{"id":173,"date":"2024-02-28T00:42:59","date_gmt":"2024-02-27T16:42:59","guid":{"rendered":"http:\/\/tobykskgd.life\/?p=173"},"modified":"2024-11-14T22:13:52","modified_gmt":"2024-11-14T14:13:52","slug":"08","status":"publish","type":"post","link":"https:\/\/tobykskgd.life\/index.php\/08\/","title":{"rendered":"\u674e\u5b8f\u6bc5\u673a\u5668\u5b66\u4e60\u8bfe\u7a0b\u7b14\u8bb0EP4"},"content":{"rendered":"\n<p>\u3010\u7c7b\u795e\u7ecf\u7f51\u7edc\u8bad\u7ec3\u4e0d\u8d77\u6765\u600e\u4e48\u529e\u3011\u674e\u5b8f\u6bc52021\/2022\u6625\u673a\u5668\u5b66\u4e60\u8bfe\u7a0b\u7b14\u8bb0EP4\uff08P19-P22\uff09<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/tobykskgd.life\/wp-content\/uploads\/2024\/02\/\u5c4f\u5e55\u622a\u56fe-2024-02-05-213355.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  loading=\"lazy\" decoding=\"async\" width=\"432\" height=\"218\" data-original=\"https:\/\/tobykskgd.life\/wp-content\/uploads\/2024\/02\/\u5c4f\u5e55\u622a\u56fe-2024-02-05-213355.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" class=\"wp-image-37\"  sizes=\"auto, (max-width: 432px) 100vw, 432px\" \/><\/div><\/figure>\n\n\n\n<p>\u4ece\u4eca\u5929\u5f00\u59cb\u6211\u5c06\u5b66\u4e60\u674e\u5b8f\u6bc5\u6559\u6388\u7684\u673a\u5668\u5b66\u4e60\u89c6\u9891\uff0c\u4e0b\u9762\u662f\u8bfe\u7a0b\u7684\u8fde\u63a5<a href=\"https:\/\/www.bilibili.com\/video\/BV1Wv411h7kN\/?spm_id_from=333.337.search-card.all.click&amp;vd_source=fa9de75b9e5251495ee15fc767cb5892\">(\u5f3a\u63a8)\u674e\u5b8f\u6bc52021\/2022\u6625\u673a\u5668\u5b66\u4e60\u8bfe\u7a0b_\u54d4\u54e9\u54d4\u54e9_bilibili<\/a>\u3002\u4e00\u5171\u6709155\u4e2a\u89c6\u9891\uff0c\u4e89\u53d6\u90fd\u5b66\u4e60\u5b8c\u6210\u5427\u3002<\/p>\n\n\n\n<p>\u90a3\u4e48\u9996\u5148\u8fd9\u95e8\u8bfe\u7a0b\u9700\u8981\u6709\u4e00\u5b9a\u7684\u4ee3\u7801\u57fa\u7840\uff0c\u7b80\u5355\u5b66\u4e60\u4e00\u4e0bPython\u7684\u57fa\u672c\u7528\u6cd5\uff0c\u8fd8\u6709\u91cc\u9762\u7684NumPy\u5e93\u7b49\u7b49\u7684\u57fa\u672c\u77e5\u8bc6\u3002\u518d\u5c31\u662f\u6570\u5b66\u65b9\u9762\u7684\u57fa\u7840\u5566\uff0c\u5fae\u79ef\u5206\u3001\u7ebf\u6027\u4ee3\u6570\u548c\u6982\u7387\u8bba\u7684\u57fa\u7840\u90fd\u662f\u542c\u61c2\u8fd9\u95e8\u8bfe\u5fc5\u987b\u7684\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p>\u8fd9\u51e0\u8282\u8bfe\u4e3b\u8981\u8bb2\u4e86\u7c7b\u795e\u7ecf\u7f51\u7edc\u8bad\u7ec3\u4e0d\u8d77\u6765\u6211\u4eec\u5e94\u8be5\u600e\u4e48\u529e\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity is-style-dots\"\/>\n\n\n\n<p>\u7b2c\u4e00\u79cd\u662f\u5728\u8bad\u7ec3\u65f6\uff0c\u6211\u4eec\u53ef\u80fd\u4f1a\u9047\u5230\u68af\u5ea6g\u5df2\u7ecf\u63a5\u8fd10\uff0closs\u51e0\u4e4e\u4e0d\u518d\u4e0b\u964d\uff0c\u4f46\u662floss\u7684\u503c\u4f9d\u65e7\u4e0d\u591f\u5c0f\uff0c\u6ca1\u6709\u8fbe\u5230\u6211\u4eec\u7684\u9884\u671f\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/tobykskgd.life\/wp-content\/uploads\/2024\/02\/\u5fae\u4fe1\u56fe\u7247_20240227215608-1.jpg'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  loading=\"lazy\" decoding=\"async\" width=\"574\" height=\"261\" data-original=\"https:\/\/tobykskgd.life\/wp-content\/uploads\/2024\/02\/\u5fae\u4fe1\u56fe\u7247_20240227215608-1.jpg\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" class=\"wp-image-175\"  sizes=\"auto, (max-width: 574px) 100vw, 574px\" \/><\/div><\/figure>\n\n\n\n<p>\u68af\u5ea6gradient\u4e3a\u96f6\u7684\u65f6\u5019\uff0c\u4e00\u822c\u4f1a\u6709\u4e0b\u9762\u4e24\u79cd\u60c5\u51b5\uff1a\u5c40\u90e8\u6700\u5c0f\u503c\u548c\u978d\u70b9\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/tobykskgd.life\/wp-content\/uploads\/2024\/02\/\u5fae\u4fe1\u56fe\u7247_20240227220039.jpg'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  loading=\"lazy\" decoding=\"async\" width=\"1007\" height=\"650\" data-original=\"https:\/\/tobykskgd.life\/wp-content\/uploads\/2024\/02\/\u5fae\u4fe1\u56fe\u7247_20240227220039.jpg\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" class=\"wp-image-176\"  sizes=\"auto, (max-width: 1007px) 100vw, 1007px\" \/><\/div><\/figure>\n\n\n\n<p>\u968f\u7740\u795e\u7ecf\u7f51\u7edc\u590d\u6742\uff0closs\u7684\u51fd\u6570\u6211\u4eec\u96be\u4ee5\u8868\u793a\uff0c\u90a3\u4e48\u6211\u4eec\u5e94\u8be5\u5982\u4f55\u6765\u533a\u522b\u5c40\u90e8\u6700\u503c\u548c\u978d\u70b9\uff1f<\/p>\n\n\n\n<p>\u867d\u7136\u6211\u4eec\u65e0\u6cd5\u660e\u786e\u5730\u5199\u51fa\u635f\u5931\u51fd\u6570L(\u03b8),\u4f46\u662f\u03b8&#8217;\u9644\u8fd1\u7684\u51fd\u6570\u662f\u53ef\u4ee5\u88ab\u5199\u51fa\u6765\u7684\u3002\u5927\u6982\u7684L(\u03b8)\u5982\u4e0b\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/tobykskgd.life\/wp-content\/uploads\/2024\/02\/\u5fae\u4fe1\u56fe\u7247_20240227222639-1024x489.jpg'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"489\" data-original=\"https:\/\/tobykskgd.life\/wp-content\/uploads\/2024\/02\/\u5fae\u4fe1\u56fe\u7247_20240227222639-1024x489.jpg\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" class=\"wp-image-177\"  sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/div><\/figure>\n\n\n\n<p>\u8fd9\u91cc\u5927\u6982\u7684L(\u03b8)\u5f0f\u5b50\u4e0eg\u548cH\u6709\u5173\uff0cg\u5c31\u662f\u4e00\u6b21\u5fae\u5206\uff0cH\u5c31\u662f\u91cc\u9762\u6709\u4e8c\u6b21\u5fae\u5206\u7684\u9879\u3002<\/p>\n\n\n\n<p>\u56e0\u4e3a\u8fd9\u91cc\u6211\u4eec\u8ba8\u8bba\u7684\u662f\u5728\u9a7b\u70b9\u4e0a\u7684\u60c5\u51b5\uff0c\u8fd9\u91cc\u7684g=0\uff0c\u6240\u4ee5\u5f0f\u5b50\u4e2d\u7eff\u6846\u7684\u90e8\u5206\u53ef\u4ee5\u76f4\u63a5\u9664\u53bb\u4e0d\u770b\u3002\u800c\u53f3\u8fb9\u7ea2\u8272\u6846\u4e2d\u7684\u5f0f\u5b50\u5c31\u53ef\u4ee5\u5e2e\u52a9\u6211\u4eec\u5224\u65ad\u5c40\u90e8\u6700\u503c\u548c\u978d\u70b9\u3002\u8fd9\u91cc\u5c06\u7ea2\u8272\u6846\u4e2d\u7684\u5f0f\u5b50\u7b80\u5199\u6210v<sup>T<\/sup>Hv\uff0cv\u8868\u793a\u6a21\u578b\u7684\u8f93\u51fa\u53c2\u6570\u03b8\u548clabel\u503c\u03b8&#8217;\u7684\u5dee\u503c\u3002<\/p>\n\n\n\n<p>\u9664\u53bb\u4e86\u7eff\u6846\u4e2d\u7684\u5f0f\u5b50\uff0c\u6211\u4eec\u53ea\u628a\u76ee\u5149\u653e\u5728v<sup>T<\/sup>Hv\u4e0a\uff0c\u5bf9\u4e8e\u6240\u6709\u7684v\uff08\u4e5f\u5c31\u662f\u8bf4\u4e0d\u8bba\u03b8\u7684\u503c\u662f\u4ec0\u4e48\uff09\uff1a<\/p>\n\n\n\n<p>\u82e5v<sup>T<\/sup>Hv&gt;0\uff0c\u4e5f\u5c31\u662f\u8bf4\u5728\u03b8&#8217;\u9644\u8fd1\uff0cL(\u03b8)&gt;L(\u03b8&#8217;)\u6052\u6210\u7acb\uff0c\u4e5f\u5c31\u662f\u8bf4L(\u03b8&#8217;)\u662f\u5c40\u90e8\u6700\u5c0f\u503c\u3002\u6362\u53e5\u8bdd\u8bf4v<sup>T<\/sup>Hv&gt;0\uff0c\u5f0f\u5b50\u4e2d\u7684H\u5982\u679c\u662f\u6b63\u5b9a\u77e9\u9635\uff0c\u4e5f\u5c31\u662f\u8bf4H\u4e2d\u7684\u6240\u6709\u7279\u5f81\u503c\u90fd\u662f\u6b63\u7684\uff0c\u90a3\u4e48\u6211\u4eec\u5c31\u53ef\u4ee5\u8bf4\u8fd9\u91cc\u5c31\u662f\u5c40\u90e8\u6700\u5c0f\u503c\u70b9\u3002<\/p>\n\n\n\n<p>\u82e5v<sup>T<\/sup>Hv&lt;0\uff0c\u4e5f\u5c31\u662f\u8bf4\u5728\u03b8&#8217;\u9644\u8fd1\uff0cL(\u03b8)&lt;L(\u03b8&#8217;)\u6052\u6210\u7acb\uff0c\u4e5f\u5c31\u662f\u8bf4L(\u03b8&#8217;)\u662f\u5c40\u90e8\u6700\u5927\u503c\u3002\u6362\u53e5\u8bdd\u8bf4v<sup>T<\/sup>Hv&lt;0\uff0c\u5f0f\u5b50\u4e2d\u7684H\u5982\u679c\u662f\u8d1f\u5b9a\u77e9\u9635\uff0c\u4e5f\u5c31\u662f\u8bf4H\u4e2d\u7684\u6240\u6709\u7279\u5f81\u503c\u90fd\u662f\u8d1f\u7684\uff0c\u90a3\u4e48\u6211\u4eec\u5c31\u53ef\u4ee5\u8bf4\u8fd9\u91cc\u5c31\u662f\u5c40\u90e8\u6700\u5927\u503c\u70b9\u3002<\/p>\n\n\n\n<p>\u82e5\u6709\u65f6v<sup>T<\/sup>Hv&gt;0\uff0c\u6709\u65f6v<sup>T<\/sup>Hv&lt;0\uff0c\u90a3\u4e48\u6211\u4eec\u5c31\u53ef\u4ee5\u5224\u65ad\u8fd9\u662f\u978d\u70b9\u3002<\/p>\n\n\n\n<p>\u56e0\u6b64\u53ea\u8981\u7b97H\uff0c\u770bH\u4e2d\u7684\u7279\u5f81\u503c\u7684\u6b63\u8d1f\u5c31\u53ef\u4ee5\u5224\u65ad\u5c40\u90e8\u6700\u4f18\u503c\u548c\u978d\u70b9\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/tobykskgd.life\/wp-content\/uploads\/2024\/02\/\u5fae\u4fe1\u56fe\u7247_20240227225940.jpg'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  loading=\"lazy\" decoding=\"async\" width=\"798\" height=\"339\" data-original=\"https:\/\/tobykskgd.life\/wp-content\/uploads\/2024\/02\/\u5fae\u4fe1\u56fe\u7247_20240227225940.jpg\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" class=\"wp-image-179\"  sizes=\"auto, (max-width: 798px) 100vw, 798px\" \/><\/div><\/figure>\n\n\n\n<p>\u5982\u679c\u6211\u4eec\u5728\u8bad\u7ec3\u7684\u65f6\u5019\u9047\u5230loss\u4e0b\u964d\u4e0d\u4e86\uff08g=0\u70b9\uff09\u7684\u539f\u56e0\u662f\u5230\u4e86\u978d\u70b9\uff0c\u90a3\u4e48H\u5c31\u53ef\u80fd\u7ed9\u6211\u4eec\u63d0\u4f9b\u53c2\u6570\u66f4\u65b0\u7684\u65b9\u5411\u3002<\/p>\n\n\n\n<p>\u6211\u4eec\u628a\u03bc\u8bbe\u4e3aH\u7684\u7279\u5f81\u5411\u91cf\uff0c\u628a\u03bb\u8bbe\u4e3a\u03bc\u7684\u7279\u5f81\u503c\uff0c\u90a3\u4e48\u4e4b\u524d\u7684v<sup>T<\/sup>Hv\u53ef\u4ee5\u7b80\u5199\u6210\u03bb||\u03bc||<sup>2<\/sup>\u3002<\/p>\n\n\n\n<p>\u6211\u4eec\u7684\u66f4\u65b0\u65b9\u6cd5\u5c31\u662f\u5148\u627e\u51fa\u8d1f\u7684\u03bb\u5bf9\u5e94\u7684\u03bc\uff0c\u7136\u540e\u65b0\u7684\u66f4\u65b0\u53c2\u6570\u03b8=\u03b8\u2018+\u03bc\u3002<\/p>\n\n\n\n<p>\u7136\u540e\u662f\u4e24\u4e2a\u5c40\u90e8\u6700\u4f18\u503c\u7684\u5904\u7406\uff0c\u8fd9\u91cc\u56e0\u4e3a\u57fa\u672c\u4e0d\u592a\u53ef\u80fd\u51fa\u73b0\u6240\u6709\u7684\u7279\u5f81\u503c\u03bb\u90fd\u4e3a\u6b63\u6216\u90fd\u4e3a\u8d1f\uff0c\u6240\u4ee5\u5c40\u90e8\u6700\u4f18\u503c\u8fd9\u79cd\u60c5\u51b5\u4e00\u822c\u592a\u53ef\u80fd\u51fa\u73b0\uff0c\u6216\u8005\u8bf4\u4e0d\u592a\u53ef\u80fd\u6210\u4e3aloss\u4e0b\u964d\u5361\u4f4f\u7684\u539f\u56e0\u3002\u8fd9\u91cc\u7684\u89e3\u91ca\u5c31\u662f\uff0c\u4e5f\u8bb8\u4ece\u4e8c\u7ef4\u89d2\u5ea6\u770b\u8d77\u6765\uff0c\u6709\u4e00\u4e9b\u70b9\u60f3\u5c40\u90e8\u6700\u4f18\u503c\uff0c\u4f46\u662f\u5347\u9ad8\u7ef4\u5ea6\u4e4b\u540e\u518d\u770b\uff0c\u5927\u6982\u7387\u5c31\u4e0d\u662f\u5c40\u90e8\u6700\u503c\u4e86\uff0c\u4e5f\u5c31\u662f\u5f88\u591a\u65f6\u5019\u5347\u7ef4\u4e4b\u540e\uff0c\u6211\u4eec\u53ef\u4ee5\u53d1\u73b0\u5728\u4f4e\u7ef4\u5ea6\u4e0b\u627e\u4e0d\u5230\u7684\u8def\uff08\u8fd9\u91cc\u674e\u8001\u5e08\u5728\u8bfe\u4e0a\u8bb2\u5230\u5f88\u5f62\u8c61\uff09\u3002\u603b\u7684\u6765\u8bf4\uff0c\u6211\u4eec\u5c31\u4e0d\u9700\u8981\u53bb\u8003\u8651\u5c40\u90e8\u6700\u4f18\u503c\u7684\u89e3\u51b3\u65b9\u6cd5\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/tobykskgd.life\/wp-content\/uploads\/2024\/02\/\u5fae\u4fe1\u56fe\u7247_20240227231146.jpg'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  