{"id":440,"date":"2018-08-28T11:22:18","date_gmt":"2018-08-28T03:22:18","guid":{"rendered":"https:\/\/www.zhuyanbin.com\/?p=440"},"modified":"2019-02-25T00:27:44","modified_gmt":"2019-02-24T16:27:44","slug":"%e7%9b%b8%e4%bc%bc%e6%80%a7%e5%ba%a6%e9%87%8f%e4%b8%ad%e7%94%a8%e5%88%b0%e7%9a%84%e4%b8%80%e4%ba%9b%e8%b7%9d%e7%a6%bb%e5%87%bd%e6%95%b0","status":"publish","type":"post","link":"https:\/\/www.yanbin888.com\/?p=440","title":{"rendered":"\u673a\u5668\u5b66\u4e60\u4e2d\u7684\u51e0\u79cd\u5e38\u7528\u8ddd\u79bb\u5ea6\u91cf\u65b9\u6cd5"},"content":{"rendered":"<h1 class=\"p1\"><span class=\"s1\"><b>1. <\/b><\/span><span class=\"s2\">\u6b27\u6c0f\u8ddd\u79bb<\/span><span class=\"s1\"><b>(Euclidean Distance)<\/b><\/span><\/h1>\n<p class=\"p3\"><span class=\"s1\">\u6b27\u6c0f\u8ddd\u79bb\u662f\u6700\u6613\u4e8e\u7406\u89e3\u7684\u4e00\u79cd\u8ddd\u79bb\u8ba1\u7b97\u65b9\u6cd5\uff0c\u6e90\u81ea\u6b27\u6c0f\u7a7a\u95f4\u4e2d\u4e24\u70b9\u95f4\u7684\u8ddd\u79bb\u516c\u5f0f\u3002<\/span><\/p>\n<p style=\"text-align: center;\"><a href=\"https:\/\/www.zhuyanbin.com\/wp-content\/uploads\/2018\/08\/01.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-445\" src=\"https:\/\/www.zhuyanbin.com\/wp-content\/uploads\/2018\/08\/01.jpg\" alt=\"\" width=\"352\" height=\"301\" srcset=\"https:\/\/www.yanbin888.com\/wp-content\/uploads\/2018\/08\/01.jpg 352w, https:\/\/www.yanbin888.com\/wp-content\/uploads\/2018\/08\/01-300x257.jpg 300w\" sizes=\"auto, (max-width: 352px) 100vw, 352px\" \/><\/a><\/p>\n<ul>\n<li><span class=\"s4\">\u4e8c\u7ef4\u5e73\u9762\u4e0a\u4e24\u70b9<\/span><span class=\"s1\"><b>a(x1,y1)<\/b><\/span><span class=\"s4\">\u4e0e<\/span><span class=\"s1\"><b>b(x2,y2)<\/b><\/span><span class=\"s4\">\u95f4\u7684\u6b27\u6c0f\u8ddd\u79bb\uff1a<\/span><\/li>\n<\/ul>\n<p style=\"text-align: center;\"><a href=\"https:\/\/www.zhuyanbin.com\/wp-content\/uploads\/2018\/08\/01.png\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-446\" src=\"https:\/\/www.zhuyanbin.com\/wp-content\/uploads\/2018\/08\/01.png\" alt=\"\" width=\"222\" height=\"42\" \/><\/a><\/p>\n<ul>\n<li><span class=\"s4\">\u4e09\u7ef4\u7a7a\u95f4\u4e24\u70b9<\/span><span class=\"s1\"><b>a(x1,y1,z1)<\/b><\/span><span class=\"s4\">\u4e0e<\/span><span class=\"s1\"><b>b(x2,y2,z2)<\/b><\/span><span class=\"s4\">\u95f4\u7684\u6b27\u6c0f\u8ddd\u79bb\uff1a<\/span><\/li>\n<\/ul>\n<p style=\"text-align: center;\"><a href=\"https:\/\/www.zhuyanbin.com\/wp-content\/uploads\/2018\/08\/02.png\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-448\" src=\"https:\/\/www.zhuyanbin.com\/wp-content\/uploads\/2018\/08\/02.png\" alt=\"\" width=\"317\" height=\"42\" srcset=\"https:\/\/www.yanbin888.com\/wp-content\/uploads\/2018\/08\/02.png 317w, https:\/\/www.yanbin888.com\/wp-content\/uploads\/2018\/08\/02-300x40.png 300w\" sizes=\"auto, (max-width: 317px) 100vw, 317px\" \/><\/a><\/p>\n<ul>\n<li><span class=\"s4\">\u4e24\u4e2a<\/span><span class=\"s1\"><b>n<\/b><\/span><span class=\"s4\">\u7ef4\u5411\u91cf<\/span><span class=\"s1\"><b>a(x11,x12,\u2026,x1n)<\/b><\/span><span class=\"s4\">\u4e0e<\/span><span class=\"s1\"><b> b(x21,x22,\u2026,x2n)<\/b><\/span><span class=\"s4\">\u95f4\u7684\u6b27\u6c0f\u8ddd\u79bb\uff1a<\/span><\/li>\n<\/ul>\n<p style=\"text-align: center;\"><a href=\"https:\/\/www.zhuyanbin.com\/wp-content\/uploads\/2018\/08\/03.png\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-450\" src=\"https:\/\/www.zhuyanbin.com\/wp-content\/uploads\/2018\/08\/03.png\" alt=\"\" width=\"176\" height=\"83\" \/><\/a><\/p>\n<ul>\n<li><span class=\"s5\"><b>\u4e5f\u53ef\u4ee5\u7528\u8868\u793a\u6210\u5411\u91cf\u8fd0\u7b97\u7684\u5f62\u5f0f\uff1a<\/b><\/span><\/li>\n<\/ul>\n<p style=\"text-align: center;\"><a href=\"https:\/\/www.zhuyanbin.com\/wp-content\/uploads\/2018\/08\/03.png\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-450\" src=\"https:\/\/www.zhuyanbin.com\/wp-content\/uploads\/2018\/08\/03.png\" alt=\"\" width=\"176\" height=\"83\" \/><\/a><\/p>\n<h1 class=\"p1\"><span class=\"s1\"><b>2. <\/b><\/span><span class=\"s2\">\u66fc\u54c8\u987f\u8ddd\u79bb<\/span><span class=\"s1\"><b>(Manhattan Distance)<\/b><\/span><\/h1>\n<p class=\"p3\"><span class=\"s1\">\u4ece\u540d\u5b57\u5c31\u53ef\u4ee5\u731c\u51fa\u8fd9\u79cd\u8ddd\u79bb\u7684\u8ba1\u7b97\u65b9\u6cd5\u4e86\u3002\u60f3\u8c61\u4f60\u5728\u66fc\u54c8\u987f\u8981\u4ece\u4e00\u4e2a\u5341\u5b57\u8def\u53e3\u5f00\u8f66\u5230\u53e6\u5916\u4e00\u4e2a\u5341\u5b57\u8def\u53e3\uff0c\u9a7e\u9a76\u8ddd\u79bb\u662f\u4e24\u70b9\u95f4\u7684\u76f4\u7ebf\u8ddd\u79bb\u5417\uff1f\u663e\u7136\u4e0d\u662f\uff0c\u9664\u975e\u4f60\u80fd\u7a7f\u8d8a\u5927\u697c\u3002\u5b9e\u9645\u9a7e\u9a76\u8ddd\u79bb\u5c31\u662f\u8fd9\u4e2a<\/span><span class=\"s7\">\u201c<\/span><span class=\"s1\">\u66fc\u54c8\u987f\u8ddd\u79bb<\/span><span class=\"s7\">\u201d<\/span><span class=\"s1\">\u3002\u800c\u8fd9\u4e5f\u662f\u66fc\u54c8\u987f\u8ddd\u79bb\u540d\u79f0\u7684\u6765\u6e90\uff0c<\/span> <span class=\"s1\">\u66fc\u54c8\u987f\u8ddd\u79bb\u4e5f\u79f0\u4e3a\u57ce\u5e02\u8857\u533a\u8ddd\u79bb<\/span><span