鏈哄櫒瀛︿範鈥斺€斿簲鐢ㄥ満鏅? 绠楁硶搴旂敤鍦烘櫙

Posted 2022-04-28

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甯歌鐨勬満鍣ㄥ涔犳ā鍨嬶細鎰熺煡鏈猴紝绾挎€у洖褰掞紝閫昏緫鍥炲綊锛屾敮鎸佸悜閲忔満锛屽喅绛栨爲锛岄殢鏈烘．鏋楋紝GBDT锛孹GBoost锛岃礉鍙舵柉锛孠NN锛孠-means绛夛紱

甯歌鐨勬満鍣ㄥ涔犵悊璁猴細杩囨嫙鍚堥棶棰橈紝浜ゅ弶楠岃瘉闂锛屾ā鍨嬮€夋嫨闂锛屾ā鍨嬭瀺鍚堥棶棰樼瓑锛?/p>

K杩戦偦锛氱畻娉曢噰鐢ㄦ祴閲忎笉鍚岀壒寰佸€间箣闂寸殑璺濈鐨勬柟娉曡繘琛屽垎绫汇€?

浼樼偣锛?/p>

1.绠€鍗曞ソ鐢紝瀹规槗鐞嗚В锛岀簿搴﹂珮锛岀悊璁烘垚鐔燂紝鏃㈠彲浠ョ敤鏉ュ仛鍒嗙被涔熷彲浠ョ敤鏉ュ仛鍥炲綊锛?/p>

2.鍙敤浜庢暟鍊煎瀷鏁版嵁鍜岀鏁ｅ瀷鏁版嵁锛?/p>

3.璁粌鏃堕棿澶嶆潅搴︿负O(n)锛涙棤鏁版嵁杈撳叆鍋囧畾锛?/p>

4.瀵瑰紓甯稿€间笉鏁忔劅

缂虹偣锛?/p>

1.璁＄畻澶嶆潅鎬ч珮锛涚┖闂村鏉傛€ч珮锛?/p>

2.鏍锋湰涓嶅钩琛￠棶棰橈紙鍗虫湁浜涚被鍒殑鏍锋湰鏁伴噺寰堝锛岃€屽叾瀹冩牱鏈殑鏁伴噺寰堝皯锛夛紱

3.涓€鑸暟鍊煎緢澶х殑鏃跺€欎笉鐢ㄨ繖涓紝璁＄畻閲忓お澶с€備絾鏄崟涓牱鏈張涓嶈兘澶皯 鍚﹀垯瀹规槗鍙戠敓璇垎銆?/p>

4.鏈€澶х殑缂虹偣鏄棤娉曠粰鍑烘暟鎹殑鍐呭湪鍚箟銆?/p>

鏈寸礌璐濆彾鏂?/strong>

浼樼偣锛?/p>

1.鐢熸垚寮忔ā鍨嬶紝閫氳繃璁＄畻姒傜巼鏉ヨ繘琛屽垎绫伙紝鍙互鐢ㄦ潵澶勭悊澶氬垎绫婚棶棰橈紝

2.瀵瑰皬瑙勬ā鐨勬暟鎹〃鐜板緢濂斤紝閫傚悎澶氬垎绫讳换鍔★紝閫傚悎澧為噺寮忚缁冿紝绠楁硶涔熸瘮杈冪畝鍗曘€?/p>

缂虹偣锛?/p>

1.瀵硅緭鍏ユ暟鎹殑琛ㄨ揪褰㈠紡寰堟晱鎰燂紝

2.鐢变簬鏈寸礌璐濆彾鏂殑“鏈寸礌”鐗圭偣锛屾墍浠ヤ細甯︽潵涓€浜涘噯纭巼涓婄殑鎹熷け銆?span class="RichText CopyrightRichText-richText">闇€瑕佷竴涓瘮杈冨鏄撹В閲婏紝鑰屼笖涓嶅悓缁村害涔嬮棿鐩稿叧鎬ц緝灏忕殑妯″瀷鐨勬椂鍊欍€?/span>

3.闇€瑕佽绠楀厛楠屾鐜囷紝鍒嗙被鍐崇瓥瀛樺湪閿欒鐜囥€?/p>

鍐崇瓥鏍?/strong>

浼樼偣锛?/p>

1.姒傚康绠€鍗曪紝璁＄畻澶嶆潅搴︿笉楂橈紝鍙В閲婃€у己锛岃緭鍑虹粨鏋滄槗浜庣悊瑙ｏ紱

2.鏁版嵁鐨勫噯澶囧伐浣滅畝鍗曪紝 鑳藉鍚屾椂澶勭悊鏁版嵁鍨嬪拰甯歌鍨嬪睘鎬э紝鍏朵粬鐨勬妧鏈線寰€瑕佹眰鏁版嵁灞炴€х殑鍗曚竴銆?/p>

3.瀵逛腑闂村€煎緱纭疄涓嶆晱鎰燂紝姣旇緝閫傚悎澶勭悊鏈夌己澶卞睘鎬у€肩殑鏍锋湰锛岃兘澶熷鐞嗕笉鐩稿叧鐨勭壒寰侊紱

4.搴旂敤鑼冨洿骞匡紝鍙互瀵瑰緢澶氬睘鎬х殑鏁版嵁闆嗘瀯閫犲喅绛栨爲锛屽彲鎵╁睍鎬у己銆傚喅绛栨爲鍙互鐢ㄤ簬涓嶇啛鎮夌殑鏁版嵁闆嗗悎锛屽苟浠庝腑鎻愬彇鍑轰竴浜涘垪瑙勫垯 杩欎竴鐐瑰己浜嶬NN銆?/p>