loading=\"lazy\" decoding=\"async\" width=\"916\" height=\"434\" data-original=\"https:\/\/tobykskgd.life\/wp-content\/uploads\/2024\/02\/\u5fae\u4fe1\u56fe\u7247_20240227231146.jpg\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" class=\"wp-image-180\"  sizes=\"auto, (max-width: 916px) 100vw, 916px\" \/><\/div><\/figure>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity is-style-dots\"\/>\n\n\n\n<p>\u7b2c\u4e8c\u79cd\u5c06\u4e86\u6279\u6b21\u548c\u52a8\u91cf\u7684\u601d\u60f3\u3002<\/p>\n\n\n\n<p>\u5728\u7b2c\u4e00\u8282\u8bfe\u65f6\uff0c\u6211\u4eec\u8bf4\u5728\u8bad\u7ec3\u6a21\u578b\u7684\u65f6\u5019\u6211\u4eec\u9700\u8981\u5c06\u8d44\u6599\u5206\u6210\u591a\u4e2a\u6279\u6b21\uff08batch\uff09\uff0c\u4f46\u662f\u6211\u4eec\u4e3a\u4ec0\u4e48\u8981\u8fd9\u4e48\u505a\u5462\uff1f\u6216\u8005\u8bf4\u8fd9\u6837\u505a\u6709\u4ec0\u4e48\u597d\u5904\uff1f<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/tobykskgd.life\/wp-content\/uploads\/2024\/02\/\u5fae\u4fe1\u56fe\u7247_20240227231531.jpg'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  loading=\"lazy\" decoding=\"async\" width=\"668\" height=\"174\" data-original=\"https:\/\/tobykskgd.life\/wp-content\/uploads\/2024\/02\/\u5fae\u4fe1\u56fe\u7247_20240227231531.jpg\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" class=\"wp-image-181\"  sizes=\"auto, (max-width: 668px) 100vw, 668px\" \/><\/div><\/figure>\n\n\n\n<p>\u524d\u9762\u8bf4\u4e86\uff0cbatch size\u662f\u4e00\u4e2a\u6211\u4eec\u53ef\u4ee5\u81ea\u5b9a\u4e49\u7684\u8d85\u53c2\u6570\u3002\u90a3\u4e48\u4e0b\u9762\u6211\u4eec\u5c31\u6765\u6bd4\u8f83\u4e00\u4e0b\u5927\u7684\u6279\u6b21\u548c\u5c0f\u7684\u6279\u6b21\u6709\u4ec0\u4e48\u533a\u522b\uff0c\u5404\u81ea\u6709\u4ec0\u4e48\u4f18\u52bf\u3002\u4e0b\u9762\u62ff\u4e86\u4e24\u4e2a\u673a\u5668\u5b66\u4e60\u4e2d\u6bd4\u8f83\u5e38\u89c1\u7684\u95ee\u9898\uff1aMNIST\u548cCIFAR-10\u6765\u8bf4\u660e\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/tobykskgd.life\/wp-content\/uploads\/2024\/02\/\u5fae\u4fe1\u56fe\u7247_20240227231815.jpg'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  loading=\"lazy\" decoding=\"async\" width=\"652\" height=\"415\" data-original=\"https:\/\/tobykskgd.life\/wp-content\/uploads\/2024\/02\/\u5fae\u4fe1\u56fe\u7247_20240227231815.jpg\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" class=\"wp-image-183\"  sizes=\"auto, (max-width: 652px) 100vw, 652px\" \/><\/div><\/figure>\n\n\n\n<p>\u4ece\u4e0a\u9762\u7684\u56fe\u4e2d\u5c31\u53ef\u4ee5\u770b\u51fa\uff0c\u968f\u7740batch size\u53d8\u5927\uff0c\u6a21\u578b\u7684\u6b63\u786e\u7387\u5c31\u5f00\u59cb\u968f\u7740\u53d8\u5c0f\u4e86\u3002\u4e5f\u5c31\u662f\u8bf4\u5c0f\u7684batch size\u7684\u6548\u679c\u66f4\u597d\u3002\u800c\u5927\u7684size\u51fa\u4e86\u4ec0\u4e48\u95ee\u9898\u5462\uff1f\u8fd9\u91cc\u9700\u8981\u6ce8\u610f\u7684\u662f\uff0c\u8fd9\u4e2a\u95ee\u9898\u4e0d\u662f\u8fc7\u62df\u5408\uff08overfitting\uff09\uff0c\u800c\u662f\u4f18\u5316\uff08Optimization\uff09\u7684\u5173\u7cfb\u3002\u90a3\u4e48\u8fd9\u4e2a\u4f18\u5316\u7684\u95ee\u9898\u662f\u4ec0\u4e48\u5462\uff1f<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/tobykskgd.life\/wp-content\/uploads\/2024\/02\/\u5fae\u4fe1\u56fe\u7247_20240227231820.jpg'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  loading=\"lazy\" decoding=\"async\" width=\"670\" height=\"556\" data-original=\"https:\/\/tobykskgd.life\/wp-content\/uploads\/2024\/02\/\u5fae\u4fe1\u56fe\u7247_20240227231820.jpg\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" class=\"wp-image-184\"  sizes=\"auto, (max-width: 670px) 100vw, 670px\" \/><\/div><\/figure>\n\n\n\n<p>\u4ece\u4e0a\u9762\u7684\u56fe\u53ef\u4ee5\u770b\u51fa\uff0c\u5982\u679c\u6211\u4eec\u7528\u6574\u4e2a\u8d44\u6599\u53bb\u8bad\u7ec3\uff0c\u90a3\u4e48\u5f88\u53ef\u80fd\u4f1a\u9047\u5230\u5c40\u90e8\u6700\u5c0f\u7684\u70b9\uff08g=0\uff09\uff0c\u5728\u8fd9\u4e2a\u70b9\u4e0a\u5361\u4f4f\uff08\u505c\u6b62\u5b66\u4e60\uff09\u3002\u4f46\u5982\u679c\u6211\u4eec\u628a\u6574\u4e2a\u8d44\u6599\u5206\u6210\u4e00\u4e2a\u4e00\u4e2a\u6279\u6b21\uff0c\u90a3\u4e48\u5982\u679c\u5728\u4e00\u4e2a\u51fd\u6570\u7684\u5730\u65b9\u5361\u4f4f\uff0c\u800c\u53e6\u4e00\u4e2a\u51fd\u6570\u4e0d\u4e00\u5b9a\u4f1a\u5728\u5c40\u90e8\u6700\u5c0f\u503c\u7684\u70b9\u4e0a\uff0c\u4e5f\u5c31\u662f\u8bf4\u5728\u4e00\u4e2a\u51fd\u6570\u5361\u4f4f\u7684\u65f6\u5019\uff0c\u53e6\u4e00\u4e2a\u51fd\u6570\u5e76\u4e0d\u4e00\u5b9a\u4f1a\u5361\u4f4f\u3002\u5c0f\u7684batch\u9664\u4e86\u5728\u8bad\u7ec3\u96c6\u4e0a\u6548\u679c\u597d\uff0c\u5176\u5b9e\u4e5f\u6709\u66f4\u591a\u7684\u4f8b\u5b50\u6765\u8bf4\u660e\u5c0f\u7684batch\u5728\u6d4b\u8bd5\u96c6\u4e0a\u7684\u6548\u679c\u66f4\u597d\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/tobykskgd.life\/wp-content\/uploads\/2024\/02\/\u5fae\u4fe1\u56fe\u7247_20240227232947.jpg'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  