class=\"s7\">(City Block distance)<\/span><span class=\"s1\">\u3002<\/span><\/p>\n<p class=\"p3\"><a href=\"https:\/\/www.zhuyanbin.com\/wp-content\/uploads\/2018\/08\/2.jpg\"><img decoding=\"async\" class=\"size-full wp-image-447 aligncenter\" src=\"https:\/\/www.zhuyanbin.com\/wp-content\/uploads\/2018\/08\/2.jpg\" alt=\"\" width=\"100%\" srcset=\"https:\/\/www.yanbin888.com\/wp-content\/uploads\/2018\/08\/2.jpg 600w, https:\/\/www.yanbin888.com\/wp-content\/uploads\/2018\/08\/2-300x213.jpg 300w\" sizes=\"(max-width: 600px) 100vw, 600px\" \/><\/a><\/p>\n<ul>\n<li><b><\/b><span class=\"s4\">\u4e8c\u7ef4\u5e73\u9762\u4e24\u70b9<\/span><span class=\"s1\"><b>a(x1,y1)<\/b><\/span><span class=\"s4\">\u4e0e<\/span><span class=\"s1\"><b>b(x2,y2)<\/b><\/span><span class=\"s4\">\u95f4\u7684\u66fc\u54c8\u987f\u8ddd\u79bb<\/span><\/li>\n<\/ul>\n<p style=\"text-align: center;\"><a href=\"https:\/\/www.zhuyanbin.com\/wp-content\/uploads\/2018\/08\/21.png\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-458\" src=\"https:\/\/www.zhuyanbin.com\/wp-content\/uploads\/2018\/08\/21.png\" alt=\"\" width=\"183\" height=\"21\" \/><\/a><\/p>\n<ul>\n<li><b><\/b><span class=\"s4\">\u4e24\u4e2a<\/span><span class=\"s1\"><b>n<\/b><\/span><span class=\"s4\">\u7ef4\u5411\u91cf<\/span><span class=\"s1\"><b>a(x11,x12,\u2026,x1n)<\/b><\/span><span class=\"s4\">\u4e0e<\/span><span class=\"s1\"><b> b(x21,x22,\u2026,x2n)<\/b><\/span><span class=\"s4\">\u95f4\u7684\u66fc\u54c8\u987f\u8ddd\u79bb<\/span><\/li>\n<\/ul>\n<p style=\"text-align: center;\"><a href=\"https:\/\/www.zhuyanbin.com\/wp-content\/uploads\/2018\/08\/22.png\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-459\" src=\"https:\/\/www.zhuyanbin.com\/wp-content\/uploads\/2018\/08\/22.png\" alt=\"\" width=\"156\" height=\"62\" \/><\/a><\/p>\n<h1 class=\"p1\"><span class=\"s1\"><b>3. <\/b><\/span><span class=\"s2\">\u5207\u6bd4\u96ea\u592b\u8ddd\u79bb<\/span><span class=\"s8\"><b>\u00a0<\/b><\/span><span class=\"s1\"><b>( Chebyshev Distance )<\/b><\/span><\/h1>\n<p class=\"p10\"><span class=\"s1\">\u56fd\u9645\u8c61\u68cb\u73a9\u8fc7\u4e48\uff1f\u56fd\u738b\u8d70\u4e00\u6b65\u80fd\u591f\u79fb\u52a8\u5230\u76f8\u90bb\u7684<\/span><span class=\"s7\">8<\/span><span class=\"s1\">\u4e2a\u65b9\u683c\u4e2d\u7684\u4efb\u610f\u4e00\u4e2a\u3002\u90a3\u4e48\u56fd\u738b\u4ece\u683c\u5b50<\/span><span class=\"s7\">(x1,y1)<\/span><span class=\"s1\">\u8d70\u5230\u683c\u5b50<\/span><span class=\"s7\">(x2,y2)<\/span><span class=\"s1\">\u6700\u5c11\u9700\u8981\u591a\u5c11\u6b65\uff1f\u8fd9\u4e2a\u8ddd\u79bb\u5c31\u53eb\u5207\u6bd4\u96ea\u592b\u8ddd\u79bb\u3002<\/span><\/p>\n<p><a href=\"https:\/\/www.zhuyanbin.com\/wp-content\/uploads\/2018\/08\/3.jpg\"><img decoding=\"async\" class=\"alignnone size-full wp-image-449\" src=\"https:\/\/www.zhuyanbin.com\/wp-content\/uploads\/2018\/08\/3.jpg\" alt=\"\" width=\"100%\" srcset=\"https:\/\/www.yanbin888.com\/wp-content\/uploads\/2018\/08\/3.jpg 1024w, https:\/\/www.yanbin888.com\/wp-content\/uploads\/2018\/08\/3-300x296.jpg 300w, https:\/\/www.yanbin888.com\/wp-content\/uploads\/2018\/08\/3-768x759.jpg 768w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/a><\/p>\n<ul>\n<li><b><\/b><span class=\"s4\">\u4e8c\u7ef4\u5e73\u9762\u4e24\u70b9<\/span><span class=\"s1\"><b>a(x1,y1)<\/b><\/span><span class=\"s4\">\u4e0e<\/span><span class=\"s1\"><b>b(x2,y2)<\/b><\/span><span class=\"s4\">\u95f4\u7684\u5207\u6bd4\u96ea\u592b\u8ddd\u79bb<\/span><\/li>\n<\/ul>\n<p style=\"text-align: center;\"><a href=\"https:\/\/www.zhuyanbin.com\/wp-content\/uploads\/2018\/08\/31.png\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-460\" src=\"https:\/\/www.zhuyanbin.com\/wp-content\/uploads\/2018\/08\/31.png\" alt=\"\" width=\"212\" height=\"21\" \/><\/a><\/p>\n<ul>\n<li><b><\/b><span class=\"s4\">\u4e24\u4e2a<\/span><span class=\"s1\"><b>n<\/b><\/span><span class=\"s4\">\u7ef4\u5411\u91cf<\/span><span class=\"s1\"><b>a(x11,x12,\u2026,x1n)<\/b><\/span><span class=\"s4\">\u4e0e<\/span><span class=\"s1\"><b> b(x21,x22,\u2026,x2n)<\/b><\/span><span class=\"s4\">\u95f4\u7684\u5207\u6bd4\u96ea\u592b\u8ddd\u79bb<\/span><\/li>\n<\/ul>\n<p style=\"text-align: center;\"><a href=\"https:\/\/www.zhuyanbin.com\/wp-content\/uploads\/2018\/08\/32.png\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-461\" src=\"https:\/\/www.zhuyanbin.com\/wp-content\/uploads\/2018\/08\/32.png\" alt=\"\" width=\"161\" height=\"42\" \/><\/a><\/p>\n<ul>\n<li><b><\/b><span class=\"s5\"><b>\u8fd9\u4e2a\u516c\u5f0f\u7684\u53e6\u4e00\u79cd\u7b49\u4ef7\u5f62\u5f0f\u662f<\/b><\/span><\/li>\n<\/ul>\n<p style=\"text-align: center;\"><a href=\"https:\/\/www.zhuyanbin.com\/wp-content\/uploads\/2018\/08\/33.png\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-462\" src=\"https:\/\/www.zhuyanbin.com\/wp-content\/uploads\/2018\/08\/33.png\" alt=\"\" width=\"217\" height=\"62\" \/><\/a><\/p>\n<h2><\/h2>\n<h1 class=\"p12\"><span class=\"s1\"><b>4.