/span> strides<span class=\"token punctuation\">,<\/span> padding<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span>\n        nn<span class=\"token punctuation\">.<\/span>ReLU<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span>\n        nn<span class=\"token punctuation\">.<\/span>Conv2d<span class=\"token punctuation\">(<\/span>out_channels<span class=\"token punctuation\">,<\/span> out_channels<span class=\"token punctuation\">,<\/span> kernel_size<span class=\"token operator\">=<\/span><span class=\"token number\">1<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span>\n        nn<span class=\"token punctuation\">.<\/span>ReLU<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span>\n        nn<span class=\"token punctuation\">.<\/span>Conv2d<span class=\"token punctuation\">(<\/span>out_channels<span class=\"token punctuation\">,<\/span> out_channels<span class=\"token punctuation\">,<\/span> kernel_size<span class=\"token operator\">=<\/span><span class=\"token number\">1<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span>\n        nn<span class=\"token punctuation\">.<\/span>ReLU<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span>\n    <span class=\"token punctuation\">)<\/span>\n<\/pre><h2 class=\"mume-header\" id=\"nin%E6%A8%A1%E5%9E%8B\">NiN&#x6A21;&#x578B;<\/h2>\n\n<ul>\n<li>&#x4F7F;&#x7528;&#x7A97;&#x53E3;&#x5F62;&#x72B6;&#x4E3A;<span class=\"katex\"><span class=\"katex-mathml\"><math xmlns=\"http:\/\/www.w3.org\/1998\/Math\/MathML\"><semantics><mrow><mn>11<\/mn><mo>&#xD7;<\/mo><mn>11<\/mn><\/mrow><annotation encoding=\"application\/x-tex\">11\\times 11<\/annotation><\/semantics><\/math><\/span><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"strut\" style=\"height:0.7278em;vertical-align:-0.0833em;\"><\/span><span class=\"mord\">11<\/span><span class=\"mspace\" style=\"margin-right:0.2222em;\"><\/span><span class=\"mbin\">&#xD7;<\/span><span class=\"mspace\" style=\"margin-right:0.2222em;\"><\/span><\/span><span class=\"base\"><span class=\"strut\" style=\"height:0.6444em;\"><\/span><span class=\"mord\">11<\/span><\/span><\/span><\/span>&#xFF0C;<span class=\"katex\"><span class=\"katex-mathml\"><math xmlns=\"http:\/\/www.w3.org\/1998\/Math\/MathML\"><semantics><mrow><mn>5<\/mn><mo>&#xD7;<\/mo><mn>5<\/mn><\/mrow><annotation encoding=\"application\/x-tex\">5\\times 5<\/annotation><\/semantics><\/math><\/span><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"strut\" style=\"height:0.7278em;vertical-align:-0.0833em;\"><\/span><span class=\"mord\">5<\/span><span class=\"mspace\" style=\"margin-right:0.2222em;\"><\/span><span class=\"mbin\">&#xD7;<\/span><span class=\"mspace\" style=\"margin-right:0.2222em;\"><\/span><\/span><span class=\"base\"><span class=\"strut\" style=\"height:0.6444em;\"><\/span><span class=\"mord\">5<\/span><\/span><\/span><\/span>&#xFF0C;<span class=\"katex\"><span class=\"katex-mathml\"><math xmlns=\"http:\/\/www.w3.org\/1998\/Math\/MathML\"><semantics><mrow><mn>3<\/mn><mo>&#xD7;<\/mo><mn>3<\/mn><\/mrow><annotation encoding=\"application\/x-tex\">3\\times 3<\/annotation><\/semantics><\/math><\/span><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"strut\" style=\"height:0.7278em;vertical-align:-0.0833em;\"><\/span><span class=\"mord\">3<\/span><span class=\"mspace\" style=\"margin-right:0.2222em;\"><\/span><span class=\"mbin\">&#xD7;<\/span><span class=\"mspace\" style=\"margin-right:0.2222em;\"><\/span><\/span><span class=\"base\"><span class=\"strut\" style=\"height:0.6444em;\"><\/span><span class=\"mord\">3<\/span><\/span><\/span><\/span>&#x7684;&#x5377;&#x79EF;&#x5C42;<\/li>\n<li>&#x6BCF;&#x4E2A;NiN&#x5757;&#x540E;&#x6709;&#x4E00;&#x4E2A;&#x6700;&#x5927;&#x6C47;&#x805A;&#x5C42;&#xFF0C;&#x6C47;&#x805A;&#x7A97;&#x53E3;&#x5F62;&#x72B6;&#x4E3A;<span class=\"katex\"><span class=\"katex-mathml\"><math xmlns=\"http:\/\/www.w3.org\/1998\/Math\/MathML\"><semantics><mrow><mn>3<\/mn><mo>&#xD7;<\/mo><mn>3<\/mn><\/mrow><annotation encoding=\"application\/x-tex\">3\\times 3<\/annotation><\/semantics><\/math><\/span><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"strut\" style=\"height:0.7278em;vertical-align:-0.0833em;\"><\/span><span class=\"mord\">3<\/span><span class=\"mspace\" style=\"margin-right:0.2222em;\"><\/span><span class=\"mbin\">&#xD7;<\/span><span class=\"mspace\" style=\"margin-right:0.2222em;\"><\/span><\/span><span class=\"base\"><span class=\"strut\" style=\"height:0.6444em;\"><\/span><span class=\"mord\">3<\/span><\/span><\/span><\/span>&#xFF0C;&#x6B65;&#x5E45;&#x4E3A;2<\/li>\n<li>&#x76F8;&#x8F83;AlexNet&#xFF0C;&#x53D6;&#x6D88;&#x4E86;&#x5168;&#x8FDE;&#x63A5;&#x5C42;&#xFF0C;&#x4EE5;<strong>&#x5168;&#x5C40;&#x5E73;&#x5747;&#x6C47;&#x805A;&#x5C42;<\/strong>&#xFF08;global average pooling layer&#xFF09;&#x66FF;&#x4EE3;&#xFF0C;&#x751F;&#x6210;&#x4E00;&#x4E2A;&#x5BF9;&#x6570;&#x51E0;&#x7387;&#xFF08;logits&#xFF09;<br>\n<code>nn.AdaptiveAvgPool2d((1,1)), nn.Flatten()<\/code><\/li>\n<\/ul>\n<p>&#x4F8B;&#x5982;&#x6700;&#x540E;&#x51E0;&#x4E2A;&#x5757;&#x7684;&#x8F93;&#x51FA;&#x5F62;&#x72B6;&#x4E3A;&#xFF1A;<\/p>\n<pre data-role=\"codeBlock\" data-info=\"python\" class=\"language-python\">Sequential output shape<span class=\"token punctuation\">:<\/span>            torch<span class=\"token punctuation\">.<\/span>Size<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">[<\/span><span class=\"token number\">1<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">10<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">5<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">5<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">)<\/span>\nAdaptiveAvgPool2d output shape<span class=\"token punctuation\">:<\/span>     torch<span class=\"token punctuation\">.<\/span>Size<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">[<\/span><span class=\"token number\">1<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">10<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">1<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">1<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">)<\/span>\nFlatten output shape<span class=\"token punctuation\">:<\/span>               torch<span class=\"token punctuation\">.