loading=\"lazy\" decoding=\"async\" width=\"895\" height=\"486\" data-original=\"https:\/\/tobykskgd.life\/wp-content\/uploads\/2024\/02\/\u5fae\u4fe1\u56fe\u7247_20240227232947.jpg\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" class=\"wp-image-185\"  sizes=\"auto, (max-width: 895px) 100vw, 895px\" \/><\/div><\/figure>\n\n\n\n<p>\u5982\u679c\u6211\u4eec\u540c\u65f6\u8003\u8651\u8bad\u7ec3\u96c6\u548c\u6d4b\u8bd5\u96c6\u7684Loss\u51fd\u6570\uff0c\u90a3\u4e48\u5176\u5b9e\u5c40\u90e8\u6700\u5c0f\u503c\u4e5f\u6709\u597d\u574f\u4e4b\u5206\u3002\u56e0\u4e3a\u8bad\u7ec3\u96c6\u7684loss\u548c\u6d4b\u8bd5\u96c6\u7684loss\u51fd\u6570\u4e0d\u540c\uff0c\u5728\u5de6\u8fb9\u5761\u5ea6\u8f83\u5e73\u7684\u76c6\u5730\u5c40\u90e8\u6700\u5c0f\u503c\uff08minima\uff09\u4e0a\uff0c\u8bad\u7ec3\u96c6\u548c\u6d4b\u8bd5\u96c6\u4e0d\u4f1a\u5dee\u592a\u591a\uff1b\u4f46\u662f\u5bf9\u4e8e\u53f3\u8fb9\u5761\u5ea6\u8f83\u9661\u5ced\u7684\u5ce1\u8c37\u4e0a\u7684\u6700\u5c0f\u503c\uff08minima\uff09\u4e0a\uff0c\u8bad\u7ec3\u96c6\u548c\u6d4b\u8bd5\u96c6\u5dee\u7684\u5f88\u5927\u3002flat minima\u5c31\u662f\u597d\u7684minima\uff0csharp minima\u5c31\u662f\u574f\u7684minima\u3002\u6240\u4ee5\u8bf4\u5c0f\u7684batch size\u66f4\u52a0\u503e\u5411\u4e8e\u5e73\u7684minima\uff08flat minima\uff09\uff0c\u5927\u7684batch size\u66f4\u52a0\u503e\u5411\u4e8e\u9661\u5ced\u7684minima\uff08sharp minima\uff09\u3002<\/p>\n\n\n\n<p>\u6700\u540e\u6211\u4eec\u6765\u603b\u7ed3\u4e00\u4e0b\uff0c\u5927\u7684batch size\u548c\u5c0f\u7684batch size\u7684\u533a\u522b\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/tobykskgd.life\/wp-content\/uploads\/2024\/02\/\u5fae\u4fe1\u56fe\u7247_20240227232950.jpg'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  loading=\"lazy\" decoding=\"async\" width=\"875\" height=\"432\" data-original=\"https:\/\/tobykskgd.life\/wp-content\/uploads\/2024\/02\/\u5fae\u4fe1\u56fe\u7247_20240227232950.jpg\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" class=\"wp-image-186\"  sizes=\"auto, (max-width: 875px) 100vw, 875px\" \/><\/div><\/figure>\n\n\n\n<p>\u4e24\u79cd\u5927\u5c0f\u7684batch size\u5404\u81ea\u6709\u5404\u81ea\u7684\u4f18\u70b9\uff0c\u6bd4\u5982\u8bf4\u5927\u7684batch size\u5728\u6bcf\u4e00\u8f6e\u8ba1\u7b97\u7684\u65f6\u95f4\u4f1a\u6bd4\u8f83\u5feb\uff1b\u5728\u4f18\u5316\u65b9\u9762\uff08\u5bfb\u627e\u6700\u5c0f\u7684Loss\u503c\uff09\uff0c\u5c0f\u7684batch size\u6548\u679c\u5c31\u4f1a\u66f4\u597d\uff1b\u5728\u6cdb\u5316\uff08\u6682\u65f6\u6ca1\u6709\u63d0\u5230\uff09\u4e0a\uff0c\u5c0f\u7684batch size\u6548\u679c\u4e5f\u66f4\u52a0\u597d\u3002batch size\u662f\u4e00\u4e2a\u8d85\u53c2\u6570\uff0c\u6240\u4ee5\u6211\u4eec\u53ef\u4ee5\u6839\u636e\u5b9e\u9645\u9700\u8981\u53bb\u9009\u62e9batch size\u7684\u5927\u5c0f\u3002<\/p>\n\n\n\n<p>\u4e0b\u9762\u6211\u4eec\u6765\u8bf4\u53e6\u4e00\u79cd\u5bf9\u6297\u978d\u70b9\u548c\u5c40\u90e8\u6700\u5c0f\uff08\u68af\u5ea6g=0\uff09\u7684\u65b9\u6cd5\uff1a\u52a8\u91cf\u601d\u60f3\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/tobykskgd.life\/wp-content\/uploads\/2024\/02\/\u5fae\u4fe1\u56fe\u7247_20240227232953.jpg'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  loading=\"lazy\" decoding=\"async\" width=\"902\" height=\"337\" data-original=\"https:\/\/tobykskgd.life\/wp-content\/uploads\/2024\/02\/\u5fae\u4fe1\u56fe\u7247_20240227232953.jpg\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" class=\"wp-image-187\"  sizes=\"auto, (max-width: 902px) 100vw, 902px\" \/><\/div><\/figure>\n\n\n\n<p>\u8fd9\u4e2a\u601d\u60f3\u548c\u7269\u7406\u4e0a\u52a8\u91cf\u6bd4\u8f83\u76f8\u4f3c\uff0c\u4e5f\u5c31\u662f\u8ba9Loss\u50cf\u7269\u7406\u4e2d\u7684\u5c0f\u7403\u4e00\u6837\uff0c\u5230\u4e86\u5c40\u90e8\u6700\u5c0f\u540e\uff0c\u4f9d\u65e7\u5411\u540e\u66f4\u65b0\u53c2\u6570\u3002<\/p>\n\n\n\n<p>\u5148\u6765\u590d\u4e60\u4e00\u4e0b\u6211\u4eec\u524d\u9762\u505a\u7684\u4e00\u822c\u7684\u68af\u5ea6\u4e0b\u964d\u6cd5\u7684\u505a\u6cd5\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/tobykskgd.life\/wp-content\/uploads\/2024\/02\/\u5fae\u4fe1\u56fe\u7247_20240227234330.jpg'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  loading=\"lazy\" decoding=\"async\" width=\"822\" height=\"360\" data-original=\"https:\/\/tobykskgd.life\/wp-content\/uploads\/2024\/02\/\u5fae\u4fe1\u56fe\u7247_20240227234330.jpg\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" class=\"wp-image-189\"  