Ⅰ 濡備綍鍒╃敤鏁版嵁鎸栨帢綆楁硶榪涜岀簿鍑嗚惀閿錛
鏁版嵁鎸栨帢錛屽凡鎴愪負鍚勫ぇ鍏鍙哥殑蹇呭囪亴浣嶏紝閽堝歸【瀹㈣屼負鍜岃喘涔板巻鍙茬瓑榪涜屾暟鎹鏁村悎銆佸垎鏋愭寲鎺橈紝杈懼埌綺懼噯瀹氫綅钀ラ攢鐨勭洰鐨勩備絾鏁版嵁鎸栨帢騫朵笉鏄綆鍗曠殑鏁版嵁閲囩紪錛屾洿澶氶渶瑕佷竴浜涚畻娉曟妧宸э紝姣斿傛垜浠鍋氭暟鎹鎸栨帢浼氶噰鐢ㄥ垎綾葷畻娉曘佽仛綾葷畻娉曘佸叧鑱旇勫垯絳夈備笅闈 澶у湥浼楀寘濞佸㈠鉤鍙 鎴戝氨榪欎笁縐嶇畻娉曡︾粏浠嬬粛涓嬶紝濡備綍瀹炵幇綺懼噯钀ラ攢銆
鍒嗙被綆楁硶錛
鎴戜滑鍋氱數鍟嗗鉤鍙幫紝鐢ㄦ埛鐣欏瓨鏄寰堥噸瑕佺殑涓閮ㄥ垎錛屼絾欏懼㈡祦澶辮蛋鍚戞垜浠鏄鏃犳硶鎺у埗鐨勶紝鍙鑳介氳繃棰勬祴錛岃繖鏃跺氨闇瑕佽繍鐢ㄥ埌鍒嗙被妯″瀷銆傚垎綾葷畻娉曞睘浜庨勬祴鎬фā鍨嬶紝鏍規嵁榪囧幓鏁版嵁銆佸垎鏋愭潵棰勬祴灝嗘潵涓孌墊椂闂寸殑琛屼負榪囩▼銆傚垎綾誨︿範鏂規硶鎵浣跨敤鐨勬暟鎹闆嗙О涓鴻緇冮泦錛岃緇冮泦涓姣忎竴涓涓浣撻兘鏈夋槑紜鐨勭被鍒錛岄氳繃璁緇冮泦涓鐨勬暟鎹琛ㄧ幇鍑烘潵鐨勭壒寰侊紝涓烘瘡涓涓綾繪壘鍒頒竴縐嶅噯紜鐨勬弿榪版垨鑰呮ā鍨嬨傚叾浼樼偣鏄瀹規槗鐞嗚В銆侀勬祴鍑嗙『搴﹂珮銆傚垎綾葷畻娉曟湁logistic鍥炲綊錛岀炵粡緗戠粶銆佽礉鍙舵柉鍒嗙被鍣ㄣ丼VM絳夌畻娉曘
鍒嗙被綆楁硶瀹為檯搴旂敤妗堜緥錛
姣斿傞珮灝斿か鐞冨満錛岃繖涓璺熷ぉ姘旀儏鍐靛叧緋誨瘑鍒囷紝鍥犱負鍓嶆湡鐨勬暟鎹鍒嗘瀽錛屽緱鍑哄ぉ姘旀槸鍚︽櫞鏈楋紝姘旀俯濡備綍錛屾箍搴﹀備綍銆侀庡姏濡備綍閮戒細褰卞搷鍒版墦楂樺皵澶鐞冨満鐨勪漢錛屽洜姝わ紝浣滀負涓涓楂樺皵澶鐞冨満鐨勮繍钀ヤ漢鍛樹究鍙浠ユ牴鎹鍒嗙被妯″瀷錛屽幓鏋勫緩鍐崇瓥鏍戱紝涓嶅悓鐨勫ぉ姘斿洜緔狅紝鍐沖畾鏄鍚﹀紑鏀劇瓑銆
鑱氱被綆楁硶錛