缂虹偣锛?/em>

1.瀹规槗鍑虹幇杩囨嫙鍚堬紱

2.瀵逛簬閭ｄ簺鍚勭被鍒牱鏈暟閲忎笉涓€鑷寸殑鏁版嵁锛屽湪鍐崇瓥鏍戝綋涓?淇℃伅澧炵泭鐨勭粨鏋滃亸鍚戜簬閭ｄ簺鍏锋湁鏇村鏁板€肩殑鐗瑰緛銆?/p>

3. 淇℃伅缂哄け鏃跺鐞嗚捣鏉ユ瘮杈冨洶闅俱€?蹇界暐鏁版嵁闆嗕腑灞炴€т箣闂寸殑鐩稿叧鎬с€?/p>

4.鍚屾椂瀹冧篃鏄浉瀵瑰鏄撹鏀诲嚮鐨勫垎绫诲櫒銆傝繖閲岀殑鏀诲嚮鏄寚浜轰负鐨勬敼鍙樹竴浜涚壒寰侊紝浣垮緱鍒嗙被鍣ㄥ垽鏂敊璇?/span>

闅忔満妫灄

涓ユ牸鏉ヨ锛岄殢鏈烘．鏋楀叾瀹炵畻鏄竴绉嶉泦鎴愮畻娉曘€傚畠棣栧厛闅忔満閫夊彇涓嶅悓鐨勭壒寰?feature)鍜岃缁冩牱鏈?training sample)锛岀敓鎴愬ぇ閲忕殑鍐崇瓥鏍戯紝鐒跺悗缁煎悎杩欎簺鍐崇瓥鏍戠殑缁撴灉鏉ヨ繘琛屾渶缁堢殑鍒嗙被銆?/p>

闅忔満妫灄鍦ㄧ幇瀹炲垎鏋愪腑琚ぇ閲忎娇鐢紝瀹冪浉瀵逛簬鍐崇瓥鏍戯紝鍦ㄥ噯纭€т笂鏈変簡寰堝ぇ鐨勬彁鍗囷紝鍚屾椂涓€瀹氱▼搴︿笂鏀瑰杽浜嗗喅绛栨爲瀹规槗琚敾鍑荤殑鐗圭偣銆?/p>

閫傜敤鎯呮櫙锛?/p>

鏁版嵁缁村害鐩稿浣庯紙鍑犲崄缁达級锛屽悓鏃跺鍑嗙‘鎬ф湁杈冮珮瑕佹眰鏃躲€?/p>

鍥犱负涓嶉渶瑕佸緢澶氬弬鏁拌皟鏁村氨鍙互杈惧埌涓嶉敊鐨勬晥鏋滐紝鍩烘湰涓婁笉鐭ラ亾鐢ㄤ粈涔堟柟娉曠殑鏃跺€欓兘鍙互鍏堣瘯涓€涓嬮殢鏈烘．鏋椼€?/p>

Svm

浼樼偣锛?/p>

1.鍙敤浜庣嚎鎬?闈炵嚎鎬у垎绫伙紝涔熷彲浠ョ敤浜庡洖褰掞紝娉涘寲閿欒鐜囦綆锛岃绠楀紑閿€涓嶅ぇ锛岀粨鏋滃鏄撹В閲婏紱

2.鍙互瑙ｅ喅灏忔牱鏈儏鍐典笅鐨勬満鍣ㄥ涔犻棶棰橈紝鍙互瑙ｅ喅楂樼淮闂 鍙互閬垮厤绁炵粡缃戠粶缁撴瀯閫夋嫨鍜屽眬閮ㄦ瀬灏忕偣闂銆?/p>

3.SVM鏄渶濂界殑鐜版垚鐨勫垎绫诲櫒锛岀幇鎴愭槸鎸囦笉鍔犱慨鏀瑰彲鐩存帴浣跨敤銆傚苟涓旇兘澶熷緱鍒拌緝浣庣殑閿欒鐜囷紝SVM鍙互瀵硅缁冮泦涔嬪鐨勬暟鎹偣鍋氬緢濂界殑鍒嗙被鍐崇瓥銆?/p>

