鏁版嵁搴撲腑鐨勭煡璇嗗彂鐜発dd錛坘nowledge discovery in databases錛夊拰鏁版嵁鎸栨帢dm錛坉ata mining錛夋槸鍦ㄩ渶姹傜殑椹卞姩涓嬪彂灞曡搗鏉ョ殑涓闂ㄦ柊鐨勬妧鏈傞殢鐫鍦ㄦ斂搴滈儴闂ㄣ佷紒浜嬩笟鍗曚綅銆佸ぇ鍨嬮噾铻嶄繚闄╂満鏋勩佸ぇ鍨嬪晢涓氭満鏋勩佸ぇ鍨嬪埗閫犱笟鍙婄鐮旀満鏋勬暟鎹簱鐨勫ぇ閲忓緩绔嬶紝鏁版嵁縐瘡鎴愬嶅湴鎬ュ墽澧為暱錛屽浣曞厖鍒嗗埄鐢ㄨ繖浜涘ぇ閲忔暟鎹?瀵規(guī)暟鎹繘琛屽垎鏋愭潵鎸囧鐢熶駭宸ヤ綔銆佽繍钀ュ伐浣溿侀攢鍞伐浣溿佺珵浜夌瓥鐣? 緇欓瀵艱呯殑鍐崇瓥涓浜涙敮鎸侊紱鍙︿竴鏂歸潰錛屽浣曚粠澶ч噺鏁版嵁涓寲鎺樺嚭鏈夌敤鐨勪俊鎭紙妯″紡錛夊拰鐭ヨ瘑錛堣寰嬶級錛屾寲鎺樺嚭縐戝涓婄殑鏈煡瑙勫緥, 宸叉垚涓轟漢綾婚渶瑕佹ュ垏瑙e喅鐨勯棶棰樸傚洜姝ゆ暟鎹寲鎺樻妧鏈佺煡璇嗗彂鐜扮郴緇熷氨鎴愪負褰撲粖璁$畻鏈洪鍩熺殑鐮旂┒鍜屽叧娉ㄧ殑鐑偣涔嬩竴銆?/P>
闅忕潃鏁版嵁縐瘡鐨勫闀匡紝鍏呭垎鍒╃敤澶ч噺鏁版嵁錛堝嵆瀵規(guī)暟鎹繘琛屽垎鏋愭潵鎸囧宸ヤ綔錛夛紝騫朵粠澶ч噺鏁版嵁涓寲鎺樺嚭鏈夌敤鐨勪俊鎭拰鐭ヨ瘑錛屾壘鍑烘湭鐭ョ殑瑙勫緥錛屽凡鎴愪負浜虹被鎬ラ渶瑙e喅鐨勯棶棰樸傛湰鏂囧氨鏁版嵁鎸栨帢鎶鏈佺煡璇嗗彂鐜扮郴緇熻繖涓鐑偣闂闃愯堪鍏舵垚鍔熺殑鍏抽敭銆侀潰涓寸殑闂鍙婃墍閲囩敤鐨勬妧鏈?BR>
銆銆鏁版嵁搴撲腑鐨勭煡璇嗗彂鐜発dd錛坘nowledge discovery in databases錛夊拰鏁版嵁鎸栨帢dm錛坉ata mining錛夋槸鍦ㄩ渶姹傜殑椹卞姩涓嬪彂灞曡搗鏉ョ殑涓闂ㄦ柊鐨勬妧鏈傞殢鐫鍦ㄦ斂搴滈儴闂ㄣ佷紒浜嬩笟鍗曚綅銆佸ぇ鍨嬮噾铻嶄繚闄╂満鏋勩佸ぇ鍨嬪晢涓氭満鏋勩佸ぇ鍨嬪埗閫犱笟鍙婄鐮旀満鏋勬暟鎹簱鐨勫ぇ閲忓緩绔嬶紝鏁版嵁縐瘡鎴愬嶅湴鎬ュ墽澧為暱錛屽浣曞厖鍒嗗埄鐢ㄨ繖浜涘ぇ閲忔暟鎹?瀵規(guī)暟鎹繘琛屽垎鏋愭潵鎸囧鐢熶駭宸ヤ綔銆佽繍钀ュ伐浣溿侀攢鍞伐浣溿佺珵浜夌瓥鐣? 