sizes=\"auto, (max-width: 822px) 100vw, 822px\" \/><\/div><\/figure>\n\n\n\n<p>\u4e00\u5f00\u59cb\u6211\u4eec\u8bf4\u68af\u5ea6\u4e0b\u964d\u6cd5\u66f4\u65b0\u53c2\u6570\u7684\u65f6\u5019\u6b65\u9aa4\u662f\u8fd9\u6837\u7684\uff0c\u5148\u662f\u4ece\u03b8<sup>0<\/sup>\u70b9\u5f00\u59cb\u8ba1\u7b97\u68af\u5ea6g<sup>0<\/sup>,\u7136\u540e\u66f4\u65b0\u65b0\u7684\u53c2\u6570\u03b8\u2018=\u03b8<sup>0<\/sup>&#8211;&nbsp;\u03b7g<sup>0<\/sup>\u4e5f\u5c31\u662f\u5f80g\u7684\u53cd\u65b9\u5411\u66f4\u65b0\u53c2\u6570\u03b8\uff0c\u6700\u540e\u8ba1\u7b97\u03b8\u2018\u70b9\u7684\u68af\u5ea6g\u2019\uff0c\u63a5\u7740\u5c31\u662f\u4ee5\u6b64\u7c7b\u63a8\u8ba1\u7b97\u4e0b\u53bb\u3002<\/p>\n\n\n\n<p>\u90a3\u4e48\u52a0\u4e0a\u52a8\u91cf\u7684\u601d\u60f3\u4e4b\u540e\u5c31\u662f\u4e0b\u9762\u8fd9\u6837\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/tobykskgd.life\/wp-content\/uploads\/2024\/02\/\u5fae\u4fe1\u56fe\u7247_20240227234327.jpg'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  loading=\"lazy\" decoding=\"async\" width=\"885\" height=\"501\" data-original=\"https:\/\/tobykskgd.life\/wp-content\/uploads\/2024\/02\/\u5fae\u4fe1\u56fe\u7247_20240227234327.jpg\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" class=\"wp-image-191\"  sizes=\"auto, (max-width: 885px) 100vw, 885px\" \/><\/div><\/figure>\n\n\n\n<p>\u5728\u539f\u6765\u68af\u5ea6\u4e0b\u964d\u6cd5\u7684\u57fa\u7840\u4e0a\u8fdb\u884c\u4e00\u6b65\u6539\u52a8\uff0c\u5c31\u662f\u4e0b\u4e00\u6b65\u7684\u66f4\u65b0\u65b9\u5411\u6211\u4eec\u4e0d\u9009\u62e9\u68af\u5ea6g\u7684\u53cd\u65b9\u5411\uff0c\u800c\u662f\u9009\u62e9\u68af\u5ea6g\u52a0\u4e0a\u4e0a\u4e00\u6b65\u65b9\u5411\u7684\u5411\u91cf\u548c\u7684\u65b9\u6cd5\u53bb\u51b3\u5b9a\u4e0b\u4e00\u6b65\u66f4\u65b0\u53c2\u6570\u7684\u65b9\u5411\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/tobykskgd.life\/wp-content\/uploads\/2024\/02\/\u5fae\u4fe1\u56fe\u7247_20240227234332.jpg'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  loading=\"lazy\" decoding=\"async\" width=\"730\" height=\"396\" data-original=\"https:\/\/tobykskgd.life\/wp-content\/uploads\/2024\/02\/\u5fae\u4fe1\u56fe\u7247_20240227234332.jpg\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" class=\"wp-image-192\"  sizes=\"auto, (max-width: 730px) 100vw, 730px\" \/><\/div><\/figure>\n\n\n\n<p>\u8fd9\u6837\u5b50\u505a\u7684\u597d\u5904\u5c31\u662f\uff0c\u68af\u5ea6g\u4e0d\u518d\u662f\u5f71\u54cd\u53c2\u6570\u03b8\u66f4\u65b0\u7684\u552f\u4e00\u53c2\u6570\u3002\u4e5f\u5c31\u662f\u8bf4\u53ea\u8981\u539f\u6765\u65b9\u5411\u7684\u5f71\u54cd\u591f\u5927\uff0c\u03b8\u4f9d\u65e7\u4f1a\u5411\u53f3\u7ee7\u7eed\u66f4\u65b0\u53c2\u6570\u3002\u8fd9\u6837\u5728\u56fe\u50cf\u4e0a\u5c31\u5f88\u60f3\u7269\u7406\u4e0a\u7684\u52a8\u91cf\uff0c\u4e5f\u5c31\u662f\u60ef\u6027\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity is-style-dots\"\/>\n\n\n\n<p>\u7b2c\u4e09\u79cd\u8bb2\u7684\u662f\u81ea\u52a8\u8c03\u6574\u5b66\u4e60\u7387\u3002<\/p>\n\n\n\n<p>\u5b66\u4e60\u7387\u03b7\u51b3\u5b9a\u4e86\u66f4\u65b0\u7684\u6b65\u4f10\u5927\u5c0f\u3002<\/p>\n\n\n\n<p>\u6709\u65f6\u5019\u8bad\u7ec3\u505c\u6b62\u53ef\u4ee5\u662f\u4e0d\u4e00\u5b9a\u5bfb\u627e\u5230\u4e86\u6700\u5c0f\u7684\u68af\u5ea6\uff0c\u800c\u662f\u56e0\u4e3a\u5b66\u4e60\u7387\u8fc7\u5927\uff0c\u53c2\u6570\u5728\u4e24\u4e2a\u8f83\u5927\u7684loss\u5904\u6765\u56de\u6a2a\u8df3\u800c\u4e00\u76f4\u4e0b\u4e0d\u5230\u6700\u4f4e\u7684loss\u70b9\u5904\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/tobykskgd.life\/wp-content\/uploads\/2024\/02\/\u5fae\u4fe1\u56fe\u7247_20240227235826.jpg'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  loading=\"lazy\" decoding=\"async\" width=\"482\" height=\"334\" data-original=\"https:\/\/tobykskgd.life\/wp-content\/uploads\/2024\/02\/\u5fae\u4fe1\u56fe\u7247_20240227235826.jpg\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" class=\"wp-image-195\"  sizes=\"auto, (max-width: 482px) 100vw, 482px\" \/><\/div><\/figure>\n\n\n\n<p>\u800c\u5982\u679c\u6211\u4eec\u7684\u5b66\u4e60\u7387\u5e73\u5747\u53d8\u5316\uff0c\u5728loss\u53d8\u5316\u7387\u5c0f\u7684\u5730\u65b9\uff0c\u5b66\u4e60\u7387\u4f1a\u6025\u5267\u53d8\u5c0f\uff0c\u6bcf\u6b21\u8d70\u7684\u6b65\u4f10\u4f1a\u6025\u5267\u53d8\u5c0f\uff0c\u53c2\u6570\u7684\u66f4\u65b0\u6b21\u6570\u4f1a\u6025\u5267\u53d8\u5927\uff0c\u8fd9\u6837\u5c31\u7b97\u662f\u5f88\u957f\u7684\u65f6\u95f4\uff0c\u6211\u4eec\u4e5f\u5f88\u96be\u5230\u8fbe\u7ec8\u70b9\u3002\u56e0\u6b64\u6211\u4eec\u9700\u8981\u5bf9\u6bcf\u4e2a\u53c2\u6570\u7684\u5b66\u4e60\u7387\u8fdb\u884c\u5ba2\u5236\u5316\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/tobykskgd.life\/wp-content\/uploads\/2024\/02\/\u5fae\u4fe1\u56fe\u7247_20240227235828.jpg'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  