{"id":308,"date":"2010-09-11T12:17:13","date_gmt":"2010-09-11T04:17:13","guid":{"rendered":"http:\/\/www.hawkwithwind.net\/blog\/?p=308"},"modified":"2010-09-12T21:04:06","modified_gmt":"2010-09-12T13:04:06","slug":"%e4%ba%ba%e5%b7%a5%e7%a5%9e%e7%bb%8f%e7%bd%91%e7%bb%9c-ann","status":"publish","type":"post","link":"https:\/\/www.hawkwithwind.net\/blog\/2010\/09\/11\/%e4%ba%ba%e5%b7%a5%e7%a5%9e%e7%bb%8f%e7%bd%91%e7%bb%9c-ann\/","title":{"rendered":"\u4eba\u5de5\u795e\u7ecf\u7f51\u7edc-ANN"},"content":{"rendered":"<blockquote><p>\u6700\u8fd1SC AI\u505a\u5f97\u5dee\u4e0d\u591a\u4e86\uff0c\u5ffd\u7136\u60f3\u5230\u5e94\u8be5\u5199\u4e00\u5199\u5173\u4e8eANN\u548cGA\u7684\u79d1\u666e\u6587\u7ae0\u5462\uff0c\u6bd5\u7adf\u81ea\u5df1\u5b66\u4e60\u53ea\u662f\u4e00\u90e8\u5206\uff0c\u8ddf\u5927\u5bb6\u5206\u4eab\u4e5f\u5f88\u91cd\u8981\u561b\u3002\u81ea\u5df1\u53d9\u8ff0\u4e00\u904d\u7684\u8bdd\uff0c\u4e5f\u80fd\u8003\u5bdf\u81ea\u5df1\u638c\u63e1\u7684\u7a0b\u5ea6\u3002<\/p><\/blockquote>\n<p>ANN, artificial neural network, \u5373\u4eba\u5de5\u795e\u7ecf\u7f51\u7edc\uff0c\u662f\u673a\u5668\u5b66\u4e60\u7684\u4e00\u79cd\u6a21\u578b\u3002\u6211\u5b66\u4e60\u8fd9\u4e2a\u5176\u5b9e\u4e5f\u662f\u8bfb\u6559\u79d1\u4e66\uff0c\u7528\u7684\u662f\u5361\u5185\u57fa\u6885\u9686\u5927\u5b66\u90a3\u672cmachine learning\u3002<\/p>\n<p>\u6240\u4ee5\u5148\u8bf4\u8bf4\u673a\u5668\u5b66\u4e60\u5427\u3002\u673a\u5668\u5b66\u4e60\u7684\u57fa\u672c\u601d\u60f3\u5c31\u662f\u4e0d\u901a\u8fc7\u7f16\u7a0b\u6765\u8ba9\u8ba1\u7b97\u673a\u5b8c\u5168\u9075\u5b88\u4eba\u6307\u5b9a\u7684\u6b7b\u677f\u7684\u6d41\u7a0b\uff0c\u800c\u662f\u901a\u8fc7\u5b9a\u4e49\u4e00\u4e2a\u53ef\u5b66\u4e60\u7684\u6a21\u578b\uff0c\u4e4b\u540e\u5411\u8fd9\u4e2a\u6a21\u578b\u4e0d\u65ad\u6dfb\u52a0&lt;\u95ee\u9898\uff0c\u7b54\u6848&gt;\u8fd9\u6837\u7684\u5bf9\uff08\u6b63\u5f0f\u540d\u79f0\u662f&lt;\u8f93\u5165\u6837\u4f8b\uff0c\u76ee\u6807\u8f93\u51fa&gt;\uff09\uff0c\u6765\u8ba9\u8ba1\u7b97\u673a\u901a\u8fc7\u7ecf\u9a8c\u5224\u65ad\u4e0b\u4e00\u6b21\u63a5\u6536\u5230\u95ee\u9898\u7684\u65f6\u5019\uff0c\u5e94\u8be5\u505a\u51fa\u600e\u6837\u7684\u56de\u7b54\u3002<\/p>\n<p>\u5176\u89e3\u51b3\u65b9\u6848\u5c31\u662f\u6839