緇欓瀵艱呯殑鍐崇瓥涓浜涙敮鎸侊紱鍙︿竴鏂歸潰錛屽浣曚粠澶ч噺鏁版嵁涓寲鎺樺嚭鏈夌敤鐨勪俊鎭紙妯″紡錛夊拰鐭ヨ瘑錛堣寰嬶級錛屾寲鎺樺嚭縐戝涓婄殑鏈煡瑙勫緥, 宸叉垚涓轟漢綾婚渶瑕佹ュ垏瑙e喅鐨勯棶棰樸傚洜姝ゆ暟鎹寲鎺樻妧鏈佺煡璇嗗彂鐜扮郴緇熷氨鎴愪負褰撲粖璁$畻鏈洪鍩熺殑鐮旂┒鍜屽叧娉ㄧ殑鐑偣涔嬩竴銆?BR>
銆銆闅忕潃kdd鐨勬繁鍏ュ彂灞曞拰internet 鐨勬櫘鍙婏紝緗戜笂淇℃伅鐨勫ぇ閲忓鍔狅紝璁稿淇℃伅鍦ㄧ綉涓婂彂甯冿紝錛激錛ゅ湪錛鳳擠錛風綉涓婃寲鎺樹篃褰㈡垚浜嗙儹鐐癸紝騫跺艦鎴愪簡鍩轟簬internet鐨剋eb mining鎶鏈紝web mining鍖呮嫭:web 鍐呭鎸栨帢錛寃eb緇撴瀯鎸栨帢錛寃eb 鐢ㄦ埛琛屼負鎸栨帢錛屽綋閬囧埌鐨勬湁鏂囨湰銆佸浘褰€佸浘鍍忕瓑淇℃伅錛屽張褰㈡垚浜唗ext mining鍜宨mage mining錛屽濯掍綋鎸栨帢絳夋柊鐨刱dd鐨勬柊鏂瑰悜銆?BR>
銆銆kdd錛氬畾涔夊拰榪囩▼
銆銆1銆?kdd鐨勫畾涔?BR>
銆銆璁稿鐮旂┒鑰呬粠涓嶅悓鐨勮搴︾粰鍑轟簡鏈夊叧kdd鐨勫畾涔夛紝鐩墠杈冧竴鑷磋鍚岀殑鎻忚堪鎬у畾涔夋槸fayyad絳変漢緇欏嚭鐨勶細kdd鏄粠鏁版嵁闆嗕腑璇嗗埆鍑烘湁鏁堢殑銆佹柊棰栫殑銆佹綔鍦ㄦ湁鐢ㄧ殑浠ュ強鏈緇堝彲鐞嗚В鐨勬ā寮忕殑闈炲鉤鍑¤繃紼嬨?BR>
銆銆鍦ㄤ笂榪板畾涔変腑鎸囧嚭kdd鏄釜榪囩▼錛屾槸浠庢暟鎹泦璇嗗埆妯″紡鐨勮繃紼嬶紝鍑犱釜瀹氳閮芥槸涓嶅彲灝戙?BR>
銆銆2銆乲dd鐨勮繃紼?BR>
銆銆kdd榪囩▼鍙垎涓烘暟鎹噯澶囥佹暟鎹寲鎺樹互鍙婄粨鏋滅殑瑙i噴璇勪環(huán)錛屽鍥炬墍紺恒?nbsp;
銆銆鍥撅細kdd鐨勪富瑕佽繃紼?BR>
銆銆錛?錛夋暟鎹噯澶囷細鏁版嵁鍑嗗鍙垎涓烘暟鎹夊彇/鎶芥牱銆佹暟鎹澶勭悊鍜屾暟鎹漿鎹€?BR>