loading=\"lazy\" decoding=\"async\" width=\"778\" height=\"359\" data-original=\"https:\/\/tobykskgd.life\/wp-content\/uploads\/2024\/02\/\u5fae\u4fe1\u56fe\u7247_20240227235828.jpg\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" class=\"wp-image-197\"  sizes=\"auto, (max-width: 778px) 100vw, 778px\" \/><\/div><\/figure>\n\n\n\n<p>\u5bf9\u6bcf\u4e2a\u53c2\u6570\u7684\u5b66\u4e60\u7387\u8fdb\u884c\u5ba2\u5236\u5316\u7684\u8c03\u6574\u65b9\u6cd5\u5982\u4e0b\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/tobykskgd.life\/wp-content\/uploads\/2024\/02\/\u5fae\u4fe1\u56fe\u7247_20240227235831.jpg'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  loading=\"lazy\" decoding=\"async\" width=\"633\" height=\"402\" data-original=\"https:\/\/tobykskgd.life\/wp-content\/uploads\/2024\/02\/\u5fae\u4fe1\u56fe\u7247_20240227235831.jpg\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" class=\"wp-image-198\"  sizes=\"auto, (max-width: 633px) 100vw, 633px\" \/><\/div><\/figure>\n\n\n\n<p>\u539f\u6765\u7684\u68af\u5ea6\u4e0b\u964d\u6cd5\u66f4\u65b0\u53c2\u6570\u7684\u65b9\u6cd5\u662f\u03b8\u2018=\u03b8<sup>0<\/sup>&#8211;&nbsp;\u03b7g<sup>0<\/sup>\uff0c\u5982\u679c\u6211\u4eec\u8981\u5bf9\u6bcf\u4e2a\u53c2\u6570\u8fdb\u884c\u5ba2\u5236\u5316\uff0c\u6211\u4eec\u9700\u8981\u5bf9\u8fd9\u91cc\u7684\u5b66\u4e60\u7387\u8fdb\u884c\u53d8\u5316\u3002\u4e3b\u8981\u5c31\u662f\u5c06\u6240\u6709\u8fc7\u53bb\u7b97\u51fa\u7684\u68af\u5ea6g\u7684\u5747\u65b9\uff08\u56fe\u4e2d\u6709\u8bef\uff09\u5f00\u6839\u4f5c\u4e3a\u03c3\uff0c\u7136\u540e\u7528\u6211\u4eec\u8bbe\u5b9a\u7684\u56fa\u5b9a\u7684\u5b66\u4e60\u7387\u03b7\u53bb\u9664\u4ee5\u03c3\u5f97\u5230\u65b0\u7684\u5b66\u4e60\u7387\u3002\u8fd9\u6837\u505a\u7684\u597d\u5904\u5c31\u662f\uff0c\u6211\u4eec\u53ef\u4ee5\u6839\u636e\u5761\u5ea6\u7684\u9661\u5ced\u7a0b\u5ea6\u53bb\u51b3\u5b9a\u6211\u4eec\u7684\u5b66\u4e60\u7387\u7684\u5927\u5c0f\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/tobykskgd.life\/wp-content\/uploads\/2024\/02\/\u5fae\u4fe1\u56fe\u7247_20240228000742.jpg'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  loading=\"lazy\" decoding=\"async\" width=\"866\" height=\"299\" data-original=\"https:\/\/tobykskgd.life\/wp-content\/uploads\/2024\/02\/\u5fae\u4fe1\u56fe\u7247_20240228000742.jpg\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" class=\"wp-image-199\"  sizes=\"auto, (max-width: 866px) 100vw, 866px\" \/><\/div><\/figure>\n\n\n\n<p>\u5177\u4f53\u8bf4\u6765\u5c31\u662f\u53c2\u6570\u03b8\u7684\u5761\u5ea6\u5c0f\uff0c\u8fd9\u4e2a\u5730\u65b9\u7684\u68af\u5ea6g\u5c31\u5c0f\uff0c\u7b97\u51fa\u6765\u7684\u03c3\u5c31\u5c0f\uff0c\u6574\u4f53\u7684\u5b66\u4e60\u7387\u5c31\u4f1a\u53d8\u5927\uff0c\u6b65\u4f10\u5c31\u4f1a\u53d8\u5927\u3002\u53cd\u4e4b\u4ea6\u7136\u3002<\/p>\n\n\n\n<p>\u5bf9\u4e8e\u540c\u4e00\u4e2a\u53c2\u6570\uff0c\u540c\u4e00\u4e2a\u65b9\u5411\uff0c\u5b66\u4e60\u7387\u4e5f\u9700\u8981\u52a8\u6001\u8c03\u6574\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/tobykskgd.life\/wp-content\/uploads\/2024\/02\/\u5fae\u4fe1\u56fe\u7247_20240228000745.jpg'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  loading=\"lazy\" decoding=\"async\" width=\"885\" height=\"971\" data-original=\"https:\/\/tobykskgd.life\/wp-content\/uploads\/2024\/02\/\u5fae\u4fe1\u56fe\u7247_20240228000745.jpg\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" class=\"wp-image-200\"  sizes=\"auto, (max-width: 885px) 100vw, 885px\" \/><\/div><\/figure>\n\n\n\n<p>\u8fd9\u91cc\u6211\u4eec\u7528\u5230\u7684\u65b9\u6cd5\u5c31\u662fRMSProp\uff0c\u6211\u4eec\u4e0d\u53bb\u4f7f\u7528\u521a\u624d\u03c3\u7684\u8ba1\u7b97\u65b9\u6cd5\uff0c\u800c\u662f\u5982\u4e0a\u56fe\u4e2d\uff0c\u6211\u4eec\u5f15\u5165\u4e86\u4e00\u4e2a\u8d85\u53c2\u6570\u03b1\uff0c\u5b83\u53ef\u4ee5\u52a8\u6001\u8c03\u6574\u5f53\u524d\u53c2\u6570\u7684\u68af\u5ea6\u7684\u91cd\u8981\u6027\uff0c\u4ece\u800c\u66f4\u52a0\u7075\u6d3b\u5730\u53bb\u8c03\u6574\u5b66\u4e60\u7387\u3002\u4e3e\u4f8b\u5c31\u662f\uff0c\u5761\u5ea6\u5e73\u7f13\u65f6\uff08g\u8f83\u5c0f\uff09\uff0c\u6211\u4eec\u51cf\u5c0f\u03b1\uff0c\u53ef\u4ee5\u8ba9\u03c3\u5f88\u5feb\u51cf\u5c0f\uff0c\u8fd9\u6837\u5c31\u53ef\u4ee5\u4f7f\u5b66\u4e60\u7387\u53d8\u5927\uff0c\u6b65\u4f10\u4e5f\u53d8\u5927\uff1b\u53cd\u8fc7\u6765\uff0c\u5761\u5ea6\u5f88\u9661\u65f6\uff08g\u8f83\u5927\uff09\uff0c\u589e\u5927\u03b1\uff0c\u53ef\u4ee5\u8ba9\u03c3\u5f88\u5feb\u53d8\u5927\uff0c\u8fd9\u6837\u5c31\u53ef\u4ee5\u4f7f\u5b66\u4e60\u7387\u53d8\u5c0f\uff0c\u6b65\u4f10\u4e5f\u53d8\u5c0f\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/tobykskgd.life\/wp-content\/uploads\/2024\/02\/\u5fae\u4fe1\u56fe\u7247_20240228001542-1024x853.jpg'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"853\" data-original=\"https:\/\/tobykskgd.life\/wp-content\/uploads\/2024\/02\/\u5fae\u4fe1\u56fe\u7247_20240228001542-1024x853.jpg\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" class=\"wp-image-202\"  sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/div><\/figure>\n\n\n\n<p>\u800c\u8fd9\u6837\uff0c\u5c06\u6bcf\u4e2a\u53c2\u6570\u7684\u5b66\u4e60\u7387\u5ba2\u5236\u5316\u8c03\u6574\u4ee5\u540e\uff0c\u5230\u4e86\u7ec8\u70b9\u5e73\u884c\u5904\uff0c\u5b66\u4e60\u7387\u4f1a\u81ea\u52a8\u8c03\u6574\uff0c\u6b64\u5904\u7684\u5761\u5ea6\u5f88\u5c0f\uff0c\u56e0\u6b64\u68af\u5ea6g\u4f1a\u53d8\u5c0f\uff0c\u6b65\u4f10\u5c31\u4f1a\u53d8\u5927\u3002\u5728y\u8f74\u65b9\u5411\u7d2f\u79ef\u4e86\u5f88\u591a\u5c0f\u7684g\uff0c\u5b66\u4e60\u7387\u5c31\u4f1a\u6025\u5267\u53d8\u5927\uff0c\u4f46\u5230\u4e86y\u8f74\u65b9\u5411\u68af\u5ea6g\u5f88\u5927\u7684\u5730\u65b9\uff0c\u03c3\u4f1a\u53d8\u5927\uff0c\u5b66\u4e60\u7387\u53c8\u4f1a\u4e0b\u964d\uff0c\u6b65\u4f10\u53c8\u4f1a\u6e10\u6e10\u53d8\u5c0f\u3002\u8fd9\u6837\u6700\u540e\u5c31\u4f1a\u5448\u73b0\u51fa\u4e0a\u9762\u90a3\u6837\u6cfc\u58a8\u7684\u611f\u89c9\u3002\u90a3\u6211\u4eec\u4e3a\u4e86\u9632\u6b62\u9760\u8fd1\u7ec8\u70b9\u65f6\uff0c\u5b66\u4e60\u7387\u6025\u5267\u53d8\u5927\u6216\u53d8\u5c0f\uff0c\u6211\u4eec\u6709\u4e24\u79cd\u65b9\u6cd5\u53bb\u5bf9\u6297\u3002\u7b2c\u4e00\u79cd\u662f\u5f00\u59cb\u5148\u8bbe\u4e00\u4e2a\u5f88\u5927\u7684\u5b66\u4e60\u7387\u03b7\uff0c\u968f\u7740\u65f6\u95f4\u51cf\u5c0f\u53bb\u51cf\u5c0f\u5b66\u4e60\u7387\u3002\u7b2c\u4e8c\u79cd\u662f\u4ece0\u5f00\u59cb\u5feb\u901f\u589e\u52a0\u5b66\u4e60\u7387\uff0c\u5230\u4e00\u5b9a\u503c\u540e\u518d\u7f13\u6162\u51cf\u5c0f\u5b66\u4e60\u7387\u03b7\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity is-style-dots\"\/>\n\n\n\n<p>\u7b2c\u56db\u79cd\u662f\u635f\u5931\u51fd\u6570\uff08Loss\uff09\u4e5f\u53ef\u80fd\u6709\u5f71\u54cd\u3002<\/p>\n\n\n\n<p>\u5728\u8fdb\u884c\u5206\u7c7b\u95ee\u9898\u7684\u6a21\u578b\u8bad\u7ec3\u4e0a\uff0c\u53ef\u80fd\u7c7b1\u548c\u7c7b2\u6ca1\u6709\u76f4\u63a5\u7684\u5173\u7cfb\uff0c\u56e0\u6b64\u7528\u6a21\u578b\u7684\u8f93\u51fa\u6570\u503cy\u53bb\u5bf9\u5e94\u4e00\u4e2a\u7c7b\u5e76\u4e0d\u5408\u9002\u3002\u6211\u4eec\u901a\u5e38\u4f1a\u5c06label\u503cyhat\u7528one-hot\u7f16\u7801\u8868\u793a\uff0c\u56e0\u4e3a\u7528\u72ec\u70ed\u7f16\u7801\u8868\u793a\u4e09\u4e2a\u7c7b\uff0c\u5b83\u4eec\u4e24\u4e24\u4e4b\u95f4\u7684\u8ddd\u79bb\u90fd\u4e00\u6837\uff0c\u8fd9\u6837\u7c7b\u4e0e\u7c7b\u4e4b\u95f4\u5c31\u5efa\u7acb\u8d77\u6765\u4e86\u5173\u7cfb\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-full is-resized\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/tobykskgd.life\/wp-content\/uploads\/2024\/02\/\u5fae\u4fe1\u56fe\u7247_20240228002833.jpg'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  loading=\"lazy\" decoding=\"async\" width=\"910\" height=\"524\" data-original=\"https:\/\/tobykskgd.life\/wp-content\/uploads\/2024\/02\/\u5fae\u4fe1\u56fe\u7247_20240228002833.jpg\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" class=\"wp-image-203\" style=\"width:840px;height:auto\"  sizes=\"auto, (max-width: 910px) 100vw, 910px\" \/><\/div><\/figure>\n\n\n\n<p>\u4ece\u56de\u5f52\u95ee\u9898\u5230\u591a\u5206\u7c7b\u95ee\u9898\uff0c\u6211\u4eec\u8fd8\u9700\u8981\u6539\u8fdb\u4e0b\u9762\u51e0\u5904\u5730\u65b9\u3002<\/p>\n\n\n\n<p>\u9996\u5148\u662f\u56de\u5f52\u95ee\u9898\u662f\u591a\u4e2a\u8f93\u5165\u5bf9\u5e94\u4e00\u4e2a\u8f93\u51fa\uff0c\u8fd9\u91cc\u6211\u4eec\u76f4\u63a5\u5c06\u591a\u4e2a\u8f93\u5165\u6539\u6210\u591a\u4e2a\u8f93\u51fa\u5c31\u53ef\u4ee5\uff0c\u7136\u540e\u5e0c\u671b\u8ba9\u6bcf\u4e2a\u8f93\u51fa\u5c3d\u91cf\u9760\u8fd1\u6211\u4eec\u7684label\u7c7b\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/tobykskgd.life\/wp-content\/uploads\/2024\/02\/\u5fae\u4fe1\u56fe\u7247_20240228002836.jpg'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  loading=\"lazy\" decoding=\"async\" width=\"888\" height=\"374\" data-original=\"https:\/\/tobykskgd.life\/wp-content\/uploads\/2024\/02\/\u5fae\u4fe1\u56fe\u7247_20240228002836.jpg\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" class=\"wp-image-204\"  sizes=\"auto, (max-width: 888px) 100vw, 888px\" \/><\/div><\/figure>\n\n\n\n<p>\u7136\u540e\u56e0\u4e3alabel\u4e2d\u7684yhat\u662f\u53ea\u67090\u548c1\u7684one-hot\u7f16\u7801\uff0c\u6240\u4ee5\u6211\u4eec\u8981\u5728\u5206\u7c7b\u95ee\u9898\u4e2d\u591a\u52a0\u4e00\u4e2asoftmax\u51fd\u6570\u3002softmax\u51fd\u6570\u53ef\u4ee5\u5c06\u8f93\u5165\u7684\u4efb\u4f55y\u503c\u53d8\u4e3a0-1\u7684\u503c\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/tobykskgd.life\/wp-content\/uploads\/2024\/02\/\u5fae\u4fe1\u56fe\u7247_20240228002839.jpg'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  loading=\"lazy\" decoding=\"async\" width=\"864\" height=\"219\" data-original=\"https:\/\/tobykskgd.life\/wp-content\/uploads\/2024\/02\/\u5fae\u4fe1\u56fe\u7247_20240228002839.jpg\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" class=\"wp-image-205\"  sizes=\"auto, (max-width: 864px) 100vw, 