\u00a0<\/b><\/span><span class=\"s9\"><b>\u95f5\u53ef\u592b\u65af\u57fa\u8ddd\u79bb<\/b><\/span><span class=\"s1\"><b>(Minkowski Distance)<\/b><\/span><\/h1>\n<p class=\"p13\"><span class=\"s1\">\u95f5\u6c0f\u8ddd\u79bb\u4e0d\u662f\u4e00\u79cd\u8ddd\u79bb\uff0c\u800c\u662f\u4e00\u7ec4\u8ddd\u79bb\u7684\u5b9a\u4e49\uff0c\u662f\u5bf9\u591a\u4e2a\u8ddd\u79bb\u5ea6\u91cf\u516c\u5f0f\u7684\u6982\u62ec\u6027\u7684\u8868\u8ff0\u3002<\/span><\/p>\n<p class=\"p6\"><span class=\"s5\">\u4e24\u4e2a<\/span><span class=\"s1\">n<\/span><span class=\"s5\">\u7ef4\u53d8\u91cf<\/span><span class=\"s1\">a(x11,x12,\u2026,x1n)<\/span><span class=\"s5\">\u4e0e<\/span><span class=\"s1\"> b(x21,x22,\u2026,x2n)<\/span><span class=\"s5\">\u95f4\u7684\u95f5\u53ef\u592b\u65af\u57fa\u8ddd\u79bb\u5b9a\u4e49\u4e3a\uff1a<\/span><\/p>\n<p style=\"text-align: center;\"><a href=\"https:\/\/www.zhuyanbin.com\/wp-content\/uploads\/2018\/08\/41.png\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-463\" src=\"https:\/\/www.zhuyanbin.com\/wp-content\/uploads\/2018\/08\/41.png\" alt=\"\" width=\"169\" height=\"83\" \/><\/a><\/p>\n<p class=\"p3\"><span class=\"s1\">\u3000\u3000\u5176\u4e2d<\/span><span class=\"s7\">p<\/span><span class=\"s1\">\u662f\u4e00\u4e2a\u53d8\u53c2\u6570\u3002<\/span><\/p>\n<p class=\"p3\"><span class=\"s1\">\u3000\u3000\u5f53<\/span><span class=\"s7\">p=1<\/span><span class=\"s1\">\u65f6\uff0c\u5c31\u662f\u66fc\u54c8\u987f\u8ddd\u79bb<\/span><\/p>\n<p class=\"p3\"><span class=\"s1\">\u3000\u3000\u5f53<\/span><span class=\"s7\">p=2<\/span><span class=\"s1\">\u65f6\uff0c\u5c31\u662f\u6b27\u6c0f\u8ddd\u79bb<\/span><\/p>\n<p class=\"p3\"><span class=\"s1\">\u3000\u3000\u5f53<\/span><span class=\"s7\">p<\/span><span class=\"s10\">\u2192<\/span><span class=\"s7\">\u221e<\/span><span class=\"s1\">\u65f6\uff0c\u5c31\u662f\u5207\u6bd4\u96ea\u592b\u8ddd\u79bb<\/span><\/p>\n<p class=\"p3\"><span class=\"s7\">\u00a0\u00a0\u00a0\u00a0\u00a0 <\/span><span class=\"s1\">\u6839\u636e\u53d8\u53c2\u6570\u7684\u4e0d\u540c\uff0c\u95f5\u6c0f\u8ddd\u79bb\u53ef\u4ee5\u8868\u793a\u4e00\u7c7b\u7684\u8ddd\u79bb\u3002<\/span><\/p>\n<h1 class=\"p1\"><span class=\"s1\"><b>5. <\/b><\/span><span class=\"s11\"><b>\u6807\u51c6\u5316\u6b27\u6c0f\u8ddd\u79bb<\/b><\/span><span class=\"s1\"><b> (Standardized Euclidean Distance)<\/b><\/span><\/h1>\n<p class=\"p3\"><span class=\"s1\">\u6807\u51c6\u5316\u6b27\u6c0f\u8ddd\u79bb\u662f\u9488\u5bf9\u7b80\u5355\u6b27\u6c0f\u8ddd\u79bb\u7684\u7f3a\u70b9\u800c\u4f5c\u7684\u4e00\u79cd\u6539\u8fdb\u65b9\u6848\u3002\u6807\u51c6\u6b27\u6c0f\u8ddd\u79bb\u7684\u601d\u8def\uff1a\u65e2\u7136\u6570\u636e\u5404\u7ef4\u5206\u91cf\u7684\u5206\u5e03\u4e0d\u4e00\u6837\uff0c\u90a3\u5148\u5c06\u5404\u4e2a\u5206\u91cf\u90fd<\/span><span class=\"s7\">\u201c<\/span><span class=\"s1\">\u6807\u51c6\u5316<\/span><span class=\"s7\">\u201d<\/span><span class=\"s1\">\u5230\u5747\u503c\u3001\u65b9\u5dee\u76f8\u7b49\u3002\u5047\u8bbe\u6837\u672c\u96c6<\/span><span class=\"s7\">X<\/span><span class=\"s1\">\u7684\u5747\u503c<\/span><span class=\"s7\">(mean)<\/span><span class=\"s1\">\u4e3a<\/span><span class=\"s7\">m<\/span><span class=\"s1\">\uff0c\u6807\u51c6\u5dee<\/span><span class=\"s7\">(standard deviation)<\/span><span class=\"s1\">\u4e3a<\/span><span class=\"s7\">s<\/span><span class=\"s1\">\uff0c\u90a3\u4e48<\/span><span class=\"s7\">X<\/span><span class=\"s1\">\u7684<\/span><span class=\"s7\">\u201c<\/span><span class=\"s1\">\u6807\u51c6\u5316\u53d8\u91cf<\/span><span class=\"s7\">\u201d<\/span><span class=\"s1\">\u8868\u793a\u4e3a\uff1a<\/span><\/p>\n<p style=\"text-align: center;\"><a href=\"https:\/\/www.zhuyanbin.com\/wp-content\/uploads\/2018\/08\/51.png\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-464\" src=\"https:\/\/www.zhuyanbin.com\/wp-content\/uploads\/2018\/08\/51.png\" alt=\"\" width=\"85\" height=\"42\" \/><\/a><\/p>\n<ul>\n<li><b><\/b><span class=\"s1\"><b>\u6807\u51c6\u5316\u540e\u7684\u503c<\/b><\/span><span class=\"s7\"><b> =\u00a0 ( <\/b><\/span><span class=\"s1\"><b>\u6807\u51c6\u5316\u524d\u7684\u503c<\/b><\/span><span class=\"s7\"><b>\u00a0 <\/b><\/span><span class=\"s1\"><b>\uff0d<\/b><\/span><b> <\/b><span class=\"s1\"><b>\u5206\u91cf\u7684\u5747\u503c<\/b><\/span><span class=\"s7\"><b> ) \/<\/b><\/span><span class=\"s1\"><b>\u5206\u91cf\u7684\u6807\u51c6\u5dee<\/b><\/span><\/li>\n<li><b><\/b><span class=\"s5\"><b>\u7ecf\u8fc7\u7b80\u5355\u7684\u63a8\u5bfc\u5c31\u53ef\u4ee5\u5f97\u5230\u4e24\u4e2a<\/b><\/span><span class=\"s1\"><b>n<\/b><\/span><span class=\"s5\"><b>\u7ef4\u5411\u91cf<\/b><\/span><span class=\"s1\"><b>a(x11,x12,\u2026,x1n)<\/b><\/span><span class=\"s5\"><b>\u4e0e<\/b><\/span><span class=\"s1\"><b> b(x21,x22,\u2026,x2n)<\/b><\/span><span class=\"s5\"><b>\u95f4\u7684\u6807\u51c6\u5316\u6b27\u6c0f\u8ddd\u79bb\u7684\u516c\u5f0f\uff1a<\/b><\/span><\/li>\n<\/ul>\n<p style=\"text-align: center;\"><a href=\"https:\/\/www.zhuyanbin.com\/wp-content\/uploads\/2018\/08\/52.png\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-465\" src=\"https:\/\/www.zhuyanbin.com\/wp-content\/uploads\/2018\/08\/52.png\" alt=\"\" width=\"171\" height=\"83\" \/><\/a><\/p>\n<ul>\n<li><b><\/b><span