銆銆錛?錛夋暟鎹寲鎺橀樁孌碉細鏍規(guī)嵁鏁版嵁鎸栨帢鐨勪換鍔★紝紜畾閲囩敤鍝竴縐嶆暟鎹寲鎺樼畻娉曘傚悓鏍風殑鏁版嵁鎸栨帢浠誨姟鍙互鐢ㄤ笉鍚岀殑鏁版嵁鎸栨帢綆楁硶鏉ュ疄鐜幫紝鏁版嵁鎸栨帢綆楁硶鐨勯夋嫨涓昏鏄牴鎹互涓嬩袱涓柟闈㈢殑鍥犵礌錛氫竴鏄暟鎹殑鐗圭偣錛涗簩鏄敤鎴峰拰瀹為檯榪愯緋葷粺鐨勮姹傘傚湪瀹屾垚浜嗚繖浜涘噯澶囧伐浣滃悗錛屽氨鍙互榪涜鏁版嵁鎸栨帢浜嗐傛暟鎹寲鎺橀樁孌典粎鍗犳暣涓猭dd榪囩▼鐨?5錛呭乏鍙崇殑宸ヤ綔閲忋?BR>
銆銆錛?錛夌粨鏋滆В閲婂拰璇勪環(huán)錛氱粡鏁版嵁鎸栨帢鎵鍙戠幇鐨勬ā寮忥紝鍙兘瀛樺湪鍐椾綑鎴栫敤鎴蜂笉鎰熷叴瓚g殑妯″紡錛岃繖鏃墮渶瑕佸皢鍏墮櫎鍘伙紱涔熸湁鍙兘鎵鍙戠幇鐨勬ā寮忎笉鑳芥弧瓚崇敤鎴風殑闇瑕侊紝瑕佹眰鏁翠釜鍙戠幇榪囩▼鍐嶈繑鍥炲埌鏁版嵁鎸栨帢闃舵涔嬪墠錛岄噸鏂拌繘琛屾暟鎹夊彇/鎶芥牱銆佹暟鎹彉鎹㈠拰鏁版嵁鎸栨帢錛岀敋鑷蟲崲涓縐嶆寲鎺樼畻娉曪紙濡傚湪鍙戠幇鍒嗙被瑙勫垯灝辨湁澶氱鏁版嵁鎸栨帢鏂規(guī)硶鍙緵閫夋嫨錛屼笉鍚岀殑鏂規(guī)硶鍙兘鍏鋒湁涓嶅悓鐨勬寲鎺樻晥鏋滐級銆?BR>
銆銆鎴愬姛鐨勫叧閿笌闈復鐨勯棶棰?BR>
銆銆鏁版嵁鎸栨帢涓庣煡璇嗗彂鐜頒笉鏄粰鍑轟竴浜涙暟鎹紝閲囩敤涓浜涙暟鎹寲鎺樼畻娉曞氨鍙互杞繪槗鍦版寲鎺樺嚭鐭ヨ瘑錛屾暟鎹寲鎺樹笌鐭ヨ瘑鍙戠幇鎴愬姛鐨勫叧閿繀欏誨仛鍒頒笅闈㈠嚑鐐癸細
銆銆1銆?鏈夋槑紜殑鐩爣錛氱敤 kdd鏂規(guī)硶瑕佽В鍐充粈涔堥棶棰橈紝鎸栨帢浠涔堟牱鐨勬ā寮忋佽寰嬫垨鐭ヨ瘑錛屽繀欏繪彁鍑鴻鎸栨帢鐨勭洰鏍囥傝繖涓鐐規(guī)槸鑳藉惁鎸栨帢鍑烘湁鐢ㄧ煡璇嗗熀鐐癸紝涓嶈兘璇達紝鎴戠粰浣犱竴浜涙暟鎹紝浣犵粰鎴戞寲鎺樺嚭鐭ヨ瘑鏉ワ紝鍦ㄧ粰鍑烘暟鎹悗錛岄噰鐢ㄤ粈涔堟寲鎺樻柟娉曪紝鎬庢牱鎸栨帢錛屽繀欏誨湪鏈夋槑紜洰鏍囨儏鍐典笅榪涜錛岀洸鐩殑鎸栨帢浣挎寲鎺樼郴緇熸棤娉曡繘琛屻?BR>
銆銆2銆?鐩稿杈冮暱涓孌墊椂闂村拰鐩稿鍑嗙‘鐨勬暟鎹殑縐瘡錛氭暟鎹槸鐭ヨ瘑鍙戠幇鐨勫熀紜錛屾暟鎹殑璐ㄩ噺鍜屾暟閲忓鐭ヨ瘑鍙戠幇璧峰喅瀹氭т綔鐢紝涓嶆槸闅忎究緇欎竴浜涙暟鎹氨鑳芥寲鎺樺嚭鏈夌敤鐨勭煡璇嗭紝鏁版嵁蹇呴』鏈変竴瀹氱殑璐ㄩ噺鍜屾暟閲忥紝鍦ㄦ瀬涓嶅畬鏁寸殑鏁版嵁涓婅繘琛屾暟鎹寲鎺樹笉浼氬緱鍒板ソ鐨勭粨鏋滐紝寰寰鏁版嵁璐ㄩ噺鍜屾暟閲忔瘮鏁版嵁鎸栨帢鏂規(guī)硶鏇撮噸瑕併?BR>