864px\" \/><\/div><\/figure>\n\n\n\n<p>softmax\u51fd\u6570\u4f1a\u8ba9\u8f93\u5165\u7684\u5404\u4e2a\u503c\u4e4b\u95f4\u7684\u5dee\u8ddd\u53d8\u5927\uff0c\u5e76\u4e14\u4ee4\u8f93\u51fa\u503c\u4e4b\u548c\u4e3a1\u3002\u51fd\u6570\u7684\u5f0f\u5b50\u5982\u4e0b\u56fe\u3002<\/p>\n\n\n\n<p>\u503c\u5f97\u4e00\u63d0\u7684\u662f\uff0c\u5982\u679c\u8f93\u5165\u503c\u4e3a\u4e24\u4e2a\u65f6\uff0c\u4f7f\u7528softmax\u51fd\u6570\u548csigmoid\u51fd\u6570\u7684\u6548\u679c\u662f\u4e00\u6837\u7684\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/tobykskgd.life\/wp-content\/uploads\/2024\/02\/\u5fae\u4fe1\u56fe\u7247_20240228002841.jpg'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  loading=\"lazy\" decoding=\"async\" width=\"844\" height=\"439\" data-original=\"https:\/\/tobykskgd.life\/wp-content\/uploads\/2024\/02\/\u5fae\u4fe1\u56fe\u7247_20240228002841.jpg\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" class=\"wp-image-206\"  sizes=\"auto, (max-width: 844px) 100vw, 844px\" \/><\/div><\/figure>\n\n\n\n<p>\u6700\u540e\u6211\u4eec\u8fd8\u8981\u6539\u53d8\u4e00\u4e0b\u5206\u7c7b\u95ee\u9898\u4e2d\u6c42loss\u7684\u51fd\u6570\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/tobykskgd.life\/wp-content\/uploads\/2024\/02\/\u5fae\u4fe1\u56fe\u7247_20240228002844.jpg'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  loading=\"lazy\" decoding=\"async\" width=\"882\" height=\"294\" data-original=\"https:\/\/tobykskgd.life\/wp-content\/uploads\/2024\/02\/\u5fae\u4fe1\u56fe\u7247_20240228002844.jpg\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" class=\"wp-image-207\"  sizes=\"auto, (max-width: 882px) 100vw, 882px\" \/><\/div><\/figure>\n\n\n\n<p>\u539f\u6765\u7684MSE\u65b9\u6cd5\u5c06\u6a21\u578b\u8f93\u51fa\u4e0e\u6807\u51c6\u503c\u4f5c\u5dee\u5e76\u6c42\u5e73\u65b9\uff0c\u6765\u8868\u793a\u6a21\u578b\u8f93\u51fa\u7684\u6807\u51c6\u5ea6\u3002\u6211\u4eec\u5c06\u5176\u6539\u4e3aCross-entropy\uff0c\u8fd9\u4e2a\u65b9\u6cd5\u66f4\u52a0\u9002\u5408\u7528\u5728\u5206\u7c7b\u95ee\u9898\u4e0a\u9762\u3002<\/p>\n\n\n\n<p>\u4ece\u4e0b\u9762\u4e00\u4e2a\u4f8b\u5b50\u4e2d\u53ef\u4ee5\u770b\u5230\uff0c\u7531\u4e8e\u4e24\u79cd\u65b9\u6cd5\u7684\u5f0f\u5b50\u4e0d\u540c\uff0cMSE\u53ef\u80fd\u5728loss\u5f88\u5927\u7684\u5730\u65b9\u975e\u5e38\u5e73\u5766\uff0cg\u5f88\u5c0f\u4e14\u8d8b\u8fd1\u4e8e0\uff0c\u68af\u5ea6\u4e0b\u964d\u6cd5\u53ef\u80fd\u51fa\u73b0\u505c\u6b62\u8bad\u7ec3\u7684\u95ee\u9898\u3002\u8fd9\u91cc\u4e5f\u53ef\u4ee5\u770b\u51faloss\u51fd\u6570\u7684\u5f0f\u5b50\u4e0d\u540c\u4e5f\u5bf9\u6a21\u578b\u662f\u5426\u597d\u53bb\u8bad\u7ec3\u6709\u5f88\u5927\u7684\u5f71\u54cd\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/tobykskgd.life\/wp-content\/uploads\/2024\/02\/\u5fae\u4fe1\u56fe\u7247_20240228002848.jpg'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  loading=\"lazy\" decoding=\"async\" width=\"906\" height=\"380\" data-original=\"https:\/\/tobykskgd.life\/wp-content\/uploads\/2024\/02\/\u5fae\u4fe1\u56fe\u7247_20240228002848.jpg\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" class=\"wp-image-208\"  sizes=\"auto, (max-width: 906px) 100vw, 906px\" \/><\/div><\/figure>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p>\u4ee5\u4e0a\u5c31\u662f\u5bf9\u7c7b\u795e\u7ecf\u7f51\u7edc\u8bad\u7ec3\u4e0d\u8d77\u6765\u7684\u95ee\u9898\u7684\u89e3\u51b3\u65b9\u6cd5\u7684\u7b14\u8bb0\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u3010\u7c7b\u795e\u7ecf\u7f51\u7edc\u8bad\u7ec3\u4e0d\u8d77\u6765\u600e\u4e48\u529e\u3011\u674e\u5b8f\u6bc52021\/2022\u6625\u673a\u5668\u5b66\u4e60\u8bfe\u7a0b\u7b14\u8bb0EP4\uff08P19-P22\uff09 \u4ece\u4eca\u5929\u5f00\u59cb\u6211 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[6],"tags":[3,7,9,8],"class_list":["post-173","post","type-post","status-publish","format-standard","hentry","category-lhyjqxxbj","tag-xxbj","tag-jjxx","tag-lhy","tag-deeplearning"],"_links":{"self":[{"href":"https:\/\/tobykskgd.life\/index.php\/wp-json\/wp\/v2\/posts\/173","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/tobykskgd.life\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/tobykskgd.life\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/tobykskgd.life\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/tobykskgd.life\/index.php\/wp-json\/wp\/v2\/comments?post=173"}],"version-history":[{"count":11,"href":"https:\/\/tobykskgd.life\/index.php\/wp-json\/wp\/v2\/posts\/173\/revisions"}],"predecessor-version":[{"id":1865,"href":"https:\/\/tobykskgd.life\/index.php\/wp-json\/wp\/v2\/posts\/173\/revisions\/1865"}],"wp:attachment":[{"href":"https:\/\/tobykskgd.life\/index.php\/wp-json\/wp\/v2\/media?parent=173"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/tobykskgd.life\/index.php\/wp-json\/wp\/v2\/categories?post=173"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/tobykskgd.life\/index.php\/wp-json\/wp\/v2\/tags?post=173"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}