{"id":50237,"date":"2022-11-16T17:43:05","date_gmt":"2023-01-30T00:34:38","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/%e7%94%9f%e6%88%90ai%e5%ba%94%e7%94%a8%e7%a8%8b%e5%ba%8f%e7%9a%84%e5%90%91%e9%87%8f%e6%90%9c%e7%b4%a2%ef%bc%9a%e2%91%a2-%e5%af%b9%e5%90%91%e9%87%8f%e6%90%9c%e7%b4%a2%e7%9a%84%e6%a6%82%e5%bf%b5\/"},"modified":"2024-04-29T00:59:58","modified_gmt":"2024-04-28T16:59:58","slug":"%e7%94%9f%e6%88%90ai%e5%ba%94%e7%94%a8%e7%a8%8b%e5%ba%8f%e7%9a%84%e5%90%91%e9%87%8f%e6%90%9c%e7%b4%a2%ef%bc%9a%e2%91%a2-%e5%af%b9%e5%90%91%e9%87%8f%e6%90%9c%e7%b4%a2%e7%9a%84%e6%a6%82%e5%bf%b5","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/%e7%94%9f%e6%88%90ai%e5%ba%94%e7%94%a8%e7%a8%8b%e5%ba%8f%e7%9a%84%e5%90%91%e9%87%8f%e6%90%9c%e7%b4%a2%ef%bc%9a%e2%91%a2-%e5%af%b9%e5%90%91%e9%87%8f%e6%90%9c%e7%b4%a2%e7%9a%84%e6%a6%82%e5%bf%b5\/","title":{"rendered":"\u751f\u6210AI\u5e94\u7528\u7a0b\u5e8f\u7684\u5411\u91cf\u641c\u7d22\uff1a\u2462 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\u5411\u91cf\u641c\u7d22\u7684\u6982\u5ff5\u7406\u89e3<\/h1>\n<h2>\u5411\u91cf\u641c\u7d22\u662f\u4ec0\u4e48\uff1f<\/h2>\n<p>\u5411\u91cf\u641c\u7d22\u662f\u4e00\u79cd\u7528\u4e8e\u641c\u7d22\u5177\u6709\u76f8\u4f3c\u5c5e\u6027\u6216\u7279\u5f81\u7684\u76f8\u5173\u5bf9\u8c61\u7684\u65b9\u6cd5\u3002\u53ef\u4ee5\u5e94\u7528\u5411\u91cf\u641c\u7d22\u7684\u4e00\u822c\u4f8b\u5b50\u5305\u62ec\u6587\u672c\u3001\u56fe\u50cf\u3001\u89c6\u9891\u7b49\u3002<\/p>\n<p>\u5728\u5411\u91cf\u641c\u7d22\u4e2d\uff0c\u4f7f\u7528\u4e00\u79cd\u7279\u5b9a\u7c7b\u578b\u7684\u673a\u5668\u5b66\u4e60\u6a21\u578b\u79f0\u4e3a\u5d4c\u5165\uff0c\u6765\u63cf\u8ff0\u5bf9\u8c61\u53ca\u5176\u4e0a\u4e0b\u6587\u3002\u5d4c\u5165\u6570\u636e\u662f\u6355\u6349\u5bf9\u8c61\u8bed\u4e49\u7684\u5411\u91cf\u3002\u901a\u8fc7\u8fd9\u79cd\u65b9\u6cd5\uff0c\u5728\u5411\u91cf\u641c\u7d22\u4e2d\uff0c\u65e0\u9700\u9884\u5148\u4e86\u89e3\u54ea\u4e9b\u90e8\u5206\u662f\u76f8\u4f3c\u76ee\u6807\uff0c\u5c31\u80fd\u591f\u627e\u5230\u76f8\u4f3c\u7684\u6570\u636e\u3002<\/p>\n<p>\u5982\u679c\u4ee5\u82f1\u8bed\u4e3a\u4f8b\uff0c\u5728\u4f20\u7edf\u7684\u5173\u952e\u8bcd\u641c\u7d22\u4e2d\uff0c\u8bcd\u8bed\u201chappy\u201d\u3001\u201ccheerful\u201d\u548c\u201cjoyful\u201d\u90fd\u5177\u6709\u76f8\u540c\u7684\u610f\u601d\uff0c\u4f46\u4f7f\u7528\u5173\u952e\u8bcd\u201chappy\u201d\u65f6\uff0c\u65e0\u6cd5\u641c\u7d22\u5230\u4e0e\u201ccheerful\u201d\u548c\u201cjoyful\u201d\u5339\u914d\u7684\u6587\u4ef6\u3002\u89e3\u51b3\u8fd9\u4e2a\u95ee\u9898\u7684\u80fd\u529b\u662f\u5411\u91cf\u641c\u7d22\u3002\u5411\u91cf\u641c\u7d22\u53ef\u4ee5\u7406\u89e3\u610f\u4e49\uff0c\u56e0\u6b64\u65e0\u9700\u7528\u6237\u505a\u51fa\u5168\u9762\u6307\u793a\uff0c\u5c31\u53ef\u4ee5\u4f20\u8fbe\u60f3\u8981\u641c\u7d22\u7684\u5bf9\u8c61\u3002<\/p>\n<p>\u4f7f\u7528\u8fd1\u4f3c\u6700\u8fd1\u90bb\uff08ANN\uff09\u641c\u7d22\u7b97\u6cd5\u8fdb\u884c\u5411\u91cf\u641c\u7d22\u53ef\u4ee5\u975e\u5e38\u5feb\u901f\u5730\u6267\u884c\u3002ANN\uff08\u8fd1\u4f3c\u6700\u8fd1\u90bb\uff09\u53ef\u4ee5\u5feb\u901f\u5730\u63a8\u5bfc\u51fa\u5728\u6570\u5b66\u4e0a\u76f8\u4f3c\u7684\u5411\u91cf\u3002<\/p>\n<h2>\u5d4c\u5165\uff08Embedding\uff09\u7684\u57fa\u672c\u6982\u5ff5\u3002<\/h2>\n<p>\u5d4c\u5165\uff08Embedding\uff09\u662f\u5c06\u6587\u672c\u7684\u610f\u4e49\u5c01\u88c5\u4e3a\u6570\u5b66\u8868\u793a\u7684\u8fc7\u7a0b\u3002\u5728\u5c06\u6587\u672c\u8f6c\u5316\u4e3a\u5411\u91cf\u5316\u7684\u5d4c\u5165\u8868\u793a\u65f6\uff0c\u6211\u4eec\u5c06\u6587\u6863\u4e2d\u7684\u5355\u8bcd\u96c6\u5408\u8f6c\u6362\u4e3a\u6570\u5b57\u5217\u8868\u3002\u901a\u8fc7\u5d4c\u5165\uff0c\u5177\u6709\u9ad8\u5ea6\u76f8\u5173\u610f\u4e49\u7684\u5411\u91cf\u5728\u5411\u91cf\u7a7a\u95f4\u4e2d\u5c06\u88ab\u653e\u7f6e\u5728\u9760\u8fd1\u7684\u4f4d\u7f6e\u3002<\/p>\n<p>\u4e8b\u5148\u63d0\u9192\u4e00\u4e0b\uff0c\u5411\u91cf\u7a7a\u95f4\u901a\u5e38\u5177\u6709\u975e\u5e38\u9ad8\u7684\u7ef4\u5ea6\uff08\u5411\u91cf\u7531\u8bb8\u591a\u6570\u5b57\u6784\u6210\uff09\uff0c\u4f46\u5728\u8fd9\u91cc\u8fdb\u884c\u4e86\u7b80\u5316\u3002<\/p>\n<h3>\u5bf9\u4e8e\u5411\u91cf\u4e4b\u95f4\u7684\u76f8\u4f3c\u6027\u7684\u6982\u5ff5\u7406\u89e3<\/h3>\n<p>\u8ba9\u6211\u4eec\u901a\u8fc7\u4e00\u4e2a\u4f8b\u5b50\u6765\u601d\u8003\u3002\u56fe1\u5c55\u793a\u4e86\u4e00\u4e2a\u7b80\u5355\u7684\u5411\u91cf\u7a7a\u95f4\uff0c\u5176\u4e2d\u6709\u4e24\u4e2a\u7ef4\u5ea6\uff0c\u4e00\u4e2a\u662f\u5173\u4e8e&#8221;\u670d\u88c5\u7c7b\u578b&#8221;\u7684\u7ef4\u5ea6\uff0c\u53e6\u4e00\u4e2a\u662f\u5173\u4e8e&#8221;\u670d\u88c5\u989c\u8272&#8221;\u7684\u5c5e\u6027\u7ef4\u5ea6\u3002<\/p>\n<h4>\u9009\u9879:<\/h4>\n<p>1. \u56fe1. \u63cf\u8ff0\u670d\u88c5\u7684\u4e8c\u7ef4\u5411\u91cf\u7a7a\u95f4<\/p>\n<div><img decoding=\"async\" class=\"post-images\" title=\"\" src=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d9037913a08637a6db3cf\/19-0.png\" alt=\"image.png\" \/><\/div>\n<p>\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c\u5411\u91cf\u5177\u6709\u4e8c\u7ef4\u4fe1\u606f\uff0c\u6784\u6210\u5411\u91cf\u6570\u636e\u7684\u6bcf\u4e2a\u5143\u7d20\u4ee3\u8868\u7740\u4ee5\u4e0b\u4e24\u4e2a\u4fe1\u606f\uff1a<\/p>\n<pre class=\"post-pre\"><code><span class=\"p\">[<\/span><span class=\"o\">&lt;<\/span><span class=\"nx\">\u8863\u670d\u306e\u7a2e\u985e<\/span><span class=\"o\">&gt;<\/span><span class=\"p\">,<\/span> <span class=\"o\">&lt;<\/span><span class=\"nx\">\u670d\u306e\u8272<\/span><span