銆銆3銆?棰嗗煙涓撳鐨勫弬涓庡拰鎸囧錛氫粠鐩爣鐨勬槑紜埌鎸栧埌淇℃伅鍜岀煡璇嗙殑璇勪環(huán)涓庡垽鏂兘闇瑕侀鍩熶笓瀹剁殑鎸囧錛屽惁鍒欑煡璇嗙殑鍙俊搴﹀拰鍙潬鎬ч兘鍊煎緱鎬鐤戙?BR>
銆銆kdd鐮旂┒闈復鐨勯棶棰橈細
銆銆kdd鏄竴涓柊鍏寸殑鐮旂┒棰嗗煙錛岀洰鍓嶈繕澶勫湪鍙戝睍鐨勯樁孌碉紝榪樻湁寰堝鐨勭爺絀墮毦棰樻湁寰呰В鍐籌紝鏁版嵁鐨勫法閲忔с佸姩鎬佹с佸鏍鋒с佷笉涓鑷存с佸櫔澹版с佺己鍊煎拰紼鐤忔с佸彂鐜版ā寮忕殑鍙悊瑙fс佸叴瓚e害絳夐兘緇檏dd甯︽潵闅懼害錛涙暟鎹川閲忋佺畻娉曠殑鏈夋晥鎬э紝鐭ヨ瘑鐨勫彲鐢ㄦч兘鏄爺絀剁殑璇鵑錛沰dd涓庡簲鐢ㄧ郴緇熺殑闆嗘垚錛宬dd涓庣敤鎴風殑浜や簰錛岀煡璇嗙殑鏇存柊綆$悊錛屽鏉傛暟鎹被鍨嬬殑澶勭悊絳夌瓑閮芥槸kdd鐮旂┒闈復鐨勬寫鎴樸?BR>
銆銆crisp鈥攄m綆浠?BR>
銆銆crisp-dm - cross industry standard process for data mining 鏄痭cr絳夊洓瀹跺叕鍙歌仈鍚堢殑鐮旂┒欏圭洰錛?997騫村紑濮嬶紝1999騫?鏈堝凡緇欏嚭涓涓垵姝ョ害100欏電殑鎶ュ憡錛屽湪姝ゅ鍏跺彧浣滅畝鍗曚粙緇? 瀹冨皢kdd榪囩▼鍒嗕負涓嬪垪鍑犱釜姝ラ錛?BR>
銆銆1銆?business understanding錛氬湪榪涜鏁版嵁鎸栨帢浠誨姟鏃墮鍏堣浠庝紒涓氱殑瑙掑害鏉ヤ簡瑙d換鍔$殑鐩爣鍜岃姹傦紝鐒跺悗灝嗚繖浜涚洰鏍囧拰瑕佹眰浣撶幇鍦ㄦ暟鎹寲鎺樼殑闂瀹氫箟涓拰涓鴻揪鍒拌繖涓洰鏍囨墍璁捐鐨勫垵濮嬬殑璁″垝涓?BR>
銆銆2銆?data understanding錛氫簡瑙f暟鎹鍏堜粠鏀墮泦鏁版嵁寮濮嬶紝涓轟繚璇佹暟鎹川閲忥紝涓哄鏁版嵁鐨勬繁鍒葷悊瑙e拰涓虹瓫閫夊嚭鎰熷叴瓚f暟鎹泦錛屽湪鍏舵繁鍒葷悊瑙f暟鎹殑鍩虹涓婏紝搴斾笉鏂敹闆嗙浉綾諱技鐨勬暟鎹紝浠ヤ究褰㈡垚瀵繪壘闅愯棌淇℃伅鐨勫亣璁俱?BR>