<\/span>Size<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">[<\/span><span class=\"token number\">1<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">10<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">)<\/span>\n<\/pre><p>&#x53D6;&#x6D88;&#x5168;&#x8FDE;&#x63A5;&#x5C42;&#x7684;&#x539F;&#x56E0;&#xFF1A;<\/p>\n<ul>\n<li>&#x5168;&#x8FDE;&#x63A5;&#x5C42;&#x4E22;&#x5F03;&#x4E86;&#x8868;&#x5F81;&#x7684;&#x7A7A;&#x95F4;&#x7ED3;&#x6784;<\/li>\n<li>&#x5168;&#x8FDE;&#x63A5;&#x5C42;&#x6613;&#x9020;&#x6210;&#x8FC7;&#x62DF;&#x5408;<\/li>\n<li>&#x5168;&#x8FDE;&#x63A5;&#x5C42;&#x6A21;&#x578B;&#x6240;&#x9700;&#x53C2;&#x6570;&#x91CF;&#x8F83;&#x5927;<\/li>\n<\/ul>\n<h1 class=\"mume-header\" id=\"%E5%90%AB%E5%B9%B6%E8%A1%8C%E8%BF%9E%E7%BB%93%E7%9A%84%E7%BD%91%E7%BB%9Cgooglenet\">&#x542B;&#x5E76;&#x884C;&#x8FDE;&#x7ED3;&#x7684;&#x7F51;&#x7EDC;&#xFF08;GoogLeNet&#xFF09;<\/h1>\n\n<h2 class=\"mume-header\" id=\"inception%E5%9D%97\">Inception&#x5757;<\/h2>\n\n<p><img src=\"https:\/\/zh.d2l.ai\/_images\/inception.svg\" alt><\/p>\n<ul>\n<li><span class=\"katex\"><span class=\"katex-mathml\"><math xmlns=\"http:\/\/www.w3.org\/1998\/Math\/MathML\"><semantics><mrow><mn>1<\/mn><mo>&#xD7;<\/mo><mn>1<\/mn><\/mrow><annotation encoding=\"application\/x-tex\">1\\times 1<\/annotation><\/semantics><\/math><\/span><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"strut\" style=\"height:0.7278em;vertical-align:-0.0833em;\"><\/span><span class=\"mord\">1<\/span><span class=\"mspace\" style=\"margin-right:0.2222em;\"><\/span><span class=\"mbin\">&#xD7;<\/span><span class=\"mspace\" style=\"margin-right:0.2222em;\"><\/span><\/span><span class=\"base\"><span class=\"strut\" style=\"height:0.6444em;\"><\/span><span class=\"mord\">1<\/span><\/span><\/span><\/span>&#x5377;&#x79EF;&#x5C42;&#x7528;&#x6765;&#x6539;&#x53D8;&#x901A;&#x9053;&#x6570;&#xFF0C;&#x964D;&#x4F4E;&#x6A21;&#x578B;&#x590D;&#x6742;&#x6027;<\/li>\n<li>&#x56DB;&#x6761;&#x8DEF;&#x5F84;&#x5747;&#x4F7F;&#x7528;&#x5408;&#x9002;&#x586B;&#x5145;&#x6765;&#x4F7F;&#x8F93;&#x5165;&#x4E0E;&#x8F93;&#x51FA;&#x7684;&#x9AD8;&#x548C;&#x5BBD;&#x4E00;&#x81F4;<\/li>\n<li><strong>&#x4E0D;&#x540C;&#x5927;&#x5C0F;&#x7684;&#x6EE4;&#x6CE2;&#x5668;&#x53EF;&#x4EE5;&#x6709;&#x6548;&#x8BC6;&#x522B;&#x4E0D;&#x540C;&#x8303;&#x56F4;&#x7684;&#x56FE;&#x50CF;&#x7EC6;&#x8282;<\/strong><\/li>\n<\/ul>\n<h2 class=\"mume-header\" id=\"googlenet%E6%A8%A1%E5%9E%8B\">GoogLeNet&#x6A21;&#x578B;<\/h2>\n\n<p><img src=\"https:\/\/zh.d2l.ai\/_images\/inception-full.svg\" alt><\/p>\n<h1 class=\"mume-header\" id=\"%E6%89%B9%E9%87%8F%E8%A7%84%E8%8C%83%E5%8C%96batch-normalization\">&#x6279;&#x91CF;&#x89C4;&#x8303;&#x5316;&#xFF08;batch normalization&#xFF09;<\/h1>\n\n<p>&#x53EA;&#x6709;&#x4F7F;&#x7528;&#x8DB3;&#x591F;&#x5927;&#x7684;&#x5C0F;&#x6279;&#x91CF;&#xFF0C;&#x6279;&#x91CF;&#x89C4;&#x8303;&#x5316;&#x8FD9;&#x79CD;&#x65B9;&#x6CD5;&#x624D;&#x662F;&#x6709;&#x6548;&#x3001;&#x7A33;&#x5B9A;&#x7684;&#x3002;<br>\n<span class=\"katex-display\"><span class=\"katex\"><span class=\"katex-mathml\"><math xmlns=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" display=\"block\"><semantics><mrow><mrow><mi mathvariant=\"normal\">B<\/mi><mi mathvariant=\"normal\">N<\/mi><\/mrow><mo stretchy=\"false\">(<\/mo><mi mathvariant=\"bold\">x<\/mi><mo stretchy=\"false\">)<\/mo><mo>=<\/mo><mi>&#x3B3;<\/mi><mo>&#x2299;<\/mo><mfrac><mrow><mi mathvariant=\"bold\">x<\/mi><mo>&#x2212;<\/mo><msub><mover accent=\"true\"><mi>&#x3BC;<\/mi><mo>^<\/mo><\/mover><mi>B<\/mi><\/msub><\/mrow><msub><mover accent=\"true\"><mi>&#x3C3;<\/mi><mo>^<\/mo><\/mover><mi>B<\/mi><\/msub><\/mfrac><mo>+<\/mo><mi>&#x3B2;<\/mi><\/mrow><annotation encoding=\"application\/x-tex\">\\mathrm{BN}(\\mathbf{x})=\\gamma \\odot \\frac{\\mathbf{x}-\\hat{\\mu}_{B}}{\\hat{\\sigma}_{B}}+\\beta<\/annotation><\/semantics><\/math><\/span><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"strut\" style=\"height:1em;vertical-align:-0.25em;\"><\/span><span class=\"mord\"><span class=\"mord mathrm\">BN<\/span><\/span><span class=\"mopen\">(<\/span><span class=\"mord mathbf\">x<\/span><span class=\"mclose\">)<\/span><span class=\"mspace\" style=\"margin-right:0.2778em;\"><\/span><span class=\"mrel\">=<\/span><span class=\"mspace\" style=\"margin-right:0.2778em;\"><\/span><\/span><span class=\"base\"><span class=\"strut\" style=\"height:0.7778em;vertical-align:-0.1944em;\"><\/span><span class=\"mord mathnormal\" style=\"margin-right:0.05556em;\">&#x3B3;<\/span><span class=\"mspace\" style=\"margin-right:0.2222em;\"><\/span><span class=\"mbin\">&#x2299;<\/span><span class=\"mspace\" style=\"margin-right:0.2222em;\"><\/span><\/span><span class=\"base\"><span class=\"strut\" style=\"height:2.2074em;vertical-align:-0.836em;\"><\/span><span class=\"mord\"><span class=\"mopen nulldelimiter\"><\/span><span class=\"mfrac\"><span class=\"vlist-t vlist-t2\"><span class=\"vlist-r\"><span class=\"vlist\" style=\"height:1.3714em;\"><span style=\"top:-2.314em;\"><span class=\"pstrut\" style=\"height:3em;\"><\/span><span class=\"mord\"><span class=\"mord\"><span class=\"mord accent\"><span class=\"vlist-t\"><span class=\"vlist-r\"><span class=\"vlist\" style=\"height:0.6944em;\"><span style=\"top:-3em;\"><span class=\"pstrut\" style=\"height:3em;\"><\/span><span class=\"mord mathnormal\" style=\"margin-right:0.03588em;\">&#x3C3;<\/span><\/span><span style=\"top:-3em;\"><span class=\"pstrut\" style=\"height:3em;\"><\/span><span class=\"accent-body\" style=\"left:-0.25em;\"><span class=\"mord\">^<\/span><\/span><\/span><\/span><\/span><\/span><\/span><span class=\"msupsub\"><span class=\"vlist-t vlist-t2\"><span class=\"vlist-r\"><span class=\"vlist\" style=\"height:0.3283em;\"><span style=\"top:-2.55em;margin-left:-0.0359em;margin-right:0.05em;\"><span class=\"pstrut\" style=\"height:2.7em;\"><\/span><span class=\"sizing reset-size6 size3 mtight\"><span class=\"mord mtight\"><span class=\"mord mathnormal mtight\" style=\"margin-right:0.05017em;\">B<\/span><\/span><\/span><\/span><\/span><span class=\"vlist-s\">&#x200B;<\/span><\/span><span class=\"vlist-r\"><span class=\"vlist\" style=\"height:0.15em;\"><span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><span