class=\"o\">&gt;<\/span><span class=\"p\">]<\/span> \r\n<\/code><\/pre>\n<p>\u5728\u8fd9\u91cc\uff0c\u5047\u8bbe\u201c\u7ea2\u8272\u886c\u886b\u201d\u7684\u5411\u91cf\u4e3a [1, 1]\uff0c\u201c\u84dd\u8272\u88e4\u5b50\u201d\u7684\u5411\u91cf\u4e3a [-1, -1]\u3002\u73b0\u5728\u6211\u4eec\u8981\u52a0\u5165\u4e00\u4e2a\u201c\u7eff\u8272\u88d9\u5b50\u201d\u3002\u88d9\u5b50\u5728\u529f\u80fd\u4e0a\u66f4\u63a5\u8fd1\u4e8e\u88e4\u5b50\uff0c\u5e76\u4e14\u7eff\u8272\u5728\u8272\u8c31\u4e2d\u9760\u8fd1\u84dd\u8272\uff0c\u56e0\u6b64\u53ef\u4ee5\u63a8\u6d4b\u5b83\u7684\u5d4c\u5165\u5411\u91cf\u5e94\u8be5\u4f4d\u4e8e\u9760\u8fd1\u201c\u84dd\u8272\u88e4\u5b50\u201d\u7684\u4f4d\u7f6e\uff0c\u4f8b\u5982 [-0.8, -0.8]\u3002<\/p>\n<p>\u4e0a\u8ff0\u4f8b\u5b50\u5c55\u793a\u4e86\u5229\u7528\u5d4c\u5165\u6765\u6784\u5efa\u5411\u91cf\u7a7a\u95f4\u7684\u65b9\u6cd5\uff0c\u4ee5\u53ca\u5173\u4e8e\u5bf9\u8c61\u5b58\u5728\u7684\u4f4d\u7f6e\u5728\u8be5\u7a7a\u95f4\u4e2d\u7684\u89c2\u5ff5\u3002<\/p>\n<h3>\u5bf9\u4e8e\u5d4c\u5165\u5f0f\u8fd0\u7b97\u7684\u7b97\u672f\u8fd0\u7b97<\/h3>\n<p>\u63a5\u4e0b\u6765\uff0c\u8ba9\u6211\u4eec\u901a\u8fc7\u4e00\u4e2a\u793a\u4f8b\u6765\u4e86\u89e3\u5d4c\u5165\u5411\u91cf\u7684\u7b97\u672f\u8fd0\u7b97\u5982\u4f55\u5de5\u4f5c\u3002\u6211\u4eec\u5728\u8fd9\u91cc\u5904\u7406\u7684\u5411\u91cf\u7a7a\u95f4\u6db5\u76d6\u4e86\u4e24\u4e2a\u6982\u5ff5\uff0c\u5373&#8221;\u4eba\u7269\u7684\u804c\u79f0&#8221;\u548c&#8221;\u6027\u522b&#8221;\u3002\u8bf7\u53c2\u8003\u56fe2\u3002<\/p>\n<h4>\u56fe2. \u793a\u8303\u4e86\u4fdd\u7559\u8bed\u4e49\u4fe1\u606f\u7684\u5411\u91cf\u8fd0\u7b97\u4f8b\u5b50\u3002<\/h4>\n<div><img decoding=\"async\" class=\"post-images\" title=\"\" src=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d9037913a08637a6db3cf\/27-0.png\" alt=\"image.png\" \/><\/div>\n<p>\u5d4c\u5165\uff08\u5d4c\u5165\uff09\u8868\u8fbe\u662f\u5411\u91cf\uff0c\u56e0\u6b64\u53ef\u4ee5\u5bf9\u5411\u91cf\u8fdb\u884c\u7b97\u672f\u8fd0\u7b97\u3002\u5728\u8fdb\u884c\u6b64\u7c7b\u8fd0\u7b97\u65f6\uff0c\u9884\u8ba1\u7ed3\u679c\u5411\u91cf\u4f1a\u4fdd\u7559\u4e0e\u539f\u81ea\u7136\u8bed\u8a00\u7ec4\u5408\u76f8\u5bf9\u5e94\u7684\u610f\u4e49\u6982\u5ff5\u3002<\/p>\n<p>\u4f8b\u5982\uff0c\u5728\u5411\u91cf\u8ba1\u7b97\u4e2d\uff0c\u53ef\u4ee5\u8ba4\u4e3a\u8ba1\u7b97\u5f0f\u300a\u201c\u738b\u5b50\u201d-\u201c\u7537\u6027\u201d+\u201c\u5973\u6027\u201d\u300b\u7684\u7ed3\u679c\u5411\u91cf\u4e0e\u4ee3\u8868\u201c\u516c\u4e3b\u201d\u7684\u5411\u91cf\u975e\u5e38\u76f8\u4f3c\u3002<\/p>\n<p>\u540c\u6837\u5730\uff0c\u7531\u4e8e\u300a\u300c\u738b\u5b50\u300d &#8211; \u300c\u7537\u6027\u300d\u300b\u548c\u300a\u300c\u516c\u4e3b\u300d &#8211; 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