class=\"s1\"><b>\u5982\u679c\u5c06\u65b9\u5dee\u7684\u5012\u6570\u770b\u6210\u662f\u4e00\u4e2a\u6743\u91cd\uff0c\u8fd9\u4e2a\u516c\u5f0f\u53ef\u4ee5\u770b\u6210\u662f\u4e00\u79cd\u52a0\u6743\u6b27\u6c0f\u8ddd\u79bb<\/b><\/span><span class=\"s7\"><b>(Weighted Euclidean distance)<\/b><\/span><span class=\"s1\"><b>\u3002<\/b><\/span><\/li>\n<\/ul>\n<h1 class=\"p1\"><span class=\"s1\"><b>6. <\/b><\/span><span class=\"s11\"><b>\u9a6c\u6c0f\u8ddd\u79bb<\/b><\/span><span class=\"s1\"><b>(Mahalanobis Distance)<\/b><\/span><\/h1>\n<p class=\"p3\"><span class=\"s1\">\u9a6c\u6c0f\u8ddd\u79bb\u7684\u5f15\u51fa\uff1a<\/span><\/p>\n<p style=\"text-align: center;\"><a href=\"https:\/\/www.zhuyanbin.com\/wp-content\/uploads\/2018\/08\/61.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-466\" src=\"https:\/\/www.zhuyanbin.com\/wp-content\/uploads\/2018\/08\/61.jpg\" alt=\"\" width=\"190\" height=\"84\" \/><\/a><\/p>\n<p class=\"p3\"><span class=\"s1\">\u4e0a\u56fe\u6709\u4e24\u4e2a\u6b63\u6001\u5206\u5e03\u7684\u603b\u4f53\uff0c\u5b83\u4eec\u7684\u5747\u503c\u5206\u522b\u4e3a<\/span><span class=\"s7\">a<\/span><span class=\"s1\">\u548c<\/span><span class=\"s7\">b<\/span><span class=\"s1\">\uff0c\u4f46\u65b9\u5dee\u4e0d\u4e00\u6837\uff0c\u5219\u56fe\u4e2d\u7684<\/span><span class=\"s7\">A<\/span><span class=\"s1\">\u70b9\u79bb\u54ea\u4e2a\u603b\u4f53\u66f4\u8fd1\uff1f\u6216\u8005\u8bf4<\/span><span class=\"s7\">A<\/span><span class=\"s1\">\u6709\u66f4\u5927\u7684\u6982\u7387\u5c5e\u4e8e\u8c01\uff1f\u663e\u7136\uff0c<\/span><span class=\"s7\">A<\/span><span class=\"s1\">\u79bb\u5de6\u8fb9\u7684\u66f4\u8fd1\uff0c<\/span><span class=\"s7\">A<\/span><span class=\"s1\">\u5c5e\u4e8e\u5de6\u8fb9\u603b\u4f53\u7684\u6982\u7387\u66f4\u5927\uff0c\u5c3d\u7ba1<\/span><span class=\"s7\">A<\/span><span class=\"s1\">\u4e0e<\/span><span class=\"s7\">a<\/span><span class=\"s1\">\u7684\u6b27\u5f0f\u8ddd\u79bb\u8fdc\u4e00\u4e9b\u3002\u8fd9\u5c31\u662f\u9a6c\u6c0f\u8ddd\u79bb\u7684\u76f4\u89c2\u89e3\u91ca\u3002<\/span><\/p>\n<ul>\n<li><b><\/b><span class=\"s5\"><b>\u6982\u5ff5<\/b><\/span><\/li>\n<\/ul>\n<p class=\"p3\"><span class=\"s1\">\u9a6c\u6c0f\u8ddd\u79bb\u662f\u57fa\u4e8e\u6837\u672c\u5206\u5e03\u7684\u4e00\u79cd\u8ddd\u79bb\u3002\u7269\u7406\u610f\u4e49\u5c31\u662f\u5728\u89c4\u8303\u5316\u7684\u4e3b\u6210\u5206\u7a7a\u95f4\u4e2d\u7684\u6b27\u6c0f\u8ddd\u79bb\u3002\u6240\u8c13\u89c4\u8303\u5316\u7684\u4e3b\u6210\u5206\u7a7a\u95f4\u5c31\u662f\u5229\u7528\u4e3b\u6210\u5206\u5206\u6790\u5bf9\u4e00\u4e9b\u6570\u636e\u8fdb\u884c\u4e3b\u6210\u5206\u5206\u89e3\u3002\u518d\u5bf9\u6240\u6709\u4e3b\u6210\u5206\u5206\u89e3\u8f74\u505a\u5f52\u4e00\u5316\uff0c\u5f62\u6210\u65b0\u7684\u5750\u6807\u8f74\u3002\u7531\u8fd9\u4e9b\u5750\u6807\u8f74\u5f20\u6210\u7684\u7a7a\u95f4\u5c31\u662f\u89c4\u8303\u5316\u7684\u4e3b\u6210\u5206\u7a7a\u95f4\u3002<\/span><\/p>\n<p style=\"text-align: center;\"><a href=\"https:\/\/www.zhuyanbin.com\/wp-content\/uploads\/2018\/08\/62.gif\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-468\" src=\"https:\/\/www.zhuyanbin.com\/wp-content\/uploads\/2018\/08\/62.gif\" alt=\"\" width=\"450\" height=\"441\" \/><\/a><\/p>\n<ul>\n<li><b><\/b><span class=\"s1\"><b>\u6709<\/b><\/span><span class=\"s7\"><b>M<\/b><\/span><span class=\"s1\"><b>\u4e2a\u6837\u672c\u5411\u91cf<\/b><\/span><span class=\"s7\"><b>X1~Xm<\/b><\/span><span class=\"s1\"><b>\uff0c\u534f\u65b9\u5dee\u77e9\u9635\u8bb0\u4e3a<\/b><\/span><span class=\"s7\"><b>S<\/b><\/span><span class=\"s1\"><b>\uff0c\u5747\u503c\u8bb0\u4e3a\u5411\u91cf<\/b><\/span><span class=\"s7\"><b>\u03bc<\/b><\/span><span class=\"s1\"><b>\uff0c\u5219\u5176\u4e2d\u6837\u672c\u5411\u91cf<\/b><\/span><span class=\"s7\"><b>X<\/b><\/span><span class=\"s1\"><b>\u5230<\/b><\/span><span class=\"s7\"><b>u<\/b><\/span><span class=\"s1\"><b>\u7684\u9a6c\u6c0f\u8ddd\u79bb\u8868\u793a\u4e3a\uff1a<\/b><\/span><\/li>\n<\/ul>\n<p style=\"text-align: center;\"><a href=\"https:\/\/www.zhuyanbin.com\/wp-content\/uploads\/2018\/08\/61.png\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-467\" src=\"https:\/\/www.zhuyanbin.com\/wp-content\/uploads\/2018\/08\/61.png\" alt=\"\" width=\"207\" height=\"42\" \/><\/a><\/p>\n<ul>\n<li><b><\/b><span class=\"s1\"><b>\u800c\u5176\u4e2d\u5411\u91cf<\/b><\/span><span class=\"s7\"><b>Xi<\/b><\/span><span class=\"s1\"><b>\u4e0e<\/b><\/span><span class=\"s7\"><b>Xj<\/b><\/span><span class=\"s1\"><b>\u4e4b\u95f4\u7684\u9a6c\u6c0f\u8ddd\u79bb\u5b9a\u4e49\u4e3a\uff1a<\/b><\/span><\/li>\n<\/ul>\n<p style=\"text-align: center;\"><a href=\"https:\/\/www.zhuyanbin.com\/wp-content\/uploads\/2018\/08\/62.png\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-469\" src=\"https:\/\/www.zhuyanbin.com\/wp-content\/uploads\/2018\/08\/62.png\" alt=\"\" width=\"252\" height=\"42\" \/><\/a><\/p>\n<ul>\n<li><b><\/b><span class=\"s5\"><b>\u82e5\u534f\u65b9\u5dee\u77e9\u9635\u662f\u5355\u4f4d\u77e9\u9635\uff08\u5404\u4e2a\u6837\u672c\u5411\u91cf\u4e4b\u95f4\u72ec\u7acb\u540c\u5206\u5e03\uff09<\/b><\/span><span