璇村畬鍒嗙被綆楁硶錛岃皥璋堣仛綾伙紝鑱氱被綆楁硶涓昏佹槸鎸夌収鏍鋒湰銆佹暟鎹鑷韜鐨勫睘鎬у幓褰掔被錛岀敤鏁板︽柟娉曟牴鎹鐩鎬技鎬ф垨宸寮傛ф寚鏍囷紝瀹氶噺紜瀹氭牱鏈浜茬枏鍏崇郴銆傝仛綾繪湁Kmeas錛孴wo-step
鑱氱被綆楁硶瀹為檯搴旂敤妗堜緥錛
鐢靛晢鍏鍙告兂瑕佹柊榪涗竴鎵歸珮絝鏈嶈咃紝浣嗙┒絝熻繘浠涔堟懼紡絳夛紝榪欓渶瑕佹牴鎹娑堣垂緹や綋鐗瑰緛鏉ュ垎綾伙紝棣栧厛闇瑕佷粠涓婁竴騫寸殑鏁版嵁錛屾煡鐪嬮【瀹㈣喘涔拌屼負銆佹秷璐歸濄佽喘涔版椂闂寸瓑閫氳繃鑱氱被鏂規硶榪涜屽垎綾伙紝鎵懼嚭姣忕被緹や綋鐨勭壒寰侊紝鐒跺悗鏍規嵁榪欑被緹や綋榪涜岀浉搴旂殑鎺ㄩ侊紝鑰屼笉鏄騫挎拻緗戞ā寮忋
鍏寵仈瑙勫垯錛
鍏寵仈鍒嗘瀽鏄浠庡ぇ閲忔暟鎹涓鍙戠幇鏍鋒湰涔嬮棿鏈夎叮鐨勫叧鑱斿拰鍏崇郴錛屼粠鑰屼負鐢ㄦ埛鎺ㄩ併傚叧鑱斿垎鏋愪富瑕佺敤鈥滄敮鎸佸害鈥(support)鍜屸滅疆鎬у害鈥(confidence)涓や釜姒傚康琛￠噺浜嬬墿涔嬮棿鐨勫叧鑱旇勫垯銆傚叧鑱旇勫垯A->B鐨勬敮鎸佸害support=P(AB)錛屾寚鐨勬槸浜嬩歡A鍜屼簨浠禕鍚屾椂鍙戠敓鐨勬傜巼銆傜疆淇″害confidence=P(B|A)=P(AB)/P(A),鎸囩殑鏄鍙戠敓浜嬩歡A鐨勫熀紜涓婂彂鐢熶簨浠禕鐨勬傜巼銆傝繖鏈夌偣鍍忔垜浠楂樹腑鐨勬傜巼瀛︺
鎴戜滑甯歌佺殑鐢靛晢騫沖彴錛屸滀負浣犳帹鑽愨濄佲滆喘涔拌ヤ駭鍝佺殑鐢ㄦ埛榪樿喘涔頒簡鈥濈瓑閮藉睘浜庡叧鑱斿垎鏋愶紝鍏朵緷鎹灝辨槸閫氳繃鍒嗘瀽涔嬪墠璐涔頒駭鍝佺殑欏懼㈢殑璐鐗╃鍒嗘瀽錛屽垎鏋愰【瀹㈢殑璐涔頒範鎯錛屽彲浠ュ府鍔╅浂鍞鍟嗗埗瀹氳惀閿絳栫暐銆
鏁版嵁鎸栨帢涓嶆槸綆鍗曠殑鏁版嵁鏁村悎錛岄噰闆嗭紝鏇村氭槸鏍規嵁鐢ㄦ埛鐨勮屼負涔犳儻錛屾繁鍏ュ垎鏋愮敤鎴風殑鎰忓浘錛屼簡瑙ｈ儗鍚庣殑鍔ㄦ満錛屾墠鑳界粰浜堜紒涓氬喅絳栵紝鏇村ソ鏈嶅姟钀ラ攢銆
鍘熸枃鍦板潃錛 http://www.dashengzb.cn/articles/a-146.html