銆銆3銆?data preparation錛氭暟鎹噯澶囬樁孌靛寘鎷粠鍒濆鐨勭矖鏁版嵁涓嶆柇褰㈡垚閫傚悎鏁版嵁鎸栨帢妯″瀷鐨勬渶鍚庢暟鎹殑鍏ㄨ繃紼嬶紝鍖呮嫭鏁版嵁琛ㄦ牸銆佽褰曘佸睘鎬х殑閫夋嫨錛屾暟鎹殑杞崲鍜屾暟鎹竻鐞嗐傝繖欏瑰伐浣滆澶氭瀹屾垚銆?BR>
銆銆4銆?modeling錛氬湪榪欓樁孌靛悇縐嶆暟鎹寲鎺樻柟娉曟ā鍨嬭閫夋嫨鍜屽簲鐢紱妯″瀷鐨勫弬鏁拌鏍″噯鍒版渶浣沖箋傛湁璁稿鏁版嵁鎸栨帢鏂規(guī)硶鍙傚簲鍚屼竴鏁版嵁綾誨瀷錛屾湁浜涙暟鎹寲鎺樻柟娉曞鏁版嵁鏈夌壒瀹氳姹傘傛湁鏃惰繖闃舵榪樹細榪斿洖鍒版暟鎹噯澶囬樁孌點?BR>
銆銆5銆?evaluation錛氫粠鏁版嵁鍒嗘瀽浜哄憳鐨勮鐐圭湅錛屾墍閫夋ā鍨嬫湁鐩稿綋楂樼殑璐ㄩ噺錛屽湪鏈鍚庡簲鐢ㄦ帹騫挎椂錛屽繀欏繪洿鍔犲交搴曞湴璇勪環(huán)榪欎釜妯″瀷錛岀湅鐪嬩負鏋勬垚璇ユā鍨嬫墍鎵ц鐨勫悇涓楠よ兘鍚﹁揪鍒頒紒涓氳姹傜殑鐩爣錛屾洿閲嶈鐨勬槸浼佷笟鐨勫叧閿棶棰樻湁娌℃湁鍏呭垎鑰冭檻鍒般?BR>
銆銆6銆?deployment錛氫竴鑸潵璇? 浜х敓鎸栨帢鐨勬ā鍨嬪茍涓嶆槸浠誨姟鐨勭粨鏉? 铏界劧鎸栨帢寰楀埌浜嗙煡璇?浣嗙煡璇嗛渶瑕佺粍緇囧拰鍛堢幇緇欑敤鎴?浣跨敤鎴峰彲浠ュ緢濂界敤榪欎簺鐭ヨ瘑銆傛槸鍚﹂噰鐢ㄥ拰鎺ㄥ箍浣跨敤榪欑妯″瀷涓鑸敱鐢ㄦ埛鏉ヨ繘琛屽喅瀹氾紝鑰屼笉鏄垎鏋愪漢鍛樻潵榪涜鍐沖畾銆?BR>
銆銆閲囩敤鐨勫嚑縐嶆妧鏈?BR>
銆銆鏍規(guī)嵁鏁版嵁閲囨帢鎵閲囩敤鐨勬妧鏈ぇ鑷村垎涓猴細緇熻鏂規(guī)硶銆佹満鍣ㄥ涔犳柟娉曘佺緇忕綉緇滄柟娉曞拰鏁版嵁搴撴柟娉曘傜粺璁℃柟娉曚富瑕佸寘鎷細鍥炲綊鍒嗘瀽錛堝鍏冨洖褰掋佽嚜鍥炲綊絳夛級銆佸垽鍒垎鏋愶紙璐濆彾鏂垽鍒佽垂姝囧皵鍒ゅ埆銆侀潪鍙傛暟鍒ゅ埆絳夛級銆佽仛綾誨垎鏋愶紙緋葷粺鑱氱被銆佸姩鎬佽仛綾葷瓑錛夈佹帰绱㈡у垎鏋愶紙涓誨厓鍒嗘瀽娉曘佺浉鍏沖垎鏋愭硶絳夛級銆佽礉鍙舵柉鏂規(guī)硶(璐濆彾鏂綉緇? 璐濆彾鏂垎綾誨櫒絳?