style=\"top:-3.23em;\"><span class=\"pstrut\" style=\"height:3em;\"><\/span><span class=\"frac-line\" style=\"border-bottom-width:0.04em;\"><\/span><\/span><span style=\"top:-3.677em;\"><span class=\"pstrut\" style=\"height:3em;\"><\/span><span class=\"mord\"><span class=\"mord mathbf\">x<\/span><span class=\"mspace\" style=\"margin-right:0.2222em;\"><\/span><span class=\"mbin\">&#x2212;<\/span><span class=\"mspace\" style=\"margin-right:0.2222em;\"><\/span><span class=\"mord\"><span class=\"mord accent\"><span class=\"vlist-t vlist-t2\"><span class=\"vlist-r\"><span class=\"vlist\" style=\"height:0.6944em;\"><span style=\"top:-3em;\"><span class=\"pstrut\" style=\"height:3em;\"><\/span><span class=\"mord mathnormal\">&#x3BC;<\/span><\/span><span style=\"top:-3em;\"><span class=\"pstrut\" style=\"height:3em;\"><\/span><span class=\"accent-body\" style=\"left:-0.2222em;\"><span class=\"mord\">^<\/span><\/span><\/span><\/span><span class=\"vlist-s\">&#x200B;<\/span><\/span><span class=\"vlist-r\"><span class=\"vlist\" style=\"height:0.1944em;\"><span><\/span><\/span><\/span><\/span><\/span><span class=\"msupsub\"><span class=\"vlist-t vlist-t2\"><span class=\"vlist-r\"><span class=\"vlist\" style=\"height:0.3283em;\"><span style=\"top:-2.55em;margin-left:0em;margin-right:0.05em;\"><span class=\"pstrut\" style=\"height:2.7em;\"><\/span><span class=\"sizing reset-size6 size3 mtight\"><span class=\"mord mtight\"><span class=\"mord mathnormal mtight\" style=\"margin-right:0.05017em;\">B<\/span><\/span><\/span><\/span><\/span><span class=\"vlist-s\">&#x200B;<\/span><\/span><span class=\"vlist-r\"><span class=\"vlist\" style=\"height:0.15em;\"><span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><span class=\"vlist-s\">&#x200B;<\/span><\/span><span class=\"vlist-r\"><span class=\"vlist\" style=\"height:0.836em;\"><span><\/span><\/span><\/span><\/span><\/span><span class=\"mclose nulldelimiter\"><\/span><\/span><span class=\"mspace\" style=\"margin-right:0.2222em;\"><\/span><span class=\"mbin\">+<\/span><span class=\"mspace\" style=\"margin-right:0.2222em;\"><\/span><\/span><span class=\"base\"><span class=\"strut\" style=\"height:0.8889em;vertical-align:-0.1944em;\"><\/span><span class=\"mord mathnormal\" style=\"margin-right:0.05278em;\">&#x3B2;<\/span><\/span><\/span><\/span><\/span><\/p>\n<p>&#x5176;&#x4E2D;<span class=\"katex\"><span class=\"katex-mathml\"><math xmlns=\"http:\/\/www.w3.org\/1998\/Math\/MathML\"><semantics><mrow><mi>&#x3B3;<\/mi><\/mrow><annotation encoding=\"application\/x-tex\">\\gamma<\/annotation><\/semantics><\/math><\/span><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"strut\" style=\"height:0.625em;vertical-align:-0.1944em;\"><\/span><span class=\"mord mathnormal\" style=\"margin-right:0.05556em;\">&#x3B3;<\/span><\/span><\/span><\/span>&#x548C;<span class=\"katex\"><span class=\"katex-mathml\"><math xmlns=\"http:\/\/www.w3.org\/1998\/Math\/MathML\"><semantics><mrow><mi>&#x3B2;<\/mi><\/mrow><annotation encoding=\"application\/x-tex\">\\beta<\/annotation><\/semantics><\/math><\/span><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"strut\" style=\"height:0.8889em;vertical-align:-0.1944em;\"><\/span><span class=\"mord mathnormal\" style=\"margin-right:0.05278em;\">&#x3B2;<\/span><\/span><\/span><\/span>&#x4E5F;&#x662F;&#x5F85;&#x5B66;&#x4E60;&#x7684;&#x62C9;&#x4F38;&#xFF08;scale&#xFF09;&#x548C;&#x504F;&#x79FB;&#xFF08;shift&#xFF09;&#x53C2;&#x6570;&#x3002;&#x6BCF;&#x4E2A;&#x901A;&#x9053;&#x90FD;&#x6709;&#x5404;&#x81EA;&#x7684;<span class=\"katex\"><span class=\"katex-mathml\"><math xmlns=\"http:\/\/www.w3.org\/1998\/Math\/MathML\"><semantics><mrow><mi>&#x3B3;<\/mi><\/mrow><annotation encoding=\"application\/x-tex\">\\gamma<\/annotation><\/semantics><\/math><\/span><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"strut\" style=\"height:0.625em;vertical-align:-0.1944em;\"><\/span><span class=\"mord mathnormal\" style=\"margin-right:0.05556em;\">&#x3B3;<\/span><\/span><\/span><\/span>&#x548C;<span class=\"katex\"><span class=\"katex-mathml\"><math xmlns=\"http:\/\/www.w3.org\/1998\/Math\/MathML\"><semantics><mrow><mi>&#x3B2;<\/mi><\/mrow><annotation encoding=\"application\/x-tex\">\\beta<\/annotation><\/semantics><\/math><\/span><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"strut\" style=\"height:0.8889em;vertical-align:-0.1944em;\"><\/span><span class=\"mord mathnormal\" style=\"margin-right:0.05278em;\">&#x3B2;<\/span><\/span><\/span><\/span>&#x3002;<\/p>\n<p><span class=\"katex-display\"><span class=\"katex\"><span class=\"katex-mathml\"><math xmlns=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" display=\"block\"><semantics><mtable rowspacing=\"0.25em\" columnalign=\"right left\" columnspacing=\"0em\"><mtr><mtd><mstyle scriptlevel=\"0\" displaystyle=\"true\"><mrow><\/mrow><\/mstyle><\/mtd><mtd><mstyle scriptlevel=\"0\" displaystyle=\"true\"><mrow><mrow><\/mrow><msub><mover accent=\"true\"><mi>&#x3BC;<\/mi><mo>^<\/mo><\/mover><mi>B<\/mi><\/msub><mo>=<\/mo><mfrac><mn>1<\/mn><mrow><mi mathvariant=\"normal\">&#x2223;<\/mi><mi mathvariant=\"script\">B<\/mi><mi mathvariant=\"normal\">&#x2223;<\/mi><\/mrow><\/mfrac><munder><mo>&#x2211;<\/mo><mrow><mi mathvariant=\"bold\">x<\/mi><mo>&#x2208;<\/mo><mi>B<\/mi><\/mrow><\/munder><mi mathvariant=\"bold\">x<\/mi><\/mrow><\/mstyle><\/mtd><\/mtr><mtr><mtd><mstyle scriptlevel=\"0\" displaystyle=\"true\"><mrow><\/mrow><\/mstyle><\/mtd><mtd><mstyle scriptlevel=\"0\" displaystyle=\"true\"><mrow><mrow><\/mrow><msubsup><mover accent=\"true\"><mi>&#x3C3;<\/mi><mo>^<\/mo><\/mover><mi>E<\/mi><mn>2<\/mn><\/msubsup><mo>=<\/mo><mfrac><mn>1<\/mn><mrow><mi mathvariant=\"normal\">&#x2223;<\/mi><mi mathvariant=\"script\">B<\/mi><mi mathvariant=\"normal\">&#x2223;<\/mi><\/mrow><\/mfrac><munder><mo>&#x2211;<\/mo><mrow><mi mathvariant=\"bold\">x<\/mi><mo>&#x2208;<\/mo><mi>B<\/mi><\/mrow><\/munder><msup><mrow><mo fence=\"true\">(<\/mo><mi mathvariant=\"bold\">x<\/mi><mo>&#x2212;<\/mo><msub><mover accent=\"true\"><mi>&#x3BC;<\/mi><mo>^<\/mo><\/mover><mi>B<\/mi><\/msub><mo fence=\"true\">)<\/mo><\/mrow><mn>2<\/mn><\/msup><mo>+<\/mo><mi>&#x3F5;<\/mi><\/mrow><\/mstyle><\/mtd><\/mtr><\/mtable><annotation