Current Result Document :
ÇѱÛÁ¦¸ñ(Korean Title) |
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¿µ¹®Á¦¸ñ(English Title) |
Alleviating Popularity Bias in Session-based Recommendation Considering Long-tail Distribution |
ÀúÀÚ(Author) |
¾çÈñÀ±
ÀÌÁöÇü
Heeyoon Yang
Jee-Hyong Lee
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¿ø¹®¼ö·Ïó(Citation) |
VOL 49 NO. 02 PP. 0532 ~ 0534 (2022. 12) |
Çѱ۳»¿ë (Korean Abstract) |
¼¼¼Ç ±â¹Ý Ãßõ¿¡ »ç¿ëµÇ´Â ¼¼¼Ç µ¥ÀÌÅͼÂÀº ·ÕÅ×ÀÏ ºÐÆ÷(Long-tail Distribution)¸¦ Áö´Ï°í ÀÖ¾î, ÀÚÁÖ µîÀåÇÏ´Â ¾ÆÀÌÅÛµéÀÌ È°¹ßÈ÷ ÇнÀµÇ¾î Àα⵵ ÆíÇâ(Popularity Bias) ¹®Á¦°¡ ºó¹øÈ÷ ¹ß»ýÇÑ´Ù. ÇнÀ °úÁ¤¿¡¼ µîÀå ºóµµ°¡ ³ôÀº ¾ÆÀÌÅÛµéÀº ³ë¸§(Norm)ÀÌ Áõ°¡ÇÏ°í, ¼¼¼Ç ±â¹Ý ÃßõÀÇ Æ¯¼º»ó ³ë¸§ÀÌ Å« ¾ÆÀÌÅ۵鿡 Ä¡¿ìÃļ ÃßõµÇ´Â °æÇâÀÌ ÀÖ´Ù. º» ³í¹®¿¡¼´Â À̸¦ ¿ÏÈÇϱâ À§Çؼ ³ë¸§ÀÇ Å©±â¸¦ ±âÁØÀ¸·Î ÇÑ Mixup°ú Focal Loss¸¦ Àû¿ëÇß´Ù. ³ë¸§ÀÌ ÀÛÀº ¼¼¼ÇµéÀ» ±âÁØÀ¸·Î Å« ¼¼¼Çµé°ú Manifold MixupÇÏ¿© ³ë¸§ÀÌ ÀÛÀº ¼¼¼ÇµéÀ» È°¹ßÈ÷ ÇнÀÇÏ¿© ²¿¸® ¾ÆÀÌÅÛ¿¡ ´ëÇÑ Á¤È®µµ¸¦ Çâ»óÇß´Ù. Focal Loss¸¦ ÅëÇØ ¸ðµ¨ÀÌ ºÐ·ùÇϱ⠾î·Á¿î ²¿¸® ¾ÆÀÌÅÛ¿¡ °¡ÁßÄ¡¸¦ ºÎ¿©ÇÏ¿© ¸Ó¸® ¾ÆÀÌÅÛ¿¡ ´ëÇÑ Àα⵵ ÆíÇâÀ» ³·Ãß¾ú´Ù. °á°úÀûÀ¸·Î, ²¿¸® ¾ÆÀÌÅÛ¿¡ ´ëÇÑ Á¤È®µµ Çâ»ó°ú Àα⵵ ÆíÇâ ¿Ïȸ¦ µ¿½Ã¿¡ ´Þ¼ºÇÏ¿´´Ù. |
¿µ¹®³»¿ë (English Abstract) |
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