4.SVM灏介噺淇濇寔涓庢牱鏈棿璺濈鐨勬€ц川瀵艰嚧瀹冩姉鏀诲嚮鐨勮兘鍔涙洿寮恒€?/span>

缂虹偣锛氬鍙傛暟璋冭妭鍜屽拰鍑芥暟鐨勯€夋嫨鏁忔劅锛屽師濮嬪垎绫诲櫒涓嶅姞淇敼浠呴€傜敤浜庡鐞嗕簩鍒嗙被闂銆?/p>

Logistic鍥炲綊锛氭牴鎹幇鏈夋暟鎹鍒嗙被杈圭晫绾垮缓绔嬪洖褰掑叕寮忥紝渚濇杩涜鍒嗙被銆?/p>

浼樼偣锛氬疄鐜扮畝鍗曪紝鏄撲簬鐞嗚В鍜屽疄鐜帮紱璁＄畻浠ｄ环涓嶉珮锛岄€熷害寰堝揩锛屽瓨鍌ㄨ祫婧愪綆锛?/p>

缂虹偣锛氬鏄撴瑺鎷熷悎锛屽垎绫荤簿搴﹀彲鑳戒笉楂?/p>

EM 鏈熸湜鏈€澶у寲绠楁硶-涓婂笣绠楁硶

鍙鏈変竴浜涜缁冩暟鎹紝鍐嶅畾涔変竴涓渶澶у寲鍑芥暟锛岄噰鐢‥M绠楁硶锛屽埄鐢ㄨ绠楁満缁忚繃鑻ュ共娆¤凯浠ｏ紝灏卞彲浠ュ緱鍒版墍闇€鐨勬ā鍨嬨€侲M绠楁硶鏄嚜鏀舵暃鐨勫垎绫荤畻娉曪紝鏃笉闇€瑕佷簨鍏堣瀹氱被鍒篃涓嶉渶瑕佹暟鎹鐨勪袱涓ゆ瘮杈冨悎骞剁瓑鎿嶄綔銆傜己鐐规槸褰撴墍瑕佷紭鍖栫殑鍑芥暟涓嶆槸鍑稿嚱鏁版椂锛孍M绠楁硶瀹规槗缁欏嚭灞€閮ㄦ渶浣宠В锛岃€屼笉鏄渶浼樿В銆?/p>

鍒ゅ埆鍒嗘瀽 (Discriminant analysis)

LDA鐨勬牳蹇冩€濇兂鏄妸楂樼淮鐨勬牱鏈姇灏?project)鍒颁綆缁翠笂锛屽鏋滆鍒嗘垚涓ょ被锛屽氨鎶曞皠鍒颁竴缁淬€傝鍒嗕笁绫诲氨鎶曞皠鍒颁簩缁村钩闈笂銆傝繖鏍风殑鎶曞皠褰撶劧鏈夊緢澶氱涓嶅悓鐨勬柟寮忥紝LDA鎶曞皠鐨勬爣鍑嗗氨鏄鍚岀被鐨勬牱鏈敖閲忛潬杩戯紝鑰屼笉鍚岀被鐨勫敖閲忓垎寮€銆傚浜庢湭鏉ヨ棰勬祴鐨勬牱鏈紝鐢ㄥ悓鏍风殑鏂瑰紡鎶曞皠涔嬪悗灏卞彲浠ヨ交鏄撳湴鍒嗚鲸绫诲埆浜嗐€?/div>

浣跨敤鎯呮櫙锛?/p>

鍒ゅ埆鍒嗘瀽閫傜敤浜庨珮缁存暟鎹渶瑕侀檷缁寸殑鎯呭喌锛岃嚜甯﹂檷缁村姛鑳戒娇寰楁垜浠兘鏂逛究鍦拌瀵熸牱鏈垎甯冦€傚畠鐨勬纭€ф湁鏁板鍏紡鍙互璇佹槑锛屾墍浠ュ悓鏍锋槸寰堢粡寰椾綇鎺ㄦ暡鐨勬柟寮忋€?/p>

浣嗘槸瀹冪殑鍒嗙被鍑嗙‘鐜囧線寰€涓嶆槸寰堥珮锛屾墍浠ヤ笉鏄粺璁＄郴鐨勪汉灏辨妸瀹冧綔涓洪檷缁村伐鍏风敤鍚с€?/p>

鍚屾椂娉ㄦ剰瀹冩槸鍋囧畾鏍锋湰鎴愭鎬佸垎甯冪殑锛屾墍浠ラ偅绉嶅悓蹇冨渾褰㈢殑鏁版嵁灏变笉瑕佸皾璇曚簡銆?/p>

鏇村鍒嗘瀽瑙?nbsp;https://www.zhihu.com/question/26726794

涓嬭竟杩欎釜杞嚜http://www.ppvke.com/Blog/archives/44028

 

鏈哄櫒 瀛︿範甯歌绠楁硶

 

鏈哄櫒瀛︿範棰嗗煙娑夊強鍒板緢澶氱殑绠楁硶鍜屾ā鍨嬶紝杩欓噷閬撮€変竴浜涘父瑙佺殑绠楁硶锛?/p>

 