\u636e\u6bcf\u4e00\u6b21\u7684\u8ba1\u7b97\u673a\u56de\u7b54\u548c\u4eba\u6307\u5b9a\u7684\u6807\u51c6\u7b54\u6848\u8fdb\u884c\u5bf9\u7167\uff0c\u5047\u5982\u76f8\u7b26\uff0c\u5219\u7ed9\u4e88\u9f13\u52b1\uff1b\u5047\u5982\u4e0d\u76f8\u7b26\uff0c\u5219\u7ed9\u4e88\u6279\u8bc4\uff08\u5373\u6b63\u6fc0\u52b1\u548c\u8d1f\u6fc0\u52b1\uff09\u3002\u901a\u8fc7\u4e0d\u65ad\u7684\u8bad\u7ec3\u5f15\u5bfc\u8ba1\u7b97\u673a\u9010\u6e10\u83b7\u5f97\u5bf9\u76f8\u5173\u77e5\u8bc6\u7684\u7406\u89e3\u3002<\/p>\n<p>\u4eba\u5de5\u795e\u7ecf\u7f51\u7edc\u662f\u673a\u5668\u5b66\u4e60\u7684\u4e00\u4e2a\u89e3\u51b3\u65b9\u6848\uff0c\u5373\u91c7\u53d6\u4eff\u751f\u7684\u795e\u7ecf\u5143\u7ed3\u6784\u6765\u5bf9\u8ba1\u7b97\u673a\u8fdb\u884c\u8bad\u7ec3\u3002\u7531\u4e8e\u4eba\u7684\u795e\u7ecf\u5143\u7684\u590d\u6742\u6027\uff0c\u76ee\u524d\u7528\u4e8e\u8ba1\u7b97\u673a\u7814\u7a76\u7684\u795e\u7ecf\u7f51\u7edc\u901a\u5e38\u91c7\u53d6\u7684\u662f\u4e00\u79cd\u7b80\u5316\u6a21\u578b\u3002\u4ed6\u4ee4\u795e\u7ecf\u5143\u6709\u4e00\u4e2a\u8f93\u51fa\u548c\u591a\u4e2a\u8f93\u5165\u3002\u795e\u7ecf\u5143\u901a\u8fc7\u5bf9\u6240\u6709\u7684\u8f93\u5165\u8fdb\u884c\u52a0\u6743\u6c42\u548c\u8ba1\u7b97\u51fa\u7ed3\u679c\uff0c\u5e76\u4ee5\u8fd9\u4e2a\u7ed3\u679c\u4f5c\u4e3a\u8f93\u51fa\uff08\u53ef\u4ee5\u60f3\u8c61\u51fa\u6765\uff0c\u8bad\u7ec3\u4e00\u4e2a\u795e\u7ecf\u7f51\u7edc\uff0c\u5176\u5b9e\u5c31\u662f\u8bad\u7ec3\u4ed6\u4f7f\u5f97\u6bcf\u4e00\u4e2a\u795e\u7ecf\u5143\u90fd\u5f97\u5230\u6b63\u786e\u7684\u6743\u503c\u7ec4\u5408\uff09\u3002\u4e3a\u4e86\u4fdd\u6301\u7b80\u6d01\u6027\uff0c\u6bcf\u4e2a\u795e\u7ecf\u5143\u7684\u8f93\u5165\u548c\u8f93\u51fa\u90fd\u6700\u597d\u4fdd\u6301\u57280\uff5e1\u4e4b\u95f4\u3002\u4e8e\u662f\u8fd9\u91cc\u91c7\u53d6\u4e86\u4e00\u4e2a\u6324\u538b\u51fd\u6570\uff0c\u5c06\u5b9e\u6570\u57df\u6620\u5c04\u52300~1\u4e4b\u95f4\u7684\u4e00\u4e2a\u5c0f\u96c6\u5408\u4e0a\u3002\u901a\u5e38\u91c7\u7528\u7684\u6324\u538b\u51fd\u6570\u662fsigmoid\u51fd\u6570\uff0csigmoid(x)=1\/(1+exp(-x))\u3002\u5f53\u7136\u4e5f\u53ef\u4f7f\u7528\u5176\u4ed6\u6709\u7c7b\u4f3c\u7279\u70b9\u7684\u51fd\u6570\u53d8\u4f53\u5566\u3002\u5b9a\u4e49\u597d\u795e\u7ecf\u5143\u4e4b\u540e\uff0c\u987b\u5c06\u795e\u7ecf\u5143\u6839\u636e\u95ee\u9898\u9700\u8981\u6784\u9020\u6210\u795e\u7ecf\u7f51\u7edc\u3002\u76ee\u524d\u4e1a\u754c\u901a\u7528\u7684\u8f83\u4e3a\u7a33\u5b9a\u7684\u795e\u7ecf\u7f51\u7edc\u662f\u5355\u5411\u65e0\u73af\u7684\u7ed3\u6784\u3002\u5f80\u5f80\u91c7\u53d6\u4e09\u5c42\u3002<\/p>\n<figure