銆傛満鍣ㄥ涔犱富瑕佸寘鎷細褰掔撼瀛︿範鏂規(guī)硶錛堝喅絳栨爲銆佽鍒欏綊綰熾侀潰鍚戝睘鎬х殑褰掔撼鏂規(guī)硶絳夛級銆佸熀浜庝簨渚嬬殑瀛︿範銆侀仐浼犵畻娉曠瓑, 紲炵粡緗戠粶鏂規(guī)硶銆傛暟鎹簱鏂規(guī)硶涓昏鏄緇存暟鎹垎鏋愭垨olap鏂規(guī)硶錛涙澶栬繕鏈夋ā緋婃柟娉?綺楃硻闆嗘柟娉曞拰鍙鍖栨柟娉曘傜敱浜庣瘒騫呮墍闄愶紝鏈枃浠呭氨鍑犵甯哥敤鐨勬暟鎹寲鎺樻妧鏈繘琛岃鏄庛?BR>
銆銆1銆?鍐崇瓥鏍戝綊綰蟲柟娉?BR>
銆銆鍦ㄦ暟鎹寲鎺樹腑鏈甯鎬嬌鐢ㄧ殑鏂規(guī)硶灝辨槸鍐崇瓥鏍戞柟娉?瀹冨睘浜庡綊綰沖涔犳柟娉曘傚畠鐨勫熀鏈兂娉曟槸錛氱粰涓緇勭敤灞炴ф弿榪扮殑璁粌渚嬶紝鐒跺悗鎸夊睘鎬э紙鍊鹼級鏋勯犱竴媯墊爲錛堜簩鍙夋垨澶氬弶鏍戯級錛屼粠鏍硅妭鐐瑰埌鍙惰妭鐐逛竴鏉¤鍒欙紝鍙惰妭鐐瑰氨鏄竴涓被錛岀敱榪欐5鏍戯紙鎴栫敱榪欐5鏍戝艦鎴愮殑瑙勫垯闆嗭級瀵瑰彟涓緇勬祴璇曚緥榪涜鍒嗙被錛堟垨錛夐嫻嬨傝繖媯墊爲灝辨槸鐭ヨ瘑銆?BR>
銆銆鍐崇瓥鏍戝綊綰蟲柟娉曚富瑕佹湁涓や釜闂錛氫竴鏄厛浠庡摢涓灞炴у線涓嬪垎鍙夛紝鏃㈢壒寰侀夋嫨闂錛堟垨縐板亸鍚戦棶棰橈級錛屼簩鏄浣曟瀯閫犱竴媯?濂?鐨勬爲錛堟爲鍓灊闂錛夈備負瑙e喅鍓嶄竴闂鐮旂┒鍑鴻澶氭柟娉曪紱鏈鏈変唬琛ㄦх殑鏄痠d3錛堟敼榪涚殑c4.5, c5.0錛夛紝璇ユ柟娉曠敤淇℃伅鐔墊潵鎵懼嚭鏈澶у鐩?gain most information)浣滀負鏋勯犳爲鐨勪緷鎹傚壀鏋濅竴鑸鏉ユ湁涓ょ絳栫暐錛氬悜鍓嶅壀鏋濓紙forward pruning錛夊拰鍚戝悗鍓灊錛坆ackward pruning錛夈傝澶氫漢緇欏嚭鍚勭鍓灊鏂規(guī)硶錛岀┒绔熼噰鐢ㄤ粈涔堝壀鏋濇硶錛岃闂鑰屽畾銆?BR>
銆銆鍐崇瓥鏍戞柟娉曠殑浼樼偣鏄熷害蹇紝鐩磋鍙悊瑙o紝鎵浠ヨ騫挎硾閲囩敤錛屼絾鐢變簬瀹冩槸褰掔撼瀛︿範鏂規(guī)硶錛屽畠鏈変袱涓急鐐癸細鏍戜笉鍞竴涓斾笉姘哥湡銆備竴鑸潵璇寸簿搴︿篃涓嶅お楂樸備負浜嗘彁楂樼簿搴︼紝榪戝勾鏉ュ彂灞曡搗鏉ョ殑bagging鍜宐oosting 鏂規(guī)硶鍙栧緱杈冨ソ鐨勬晥鏋溿傚湪閫夋嫨鐗瑰緛涓婁篃鏈変漢鎻愬嚭淇℃伅鐔典箣澶栫殑鏂規(guī)硶錛屼篃鏈変漢鎻愬嚭澶氬睘鎬ф柟娉曪紝鏍戝線涓嬪垎鍙変笉鏄敤涓涓睘鎬э紝鑰岀敤澶氫釜灞炴э紝鏃㈠灞炴э紙鍙橀噺錛夊喅絳栨爲銆?BR>