• 姝ｅ垯鍖栫畻娉曪紙Regularization Algorithms锛?/li>
• 闆嗘垚绠楁硶锛圗nsemble Algorithms锛?/li>
• 鍐崇瓥鏍戠畻娉曪紙Decision Tree Algorithm锛?/li>
• 鍥炲綊锛圧egression锛?/li>
• 浜哄伐绁炵粡缃戠粶锛圓rtificial Neural Network锛?/li>
• 娣卞害瀛︿範锛圖eep Learning锛?/li>
• 鏀寔鍚戦噺鏈猴紙Support Vector Machine锛?/li>
• 闄嶇淮绠楁硶锛圖imensionality Reduction Algorithms锛?/li>
• 鑱氱被绠楁硶锛圕lustering Algorithms锛?/li>
• 鍩轰簬瀹炰緥鐨勭畻娉曪紙Instance-based Algorithms锛?/li>
• 璐濆彾鏂畻娉曪紙Bayesian Algorithms锛?/li>
• 鍏宠仈瑙勫垯瀛︿範绠楁硶锛圓ssociation Rule Learning Algorithms锛?/li>
• 鍥炬ā鍨嬶紙Graphical Models锛?### 姝ｅ垯鍖栫畻娉曪紙Regularization Algorithms锛?姝ｅ垯鍖栫畻娉曟槸鍙︿竴绉嶆柟娉曪紙閫氬父鏄洖褰掓柟娉曪級鐨勬嫇灞曪紝杩欑鏂规硶浼氬熀浜庢ā鍨嬪鏉傛€у鍏惰繘琛屾儵缃氾紝瀹冨枩娆㈢浉瀵圭畝鍗曡兘澶熸洿濂界殑娉涘寲鐨勬ā鍨嬨€?姝ｅ垯鍖栦腑鎴戜滑灏嗕繚鐣欐墍鏈夌殑鐗瑰緛鍙橀噺锛屼絾鏄細鍑忓皬鐗瑰緛鍙橀噺鐨勬暟閲忕骇锛堝弬鏁版暟鍊肩殑澶у皬θ(j)锛夈€傝繖涓柟娉曢潪甯告湁鏁堬紝褰撴垜浠湁寰堝鐗瑰緛鍙橀噺鏃讹紝鍏朵腑姣忎竴涓彉閲忛兘鑳藉棰勬祴浜х敓涓€鐐瑰奖鍝嶃€?绠楁硶瀹炰緥锛?/li>
• 宀洖褰掞紙Ridge Regression锛?/li>
• 鏈€灏忕粷瀵规敹缂╀笌閫夋嫨绠楀瓙锛圠ASSO锛?/li>
• GLASSO
• 寮规€х綉缁滐紙Elastic Net锛?/li>
• 鏈€灏忚鍥炲綊锛圠east-Angle Regression锛?璇﹁В閾炬帴锛?a title="" href="http://www.ppvke.com/Blog/archives/44217" data-original-title="">鏈哄櫒瀛︿範涔嬫鍒欏寲绠楁硶

 

闆嗘垚绠楁硶锛圗nsemble algorithms锛?/h2>

 

闆嗘垚鏂规硶鏄敱澶氫釜杈冨急鐨勬ā鍨嬮泦鎴愭ā鍨嬬粍锛屽叾涓殑妯″瀷鍙互鍗曠嫭杩涜璁粌锛屽苟涓斿畠浠殑棰勬祴鑳戒互鏌愮鏂瑰紡缁撳悎璧锋潵鍘诲仛鍑轰竴涓€讳綋棰勬祴銆傝繖绫荤畻娉曞張绉板厓绠楁硶(meta-algorithm)銆傛渶甯歌鐨勯泦鎴愭€濇兂鏈変袱绉峛agging鍜宐oosting銆?/p>

 

boosting
鍩轰簬閿欒鎻愬崌鍒嗙被鍣ㄦ€ц兘锛岄€氳繃闆嗕腑鍏虫敞琚凡鏈夊垎绫诲櫒鍒嗙被閿欒鐨勬牱鏈紝鏋勫缓鏂板垎绫诲櫒骞堕泦鎴愩€?br />bagging
鍩轰簬鏁版嵁闅忔満閲嶆娊鏍风殑鍒嗙被鍣ㄦ瀯寤烘柟娉曘€?/p>

 

绠楁硶瀹炰緥锛?/p>

 