id=\"attachment_319\" aria-describedby=\"caption-attachment-319\" style=\"width: 565px\" class=\"wp-caption aligncenter\"><a href=\"http:\/\/www.hawkwithwind.net\/blog\/wp-content\/uploads\/2010\/09\/ANN.png\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-319\" title=\"ANN\" src=\"http:\/\/www.hawkwithwind.net\/blog\/wp-content\/uploads\/2010\/09\/ANN.png\" alt=\"\" width=\"565\" height=\"494\" srcset=\"https:\/\/www.hawkwithwind.net\/blog\/wp-content\/uploads\/2010\/09\/ANN.png 565w, https:\/\/www.hawkwithwind.net\/blog\/wp-content\/uploads\/2010\/09\/ANN-300x262.png 300w\" sizes=\"auto, (max-width: 565px) 100vw, 565px\" \/><\/a><figcaption id=\"caption-attachment-319\" class=\"wp-caption-text\">\u56fe\u7247\u6765\u81ea\u7ef4\u57fa\u767e\u79d1<\/figcaption><\/figure>\n<p>\u7b2c\u4e00\u5c42\u662f\u8f93\u5165\u5c42\uff0c\u6839\u636e\u9700\u8981\uff0c\u8981\u628a\u95ee\u9898\u8f6c\u6362\u4e3a\u4e00\u4e2a\u7f16\u7801\uff0c\u5e76\u4f9d\u6b21\u4f5c\u4e3a\u8f93\u5165\u7ed9\u5404\u4e2a\u8f93\u5165\u66fe\u795e\u7ecf\u5143\u8d4b\u503c\u3002\u4f8b\u5982\uff0c\u7528\u4e8e\u4eba\u8138\u8bc6\u522b\u7684\u795e\u7ecf\u7f51\u7edc\uff0c\u53ef\u91c7\u53d6\u4e00\u4e2a\u4eba\u8138\u7167\u7247\u768432&#215;32\u7684\u7f29\u7565\u56fe\u4f5c\u4e3a\u8f93\u5165\uff0c\u8fd9\u6837\u7684\u8bdd\u5c31\u9700\u89811024\u4e2a\u8f93\u5165\uff0c\u6bcf\u4e2a\u8f93\u5165\u662f0~255\u7684\u50cf\u7d20\u7070\u5ea6\u4fe1\u606f\u3002\u6709\u6bd4\u5982\u8981\u4ece\u4eca\u5929\u7684\u5929\u6c14\u60c5\u51b5\u63a8\u7b97\u660e\u5929\u7684\u5929\u6c14\u60c5\u51b5\uff08\u5f53\u7136\u5b9e\u9645\u662f\u4e0d\u53ef\u884c\u7684\u3002\u3002\uff09\uff0c\u53ef\u5c06\u60f3\u8981\u8003\u8651\u7684\u6240\u6709\u5929\u6c14\u7279\u5f81\u4f9d\u6b21\u4f5c\u4e3a\u8f93\u5165\uff0c\u5e76\u4f20\u8f93\u7ed9\u5404\u4e2a\u795e\u7ecf\u5143\u3002<br \/>\n\u7b2c\u4e8c\u5c42\u662f\u9690\u85cf\u5c42\uff0c\u5b83\u7684\u4f5c\u7528\u662f\u589e\u52a0\u795e\u7ecf\u7f51\u7edc\u7684\u590d\u6742\u5ea6\uff0c\u4ece\u800c\u4f7f\u795e\u7ecf\u7f51\u7edc\u53ef\u4ee5\u8868\u8fbe\u66f4\u590d\u6742\u7684\u51fd\u6570\u903b\u8f91\u3002\u5df2\u7ecf\u8bc1\u660e\uff0c\u4efb\u610f\u51fd\u6570\u53ef\u88ab\u4e09\u5c42\u5355\u9988\u795e\u7ecf\u7f51\u7edc\uff08\u4e00\u4e2a\u8f93\u5165\u5c42\uff0c\u4e24\u4e2a\u9690\u85cf\u5c42\u548c\u4e00\u4e2a\u8f93\u51fa\u5c42\uff09\u4ee5\u4efb\u610f\u7cbe\u5ea6\u903c\u8fd1\u3002\u4f46\u662f\uff0c\u66f4\u590d\u6742\u7684\u51fd\u6570\u5c31\u9700\u8981\u66f4\u591a\u7684\u795e\u7ecf\u5355\u5143\u6765\u8868\u5f81\u3002\u7531\u4e8e\u6211\u4eec\u5728\u5b9e\u73b0\u795e\u7ecf\u7f51\u7edc\u4e4b\u524d\uff0c\u5f80\u5f80\u5e76\u4e0d\u80fd\u786e\u5b9a\u95ee\u9898\u7684\u590d\u6742\u5ea6\uff0c\u6240\u4ee5\u9690\u85cf\u5c42\u91c7\u7528\u7684\u795e\u7ecf\u5143\u6570\u91cf\u5f80\u5f80\u662f\u8981\u9760\u7ecf\u9a8c\u5f97\u51fa\u7684\u3002\u5f53\u7136\u4e5f\u6709\u4e00\u4e9b\u52a8\u6001\u4fee\u6b63\u7684\u65b9\u6cd5\u53ef\u4ee5\u5728\u8bad\u7ec3\u7684\u8fc7\u7a0b\u4e2d\u589e\u52a0\u6216\u51cf\u5c11\u9690\u85cf\u5c42\u7684\u5355\u5143\u6570\u91cf\u3002<br 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\/>\n\u603b\u4e4b\u5047\u5982\u80fd\u591f\u8bad\u7ec3\u4f7f\u5f97\u51fd\u6570\u8fbe\u5230\u6700\u5c0f\u503c\uff0c\u5c31\u8868\u793a\u8bad\u7ec3\u6210\u529f\u4e86\u3002\u56e0\u4e3a\u5b83\u7684\u542b\u4e49\u662f\u5408\u9002\u7684\u6743\u503c\u53d6\u503c\uff0c\u4f7f\u5f97\u6a21\u578b\u7684\u8f93\u51fa\u7ed3\u679co\u548c\u6807\u51c6\u7b54\u6848t\u4e4b\u95f4\u7684\u65b9\u5dee\u6700\u5c0f\u3002\u6ce8\u610f\u7531\u4e8e\u8f93\u51fa\u5355\u5143\u5f80\u5f80\u4e0d\u6b62\u4e00\u4e2a\u6240\u4ee5\u8fd9\u91cco\u548ct\u90fd\u662f\u5411\u91cf\u3002\u65b9\u5dee\u6307\u7684\u662f\u6bcf\u4e00\u4e2a\u5355\u5143\u7684\u8f93\u51fa\u65b9\u5dee\u518d\u6c42\u548c\u3002<\/p>\n<p>\u597d\u5427\u8fd9\u4e9b\u5c31\u662f\u7406\u8bba\u8bb2\u89e3\u5566\u3002\u5f53\u7136\u5b9e\u9645\u5e94\u7528\u7684\u65f6\u5019\u5bf9\u4e8e\u4e0d\u540c\u7684\u95ee\u9898\u4f1a\u6709\u4e0d\u540c\u7684\u53d8\u5f62\u3002\u65e0\u8bba\u662f\u5b66\u4e60\u901f\u7387\uff0c\u6324\u538b\u51fd\u6570\uff0c\u8fd8\u662f\u6743\u503c\u