. dai bai zhi jie gou yu ce zhi chi xiang liang ji de ying yong. botany. -52 ⢠第4ç« æé æ¯æåéæº å¤éåç±» åé¢ç讨论é½ä»¥åºå两类ç¹ä¸ºåºç¡ï¼ç¶èå¨ç°å®ä¸çä¸-常常å¤çå¤äºä¸¤ç±»ç¹ç åç±».è®-ç»éç±æ°å¯¹(Xi,ä»)ç»æï¼å ¶ä¸-e i?",ä¸ä»G {1ï¼â¦ï¼n}ï¼ i = 1ï¼â¦ï¼Z.ä¸ é¢éè¿°äºå åç±»æ©å±å°å¤å åç±»çæ¹æ³.å¤å åç±»æ¯ä»¥äºå å类为åºç¡çï¼ç±äºå åç±»æ©å±å°å¤å åç±»ä¸è¬å æ¬ä¸¤ç§æ¹æ³[74j:â ä¸å¯¹å¤çåç±»ï¼â¡ä¸å¯¹ä¸çåç±». è¿ä¸¤ç§å¤éåç±»æ¹æ³çæ¯è¾è§å¾ (a) ä¸å¯¹å¤åç±» ï¼b) â对ä¸åç±» å¾4~4 两ç§å¤éåç±»æ¹æ³çæ¯è¾ï¼æºèªï¼Florian Markowetz, 2002) ä¸å¯¹å¤çåç±» 使ç¨äºå åç±»å¨æé å¤éåç±»çè¿ç¨å¦ä¸ï¼æé å¤ä¸ªä
. dai bai zhi jie gou yu ce zhi chi xiang liang ji de ying yong. botany. -52 ⢠第4ç« æé æ¯æåéæº å¤éåç±» åé¢ç讨论é½ä»¥åºå两类ç¹ä¸ºåºç¡ï¼ç¶èå¨ç°å®ä¸çä¸-常常å¤çå¤äºä¸¤ç±»ç¹ç åç±».è®-ç»éç±æ°å¯¹(Xi,ä»)ç»æï¼å ¶ä¸-e i?",ä¸ä»G {1ï¼â¦ï¼n}ï¼ i = 1ï¼â¦ï¼Z.ä¸ é¢éè¿°äºå åç±»æ©å±å°å¤å åç±»çæ¹æ³.å¤å åç±»æ¯ä»¥äºå å类为åºç¡çï¼ç±äºå åç±»æ©å±å°å¤å åç±»ä¸è¬å æ¬ä¸¤ç§æ¹æ³[74j:â ä¸å¯¹å¤çåç±»ï¼â¡ä¸å¯¹ä¸çåç±». è¿ä¸¤ç§å¤éåç±»æ¹æ³çæ¯è¾è§å¾ (a) ä¸å¯¹å¤åç±» ï¼b) â对ä¸åç±» å¾4~4 两ç§å¤éåç±»æ¹æ³çæ¯è¾ï¼æºèªï¼Florian Markowetz, 2002) ä¸å¯¹å¤çåç±» 使ç¨äºå åç±»å¨æé å¤éåç±»çè¿ç¨å¦ä¸ï¼æé å¤ä¸ªäºå åç±»å½æ°/fcOiO = sign(K,x) + 6fc)ï¼ A: = 1ï¼â¦ï¼nï¼é£ä¹è®-ç»ç¹ç第kç±»åç±»æ ·æ¬å¯ä»¥è¡¨ç¤ºä¸º ,,ãf +1ï¼ a:æ¯å±äºç¬¬/Cç±»çç¹ å¨äºå åç±»ä¸-使ç¨è¿æ ·çåç±»æ¹æ³ï¼ä½å¨å¤å åç±»ä¸-è¿æ ·è¿è¡å类就ä¼åºç°æ··ä¹±. å 为è¦æå¹³é¢åæ好å 个åºåå°±å¿ é¡»æå¤ä¸ªåç±»å¨å¤äºæ¿æ´»ç¶æ. èèå®å¼åé/ Or) = å ¶ä¸-/(Or) = {wk,x) + bk.ä»å ä½ çè§åº¦æ¥çï¼è¿ä¸ªåéçæ¯ä¸ä¸ªç»åæ¯Xå°ç¬¬nä¸ªè¶ å¹³é¢çè·ç¦».éæ©ä½¿ç¸åº ç/ï¼^(0ï¼)ï¼k = l,---,nçå¼å°è¶ å¹³é¢çè·ç¦»æ大 k* = arg max /( (x) k è¿ç§æ¹æ³ç§°"winner-takes-all".è¿ç§å¯åå¼æ¹æ³ä¸»è¦ç缺ç¹æ¯æå¾è¾¹çä¸çä¸ä¸ªç¹ ä¸n个æ¯æåéæºè®¡ç®å¾å°çåå§å³å®å½æ°å¿ é¡»ä¸è´ï¼æä
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Keywords: ., bookcollectionbiodiversity, bookleafnumber62, booksubjectbotany