• Boosting
• Bootstrapped Aggregation锛圔agging锛?/li>
• AdaBoost
• 灞傚彔娉涘寲锛圫tacked Generalization锛夛紙blending锛?/li>
• 姊害鎺ㄨ繘鏈猴紙Gradient Boosting Machines锛孏BM锛?/li>
• 姊害鎻愬崌鍥炲綊鏍戯紙Gradient Boosted Regression Trees锛孏BRT锛?/li>
• 闅忔満妫灄锛圧andom Forest锛?鎬荤粨锛氬綋鍏堟渶鍏堣繘鐨勯娴嬪嚑涔庨兘浣跨敤浜嗙畻娉曢泦鎴愩€傚畠姣斾娇鐢ㄥ崟涓ā鍨嬮娴嬪嚭鏉ョ殑缁撴灉瑕佺簿纭殑澶氥€備絾鏄绠楁硶闇€瑕佸ぇ閲忕殑缁存姢宸ヤ綔銆?璇︾粏璁茶В锛?a title="" href="http://www.ppvke.com/Blog/archives/44268" data-original-title="">鏈哄櫒瀛︿範绠楁硶涔嬮泦鎴愮畻娉?/a> ### 鍐崇瓥鏍戠畻娉曪紙Decision Tree Algorithm锛?鍐崇瓥鏍戝涔犱娇鐢ㄤ竴涓喅绛栨爲浣滀负涓€涓娴嬫ā鍨嬶紝瀹冨皢瀵逛竴涓?item锛堣〃寰佸湪鍒嗘敮涓婏級瑙傚療鎵€寰楁槧灏勬垚鍏充簬璇?item 鐨勭洰鏍囧€肩殑缁撹锛堣〃寰佸湪鍙跺瓙涓級銆?鍐崇瓥鏍戦€氳繃鎶婂疄渚嬩粠鑹妭鐐规帓鍒楀埌鏌愪釜鍙跺瓙缁撶偣鏉ュ垎绫诲疄渚嬶紝鍙跺瓙缁撶偣鍗充负瀹炰緥鎵€灞炵殑鍒嗙被銆傛爲涓婄殑姣忎竴涓粨鐐规寚瀹氫簡瀵瑰疄渚嬬殑鏌愪釜灞炴€х殑娴嬭瘯锛屽苟涓旇缁撶偣鐨勬瘡涓€涓悗缁у垎鏀搴斾簬璇ュ睘鎬х殑涓€涓彲鑳藉€笺€傚垎绫诲疄渚嬬殑鏂规硶鏄粠杩欐５鏍戠殑鏍硅妭鐐瑰紑濮嬶紝娴嬭瘯杩欎釜缁撶偣鐨勫睘鎬э紝鐒跺悗鎸夌収缁欏畾瀹炰緥鐨勫睘鎬у€煎搴旂殑鏍戞灊鍚戜笅绉诲姩銆傜劧鍚庤繖涓繃绋嬪湪浠ユ柊缁撶偣鐨勬牴鐨勫瓙鏍戜笂閲嶅銆?绠楁硶瀹炰緥锛?/li>
• 鍒嗙被鍜屽洖褰掓爲锛圕lassification and Regression Tree锛孋ART锛?/li>
• Iterative Dichotomiser 3锛圛D3锛?/li>
• C4.5 鍜?C5.0锛堜竴绉嶅己澶ф柟娉曠殑涓や釜涓嶅悓鐗堟湰锛?璇﹁В锛?a title="" href="http://www.ppvke.com/Blog/archives/44548" data-original-title="">鏈哄櫒瀛︿範绠楁硶涔嬪喅绛栨爲绠楁硶

 

鍥炲綊锛圧egression锛夌畻娉?/h2>

 

鍥炲綊鏄敤浜庝及璁′袱绉嶅彉閲忎箣闂村叧绯荤殑缁熻杩囩▼銆傚綋鐢ㄤ簬鍒嗘瀽鍥犲彉閲忓拰涓€涓?澶氫釜鑷彉閲忎箣闂寸殑鍏崇郴鏃讹紝璇ョ畻娉曡兘鎻愪緵寰堝寤烘ā鍜屽垎鏋愬涓彉閲忕殑鎶€宸с€傚叿浣撲竴鐐硅锛屽洖褰掑垎鏋愬彲浠ュ府鍔╂垜浠悊瑙ｅ綋浠绘剰涓€涓嚜鍙橀噺鍙樺寲锛屽彟涓€涓嚜鍙橀噺涓嶅彉鏃讹紝鍥犲彉閲忓彉鍖栫殑鍏稿瀷鍊笺€傛渶甯歌鐨勬槸锛屽洖褰掑垎鏋愯兘鍦ㄧ粰瀹氳嚜鍙橀噺鐨勬潯浠朵笅浼拌鍑哄洜鍙橀噺鐨勬潯浠舵湡鏈涖€?/p>

 

绠楁硶瀹炰緥锛?/p>

 

• 鏅€氭渶灏忎簩涔樺洖褰掞紙Ordinary Least Squares Regression锛孫LSR锛?/li>
• 绾挎€у洖褰掞紙Linear Regression锛?/li>
• 閫昏緫鍥炲綊锛圠ogistic Regression锛?/li>
• 閫愭鍥炲綊锛圫tepwise Regression锛?/li>
• 澶氬厓鑷€傚簲鍥炲綊鏍锋潯锛圡ultivariate Adaptive Regression Splines锛孧ARS锛?/li>
• 鏈湴鏁ｇ偣骞虫粦浼拌锛圠ocally Estimated Scatterplot Smoothing锛孡OESS锛?/li>

 

鍥炲綊绠楁硶璇﹁В锛?a title="" href="http://www.ppvke.com/Blog/archives/44570" data-original-title="">鏈哄櫒瀛︿範绠楁硶涔嬪洖褰掔畻娉?/a>

 

浜哄伐绁炵粡缃戠粶

 