銆銆2銆?鍏寵仈瑙勫垯鐨勫彂鐜?BR>
銆銆鍏寵仈瑙勫垯鎸栨帢闂鐨勬彁鍑猴細鍦ㄥぇ鍨嬮浂鍞晢搴楁垨瓚呯駭甯傚満錛屽瓨鍌ㄤ簡澶ч噺鐨勯攢鍞褰曪紝榪欎簺閿鍞褰曞張縐頒負璐х鏁版嵁錛坆asket data錛夈傝揣綃暟鎹繚瀛樹簡欏懼鍦ㄤ竴嬈¤喘涔頒腑鎵娑夊強鐨勫晢鍝佺殑璇︽儏錛堝鍟嗗搧鍚嶇О銆佷環(huán)鏍箋佹暟閲忕瓑錛夛紝鎴戜滑縐頒箣涓轟簨鍔°傛暟鎹簱浠呭瓨澶ч噺鐨勪簨鍔★紝鍐崇瓥鑰呬滑鎯充粠榪欎簺鏁版嵁涓彂鐜版湁鐢ㄧ殑淇℃伅錛屾寚瀵間粬浠殑钀ラ攢媧誨姩銆傚湪榪欐牱鐨勫簲鐢ㄨ儗鏅笅錛屼駭鐢熶簡鍏寵仈瑙勫垯鎸栨帢綆楁硶錛岀敤鏉ヤ粠浜嬪姟鏁版嵁搴撲腑鍙戠幇鏈夊叧瀹㈡埛璐拱琛屼負鐨勭煡璇嗭紝欏懼璐拱涓浜涘晢鍝佷笌鍙︿竴浜涘晢鍝佺殑鍏崇郴錛岀О涔嬩負鍏寵仈瑙勫垯銆備互鍚庡叧鑱旇鍒欏張琚箍娉涘簲鐢ㄥ埌鍏朵粬棰嗗煙銆傚湪姝ゆ垜浠粙緇嶅叧鑱旇鍒欑殑涓浜涘畾涔夛紝瀵圭畻娉曚笉浣滀粙緇嶃?BR>
銆銆瀹氫箟1錛氬叧鑱旇鍒欐寲鎺樼殑浜嬪姟鏁版嵁搴撲負d錛?d涓殑姣忎釜鍏冪粍錛堢邯褰曪級縐頒負浜嬪姟t錛宒涓墍鏈夊睘鎬хО欏圭洰闆唅錛宨={i1,i2,...im} i 鏄竴涓」鐩?m鏄痙涓殑鎵鏈夐」鐩暟, 涓鏉′簨鍔鏄痠涓」鐩殑闆嗗悎錛屽嵆t i銆?BR>
銆銆瀹氫箟2: 浠繪剰鐨勯」鐩泦x鍜屼簨鍔鑻ユ弧瓚籌細t x錛屽垯縐頒簨鍔鍖呭惈欏圭洰闆唜銆?BR>
銆銆浠繪剰鐨勯」鐩泦y鍜屼簨鍔鑻ユ弧瓚籌細t y 錛屽垯縐頒簨鍔鍖呭惈欏圭洰闆唝 銆?BR>
銆銆鍦ㄨ秴綰у競鍦虹殑鍏寵仈瑙勫垯鎸栨帢闂涓」鐩泦鍙互鐪嬫垚涓涓垨澶氫釜鍟嗗搧鐨勯泦鍚堬紝涓庢煇欏懼涓嬈¤喘涔板搴旂殑浜嬪姟t鍖呭惈欏圭洰闆唜(鎴杫)錛屼篃灝辨槸璇磋欏懼鍦ㄨ繖嬈¤喘鐗╀腑璐拱浜嗛」鐩泦x(鎴杫)涓殑鎵鏈夊晢鍝併?BR>