encoding=\"application\/x-tex\">\\begin{aligned}\n&amp;\\hat{\\mu}_{B}=\\frac{1}{|\\mathcal{B}|} \\sum_{\\mathbf{x} \\in B} \\mathbf{x} \\\\\n&amp;\\hat{\\sigma}_{E}^{2}=\\frac{1}{|\\mathcal{B}|} \\sum_{\\mathbf{x} \\in B}\\left(\\mathbf{x}-\\hat{\\mu}_{B}\\right)^{2}+\\epsilon\n\\end{aligned}<\/annotation><\/semantics><\/math><\/span><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"strut\" style=\"height:5.8863em;vertical-align:-2.6931em;\"><\/span><span class=\"mord\"><span class=\"mtable\"><span class=\"col-align-r\"><span class=\"vlist-t vlist-t2\"><span class=\"vlist-r\"><span class=\"vlist\" style=\"height:3.1931em;\"><span style=\"top:-5.1931em;\"><span class=\"pstrut\" style=\"height:3.3214em;\"><\/span><span class=\"mord\"><\/span><\/span><span style=\"top:-2.25em;\"><span class=\"pstrut\" style=\"height:3.3214em;\"><\/span><span class=\"mord\"><\/span><\/span><\/span><span class=\"vlist-s\">&#x200B;<\/span><\/span><span class=\"vlist-r\"><span class=\"vlist\" style=\"height:2.6931em;\"><span><\/span><\/span><\/span><\/span><\/span><span class=\"col-align-l\"><span class=\"vlist-t vlist-t2\"><span class=\"vlist-r\"><span class=\"vlist\" style=\"height:3.1931em;\"><span style=\"top:-5.1931em;\"><span class=\"pstrut\" style=\"height:3.3214em;\"><\/span><span class=\"mord\"><span class=\"mord\"><\/span><span class=\"mord\"><span class=\"mord accent\"><span class=\"vlist-t vlist-t2\"><span class=\"vlist-r\"><span class=\"vlist\" style=\"height:0.6944em;\"><span style=\"top:-3em;\"><span class=\"pstrut\" style=\"height:3em;\"><\/span><span class=\"mord mathnormal\">&#x3BC;<\/span><\/span><span style=\"top:-3em;\"><span class=\"pstrut\" style=\"height:3em;\"><\/span><span class=\"accent-body\" style=\"left:-0.2222em;\"><span class=\"mord\">^<\/span><\/span><\/span><\/span><span class=\"vlist-s\">&#x200B;<\/span><\/span><span class=\"vlist-r\"><span class=\"vlist\" style=\"height:0.1944em;\"><span><\/span><\/span><\/span><\/span><\/span><span class=\"msupsub\"><span class=\"vlist-t vlist-t2\"><span class=\"vlist-r\"><span class=\"vlist\" style=\"height:0.3283em;\"><span style=\"top:-2.55em;margin-left:0em;margin-right:0.05em;\"><span class=\"pstrut\" style=\"height:2.7em;\"><\/span><span class=\"sizing reset-size6 size3 mtight\"><span class=\"mord mtight\"><span class=\"mord mathnormal mtight\" style=\"margin-right:0.05017em;\">B<\/span><\/span><\/span><\/span><\/span><span class=\"vlist-s\">&#x200B;<\/span><\/span><span class=\"vlist-r\"><span class=\"vlist\" style=\"height:0.15em;\"><span><\/span><\/span><\/span><\/span><\/span><\/span><span class=\"mspace\" style=\"margin-right:0.2778em;\"><\/span><span class=\"mrel\">=<\/span><span class=\"mspace\" style=\"margin-right:0.2778em;\"><\/span><span class=\"mord\"><span class=\"mopen nulldelimiter\"><\/span><span class=\"mfrac\"><span class=\"vlist-t vlist-t2\"><span class=\"vlist-r\"><span class=\"vlist\" style=\"height:1.3214em;\"><span style=\"top:-2.314em;\"><span class=\"pstrut\" style=\"height:3em;\"><\/span><span class=\"mord\"><span class=\"mord\">&#x2223;<\/span><span class=\"mord mathcal\" style=\"margin-right:0.03041em;\">B<\/span><span class=\"mord\">&#x2223;<\/span><\/span><\/span><span style=\"top:-3.23em;\"><span class=\"pstrut\" style=\"height:3em;\"><\/span><span class=\"frac-line\" style=\"border-bottom-width:0.04em;\"><\/span><\/span><span style=\"top:-3.677em;\"><span class=\"pstrut\" style=\"height:3em;\"><\/span><span class=\"mord\"><span class=\"mord\">1<\/span><\/span><\/span><\/span><span class=\"vlist-s\">&#x200B;<\/span><\/span><span class=\"vlist-r\"><span class=\"vlist\" style=\"height:0.936em;\"><span><\/span><\/span><\/span><\/span><\/span><span class=\"mclose nulldelimiter\"><\/span><\/span><span class=\"mspace\" style=\"margin-right:0.1667em;\"><\/span><span class=\"mop op-limits\"><span class=\"vlist-t vlist-t2\"><span class=\"vlist-r\"><span class=\"vlist\" style=\"height:1.05em;\"><span style=\"top:-1.8557em;margin-left:0em;\"><span class=\"pstrut\" style=\"height:3.05em;\"><\/span><span class=\"sizing reset-size6 size3 mtight\"><span class=\"mord mtight\"><span class=\"mord mathbf mtight\">x<\/span><span class=\"mrel mtight\">&#x2208;<\/span><span class=\"mord mathnormal mtight\" style=\"margin-right:0.05017em;\">B<\/span><\/span><\/span><\/span><span style=\"top:-3.05em;\"><span class=\"pstrut\" style=\"height:3.05em;\"><\/span><span><span class=\"mop op-symbol large-op\">&#x2211;<\/span><\/span><\/span><\/span><span class=\"vlist-s\">&#x200B;<\/span><\/span><span class=\"vlist-r\"><span class=\"vlist\" style=\"height:1.3217em;\"><span><\/span><\/span><\/span><\/span><\/span><span class=\"mspace\" style=\"margin-right:0.1667em;\"><\/span><span class=\"mord mathbf\">x<\/span><\/span><\/span><span style=\"top:-2.25em;\"><span class=\"pstrut\" style=\"height:3.3214em;\"><\/span><span class=\"mord\"><span class=\"mord\"><\/span><span class=\"mord\"><span class=\"mord accent\"><span class=\"vlist-t\"><span class=\"vlist-r\"><span class=\"vlist\" style=\"height:0.6944em;\"><span style=\"top:-3em;\"><span class=\"pstrut\" style=\"height:3em;\"><\/span><span class=\"mord mathnormal\" style=\"margin-right:0.03588em;\">&#x3C3;<\/span><\/span><span style=\"top:-3em;\"><span class=\"pstrut\" style=\"height:3em;\"><\/span><span class=\"accent-body\" style=\"left:-0.25em;\"><span class=\"mord\">^<\/span><\/span><\/span><\/span><\/span><\/span><\/span><span class=\"msupsub\"><span class=\"vlist-t vlist-t2\"><span class=\"vlist-r\"><span class=\"vlist\" style=\"height:0.8641em;\"><span style=\"top:-2.453em;margin-left:-0.0359em;margin-right:0.05em;\"><span class=\"pstrut\" style=\"height:2.7em;\"><\/span><span class=\"sizing reset-size6 size3 mtight\"><span class=\"mord mtight\"><span class=\"mord mathnormal mtight\" style=\"margin-right:0.05764em;\">E<\/span><\/span><\/span><\/span><span style=\"top:-3.113em;margin-right:0.05em;\"><span class=\"pstrut\" style=\"height:2.7em;\"><\/span><span class=\"sizing reset-size6 size3 mtight\"><span class=\"mord mtight\"><span class=\"mord mtight\">2<\/span><\/span><\/span><\/span><\/span><span class=\"vlist-s\">&#x200B;<\/span><\/span><span class=\"vlist-r\"><span