浜哄伐绁炵粡缃戠粶鏄彈鐢熺墿绁炵粡缃戠粶鍚彂鑰屾瀯寤虹殑绠楁硶妯″瀷銆傚畠鏄竴绉嶆ā寮忓尮閰嶏紝甯歌鐢ㄤ簬鍥炲綊鍜屽垎绫婚棶棰橈紝浣嗘嫢鏈夊簽澶х殑瀛愬煙锛岀敱鏁扮櫨绉嶇畻娉曞拰鍚勭被闂鐨勫彉浣撶粍鎴愩€?br />浜哄伐绁炵粡缃戠粶锛圓NN锛夋彁渚涗簡涓€绉嶆櫘閬嶈€屼笖瀹為檯鐨勬柟娉曚粠鏍蜂緥涓涔犲€间负瀹炴暟銆佺鏁ｅ€兼垨鍚戦噺鍑芥暟銆備汉宸ョ缁忕綉缁滅敱涓€绯诲垪绠€鍗曠殑鍗曞厓鐩镐簰杩炴帴鏋勬垚锛屽叾涓瘡涓崟鍏冩湁涓€瀹氭暟閲忕殑瀹炲€艰緭鍏ワ紝骞朵骇鐢熷崟涓€鐨勫疄鍊艰緭鍑恒€?br />绠楁硶瀹炰緥锛?/p>

 

• 鎰熺煡鍣?/li>
• 鍙嶅悜浼犳挱
• Hopfield 缃戠粶
• 寰勫悜鍩哄嚱鏁扮綉缁滐紙Radial Basis Function Network锛孯BFN锛?/li>

 

璇︾粏閾炬帴锛?a title="" href="http://www.ppvke.com/Blog/archives/44714" data-original-title="">鏈哄櫒瀛︿範绠楁硶涔嬩汉宸ョ缁忕綉缁?/a>

 

娣卞害瀛︿範锛圖eep Learning锛?/h2>

 

娣卞害瀛︿範鏄汉宸ョ缁忕綉缁滅殑鏈€鏂板垎鏀紝瀹冨彈鐩婁簬褰撲唬纭欢鐨勫揩閫熷彂灞曘€?br />浼楀鐮旂┒鑰呯洰鍓嶇殑鏂瑰悜涓昏闆嗕腑浜庢瀯寤烘洿澶с€佹洿澶嶆潅鐨勭缁忕綉缁滐紝鐩墠鏈夎澶氭柟娉曟鍦ㄨ仛鐒﹀崐鐩戠潱瀛︿範闂锛屽叾涓敤浜庤缁冪殑澶ф暟鎹泦鍙寘鍚緢灏戠殑鏍囪銆?/p>

 

绠楁硶瀹炰緥锛?/p>

 

• 娣辩幓鑰冲吂鏇兼満锛圖eep Boltzmann Machine锛孌BM锛?/li>
• Deep Belief Networks锛圖BN锛?/li>
• 鍗风Н绁炵粡缃戠粶锛圕NN锛?/li>
• Stacked Auto-Encoders

 

娣卞害瀛︿範璇﹁В锛?a title="" href="http://www.ppvke.com/Blog/archives/44748" data-original-title="">鏈哄櫒瀛︿範绠楁硶涔嬫繁搴﹀涔?/a>

 

鏀寔鍚戦噺鏈猴紙Support Vector Machines锛?/h2>

 

鏀寔鍚戦噺鏈?/strong>鏄竴绉嶇洃鐫ｅ紡瀛︿範 (Supervised Learning)鐨勬柟娉曪紝涓昏鐢ㄥ湪缁熻鍒嗙被 (Classification)闂鍜屽洖褰掑垎鏋?(Regression)闂涓娿€傛敮鎸佸悜閲忔満灞炰簬涓€鑸寲绾挎€у垎绫诲櫒锛屼篃鍙互琚涓烘槸鎻愬厠娲涘か瑙勮寖鍖栵紙Tikhonov Regularization锛夋柟娉曠殑涓€涓壒渚嬨€傝繖鏃忓垎绫诲櫒鐨勭壒鐐规槸浠栦滑鑳藉鍚屾椂鏈€灏忓寲缁忛獙璇樊涓庢渶澶у寲鍑犱綍杈圭紭鍖猴紝鍥犳鏀寔鍚戦噺鏈轰篃琚О涓烘渶澶ц竟缂樺尯鍒嗙被鍣ㄣ€傜幇鍦ㄥ绠€绉颁负SVM銆?br />缁欏畾涓€缁勮缁冧簨渚嬶紝鍏朵腑姣忎釜浜嬩緥閮藉睘浜庝袱涓被鍒腑鐨勪竴涓紝鏀寔鍚戦噺鏈猴紙SVM锛夎缁冪畻娉曞彲浠ュ湪琚緭鍏ユ柊鐨勪簨渚嬪悗灏嗗叾鍒嗙被鍒颁袱涓被鍒腑鐨勪竴涓紝浣胯嚜韬垚涓洪潪姒傜巼浜岃繘鍒剁嚎鎬у垎绫诲櫒銆?br />SVM 妯″瀷灏嗚缁冧簨渚嬭〃绀轰负绌洪棿涓殑鐐癸紝瀹冧滑琚槧灏勫埌涓€骞呭浘涓紝鐢变竴鏉℃槑纭殑銆佸敖鍙兘瀹界殑闂撮殧鍒嗗紑浠ュ尯鍒嗕袱涓被鍒€?/p>

 

绠楁硶璇﹁В锛?a title="" href="http://www.ppvke.com/Blog/archives/45183" data-original-title="">鏈哄櫒瀛︿範绠楁硶涔嬫敮鎸佸悜閲忔満

