❶ 綰挎т唬鏁扮殑璁＄畻鏂規硶鏈夊摢浜涳紵
綰挎т唬鏁版槸鏁板︾殑涓涓閲嶈佸垎鏀錛屼富瑕佺爺絀跺悜閲忋佸悜閲忕┖闂達紙涔熷彨綰挎х┖闂達級銆佺嚎鎬у彉鎹㈠拰鐭╅樀絳夋傚康銆傚湪瀹為檯搴旂敤涓錛岀嚎鎬т唬鏁扮殑璁＄畻鏂規硶涓昏佸寘鎷浠ヤ笅鍑犵嶏細
1.鐭╅樀榪愮畻錛氱煩闃靛姞娉曘佸噺娉曘佷箻娉曞拰閫嗙煩闃電殑璁＄畻鏄綰挎т唬鏁扮殑鍩烘湰鎿嶄綔銆傝繖浜涜繍綆楀彲浠ラ氳繃楂樻柉娑堝厓娉曘丩U鍒嗚В絳夋柟娉曢珮鏁堝湴瀹炵幇銆
2.鍚戦噺絀洪棿錛氬悜閲忕┖闂寸殑鐮旂┒娑夊強鍒板熀銆佺淮鏁般佸瓙絀洪棿絳夋傚康銆傚悜閲忕┖闂寸殑榪愮畻鍖呮嫭鍚戦噺鐨勫姞娉曘佸噺娉曞拰鏁頒箻錛屼互鍙婂悜閲忎箣闂寸殑鍐呯Н鍜屽栫Н銆
3.綰挎у彉鎹錛氱嚎鎬у彉鎹㈡槸灝嗕竴涓鍚戦噺絀洪棿鏄犲皠鍒板彟涓涓鍚戦噺絀洪棿鐨勬搷浣溿傜嚎鎬у彉鎹㈢殑鐮旂┒鍖呮嫭綰挎у彉鎹㈢殑鎬ц川銆佺煩闃佃〃紺恆佺壒寰佸煎拰鐗瑰緛鍚戦噺絳夈
4.鐗瑰緛鍊煎拰鐗瑰緛鍚戦噺錛氱壒寰佸煎拰鐗瑰緛鍚戦噺鏄綰挎т唬鏁頒腑鐨勯噸瑕佹傚康錛屽畠浠鎻忚堪浜嗙嚎鎬у彉鎹㈠圭┖闂寸殑褰卞搷銆傞氳繃奼傝В鐗瑰緛鏂圭▼錛屽彲浠ュ緱鍒扮壒寰佸煎拰瀵瑰簲鐨勭壒寰佸悜閲忋
5.姝ｄ氦鍖栧拰姝ｄ氦褰掍竴鍖栵細姝ｄ氦鍖栧拰姝ｄ氦褰掍竴鍖栨槸灝嗕竴緇勯潪姝ｄ氦鍚戦噺杞鎹涓烘ｄ氦鍚戦噺鐨勮繃紼嬨傝繖涓榪囩▼鍦ㄤ俊鍙峰勭悊銆佸浘鍍忓勭悊絳夐嗗煙鏈夊箍娉涘簲鐢ㄣ
6.濂囧紓鍊煎垎瑙ｏ紙SVD錛夛細濂囧紓鍊煎垎瑙ｆ槸涓縐嶅湪綰挎т唬鏁頒腑甯哥敤鐨勭煩闃靛垎瑙ｆ柟娉曪紝瀹冨彲浠ュ皢涓涓鐭╅樀鍒嗚В涓轟笁涓鐭╅樀鐨勪箻縐銆係VD鍦ㄦ暟鎹闄嶇淮銆佷俊鍙峰勭悊絳夐嗗煙鏈夐噸瑕佸簲鐢ㄣ