7684\u68af\u5ea6\u4e0b\u964d\u7b97\u6cd5\uff0c\u90fd\u53ef\u4ee5\u6709\u8fd9\u6837\u6216\u90a3\u6837\u7684\u6539\u53d8\u3002\u8fd9\u4e9b\u5c31\u662f\u4e00\u65b9\u9762\u51ed\u7ecf\u9a8c\uff0c\u53e6\u4e00\u65b9\u9762\u4e5f\u9760\u521b\u9020\u6027\u7684\u60f3\u8c61\u529b\u548c\u201c\u5c1d\u8bd5-\u5931\u8d25-\u5c1d\u8bd5\u201d\u7684\u65b9\u6cd5\u6765\u9a8c\u8bc1\u5566\uff5e<\/p>\n<p>\u94fe\u63a5\uff1a<br \/>\n\u7ef4\u57fa\u767e\u79d1-\u4eba\u5de5\u795e\u7ecf\u7f51\u7edc <a href=\"http:\/\/en.wikipedia.org\/wiki\/Artificial_neural_network\">http:\/\/en.wikipedia.org\/wiki\/Artificial_neural_network<\/a><br \/>\n\u7ef4\u57fa\u767e\u79d1-\u53cd\u5411\u4f20\u64ad\u7b97\u6cd5 <a href=\"http:\/\/en.wikipedia.org\/wiki\/Backpropagation\">http:\/\/en.wikipedia.org\/wiki\/Backpropagation<\/a><br \/>\n\u7ef4\u57fa\u767e\u79d1-\u68af\u5ea6\u4e0b\u964d\u7b97\u6cd5 <a href=\"http:\/\/en.wikipedia.org\/wiki\/Gradient_descent\">http:\/\/en.wikipedia.org\/wiki\/Gradient_descent<\/a><br \/>\n\u7ef4\u57fa\u767e\u79d1-\u673a\u5668\u5b66\u4e60      <a href=\"http:\/\/en.wikipedia.org\/wiki\/Machine_learning\">http:\/\/en.wikipedia.org\/wiki\/Machine_learning<\/a><br \/>\n\u56fe\u4e66 \u300a\u673a\u5668\u5b66\u4e60\u300b      <a href=\"http:\/\/www.cs.cmu.edu\/~tom\/mlbook.html\">http:\/\/www.cs.cmu.edu\/~tom\/mlbook.html<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u6700\u8fd1SC AI\u505a\u5f97\u5dee\u4e0d\u591a\u4e86\uff0c\u5ffd\u7136\u60f3\u5230\u5e94\u8be5\u5199\u4e00\u5199\u5173\u4e8eANN\u548cGA\u7684\u79d1\u666e\u6587\u7ae0\u5462\uff0c\u6bd5\u7adf\u81ea\u5df1\u5b66\u4e60\u53ea\u662f\u4e00\u90e8\u5206\uff0c\u8ddf\u5927\u5bb6\u5206\u4eab\u4e5f\u5f88\u91cd\u8981\u561b\u3002\u81ea\u5df1\u53d9\u8ff0\u4e00\u904d\u7684\u8bdd\uff0c\u4e5f\u80fd\u8003\u5bdf\u81ea\u5df1\u638c\u63e1\u7684\u7a0b\u5ea6\u3002 ANN, artificial neural network, \u5373\u4eba\u5de5\u795e\u7ecf\u7f51\u7edc\uff0c\u662f\u673a\u5668\u5b66\u4e60\u7684\u4e00\u79cd\u6a21\u578b\u3002\u6211\u5b66\u4e60\u8fd9\u4e2a\u5176\u5b9e\u4e5f\u662f\u8bfb\u6559\u79d1\u4e66\uff0c\u7528\u7684\u662f\u5361\u5185\u57fa\u6885\u9686\u5927\u5b66\u90a3\u672cmachine learning\u3002 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