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Ȩ Ȩ > ¿¬±¸¹®Çå > ±¹³» ³í¹®Áö > Çѱ¹Á¤º¸°úÇÐȸ ³í¹®Áö > Á¤º¸°úÇÐȸ³í¹®Áö (Journal of KIISE)

Á¤º¸°úÇÐȸ³í¹®Áö (Journal of KIISE)

Current Result Document :

ÇѱÛÁ¦¸ñ(Korean Title) ¼Ó¼º°ª ±â¹ÝÀÇ Á¤±ÔÈ­µÈ ·ÎÁö½ºÆ½ ȸ±ÍºÐ¼® ¸ðµ¨
¿µ¹®Á¦¸ñ(English Title) Value Weighted Regularized Logistic Regression Model
ÀúÀÚ(Author) ÀÌâȯ   Á¤¹Ì³ª   Chang-Hwan Lee   Mina Jung  
¿ø¹®¼ö·Ïó(Citation) VOL 43 NO. 11 PP. 1270 ~ 1274 (2016. 11)
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(Korean Abstract)
·ÎÁö½ºÆ½ ȸ±ÍºÐ¼®Àº Åë°èÇÐ µîÀÇ ºÐ¾ß¿¡¼­ ¿¹ÃøÀ» À§ÇÑ ±â¼ú ȤÀº º¯¼ö °£ÀÇ »ó°ü°ü°è¸¦ ¼³¸íÇϱâ À§ÇÏ¿© ¿À·§µ¿¾È »ç¿ëµÇ¾î ¿Ô´Ù. ÀÌ·¯ÇÑ ·ÎÁö½ºÆ½ ȸ±ÍºÐ¼® ¹æ¹ý¿¡¼­ ÇöÀç °¢ ¼Ó¼ºµéÀº ¸ñÀû °ª¿¡ ´ëÇÏ¿© µ¿ÀÏÇÑ Áß¿äµµ¸¦ °¡Áö°í ÀÖ´Ù. º» ¿¬±¸¿¡¼­´Â ÀÌ·¯ÇÑ °¡ÁßÄ¡ °è»êÀ» Á»´õ ¼¼ºÐÈ­ÇÏ¿© °¢ ¼Ó¼ºÀÇ °ªÀÌ ¼­·Î ´Ù¸¥ Áß¿äµµ¸¦ °¡Áö´Â »õ·Î¿î ÇнÀ ¹æ¹ýÀ» Á¦½ÃÇÑ´Ù. ¾Ë°í¸®ÁòÀÇ ¼º´ÉÀ» ÃÖ´ëÈ­ÇÏ´Â °¢ ¼Ó¼º°ª °¡ÁßÄ¡ÀÇ °ªÀ» °è»êÇϱâ À§ÇÏ¿© Á¡ÁøÀû ÇÏ°­¹ýÀ» ÀÌ¿ëÇÏ¿© °³¹ßÇÏ¿´´Ù. º» ¿¬±¸¿¡¼­ Á¦¾ÈµÈ ¹æ¹ýÀº ´Ù¾çÇÑ µ¥ÀÌÅ͸¦ ÀÌ¿ëÇÏ¿© ½ÇÇèÇÏ¿´°í ¼Ó¼º°ª ±â¹Ý ·ÎÁö½ºÆ½ ȸ±ÍºÐ¼® ¹æ¹ýÀº ±âÁ¸ÀÇ ·ÎÁö½ºÆ½ ȸ±ÍºÐ¼®º¸´Ù ¿ì¼öÇÑ ÇнÀ ´É·ÂÀ» º¸ÀÓÀ» ¾Ë ¼ö ÀÖ¾ú´Ù.
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(English Abstract)
Logistic regression is widely used for predicting and estimating the relationship among variables. We propose a new logistic regression model, the value weighted logistic regression, which comprises of a fine-grained weighting method, and assigns adapted weights to each feature value. This gradient approach obtains the optimal weights of feature values. Experiments were conducted on several data sets from the UCI machine learning repository, and the results revealed that the proposed method achieves meaningful improvement in the prediction accuracy.

Å°¿öµå(Keyword) ·ÎÁö½ºÆ½ ȸ±ÍºÐ¼®   ¼Ó¼º °¡ÁßÄ¡   ºÐ·ùÇнÀ   logistic regression   feature weighting   classification  
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