class=\"vlist\" style=\"height:0.247em;\"><span><\/span><\/span><\/span><\/span><\/span><\/span><span class=\"mspace\" style=\"margin-right:0.2778em;\"><\/span><span class=\"mrel\">=<\/span><span class=\"mspace\" style=\"margin-right:0.2778em;\"><\/span><span class=\"mord\"><span class=\"mopen nulldelimiter\"><\/span><span class=\"mfrac\"><span class=\"vlist-t vlist-t2\"><span class=\"vlist-r\"><span class=\"vlist\" style=\"height:1.3214em;\"><span style=\"top:-2.314em;\"><span class=\"pstrut\" style=\"height:3em;\"><\/span><span class=\"mord\"><span class=\"mord\">&#x2223;<\/span><span class=\"mord mathcal\" style=\"margin-right:0.03041em;\">B<\/span><span class=\"mord\">&#x2223;<\/span><\/span><\/span><span style=\"top:-3.23em;\"><span class=\"pstrut\" style=\"height:3em;\"><\/span><span class=\"frac-line\" style=\"border-bottom-width:0.04em;\"><\/span><\/span><span style=\"top:-3.677em;\"><span class=\"pstrut\" style=\"height:3em;\"><\/span><span class=\"mord\"><span class=\"mord\">1<\/span><\/span><\/span><\/span><span class=\"vlist-s\">&#x200B;<\/span><\/span><span class=\"vlist-r\"><span class=\"vlist\" style=\"height:0.936em;\"><span><\/span><\/span><\/span><\/span><\/span><span class=\"mclose nulldelimiter\"><\/span><\/span><span class=\"mspace\" style=\"margin-right:0.1667em;\"><\/span><span class=\"mop op-limits\"><span class=\"vlist-t vlist-t2\"><span class=\"vlist-r\"><span class=\"vlist\" style=\"height:1.05em;\"><span style=\"top:-1.8557em;margin-left:0em;\"><span class=\"pstrut\" style=\"height:3.05em;\"><\/span><span class=\"sizing reset-size6 size3 mtight\"><span class=\"mord mtight\"><span class=\"mord mathbf mtight\">x<\/span><span class=\"mrel mtight\">&#x2208;<\/span><span class=\"mord mathnormal mtight\" style=\"margin-right:0.05017em;\">B<\/span><\/span><\/span><\/span><span style=\"top:-3.05em;\"><span class=\"pstrut\" style=\"height:3.05em;\"><\/span><span><span class=\"mop op-symbol large-op\">&#x2211;<\/span><\/span><\/span><\/span><span class=\"vlist-s\">&#x200B;<\/span><\/span><span class=\"vlist-r\"><span class=\"vlist\" style=\"height:1.3217em;\"><span><\/span><\/span><\/span><\/span><\/span><span class=\"mspace\" style=\"margin-right:0.1667em;\"><\/span><span class=\"minner\"><span class=\"minner\"><span class=\"mopen delimcenter\" style=\"top:0em;\">(<\/span><span class=\"mord mathbf\">x<\/span><span class=\"mspace\" style=\"margin-right:0.2222em;\"><\/span><span class=\"mbin\">&#x2212;<\/span><span class=\"mspace\" style=\"margin-right:0.2222em;\"><\/span><span class=\"mord\"><span class=\"mord accent\"><span class=\"vlist-t vlist-t2\"><span class=\"vlist-r\"><span class=\"vlist\" style=\"height:0.6944em;\"><span style=\"top:-3em;\"><span class=\"pstrut\" style=\"height:3em;\"><\/span><span class=\"mord mathnormal\">&#x3BC;<\/span><\/span><span style=\"top:-3em;\"><span class=\"pstrut\" style=\"height:3em;\"><\/span><span class=\"accent-body\" style=\"left:-0.2222em;\"><span class=\"mord\">^<\/span><\/span><\/span><\/span><span class=\"vlist-s\">&#x200B;<\/span><\/span><span class=\"vlist-r\"><span class=\"vlist\" style=\"height:0.1944em;\"><span><\/span><\/span><\/span><\/span><\/span><span class=\"msupsub\"><span class=\"vlist-t vlist-t2\"><span class=\"vlist-r\"><span class=\"vlist\" style=\"height:0.3283em;\"><span style=\"top:-2.55em;margin-left:0em;margin-right:0.05em;\"><span class=\"pstrut\" style=\"height:2.7em;\"><\/span><span class=\"sizing reset-size6 size3 mtight\"><span class=\"mord mtight\"><span class=\"mord mathnormal mtight\" style=\"margin-right:0.05017em;\">B<\/span><\/span><\/span><\/span><\/span><span class=\"vlist-s\">&#x200B;<\/span><\/span><span class=\"vlist-r\"><span class=\"vlist\" style=\"height:0.15em;\"><span><\/span><\/span><\/span><\/span><\/span><\/span><span class=\"mclose delimcenter\" style=\"top:0em;\">)<\/span><\/span><span class=\"msupsub\"><span class=\"vlist-t\"><span class=\"vlist-r\"><span class=\"vlist\" style=\"height:0.954em;\"><span style=\"top:-3.2029em;margin-right:0.05em;\"><span class=\"pstrut\" style=\"height:2.7em;\"><\/span><span class=\"sizing reset-size6 size3 mtight\"><span class=\"mord mtight\"><span class=\"mord mtight\">2<\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><span class=\"mspace\" style=\"margin-right:0.2222em;\"><\/span><span class=\"mbin\">+<\/span><span class=\"mspace\" style=\"margin-right:0.2222em;\"><\/span><span class=\"mord mathnormal\">&#x3F5;<\/span><\/span><\/span><\/span><span class=\"vlist-s\">&#x200B;<\/span><\/span><span class=\"vlist-r\"><span class=\"vlist\" style=\"height:2.6931em;\"><span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/p>\n<p><span class=\"katex\"><span class=\"katex-mathml\"><math xmlns=\"http:\/\/www.w3.org\/1998\/Math\/MathML\"><semantics><mrow><mi>&#x3F5;<\/mi><mo>&gt;<\/mo><mn>0<\/mn><\/mrow><annotation encoding=\"application\/x-tex\">\\epsilon &gt;0<\/annotation><\/semantics><\/math><\/span><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"strut\" style=\"height:0.5782em;vertical-align:-0.0391em;\"><\/span><span class=\"mord mathnormal\">&#x3F5;<\/span><span class=\"mspace\" style=\"margin-right:0.2778em;\"><\/span><span class=\"mrel\">&gt;<\/span><span class=\"mspace\" style=\"margin-right:0.2778em;\"><\/span><\/span><span class=\"base\"><span class=\"strut\" style=\"height:0.6444em;\"><\/span><span class=\"mord\">0<\/span><\/span><\/span><\/span>&#x7684;&#x6DFB;&#x52A0;&#x662F;&#x4E3A;&#x4E86;&#x9632;&#x6B62;&#x9664;&#x4EE5;0&#x7684;&#x60C5;&#x51B5;&#x3002;<\/p>\n<p>&#x4F18;&#x5316;&#x4E2D;&#x7684;&#x5404;&#x79CD;&#x566A;&#x58F0;&#x662F;&#x6709;&#x76CA;&#x7684;&#xFF0C;&#x901A;&#x5E38;&#x4F1A;&#x5BFC;&#x81F4;&#x66F4;&#x5FEB;&#x7684;&#x8BAD;&#x7EC3;&#x548C;&#x8F83;&#x5C11;&#x7684;&#x8FC7;&#x62DF;&#x5408;&#x3002;<\/p>\n<p>&#x901A;&#x8FC7;&#x79FB;&#x52A8;&#x5E73;&#x5747;&#x4F30;&#x7B97;&#x6574;&#x4E2A;&#x8BAD;&#x7EC3;&#x6570;&#x636E;&#x96C6;&#x7684;&#x6837;&#x672C;&#x5747;&#x503C;&#x548C;&#x65B9;&#x5DEE;&#xFF0C;&#x5E76;&#x5728;&#x9884;&#x6D4B;&#x65F6;&#x4F7F;&#x7528;&#x4ED6;&#x4EEC;&#x5F97;&#x5230;&#x786E;&#x5B9A;&#x7684;&#x8F93;&#x51FA;&#x3002;<\/p>\n<pre data-role=\"codeBlock\" data-info=\"python\" class=\"language-python\"><span