class=\"s7\"><b>,<\/b><\/span><span class=\"s5\"><b>\u5219\u516c\u5f0f\u5c31\u6210\u4e86\uff1a<\/b><\/span><\/li>\n<\/ul>\n<p style=\"text-align: center;\"><a href=\"https:\/\/www.zhuyanbin.com\/wp-content\/uploads\/2018\/08\/63.png\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-470\" src=\"https:\/\/www.zhuyanbin.com\/wp-content\/uploads\/2018\/08\/63.png\" alt=\"\" width=\"224\" height=\"42\" \/><\/a><\/p>\n<p class=\"p3\" style=\"padding-left: 30px;\"><span class=\"s1\">\u4e5f\u5c31\u662f\u6b27\u6c0f\u8ddd\u79bb\u4e86\u3002\u82e5\u534f\u65b9\u5dee\u77e9\u9635\u662f\u5bf9\u89d2\u77e9\u9635\uff0c\u516c\u5f0f\u53d8\u6210\u4e86\u6807\u51c6\u5316\u6b27\u6c0f\u8ddd\u79bb\u3002<\/span><\/p>\n<h1 class=\"p1\"><span class=\"s1\"><b>7. <\/b><\/span><span class=\"s11\"><b>\u4f59\u5f26\u8ddd\u79bb<\/b><\/span><span class=\"s1\"><b>(Cosine Distance)<\/b><\/span><\/h1>\n<p class=\"p3\"><span class=\"s1\">\u51e0\u4f55\u4e2d\uff0c\u5939\u89d2\u4f59\u5f26\u53ef\u7528\u6765\u8861\u91cf\u4e24\u4e2a\u5411\u91cf\u65b9\u5411\u7684\u5dee\u5f02\uff1b<\/span><\/p>\n<p class=\"p3\"><span class=\"s1\">\u673a\u5668\u5b66\u4e60\u4e2d\uff0c\u501f\u7528\u8fd9\u4e00\u6982\u5ff5\u6765\u8861\u91cf\u6837\u672c\u5411\u91cf\u4e4b\u95f4\u7684\u5dee\u5f02\u3002<\/span><\/p>\n<ul>\n<li><b><\/b><span class=\"s1\"><b>\u4e8c\u7ef4\u7a7a\u95f4\u4e2d\u5411\u91cf<\/b><\/span><span class=\"s7\"><b>A(x1,y1)<\/b><\/span><span class=\"s1\"><b>\u4e0e\u5411\u91cf<\/b><\/span><span class=\"s7\"><b>B(x2,y2)<\/b><\/span><span class=\"s1\"><b>\u7684\u5939\u89d2\u4f59\u5f26\u516c\u5f0f\uff1a<\/b><\/span><\/li>\n<\/ul>\n<p style=\"text-align: center;\"><a href=\"https:\/\/www.zhuyanbin.com\/wp-content\/uploads\/2018\/08\/71.png\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-471\" src=\"https:\/\/www.zhuyanbin.com\/wp-content\/uploads\/2018\/08\/71.png\" alt=\"\" width=\"212\" height=\"62\" \/><\/a><\/p>\n<ul>\n<li><b><\/b><span class=\"s5\"><b>\u4e24\u4e2a<\/b><\/span><span class=\"s1\"><b>n<\/b><\/span><span class=\"s5\"><b>\u7ef4\u6837\u672c\u70b9<\/b><\/span><span class=\"s1\"><b>a(x11,x12,\u2026,x1n)<\/b><\/span><span class=\"s5\"><b>\u548c<\/b><\/span><span class=\"s1\"><b>b(x21,x22,\u2026,x2n)<\/b><\/span><span class=\"s5\"><b>\u7684\u5939\u89d2\u4f59\u5f26\u4e3a\uff1a<\/b><\/span><\/li>\n<\/ul>\n<p style=\"text-align: center;\"><a href=\"https:\/\/www.zhuyanbin.com\/wp-content\/uploads\/2018\/08\/72.png\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-472\" src=\"https:\/\/www.zhuyanbin.com\/wp-content\/uploads\/2018\/08\/72.png\" alt=\"\" width=\"112\" height=\"42\" \/><\/a><\/p>\n<p class=\"p3\" style=\"padding-left: 30px;\"><span class=\"s1\">\u5373\uff1a<\/span><\/p>\n<p style=\"text-align: center;\"><a href=\"https:\/\/www.zhuyanbin.com\/wp-content\/uploads\/2018\/08\/73.png\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-473\" src=\"https:\/\/www.zhuyanbin.com\/wp-content\/uploads\/2018\/08\/73.png\" alt=\"\" width=\"231\" height=\"62\" \/><\/a><\/p>\n<p class=\"p3\" style=\"padding-left: 30px;\"><span class=\"s1\">\u5939\u89d2\u4f59\u5f26\u53d6\u503c\u8303\u56f4\u4e3a<\/span><span class=\"s7\">[-1,1]<\/span><span class=\"s1\">\u3002\u4f59\u5f26\u8d8a\u5927\u8868\u793a\u4e24\u4e2a\u5411\u91cf\u7684\u5939\u89d2\u8d8a\u5c0f\uff0c\u4f59\u5f26\u8d8a\u5c0f\u8868\u793a\u4e24\u5411\u91cf\u7684\u5939\u89d2\u8d8a\u5927\u3002\u5f53\u4e24\u4e2a\u5411\u91cf\u7684\u65b9\u5411\u91cd\u5408\u65f6\u4f59\u5f26\u53d6\u6700\u5927\u503c<\/span><span class=\"s7\">1<\/span><span class=\"s1\">\uff0c\u5f53\u4e24\u4e2a\u5411\u91cf\u7684\u65b9\u5411\u5b8c\u5168\u76f8\u53cd\u4f59\u5f26\u53d6\u6700\u5c0f\u503c<\/span><span class=\"s7\">-1<\/span><span class=\"s1\">\u3002<\/span><\/p>\n<h1 class=\"p1\"><span class=\"s1\"><b>8. <\/b><\/span><span class=\"s11\"><b>\u6c49\u660e\u8ddd\u79bb<\/b><\/span><span class=\"s1\"><b>(Hamming Distance)<\/b><\/span><\/h1>\n<p style=\"text-align: center;\"><a href=\"https:\/\/www.zhuyanbin.com\/wp-content\/uploads\/2018\/08\/8.png\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-452\" src=\"https:\/\/www.zhuyanbin.com\/wp-content\/uploads\/2018\/08\/8.png\" alt=\"\" width=\"370\" height=\"225\" srcset=\"https:\/\/www.yanbin888.com\/wp-content\/uploads\/2018\/08\/8.png 370w, https:\/\/www.yanbin888.com\/wp-content\/uploads\/2018\/08\/8-300x182.png 300w\" sizes=\"auto, (max-width: 370px) 100vw, 370px\" \/><\/a><\/p>\n<ul>\n<li><b><\/b><span class=\"s5\"><b>\u5b9a\u4e49<\/b><\/span><\/li>\n<\/ul>\n<p class=\"p3\" style=\"padding-left: 30px;\"><span class=\"s1\">\u4e24\u4e2a\u7b49\u957f\u5b57\u7b26\u4e32<\/span><span class=\"s7\">s1<\/span><span class=\"s1\">\u4e0e<\/span><span class=\"s7\">s2<\/span><span class=\"s1\">\u7684\u6c49\u660e\u8ddd\u79bb\u4e3a\uff1a\u5c06\u5176\u4e2d\u4e00\u4e2a\u53d8\u4e3a\u53e6\u5916\u4e00\u4e2a\u6240\u9700\u8981\u4f5c\u7684\u6700\u5c0f\u5b57\u7b26\u66ff\u6362\u6b21\u6570\u3002<\/span><\/p>\n<p class=\"p6\" style=\"padding-left: 30px;\"><span class=\"s5\">\u4f8b\u5982<\/span><span class=\"s1\">:\u00a0<\/span><\/p>\n<p class=\"p16\" style=\"padding-left: 60px;\"><span class=\"s1\"><span class=\"Apple-converted-space\">\u00a0 \u00a0 \u00a0 <\/span><span style=\"color: #993300;\">The Hamming distance between <\/span><\/span><span style=\"color: #993300;\"><span class=\"s12\">&#8220;1011101&#8221;<\/span> <span class=\"s13\">and<\/span> <span class=\"s12\">&#8220;1001001&#8221;<\/span> <span class=\"s13\">is<\/span> <span class=\"s14\">2.