銆銆瀹氫箟3: 鍏寵仈瑙勫垯鏄艦濡倄 y鐨勮鍒欙紝鍏朵腑x銆亂涓洪」鐩泦涓攛鈭﹜= 銆?BR>
銆銆琛ㄧず欏懼涓喘涔頒簡x涓殑鎵鏈夊晢鍝侊紝鍙堣喘涔頒簡y涓殑鎵鏈夊晢鍝併?BR>
銆銆瀹氫箟4:鑻ユ暟鎹簱d涓? s%鐨勪簨鍔″寘鍚玿鈭獃鍒欏叧鑱旇鍒檟 y鐨勬敮鎸佺巼涓簊%錛涜嫢鍖呭惈欏圭洰闆唜鐨勪簨鍔℃湁c%鐨勪篃鍖呭惈欏圭洰闆唝錛屽垯鍏寵仈瑙勫垯x y鐨勭疆淇″害涓篶%銆?BR>
銆銆3銆?綺楃硻闆?rough set)鐞嗚
銆銆綺楃硻闆?rough set)鐞嗚鏄竴縐嶆柊鍨嬬殑澶勭悊妯$硦鍜屼笉紜畾鐭ヨ瘑鐨勬暟瀛﹀伐鍏楓傝嚜1982騫寸敱娉㈠叞鏁板瀹秔awlak棣栨鎻愬嚭浠ユ潵錛岀粡榪囧崄鍑犲勾鐨勭爺絀朵笌鍙戝睍錛屽凡緇忓湪鐞嗚鍜屽疄闄呭簲鐢ㄤ笂鍙栧緱浜嗛暱瓚崇殑榪涘睍錛岀壒鍒槸鐢變簬鍏崄騫翠唬鏈拰涔?jié)鍗侐q翠唬鍒濆湪鐭ヨ瘑鍙戠幇絳夐鍩熷緱鍒頒簡鎴愬姛鐨勫簲鐢ㄨ屽彈鍒板浗闄呬笂騫挎硾鍏蟲敞銆傜洰鍓嶏紝瀹冨凡緇忓湪浜哄伐鏅鴻兘銆佺煡璇嗗彂鐜般佹ā寮忚瘑鍒笌鍒嗙被銆佹晠闅滄嫻嬬瓑鏂歸潰寰楀埌浜嗚緝涓烘垚鍔熺殑搴旂敤銆傜矖緋欓泦鐞嗚鍏鋒湁涓浜涚嫭鐗圭殑瑙傜偣錛岃繖浜涜鐐逛嬌寰楃矖緋欓泦鐗瑰埆閫傚悎浜庤繘琛屾暟鎹垎鏋愩?綺楃硻闆嗙悊璁鴻涓虹煡璇嗙殑綺掑害鎬ф槸閫犳垚浣跨敤宸叉湁鐭ヨ瘑涓嶈兘綺劇‘鍦拌〃紺烘煇浜涙蹇電殑鍘熷洜銆?閫氳繃寮曞叆涓嶅彲鍖哄垎鍏崇郴浣滀負綺楃硻闆嗙悊璁虹殑鍩虹, 騫跺湪姝ゅ熀紜涓婂畾涔変簡涓婁笅榪戜技絳夋蹇? 綺楃硻闆嗙悊璁鴻兘澶熸湁鏁堝湴閫艱繎榪欎簺涓嶇簿紜蹇點傛湁浜嗕笂銆佷笅榪戜技鍜屼笉鍙垎鍏崇郴鐨勬蹇墊垜浠氨鑳藉瀹氫箟綰︾畝鍜屾牳榪欎袱涓kdd鏈夊緢澶т綔鐢ㄧ殑姒傚康銆傚拰妯$硦闆嗗悎闇瑕佹寚瀹氭垚鍛橀毝灞炲害涓嶅悓, 綺楃硻闆嗙殑鎴愬憳鏄瑙傝綆楃殑, 鍙拰宸茬煡鏁版嵁鏈夊叧, 浠庤岄伩鍏嶄簡涓昏鍥犵礌鐨勫獎鍝嶃?BR>
銆銆4銆?璐濆彾鏂綉緇?BR>
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