class=\"token comment\"># &#x6BCF;&#x6B21;&#x524D;&#x5411;&#x4F20;&#x64AD;&#x65F6;&#xFF0C;&#x66F4;&#x65B0;&#x79FB;&#x52A8;&#x5E73;&#x5747;&#x7684;&#x5747;&#x503C;&#x548C;&#x65B9;&#x5DEE;<\/span>\nmomentum<span class=\"token operator\">=<\/span><span class=\"token number\">0.9<\/span>\nmoving_mean <span class=\"token operator\">=<\/span> momentum <span class=\"token operator\">*<\/span> moving_mean <span class=\"token operator\">+<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token number\">1<\/span> <span class=\"token operator\">-<\/span> momentum<span class=\"token punctuation\">)<\/span> <span class=\"token operator\">*<\/span> batch_mean\nmoving_var <span class=\"token operator\">=<\/span> momentum <span class=\"token operator\">*<\/span> moving_var <span class=\"token operator\">+<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token number\">1<\/span> <span class=\"token operator\">-<\/span> momentum<span class=\"token punctuation\">)<\/span> <span class=\"token operator\">*<\/span> batch_var\n<\/pre><h1 class=\"mume-header\" id=\"%E6%AE%8B%E5%B7%AE%E7%BD%91%E7%BB%9Cresnet\">&#x6B8B;&#x5DEE;&#x7F51;&#x7EDC;&#xFF08;ResNet&#xFF09;<\/h1>\n\n<h2 class=\"mume-header\" id=\"%E5%9F%BA%E6%9C%AC%E6%80%9D%E6%83%B3\">&#x57FA;&#x672C;&#x601D;&#x60F3;<\/h2>\n\n<p>&#x5F53;&#x66F4;&#x6362;&#x6846;&#x67B6;&#x65F6;&#xFF0C;&#x53EA;&#x6709;&#x5F53;&#x66F4;&#x6362;&#x540E;&#x8F83;&#x590D;&#x6742;&#x7684;&#x51FD;&#x6570;&#x7C7B;&#x5305;&#x542B;&#x539F;&#x672C;&#x8F83;&#x5C0F;&#x7684;&#x51FD;&#x6570;&#x7C7B;&#xFF08;&#x5D4C;&#x5957;&#x51FD;&#x6570;&#x7C7B;&#xFF09;&#x65F6;&#xFF0C;&#x624D;&#x80FD;&#x786E;&#x4FDD;&#x633A;&#x9AD8;&#x6027;&#x80FD;&#x3002;<\/p>\n<p>&#x6B8B;&#x5DEE;&#x7F51;&#x7EDC;&#x7684;&#x6838;&#x5FC3;&#x601D;&#x60F3;&#x662F;&#xFF1A;<strong>&#x6BCF;&#x4E2A;&#x9644;&#x52A0;&#x5C42;&#x90FD;&#x5E94;&#x8BE5;&#x66F4;&#x5BB9;&#x6613;&#x5730;&#x5305;&#x542B;&#x539F;&#x59CB;&#x51FD;&#x6570;&#x4F5C;&#x4E3A;&#x5176;&#x5143;&#x7D20;&#x4E4B;&#x4E00;<\/strong>&#x3002;<\/p>\n<h2 class=\"mume-header\" id=\"%E6%AE%8B%E5%B7%AE%E5%9D%97residual-block\">&#x6B8B;&#x5DEE;&#x5757;&#xFF08;residual block&#xFF09;<\/h2>\n\n<p><img src=\"https:\/\/zh.d2l.ai\/_images\/residual-block.svg\" alt><\/p>\n<p>&#x4E0A;&#x56FE;&#x53F3;&#x8FB9;&#x4E3A;&#x4E00;&#x4E2A;&#x6B8B;&#x5DEE;&#x5757;&#x3002;&#x5982;&#x679C;&#x60F3;&#x8981;&#x6539;&#x53D8;&#x901A;&#x9053;&#x6570;&#xFF0C;&#x9700;&#x5F15;&#x5165;&#x4E00;&#x4E2A;<span class=\"katex\"><span class=\"katex-mathml\"><math xmlns=\"http:\/\/www.w3.org\/1998\/Math\/MathML\"><semantics><mrow><mn>1<\/mn><mo>&#xD7;<\/mo><mn>1<\/mn><\/mrow><annotation encoding=\"application\/x-tex\">1\\times 1<\/annotation><\/semantics><\/math><\/span><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"strut\" style=\"height:0.7278em;vertical-align:-0.0833em;\"><\/span><span class=\"mord\">1<\/span><span class=\"mspace\" style=\"margin-right:0.2222em;\"><\/span><span class=\"mbin\">&#xD7;<\/span><span class=\"mspace\" style=\"margin-right:0.2222em;\"><\/span><\/span><span class=\"base\"><span class=\"strut\" style=\"height:0.6444em;\"><\/span><span class=\"mord\">1<\/span><\/span><\/span><\/span>&#x5377;&#x79EF;&#x5C42;&#x3002;<\/p>\n<p><img src=\"https:\/\/zh.d2l.ai\/_images\/resnet-block.svg\" alt><\/p>\n<h2 class=\"mume-header\" id=\"resnet-18\">ResNet-18<\/h2>\n\n<p><img src=\"https:\/\/zh.d2l.ai\/_images\/resnet18.svg\" alt><\/p>\n<ul>\n<li>4&#x4E2A;&#x7531;&#x6B8B;&#x5DEE;&#x5757;&#x7EC4;&#x6210;&#x7684;&#x6A21;&#x5757;<\/li>\n<li>&#x6BCF;&#x4E2A;&#x6A21;&#x5757;&#x6709;4&#x4E2A;&#x5377;&#x79EF;&#x5C42;<\/li>\n<li>&#x518D;&#x52A0;&#x4E0A;&#x5F00;&#x59CB;&#x7684;<span class=\"katex\"><span class=\"katex-mathml\"><math xmlns=\"http:\/\/www.w3.org\/1998\/Math\/MathML\"><semantics><mrow><mn>7<\/mn><mo>&#xD7;<\/mo><mn>7<\/mn><\/mrow><annotation encoding=\"application\/x-tex\">7\\times 7<\/annotation><\/semantics><\/math><\/span><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"strut\" style=\"height:0.7278em;vertical-align:-0.0833em;\"><\/span><span class=\"mord\">7<\/span><span class=\"mspace\" style=\"margin-right:0.2222em;\"><\/span><span class=\"mbin\">&#xD7;<\/span><span class=\"mspace\" style=\"margin-right:0.2222em;\"><\/span><\/span><span class=\"base\"><span class=\"strut\" style=\"height:0.6444em;\"><\/span><span class=\"mord\">7<\/span><\/span><\/span><\/span>&#x5377;&#x79EF;&#x5C42;&#x548C;&#x6700;&#x540E;&#x7684;&#x5168;&#x8FDE;&#x63A5;&#x5C42;<\/li>\n<li>&#x5171;18&#x5C42;<\/li>\n<\/ul>\n<h1 class=\"mume-header\" id=\"%E7%A8%A0%E5%AF%86%E8%BF%9E%E6%8E%A5%E7%BD%91%E7%BB%9Cdensenet\">&#x7A20;&#x5BC6;&#x8FDE;&#x63A5;&#x7F51;&#x7EDC;&#xFF08;DenseNet&#xFF09;<\/h1>\n\n<p><img src=\"https:\/\/zh.d2l.ai\/_images\/densenet-block.svg\" alt><\/p>\n<p>ResNet&#x548C;DenseNet&#x7684;&#x5173;&#x952E;&#x533A;&#x522B;&#x5728;&#x4E8E;&#xFF1A;DenseNet<strong>&#x8F93;&#x51FA;&#x662F;&#x8FDE;&#x63A5;<\/strong>&#xFF08;[,]&#x8868;&#x793A;&#xFF09;&#xFF0C;&#x800C;&#x4E0D;&#x662F;&#x5982;ResNet&#x7684;&#x7B80;&#x5355;&#x76F8;&#x52A0;&#x3002;<\/p>\n<p><span class=\"katex-display\"><span class=\"katex\"><span class=\"katex-mathml\"><math xmlns=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" display=\"block\"><semantics><mrow><mi mathvariant=\"bold\">x<\/mi><mo>&#x2192;<\/mo><mrow><mo fence=\"true\">[<\/mo><mi mathvariant=\"bold\">x<\/mi><mo separator=\"true\">,<\/mo><msub><mi>f<\/mi><mn>1<\/mn><\/msub><mo stretchy=\"false\">(<\/mo><mi mathvariant=\"bold\">x<\/mi><mo stretchy=\"false\">)<\/mo><mo separator=\"true\">,<\/mo><msub><mi>f<\/mi><mn>2<\/mn><\/msub><mrow><mo fence=\"true\">(<\/mo><mrow><mo fence=\"true\">[<\/mo><mi mathvariant=\"bold\">x<\/mi><mo separator=\"true\">,<\/mo><msub><mi>f<\/mi><mn>1<\/mn><\/msub><mo stretchy=\"false\">(<\/mo><mi mathvariant=\"bold\">x<\/mi><mo stretchy=\"false\">)<\/mo><mo fence=\"true\">]<\/mo><\/mrow><mo fence=\"true\">)<\/mo><\/mrow><mo separator=\"true\">,<\/mo><msub><mi>f<\/mi><mn>3<\/mn><\/msub><mrow><mo fence=\"true\">(<\/mo><mrow><mo fence=\"true\">[<\/mo><mi mathvariant=\"bold\">x<\/mi><mo separator=\"true\">,<\/mo><msub><mi>f<\/mi><mn>1<\/mn><\/msub><mo stretchy=\"false\">(<\/mo><mi mathvariant=\"bold\">x<\/mi><mo stretchy=\"false\">)<\/mo><mo