<span class=\"Apple-converted-space\">\u00a0 \u00a0 \u00a0 \u00a0 <\/span><\/span><span class=\"s1\"><span class=\"Apple-converted-space\">\u00a0 \u00a0 \u00a0 \u00a0<\/span><\/span><\/span><\/p>\n<p class=\"p16\" style=\"padding-left: 60px;\"><span style=\"color: #993300;\"><span class=\"s1\"><span class=\"Apple-converted-space\">\u00a0 \u00a0 \u00a0 <\/span>The Hamming distance between <\/span><span class=\"s12\">&#8220;2143896&#8221;<\/span> <span class=\"s13\">and<\/span> <span class=\"s12\">&#8220;2233796&#8221;<\/span> <span class=\"s13\">is<\/span> <span class=\"s14\">3.<span class=\"Apple-converted-space\">\u00a0 \u00a0 \u00a0 \u00a0 <\/span><\/span><span class=\"s1\"><span class=\"Apple-converted-space\">\u00a0 \u00a0 \u00a0 \u00a0<\/span><\/span><\/span><\/p>\n<p class=\"p16\" style=\"padding-left: 60px;\"><span style=\"color: #993300;\"><span class=\"s1\"><span class=\"Apple-converted-space\">\u00a0 \u00a0 \u00a0 <\/span>The Hamming distance between <\/span><span class=\"s12\">&#8220;toned&#8221;<\/span> <span class=\"s13\">and<\/span> <span class=\"s12\">&#8220;roses&#8221;<\/span> <span class=\"s13\">is<\/span> <\/span><span class=\"s14\"><span style=\"color: #993300;\">3.<\/span><span class=\"Apple-converted-space\"><span style=\"color: #800000;\"><span style=\"color: #993300;\">\u00a0 <\/span>\u00a0 \u00a0 \u00a0 \u00a0 \u00a0<\/span> \u00a0 \u00a0 \u00a0 <\/span><\/span><span class=\"s1\"><span class=\"Apple-converted-space\">\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0<\/span><\/span><\/p>\n<ul>\n<li><b><\/b><span class=\"s5\"><b>\u6c49\u660e\u91cd\u91cf<\/b><\/span><\/li>\n<\/ul>\n<p class=\"p3\" style=\"padding-left: 30px;\"><span class=\"s1\">\u5b57\u7b26\u4e32\u76f8\u5bf9\u4e8e\u540c\u6837\u957f\u5ea6\u7684\u96f6\u5b57\u7b26\u4e32\u7684\u6c49\u660e\u8ddd\u79bb\uff0c\u4e5f\u5c31\u662f\u8bf4\uff0c\u5b83\u662f\u5b57\u7b26\u4e32\u4e2d\u975e\u96f6\u7684\u5143\u7d20\u4e2a\u6570\uff1a\u5bf9\u4e8e\u4e8c\u8fdb\u5236\u5b57\u7b26\u4e32\u6765\u8bf4\uff0c\u5c31\u662f<\/span><span class=\"s7\"> 1 <\/span><span class=\"s1\">\u7684\u4e2a\u6570\uff0c\u6240\u4ee5<\/span><span class=\"s7\"> 11101 <\/span><span class=\"s1\">\u7684\u6c49\u660e\u91cd\u91cf\u662f<\/span><span class=\"s7\"> 4<\/span><span class=\"s1\">\u3002\u56e0\u6b64\uff0c\u5982\u679c\u5411\u91cf\u7a7a\u95f4\u4e2d\u7684\u5143\u7d20<\/span><span class=\"s7\">a<\/span><span class=\"s1\">\u548c<\/span><span class=\"s7\">b<\/span><span class=\"s1\">\u4e4b\u95f4\u7684\u6c49\u660e\u8ddd\u79bb\u7b49\u4e8e\u5b83\u4eec\u6c49\u660e\u91cd\u91cf\u7684\u5dee<\/span><span class=\"s7\">a-b<\/span><span class=\"s1\">\u3002<\/span><\/p>\n<ul>\n<li><b><\/b><span class=\"s5\"><b>\u5e94\u7528<\/b><\/span><\/li>\n<\/ul>\n<p class=\"p3\" style=\"padding-left: 30px;\"><span class=\"s1\">\u6c49\u660e\u91cd\u91cf\u5206\u6790\u5728\u5305\u62ec\u4fe1\u606f\u8bba\u3001\u7f16\u7801\u7406\u8bba\u3001\u5bc6\u7801\u5b66\u7b49\u9886\u57df\u90fd\u6709\u5e94\u7528\u3002\u6bd4\u5982\u5728\u4fe1\u606f\u7f16\u7801\u8fc7\u7a0b\u4e2d\uff0c\u4e3a\u4e86\u589e\u5f3a\u5bb9\u9519\u6027\uff0c\u5e94\u4f7f\u5f97\u7f16\u7801\u95f4\u7684\u6700\u5c0f\u6c49\u660e\u8ddd\u79bb\u5c3d\u53ef\u80fd\u5927\u3002\u4f46\u662f\uff0c\u5982\u679c\u8981\u6bd4\u8f83\u4e24\u4e2a\u4e0d\u540c\u957f\u5ea6\u7684\u5b57\u7b26\u4e32\uff0c\u4e0d\u4ec5\u8981\u8fdb\u884c\u66ff\u6362\uff0c\u800c\u4e14\u8981\u8fdb\u884c\u63d2\u5165\u4e0e\u5220\u9664\u7684\u8fd0\u7b97\uff0c\u5728\u8fd9\u79cd\u573a\u5408\u4e0b\uff0c\u901a\u5e38\u4f7f\u7528\u66f4\u52a0\u590d\u6742\u7684\u7f16\u8f91\u8ddd\u79bb\u7b49\u7b97\u6cd5\u3002<\/span><\/p>\n<h1 class=\"p1\"><span class=\"s1\"><b>9. <\/b><\/span><span class=\"s11\"><b>\u6770\u5361\u5fb7\u8ddd\u79bb<\/b><\/span><span class=\"s1\"><b>(Jaccard Distance)<\/b><\/span><\/h1>\n<ul>\n<li><b><\/b><span class=\"s5\"><b>\u6770\u5361\u5fb7\u76f8\u4f3c\u7cfb\u6570<\/b><\/span><span class=\"s1\"><b>(Jaccard similarity coefficient)<\/b><\/span><\/li>\n<\/ul>\n<p class=\"p3\" style=\"padding-left: 30px;\"><span class=\"s1\">\u4e24\u4e2a\u96c6\u5408<\/span><span class=\"s7\">A<\/span><span class=\"s1\">\u548c<\/span><span class=\"s7\">B<\/span><span class=\"s1\">\u7684\u4ea4\u96c6\u5143\u7d20\u5728<\/span><span class=\"s7\">A<\/span><span class=\"s1\">\uff0c<\/span><span class=\"s7\">B<\/span><span class=\"s1\">\u7684\u5e76\u96c6\u4e2d\u6240\u5360\u7684\u6bd4\u4f8b\uff0c\u79f0\u4e3a\u4e24\u4e2a\u96c6\u5408\u7684\u6770\u5361\u5fb7\u76f8\u4f3c\u7cfb\u6570\uff0c\u7528\u7b26\u53f7<\/span><span class=\"s7\">J(A,B)<\/span><span class=\"s1\">\u8868\u793a\uff1a<\/span><\/p>\n<p style=\"text-align: center;\"><a