 

闄嶇淮绠楁硶锛圖imensionality Reduction Algorithms锛?/h2>

 

鎵€璋撶殑闄嶇淮灏辨槸鎸囬噰鐢ㄦ煇绉嶆槧灏勬柟娉曪紝灏嗗師楂樼淮绌洪棿涓殑鏁版嵁鐐规槧灏勫埌浣庣淮搴︾殑绌洪棿涓€傞檷缁寸殑鏈川鏄涔犱竴涓槧灏勫嚱鏁?f : x->y锛屽叾涓瓁鏄師濮嬫暟鎹偣鐨勮〃杈撅紝鐩墠鏈€澶氫娇鐢ㄥ悜閲忚〃杈惧舰寮忋€?y鏄暟鎹偣鏄犲皠鍚庣殑浣庣淮鍚戦噺琛ㄨ揪锛岄€氬父y鐨勭淮搴﹀皬浜巟鐨勭淮搴︼紙褰撶劧鎻愰珮缁村害涔熸槸鍙互鐨勶級銆俧鍙兘鏄樉寮忕殑鎴栭殣寮忕殑銆佺嚎鎬х殑鎴栭潪绾挎€х殑銆?br />杩欎竴绠楁硶鍙敤浜庡彲瑙嗗寲楂樼淮鏁版嵁鎴栫畝鍖栨帴涓嬫潵鍙敤浜庣洃鐫ｅ涔犱腑鐨勬暟鎹€傝澶氳繖鏍风殑鏂规硶鍙拡瀵瑰垎绫诲拰鍥炲綊鐨勪娇鐢ㄨ繘琛岃皟鏁淬€?/p>

 

绠楁硶瀹炰緥锛?/p>

 

• 涓绘垚鍒嗗垎鏋愶紙Principal Component Analysis (PCA)锛?/li>
• 涓绘垚鍒嗗洖褰掞紙Principal Component Regression (PCR)锛?/li>
• 鍋忔渶灏忎簩涔樺洖褰掞紙Partial Least Squares Regression (PLSR)锛?/li>
• Sammon 鏄犲皠锛圫ammon Mapping锛?/li>
• 澶氱淮灏哄害鍙樻崲锛圡ultidimensional Scaling (MDS)锛?/li>
• 鎶曞奖瀵昏釜锛圥rojection Pursuit锛?/li>
• 绾挎€у垽鍒垎鏋愶紙Linear Discriminant Analysis (LDA)锛?/li>
• 娣峰悎鍒ゅ埆鍒嗘瀽锛圡ixture Discriminant Analysis (MDA)锛?/li>
• 浜屾鍒ゅ埆鍒嗘瀽锛圦uadratic Discriminant Analysis (QDA)锛?/li>
• 鐏垫椿鍒ゅ埆鍒嗘瀽锛團lexible Discriminant Analysis (FDA)锛?/li>

 

璇﹁В閾炬帴锛?a title="" href="http://www.ppvke.com/Blog/archives/45201" data-original-title="">闄嶇淮绠楁硶

 

鑱氱被绠楁硶锛圕lustering Algorithms锛?/h2>

 

鑱氱被绠楁硶鏄寚瀵逛竴缁勭洰鏍囪繘琛屽垎绫伙紝灞炰簬鍚屼竴缁勶紙浜﹀嵆涓€涓被锛宑luster锛夌殑鐩爣琚垝鍒嗗湪涓€缁勪腑锛屼笌鍏朵粬缁勭洰鏍囩浉姣旓紝鍚屼竴缁勭洰鏍囨洿鍔犲郊姝ょ浉浼笺€?br />浼樼偣鏄鏁版嵁鍙樺緱鏈夋剰涔夛紝缂虹偣鏄粨鏋滈毦浠ヨВ璇伙紝閽堝涓嶅悓鐨勬暟鎹粍锛岀粨鏋滃彲鑳芥棤鐢ㄣ€?br />绠楁硶瀹炰緥锛?/p>

 

• K-鍧囧€硷紙k-Means锛?/li>
• k-Medians 绠楁硶
• Expectation Maximi 灏佸眰 ation (EM)
• 鏈€澶ф湡鏈涚畻娉曪紙EM锛?/li>
• 鍒嗗眰闆嗙兢锛圚ierarchical Clstering锛?/li>

 

鑱氱被绠楁硶璇﹁В锛?a title="" href="http://www.ppvke.com/Blog/archives/45219" data-original-title="">鏈哄櫒瀛︿範绠楁硶涔嬭仛绫荤畻娉?/a>

 

璐濆彾鏂畻娉曪紙Bayesian Algorithms锛?/h2>

 