separator=\"true\">,<\/mo><msub><mi>f<\/mi><mn>2<\/mn><\/msub><mrow><mo fence=\"true\">(<\/mo><mrow><mo fence=\"true\">[<\/mo><mi mathvariant=\"bold\">x<\/mi><mo separator=\"true\">,<\/mo><msub><mi>f<\/mi><mn>1<\/mn><\/msub><mo stretchy=\"false\">(<\/mo><mi mathvariant=\"bold\">x<\/mi><mo stretchy=\"false\">)<\/mo><mo fence=\"true\">]<\/mo><\/mrow><mo fence=\"true\">)<\/mo><\/mrow><mo fence=\"true\">]<\/mo><\/mrow><mo fence=\"true\">)<\/mo><\/mrow><mo separator=\"true\">,<\/mo><mo>&#x2026;<\/mo><mo fence=\"true\">]<\/mo><\/mrow><\/mrow><annotation encoding=\"application\/x-tex\">\\mathbf{x} \\rightarrow\\left[\\mathbf{x}, f_{1}(\\mathbf{x}), f_{2}\\left(\\left[\\mathbf{x}, f_{1}(\\mathbf{x})\\right]\\right), f_{3}\\left(\\left[\\mathbf{x}, f_{1}(\\mathbf{x}), f_{2}\\left(\\left[\\mathbf{x}, f_{1}(\\mathbf{x})\\right]\\right)\\right]\\right), \\ldots \\right]<\/annotation><\/semantics><\/math><\/span><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"strut\" style=\"height:0.4444em;\"><\/span><span class=\"mord mathbf\">x<\/span><span class=\"mspace\" style=\"margin-right:0.2778em;\"><\/span><span class=\"mrel\">&#x2192;<\/span><span class=\"mspace\" style=\"margin-right:0.2778em;\"><\/span><\/span><span class=\"base\"><span class=\"strut\" style=\"height:1em;vertical-align:-0.25em;\"><\/span><span class=\"minner\"><span class=\"mopen delimcenter\" style=\"top:0em;\">[<\/span><span class=\"mord mathbf\">x<\/span><span class=\"mpunct\">,<\/span><span class=\"mspace\" style=\"margin-right:0.1667em;\"><\/span><span class=\"mord\"><span class=\"mord mathnormal\" style=\"margin-right:0.10764em;\">f<\/span><span class=\"msupsub\"><span class=\"vlist-t vlist-t2\"><span class=\"vlist-r\"><span class=\"vlist\" style=\"height:0.3011em;\"><span style=\"top:-2.55em;margin-left:-0.1076em;margin-right:0.05em;\"><span class=\"pstrut\" style=\"height:2.7em;\"><\/span><span class=\"sizing reset-size6 size3 mtight\"><span class=\"mord mtight\"><span class=\"mord mtight\">1<\/span><\/span><\/span><\/span><\/span><span class=\"vlist-s\">&#x200B;<\/span><\/span><span class=\"vlist-r\"><span class=\"vlist\" style=\"height:0.15em;\"><span><\/span><\/span><\/span><\/span><\/span><\/span><span class=\"mopen\">(<\/span><span class=\"mord mathbf\">x<\/span><span class=\"mclose\">)<\/span><span class=\"mpunct\">,<\/span><span class=\"mspace\" style=\"margin-right:0.1667em;\"><\/span><span class=\"mord\"><span class=\"mord mathnormal\" style=\"margin-right:0.10764em;\">f<\/span><span class=\"msupsub\"><span class=\"vlist-t vlist-t2\"><span class=\"vlist-r\"><span class=\"vlist\" style=\"height:0.3011em;\"><span style=\"top:-2.55em;margin-left:-0.1076em;margin-right:0.05em;\"><span class=\"pstrut\" style=\"height:2.7em;\"><\/span><span class=\"sizing reset-size6 size3 mtight\"><span class=\"mord mtight\"><span class=\"mord mtight\">2<\/span><\/span><\/span><\/span><\/span><span class=\"vlist-s\">&#x200B;<\/span><\/span><span class=\"vlist-r\"><span class=\"vlist\" style=\"height:0.15em;\"><span><\/span><\/span><\/span><\/span><\/span><\/span><span class=\"mspace\" style=\"margin-right:0.1667em;\"><\/span><span class=\"minner\"><span class=\"mopen delimcenter\" style=\"top:0em;\">(<\/span><span class=\"minner\"><span class=\"mopen delimcenter\" style=\"top:0em;\">[<\/span><span class=\"mord mathbf\">x<\/span><span class=\"mpunct\">,<\/span><span class=\"mspace\" style=\"margin-right:0.1667em;\"><\/span><span class=\"mord\"><span class=\"mord mathnormal\" style=\"margin-right:0.10764em;\">f<\/span><span class=\"msupsub\"><span class=\"vlist-t vlist-t2\"><span class=\"vlist-r\"><span class=\"vlist\" style=\"height:0.3011em;\"><span style=\"top:-2.55em;margin-left:-0.1076em;margin-right:0.05em;\"><span class=\"pstrut\" style=\"height:2.7em;\"><\/span><span class=\"sizing reset-size6 size3 mtight\"><span class=\"mord mtight\"><span class=\"mord mtight\">1<\/span><\/span><\/span><\/span><\/span><span class=\"vlist-s\">&#x200B;<\/span><\/span><span class=\"vlist-r\"><span class=\"vlist\" style=\"height:0.15em;\"><span><\/span><\/span><\/span><\/span><\/span><\/span><span class=\"mopen\">(<\/span><span class=\"mord mathbf\">x<\/span><span class=\"mclose\">)<\/span><span class=\"mclose delimcenter\" style=\"top:0em;\">]<\/span><\/span><span class=\"mclose delimcenter\" style=\"top:0em;\">)<\/span><\/span><span class=\"mspace\" style=\"margin-right:0.1667em;\"><\/span><span class=\"mpunct\">,<\/span><span class=\"mspace\" style=\"margin-right:0.1667em;\"><\/span><span class=\"mord\"><span class=\"mord mathnormal\" style=\"margin-right:0.10764em;\">f<\/span><span class=\"msupsub\"><span class=\"vlist-t vlist-t2\"><span class=\"vlist-r\"><span class=\"vlist\" style=\"height:0.3011em;\"><span style=\"top:-2.55em;margin-left:-0.1076em;margin-right:0.05em;\"><span class=\"pstrut\" style=\"height:2.7em;\"><\/span><span class=\"sizing reset-size6 size3 mtight\"><span class=\"mord mtight\"><span class=\"mord mtight\">3<\/span><\/span><\/span><\/span><\/span><span class=\"vlist-s\">&#x200B;<\/span><\/span><span class=\"vlist-r\"><span class=\"vlist\" style=\"height:0.15em;\"><span><\/span><\/span><\/span><\/span><\/span><\/span><span class=\"mspace\" style=\"margin-right:0.1667em;\"><\/span><span class=\"minner\"><span class=\"mopen delimcenter\" style=\"top:0em;\">(<\/span><span class=\"minner\"><span class=\"mopen delimcenter\" style=\"top:0em;\">[<\/span><span class=\"mord mathbf\">x<\/span><span class=\"mpunct\">,<\/span><span class=\"mspace\" style=\"margin-right:0.1667em;\"><\/span><span class=\"mord\"><span class=\"mord mathnormal\" style=\"margin-right:0.10764em;\">f<\/span><span class=\"msupsub\"><span class=\"vlist-t vlist-t2\"><span class=\"vlist-r\"><span class=\"vlist\" style=\"height:0.3011em;\"><span style=\"top:-2.55em;margin-left:-0.1076em;margin-right:0.05em;\"><span class=\"pstrut\" style=\"height:2.7em;\"><\/span><span class=\"sizing reset-size6 size3 mtight\"><span class=\"mord mtight\"><span class=\"mord mtight\">1<\/span><\/span><\/span><\/span><\/span><span class=\"vlist-s\">&#x200B;<\/span><\/span><span class=\"vlist-r\"><span class=\"vlist\" style=\"height:0.15em;\"><span><\/span><\/span><\/span><\/span><\/span><\/span><span