href=\"https:\/\/www.zhuyanbin.com\/wp-content\/uploads\/2018\/08\/91.png\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-474\" src=\"https:\/\/www.zhuyanbin.com\/wp-content\/uploads\/2018\/08\/91.png\" alt=\"\" width=\"118\" height=\"42\" \/><\/a><\/p>\n<p class=\"p3\" style=\"padding-left: 30px;\"><span class=\"s1\">\u6770\u5361\u5fb7\u76f8\u4f3c\u7cfb\u6570\u662f\u8861\u91cf\u4e24\u4e2a\u96c6\u5408\u7684\u76f8\u4f3c\u5ea6\u4e00\u79cd\u6307\u6807\u3002<\/span><\/p>\n<ul>\n<li><b><\/b><span class=\"s5\"><b>\u6770\u5361\u5fb7\u8ddd\u79bb<\/b><\/span><span class=\"s1\"><b>(Jaccard Distance)<\/b><\/span><\/li>\n<\/ul>\n<p class=\"p18\" style=\"padding-left: 30px;\"><span class=\"s1\">\u4e0e\u6770\u5361\u5fb7\u76f8\u4f3c\u7cfb\u6570\u76f8\u53cd\uff0c\u7528\u4e24\u4e2a\u96c6\u5408\u4e2d\u4e0d\u540c\u5143\u7d20\u5360\u6240\u6709\u5143\u7d20\u7684\u6bd4\u4f8b\u6765\u8861\u91cf\u4e24\u4e2a\u96c6\u5408\u7684\u533a\u5206\u5ea6\uff1a<\/span><\/p>\n<p style=\"text-align: center;\"><a href=\"https:\/\/www.zhuyanbin.com\/wp-content\/uploads\/2018\/08\/92.png\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-475\" src=\"https:\/\/www.zhuyanbin.com\/wp-content\/uploads\/2018\/08\/92.png\" alt=\"\" width=\"290\" height=\"42\" \/><\/a><\/p>\n<h1 class=\"p1\"><span class=\"s1\"><b>10. <\/b><\/span><span class=\"s11\"><b>\u76f8\u5173\u8ddd\u79bb<\/b><\/span><span class=\"s1\"><b>(Correlation distance)<\/b><\/span><\/h1>\n<p style=\"text-align: center;\"><a href=\"https:\/\/www.zhuyanbin.com\/wp-content\/uploads\/2018\/08\/10_1.png\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-453\" src=\"https:\/\/www.zhuyanbin.com\/wp-content\/uploads\/2018\/08\/10_1.png\" alt=\"\" width=\"587\" height=\"208\" srcset=\"https:\/\/www.yanbin888.com\/wp-content\/uploads\/2018\/08\/10_1.png 587w, https:\/\/www.yanbin888.com\/wp-content\/uploads\/2018\/08\/10_1-300x106.png 300w\" sizes=\"auto, (max-width: 587px) 100vw, 587px\" \/><\/a><\/p>\n<ul>\n<li><b><\/b><span class=\"s5\"><b>\u76f8\u5173\u7cfb\u6570<\/b><\/span><\/li>\n<\/ul>\n<p class=\"p3\" style=\"padding-left: 30px;\"><span class=\"s1\">\u8861\u91cf\u968f\u673a\u53d8\u91cf<\/span><span class=\"s7\">X<\/span><span class=\"s1\">\u4e0e<\/span><span class=\"s7\">Y<\/span><span class=\"s1\">\u76f8\u5173\u7a0b\u5ea6\u7684\u4e00\u79cd\u65b9\u6cd5\uff0c\u76f8\u5173\u7cfb\u6570\u7684\u53d6\u503c\u8303\u56f4\u662f<\/span><span class=\"s7\">[-1,1]<\/span><span class=\"s1\">\u3002\u76f8\u5173\u7cfb\u6570\u7684\u7edd\u5bf9\u503c\u8d8a\u5927\uff0c\u5219\u8868\u660e<\/span><span class=\"s7\">X<\/span><span class=\"s1\">\u4e0e<\/span><span class=\"s7\">Y<\/span><span class=\"s1\">\u76f8\u5173\u5ea6\u8d8a\u9ad8\u3002\u5f53<\/span><span class=\"s7\">X<\/span><span class=\"s1\">\u4e0e<\/span><span class=\"s7\">Y<\/span><span class=\"s1\">\u7ebf\u6027\u76f8\u5173\u65f6\uff0c\u76f8\u5173\u7cfb\u6570\u53d6\u503c\u4e3a<\/span><span class=\"s7\">1<\/span><span class=\"s1\">\uff08\u6b63\u7ebf\u6027\u76f8\u5173\uff09\u6216<\/span><span class=\"s7\">-1<\/span><span class=\"s1\">\uff08\u8d1f\u7ebf\u6027\u76f8\u5173\uff09\uff1a<\/span><\/p>\n<p style=\"text-align: center;\"><a href=\"https:\/\/www.zhuyanbin.com\/wp-content\/uploads\/2018\/08\/10_2.png\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-454\" src=\"https:\/\/www.zhuyanbin.com\/wp-content\/uploads\/2018\/08\/10_2.png\" alt=\"\" width=\"317\" height=\"62\" srcset=\"https:\/\/www.yanbin888.com\/wp-content\/uploads\/2018\/08\/10_2.png 317w, https:\/\/www.yanbin888.com\/wp-content\/uploads\/2018\/08\/10_2-300x59.png 300w\" sizes=\"auto, (max-width: 317px) 100vw, 317px\" \/><\/a><\/p>\n<ul>\n<li><b><\/b><span class=\"s5\"><b>\u76f8\u5173\u8ddd\u79bb<\/b><\/span><\/li>\n<\/ul>\n<p style=\"text-align: center;\"><a href=\"https:\/\/www.zhuyanbin.com\/wp-content\/uploads\/2018\/08\/10_3.png\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-455\" src=\"https:\/\/www.zhuyanbin.com\/wp-content\/uploads\/2018\/08\/10_3.png\" alt=\"\" width=\"101\" height=\"21\" \/><\/a><\/p>\n<h1 class=\"p1\"><b><\/b><span class=\"s1\"><b>11. <\/b><\/span><span class=\"s11\"><b>\u4fe1\u606f\u71b5<\/b><\/span><span class=\"s1\"><b>(Information Entropy)<\/b><\/span><\/h1>\n<p class=\"p3\"><span class=\"s1\">\u4ee5\u4e0a\u7684\u8ddd\u79bb\u5ea6\u91cf\u65b9\u6cd5\u5ea6\u91cf\u7684\u7686\u4e3a\u4e24\u4e2a\u6837\u672c\uff08\u5411\u91cf\uff09\u4e4b\u95f4\u7684\u8ddd\u79bb\uff0c\u800c\u4fe1\u606f\u71b5\u63cf\u8ff0\u7684\u662f\u6574\u4e2a\u7cfb\u7edf\u5185\u90e8\u6837\u672c\u4e4b\u95f4\u7684\u4e00\u4e2a\u8ddd\u79bb\uff0c\u6216\u8005\u79f0\u4e4b\u4e3a\u7cfb\u7edf\u5185\u6837\u672c\u5206\u5e03\u7684\u96c6\u4e2d\u7a0b\u5ea6\uff08\u4e00\u81f4\u7a0b\u5ea6\uff09\u3001\u5206\u6563\u7a0b\u5ea6\u3001\u6df7\u4e71\u7a0b\u5ea6\uff08\u4e0d\u4e00\u81f4\u7a0b\u5ea6\uff09\u3002\u7cfb\u7edf\u5185\u6837\u672c\u5206\u5e03\u8d8a\u5206\u6563<\/span><span class=\"s7\">(<\/span><span class=\"s1\">\u6216\u8005\u8bf4\u5206\u5e03\u8d8a\u5e73\u5747<\/span><span class=\"s7\">)<\/span><span class=\"s1\">\uff0c\u4fe1\u606f\u71b5\u5c31\u8d8a\u5927\u3002\u5206\u5e03\u8d8a\u6709\u5e8f\uff08\u6216\u8005\u8bf4\u5206\u5e03\u8d8a\u96c6\u4e2d\uff09\uff0c\u4fe1\u606f\u71b5\u5c31\u8d8a\u5c0f\u3002<\/span><\/p>\n<p style=\"text-align: center;\"><a href=\"https:\/\/www.zhuyanbin.com\/wp-content\/uploads\/2018\/08\/11_1.