璐濆彾鏂畾鐞嗭紙鑻辫锛欱ayes’ theorem锛夋槸姒傜巼璁轰腑鐨勪竴涓畾鐞嗭紝瀹冭窡闅忔満鍙橀噺鐨勬潯浠舵鐜囦互鍙婅竟缂樻鐜囧垎甯冩湁鍏炽€傚湪鏈変簺鍏充簬姒傜巼鐨勮В璇翠腑锛岃礉鍙舵柉瀹氱悊锛堣礉鍙舵柉鏇存柊锛夎兘澶熷憡鐭ユ垜浠浣曞埄鐢ㄦ柊璇佹嵁淇敼宸叉湁鐨勭湅娉曘€傝礉鍙舵柉鏂规硶鏄寚鏄庣‘搴旂敤浜嗚礉鍙舵柉瀹氱悊鏉ヨВ鍐冲鍒嗙被鍜屽洖褰掔瓑闂鐨勬柟娉曘€?/p>

 

绠楁硶瀹炰緥锛?/p>

 

• 鏈寸礌璐濆彾鏂紙Naive Bayes锛?/li>
• 楂樻柉鏈寸礌璐濆彾鏂紙Gaussian Naive Bayes锛?/li>
• 澶氶」寮忔湸绱犺礉鍙舵柉锛圡ultinomial Naive Bayes锛?/li>
• 骞冲潎涓€鑷翠緷璧栦及璁″櫒锛圓veraged One-Dependence Estimators (AODE)锛?/li>
• 璐濆彾鏂俊蹇电綉缁滐紙Bayesian Belief Network (BBN)锛?/li>
• 璐濆彾鏂綉缁滐紙Bayesian Network (BN)锛?/li>

 

璐濆彾鏂畻娉曢摼鎺ワ細璐濆彾鏂畻娉曡瑙?/p>

 

鍏宠仈瑙勫垯瀛︿範绠楁硶锛圓ssociation Rule Learning Algorithms锛?/h2>

 

鍏宠仈瑙勫垯瀛︿範鏂规硶鑳藉鎻愬彇鍑哄鏁版嵁涓殑鍙橀噺涔嬮棿鐨勫叧绯荤殑鏈€浣宠В閲娿€傛瘮濡傝涓€瀹惰秴甯傜殑閿€鍞暟鎹腑瀛樺湪瑙勫垯 娲嬭懕锛屽湡璞唥=> 姹夊牎锛岄偅璇存槑褰撲竴浣嶅鎴峰悓鏃惰喘涔颁簡娲嬭懕鍜屽湡璞嗙殑鏃跺€欙紝浠栧緢鏈夊彲鑳借繕浼氳喘涔版眽鍫¤倝銆傛湁鐐圭被浼间簬鑱旀兂绠楁硶銆?/p>

 

绠楁硶瀹炰緥锛?/p>

 

• Apriori 绠楁硶锛圓priori algorithm锛?/li>
• Eclat 绠楁硶锛圗clat algorithm锛?/li>
• FP-growth

 

鍏宠仈瑙勫垯瀛︿範绠楁硶锛氬叧鑱旇鍒欏涔犵畻娉?/p>

 

鍥炬ā鍨嬶紙Graphical Models锛?/h2>

 

鍥炬ā鍨?/strong>(GraphicalModels)鍦ㄦ鐜囪涓庡浘璁轰箣闂村缓绔嬭捣浜嗚仈濮诲叧绯汇€傚畠鎻愪緵浜嗕竴绉嶈嚜鐒跺伐鍏锋潵澶勭悊搴旂敤鏁板涓庡伐绋嬩腑鐨勪袱绫婚棶棰?mdash;—涓嶇‘瀹氭€?Uncertainty)鍜屽鏉傛€?Complexity)闂?棰橈紝鐗瑰埆鏄湪鏈哄櫒瀛︿範绠楁硶鐨勫垎鏋愪笌璁捐涓壆婕旂潃閲嶈瑙掕壊銆傚浘妯″瀷鐨勫熀鏈悊蹇垫槸妯″潡鍖栫殑鎬濇兂锛屽鏉傜郴缁熸槸閫氳繃缁勫悎绠€鍗曠郴缁熷缓鏋勭殑銆傛鐜囪鎻愪緵浜嗕竴绉嶇矘鍚堝墏浣?绯荤粺鐨勫悇涓儴鍒嗙粍鍚堝湪涓€璧凤紝纭繚绯荤粺浣滀负鏁翠綋鐨勬寔缁竴鑷存€э紝鎻愪緵浜嗗绉嶆暟鎹帴鍙ｆā鍨嬫柟娉曘€?/p>

 

鍥炬ā鍨嬫垨姒傜巼鍥炬ā鍨嬶紙PGM/probabilistic graphical model锛夋槸涓€绉嶆鐜囨ā鍨嬶紝涓€涓浘锛坓raph锛夊彲浠ラ€氳繃鍏惰〃绀洪殢鏈哄彉閲忎箣闂寸殑鏉′欢渚濊禆缁撴瀯锛坈onditional dependence structure锛夈€?/p>

 

绠楁硶瀹炰緥锛?/p>

 

• 璐濆彾鏂綉缁滐紙Bayesian network锛?/li>
• 椹皵鍙か闅忔満鍩燂紙Markov random field锛?/li>
• 閾惧浘锛圕hain Graphs锛?/li>
• 绁栧厛鍥撅紙Ancestral graph锛?/li>

 

鍥炬ā鍨嬭瑙ｏ細鏈哄櫒瀛︿範绠楁硶涔嬪浘妯″瀷