class=\"mopen\">(<\/span><span class=\"mord mathbf\">x<\/span><span class=\"mclose\">)<\/span><span class=\"mpunct\">,<\/span><span class=\"mspace\" style=\"margin-right:0.1667em;\"><\/span><span class=\"mord\"><span class=\"mord mathnormal\" style=\"margin-right:0.10764em;\">f<\/span><span class=\"msupsub\"><span class=\"vlist-t vlist-t2\"><span class=\"vlist-r\"><span class=\"vlist\" style=\"height:0.3011em;\"><span style=\"top:-2.55em;margin-left:-0.1076em;margin-right:0.05em;\"><span class=\"pstrut\" style=\"height:2.7em;\"><\/span><span class=\"sizing reset-size6 size3 mtight\"><span class=\"mord mtight\"><span class=\"mord mtight\">2<\/span><\/span><\/span><\/span><\/span><span class=\"vlist-s\">&#x200B;<\/span><\/span><span class=\"vlist-r\"><span class=\"vlist\" style=\"height:0.15em;\"><span><\/span><\/span><\/span><\/span><\/span><\/span><span class=\"mspace\" style=\"margin-right:0.1667em;\"><\/span><span class=\"minner\"><span class=\"mopen delimcenter\" style=\"top:0em;\">(<\/span><span class=\"minner\"><span class=\"mopen delimcenter\" style=\"top:0em;\">[<\/span><span class=\"mord mathbf\">x<\/span><span class=\"mpunct\">,<\/span><span class=\"mspace\" style=\"margin-right:0.1667em;\"><\/span><span class=\"mord\"><span class=\"mord mathnormal\" style=\"margin-right:0.10764em;\">f<\/span><span class=\"msupsub\"><span class=\"vlist-t vlist-t2\"><span class=\"vlist-r\"><span class=\"vlist\" style=\"height:0.3011em;\"><span style=\"top:-2.55em;margin-left:-0.1076em;margin-right:0.05em;\"><span class=\"pstrut\" style=\"height:2.7em;\"><\/span><span class=\"sizing reset-size6 size3 mtight\"><span class=\"mord mtight\"><span class=\"mord mtight\">1<\/span><\/span><\/span><\/span><\/span><span class=\"vlist-s\">&#x200B;<\/span><\/span><span class=\"vlist-r\"><span class=\"vlist\" style=\"height:0.15em;\"><span><\/span><\/span><\/span><\/span><\/span><\/span><span class=\"mopen\">(<\/span><span class=\"mord mathbf\">x<\/span><span class=\"mclose\">)<\/span><span class=\"mclose delimcenter\" style=\"top:0em;\">]<\/span><\/span><span class=\"mclose delimcenter\" style=\"top:0em;\">)<\/span><\/span><span class=\"mclose delimcenter\" style=\"top:0em;\">]<\/span><\/span><span class=\"mclose delimcenter\" style=\"top:0em;\">)<\/span><\/span><span class=\"mspace\" style=\"margin-right:0.1667em;\"><\/span><span class=\"mpunct\">,<\/span><span class=\"mspace\" style=\"margin-right:0.1667em;\"><\/span><span class=\"minner\">&#x2026;<\/span><span class=\"mclose delimcenter\" style=\"top:0em;\">]<\/span><\/span><\/span><\/span><\/span><\/span><\/p>\n<p>&#x7A20;&#x5BC6;&#x7F51;&#x7EDC;&#x7684;&#x7EC4;&#x6210;&#x90E8;&#x5206;&#xFF1A;<\/p>\n<ul>\n<li>&#x7A20;&#x5BC6;&#x5757;&#xFF08;dense block&#xFF09;&#xFF1A;&#x5B9A;&#x4E49;&#x5982;&#x4F55;&#x8FDE;&#x63A5;&#x8F93;&#x5165;&#x548C;&#x8F93;&#x51FA;<\/li>\n<li>&#x8FC7;&#x6E21;&#x5C42;&#xFF08;transition layer&#xFF09;&#xFF1A;&#x63A7;&#x5236;&#x901A;&#x9053;&#x6570;&#x91CF;&#xFF0C;&#x964D;&#x4F4E;&#x590D;&#x6742;&#x6027;<\/li>\n<\/ul>\n<h2 class=\"mume-header\" id=\"%E7%A8%A0%E5%AF%86%E5%9D%97\">&#x7A20;&#x5BC6;&#x5757;<\/h2>\n\n<p><img src=\"https:\/\/zh.d2l.ai\/_images\/densenet.svg\" alt><\/p>\n<p>&#x5377;&#x79EF;&#x5757;&#x7684;&#x901A;&#x9053;&#x6570;&#x63A7;&#x5236;&#x4E86;&#x8F93;&#x51FA;&#x901A;&#x9053;&#x6570;&#x76F8;&#x5BF9;&#x4E8E;&#x8F93;&#x5165;&#x901A;&#x9053;&#x6570;&#x7684;&#x589E;&#x957F;&#xFF0C;&#x56E0;&#x6B64;&#x88AB;&#x79F0;&#x4E3A;&#x589E;&#x957F;&#x7387;&#xFF08;growth rate&#xFF09;&#x3002;<\/p>\n<h2 class=\"mume-header\" id=\"%E8%BF%87%E6%B8%A1%E5%B1%82\">&#x8FC7;&#x6E21;&#x5C42;<\/h2>\n\n<ul>\n<li>&#x901A;&#x8FC7;<span class=\"katex\"><span class=\"katex-mathml\"><math xmlns=\"http:\/\/www.w3.org\/1998\/Math\/MathML\"><semantics><mrow><mn>1<\/mn><mo>&#xD7;<\/mo><mn>1<\/mn><\/mrow><annotation encoding=\"application\/x-tex\">1\\times 1<\/annotation><\/semantics><\/math><\/span><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"strut\" style=\"height:0.7278em;vertical-align:-0.0833em;\"><\/span><span class=\"mord\">1<\/span><span class=\"mspace\" style=\"margin-right:0.2222em;\"><\/span><span class=\"mbin\">&#xD7;<\/span><span class=\"mspace\" style=\"margin-right:0.2222em;\"><\/span><\/span><span class=\"base\"><span class=\"strut\" style=\"height:0.6444em;\"><\/span><span class=\"mord\">1<\/span><\/span><\/span><\/span>&#x5377;&#x79EF;&#x5C42;&#x51CF;&#x5C0F;&#x901A;&#x9053;&#x6570;<\/li>\n<li>&#x4F7F;&#x7528;&#x6B65;&#x5E45;&#x4E3A;2&#x7684;&#x5E73;&#x5747;&#x6C47;&#x805A;&#x5C42;&#x51CF;&#x534A;&#x9AD8;&#x548C;&#x5BBD;<\/li>\n<\/ul>\n<h2 class=\"mume-header\" id=\"densenet%E6%A8%A1%E5%9E%8B\">DenseNet&#x6A21;&#x578B;<\/h2>\n\n<p>&#x7565;<\/p>\n\n      <\/div>\n      \n      \n  \n","protected":false},"excerpt":{"rendered":"<p>\u300a\u52a8\u624b\u5b66\u6df1\u5ea6\u5b66\u4e60\u300b \u2014 \u52a8\u624b\u5b66\u6df1\u5ea6\u5b66\u4e60 2.0.0-beta0 documentation (d2l.ai)<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[31,20],"tags":[32,33,26,25],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"jetpack_likes_enabled":true,"_links":{"self":[{"href":"https:\/\/www.lazybirds.top\/index.php?rest_route=\/wp\/v2\/posts\/346"}],"collection":[{"href":"https:\/\/www.lazybirds.top\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.lazybirds.top\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.lazybirds.top\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.lazybirds.top\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=346"}],"version-history":[{"count":1,"href":"https:\/\/www.lazybirds.top\/index.php?rest_route=\/wp\/v2\/posts\/346\/revisions"}],"predecessor-version":[{"id":347,"href":"https:\/\/www.lazybirds.top\/index.php?rest_route=\/wp\/v2\/posts\/346\/revisions\/347"}],"wp:attachment":[{"href":"https:\/\/www.lazybirds.top\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=346"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.lazybirds.top\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=346"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.lazybirds.top\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=346"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}