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-456\" src=\"https:\/\/www.zhuyanbin.com\/wp-content\/uploads\/2018\/08\/11_1.jpg\" alt=\"\" width=\"490\" height=\"265\" srcset=\"https:\/\/www.yanbin888.com\/wp-content\/uploads\/2018\/08\/11_1.jpg 490w, https:\/\/www.yanbin888.com\/wp-content\/uploads\/2018\/08\/11_1-300x162.jpg 300w\" sizes=\"auto, (max-width: 490px) 100vw, 490px\" \/><\/a><\/p>\n<ul>\n<li><b><\/b><span class=\"s1\"><b>\u8ba1\u7b97\u7ed9\u5b9a\u7684\u6837\u672c\u96c6<\/b><\/span><span class=\"s7\"><b>X<\/b><\/span><span class=\"s1\"><b>\u7684\u4fe1\u606f\u71b5\u7684\u516c\u5f0f\uff1a<\/b><\/span><\/li>\n<\/ul>\n<p style=\"text-align: center;\"><a href=\"https:\/\/www.zhuyanbin.com\/wp-content\/uploads\/2018\/08\/11_2.png\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-457\" src=\"https:\/\/www.zhuyanbin.com\/wp-content\/uploads\/2018\/08\/11_2.png\" alt=\"\" width=\"198\" height=\"62\" \/><\/a><\/p>\n<ul>\n<li class=\"p3\"><strong><span class=\"s1\">\u53c2\u6570\u7684\u542b\u4e49\uff1a<\/span><\/strong><\/li>\n<\/ul>\n<p class=\"p3\" style=\"padding-left: 60px;\"><span class=\"s7\">n<\/span><span class=\"s1\">\uff1a\u6837\u672c\u96c6<\/span><span class=\"s7\">X<\/span><span class=\"s1\">\u7684\u5206\u7c7b\u6570<\/span><\/p>\n<p class=\"p3\" style=\"padding-left: 60px;\"><span class=\"s7\">pi<\/span><span class=\"s1\">\uff1a<\/span><span class=\"s7\">X<\/span><span class=\"s1\">\u4e2d\u7b2c<\/span><span class=\"s7\"> i <\/span><span class=\"s1\">\u7c7b\u5143\u7d20\u51fa\u73b0\u7684\u6982\u7387<\/span><\/p>\n<p class=\"p3\" style=\"padding-left: 30px;\"><span class=\"s1\">\u4fe1\u606f\u71b5\u8d8a\u5927\u8868\u660e\u6837\u672c\u96c6<\/span><span class=\"s7\">S<\/span><span class=\"s1\">\u7684\u5206\u5e03\u8d8a\u5206\u6563\uff08\u5206\u5e03\u5747\u8861\uff09\uff0c\u4fe1\u606f\u71b5\u8d8a\u5c0f\u5219\u8868\u660e\u6837\u672c\u96c6<\/span><span class=\"s7\">X<\/span><span class=\"s1\">\u7684\u5206\u5e03\u8d8a\u96c6\u4e2d\uff08\u5206\u5e03\u4e0d\u5747\u8861\uff09\u3002\u5f53<\/span><span class=\"s7\">S<\/span><span class=\"s1\">\u4e2d<\/span><span class=\"s7\">n<\/span><span class=\"s1\">\u4e2a\u5206\u7c7b\u51fa\u73b0\u7684\u6982\u7387\u4e00\u6837\u5927\u65f6\uff08\u90fd\u662f<\/span><span class=\"s7\">1\/n<\/span><span class=\"s1\">\uff09\uff0c\u4fe1\u606f\u71b5\u53d6\u6700\u5927\u503c<\/span><span class=\"s7\">log2(n)<\/span><span class=\"s1\">\u3002\u5f53<\/span><span class=\"s7\">X<\/span><span class=\"s1\">\u53ea\u6709\u4e00\u4e2a\u5206\u7c7b\u65f6\uff0c\u4fe1\u606f\u71b5\u53d6\u6700\u5c0f\u503c<\/span><span class=\"s7\">0<\/span><span class=\"s1\">\u3002<\/span><\/p>\n<p><audio style=\"display: none;\" controls=\"controls\"><\/audio><\/p>\n<p><audio style=\"display: none;\" controls=\"controls\"><\/audio><\/p>\n<p><audio style=\"display: none;\" controls=\"controls\"><\/audio><\/p>\n<p><audio style=\"display: none;\" controls=\"controls\"><\/audio><\/p>\n<p><audio style=\"display: none;\" controls=\"controls\"><\/audio><\/p>\n<p><audio style=\"display: none;\" controls=\"controls\"><\/audio><\/p>\n","protected":false},"excerpt":{"rendered":"<p>1. \u6b27\u6c0f\u8ddd\u79bb(Euclidean Distance) \u6b27\u6c0f\u8ddd\u79bb\u662f\u6700\u6613\u4e8e\u7406\u89e3\u7684\u4e00\u79cd\u8ddd\u79bb\u8ba1\u7b97\u65b9\u6cd5\uff0c\u6e90\u81ea\u6b27\u6c0f\u7a7a\u95f4\u4e2d <span class=\"ellipsis\">&hellip;<\/span> <span class=\"more-link-wrap\"><a href=\"https:\/\/www.yanbin888.com\/?p=440\" class=\"more-link\"><span>Read More &rarr;<\/span><\/a><\/span><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[47],"tags":[48],"class_list":["post-440","post","type-post","status-publish","format-standard","hentry","category-tensorflow","tag-tensorflow"],"_links":{"self":[{"href":"https:\/\/www.yanbin888.com\/index.php?rest_route=\/wp\/v2\/posts\/440","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.yanbin888.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.yanbin888.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.yanbin888.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.yanbin888.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=440"}],"version-history":[{"count":11,"href":"https:\/\/www.yanbin888.com\/index.php?rest_route=\/wp\/v2\/posts\/440\/revisions"}],"predecessor-version":[{"id":537,"href":"https:\/\/www.yanbin888.com\/index.php?rest_route=\/wp\/v2\/posts\/440\/revisions\/537"}],"wp:attachment":[{"href":"https:\/\/www.yanbin888.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=440"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.yanbin888.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=440"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.yanbin888.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=440"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}