7.涓繪垚鍒嗗垎鏋愶紙PCA錛夛細涓繪垚鍒嗗垎鏋愭槸涓縐嶅熀浜庣嚎鎬т唬鏁扮殑鏁版嵁闄嶇淮鏂規硶錛屽畠閫氳繃灝嗘暟鎹鎶曞獎鍒頒竴涓鏂扮殑鍧愭爣緋伙紝浣垮緱鎶曞獎鍚庣殑鏁版嵁鏂瑰樊鏈澶с侾CA鍦ㄦ暟鎹鎸栨帢銆佹満鍣ㄥ︿範絳夐嗗煙鏈夊箍娉涘簲鐢ㄣ
8.鏈灝忎簩涔樻硶錛氭渶灝忎簩涔樻硶鏄涓縐嶆眰瑙ｇ嚎鎬ф柟紼嬬粍鐨勬柟娉曪紝瀹冮氳繃鏈灝忓寲璇宸騫蟲柟鍜屾潵鎵懼埌鏈浣寵В銆傛渶灝忎簩涔樻硶鍦ㄧ粺璁″︺佷紭鍖栫悊璁虹瓑棰嗗煙鏈夐噸瑕佸簲鐢ㄣ
❷ 綰挎у害濡備綍璁＄畻錛
綰挎у害鏄涓縐嶇敤浜庤閲忔暟鎹鐐逛箣闂寸殑綰挎у叧緋葷▼搴︾殑鎸囨爣銆備竴鑸鏉ヨ達紝綰挎у害鍙浠ラ氳繃璁＄畻鏁版嵁鐐逛笌鎷熷悎鐩寸嚎涔嬮棿鐨勫樊寮傛潵琛￠噺銆備互涓嬫槸涓縐嶅父瑙佺殑璁＄畻綰挎у害鐨勬柟娉曪細
1. 棣栧厛錛岄夋嫨涓涓鍚堥傜殑鎷熷悎鐩寸嚎妯″瀷錛屼緥濡備竴嬈＄嚎鎬у洖褰掓ā鍨 y = mx + b銆
2. 浣跨敤綰挎у洖褰掓柟娉曟嫙鍚堟暟鎹鐐癸紝寰楀埌鎷熷悎鐩寸嚎鐨勬枩鐜 m 鍜屾埅璺 b銆
3. 璁＄畻姣忎釜鏁版嵁鐐瑰埌鎷熷悎鐩寸嚎鐨勫瀭鐩磋窛紱伙紝鍙浠ヤ嬌鐢ㄥ瀭鐩磋窛紱葷殑騫蟲柟鍜岋紙鍗蟲畫宸騫蟲柟鍜岋級鏉ヨ閲忋
4. 璁＄畻鎬葷殑鍨傜洿璺濈誨鉤鏂瑰拰錛屽嵆灝嗘瘡涓鏁版嵁鐐圭殑鍨傜洿璺濈誨鉤鏂瑰拰奼傚拰銆
5. 璁＄畻鎬葷殑鍨傜洿璺濈誨鉤鏂瑰拰涓庢葷殑騫蟲柟鍜屼箣闂寸殑姣斿礆紝鍗崇嚎鎬у害銆傜嚎鎬у害瓚婃帴榪1錛岃〃紺烘暟鎹鐐逛箣闂寸殑綰挎у叧緋昏秺寮猴紱綰挎у害瓚婃帴榪0錛岃〃紺烘暟鎹鐐逛箣闂寸殑綰挎у叧緋昏秺寮辨垨涓嶅瓨鍦ㄧ嚎鎬у叧緋匯
璇鋒敞鎰忥紝榪欏彧鏄涓縐嶅父瑙佺殑璁＄畻綰挎у害鐨勬柟娉曪紝瀹為檯涓婅繕鏈夊叾浠栨柟娉曞彲浠ョ敤浜庤閲忔暟鎹鐐逛箣闂寸殑綰挎у叧緋葷▼搴︺傚叿浣撻夋嫨鍝縐嶆柟娉曞彇鍐充簬鏁版嵁鐨勬ц川鍜屽垎鏋愮殑鐩鐨勩