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Current Result Document :

ÇѱÛÁ¦¸ñ(Korean Title) À¥ °Ë»öÀ» À§ÇÑ È®Àå °¡´É ÁØÁöµµ ¼±È£µµ ÇнÀ
¿µ¹®Á¦¸ñ(English Title) Scalable Semi-supervised Preference Learning for Web Search
ÀúÀÚ(Author) ±è°èÇö   ÃÖ½ÂÁø   Kye-Hyeon Kim   Seungjin Choi  
¿ø¹®¼ö·Ïó(Citation) VOL 17 NO. 04 PP. 0239 ~ 0243 (2011. 04)
Çѱ۳»¿ë
(Korean Abstract)
º» ³í¹®Àº À¥ °Ë»ö¿¡¼­ »ç¿ëÀÚÀÇ °Ë»ö ±â·Ï°ú À¥ ¹®¼­°£ÀÇ ¿¬°ü °ü°è¸¦ µ¿½Ã¿¡ ÀÌ¿ëÇÏ¿© ÀûÇÕÇÑ ·©Å· ÇÔ¼ö¸¦ ÇнÀÇÏ´Â ¹æ¹ýÀ» ¼Ò°³ÇÑ´Ù. Á¦¾ÈÇÏ´Â ¹æ¹ýÀº ±×·¡ÇÁ ±â¹ÝÀÇ ÁØÁöµµ ÇнÀ(semi-supervised learning) ±â¹ýÀ» ¼±È£µµ ÇнÀ(preference learning)¿¡ Àû¿ëÇÑ ±â°èÇнÀ ¾Ë°í¸®ÁòÀ¸·Î, ±×·¡ÇÁÀÇ °¡ÁßÄ¡ Çà·Ä(weight matrix)À» Á÷Á¢ÀûÀ¸·Î °è»êÇÒ ÇÊ¿ä°¡ ¾ø´Â matrix-free ¾Ë°í¸®ÁòÀ» °í¾ÈÇÏ¿© ´ë±Ô¸ð µ¥ÀÌÅ͸¦ ´Ù·ê ¼ö ÀÖµµ·Ï ÇÏ¿´´Ù. ¶ÇÇÑ »õ·Î¿î °Ë»ö ±â·ÏµéÀÌ Ãß°¡µÉ ¶§¸¶´Ù ÀÌ¹Ì ÇнÀµÈ ·©Å· ÇÔ¼ö¸¦ È¿À²ÀûÀ¸·Î ¾÷µ¥ÀÌÆ®ÇÒ ¼ö ÀÖµµ·Ï Á¡ÁøÀû(incremental) ÇнÀ ¾Ë°í¸®ÁòÀ» °³¹ßÇÏ¿´´Ù. Microsoft Research Asia¿¡¼­ ¾à 400¸¸°³ ÁúÀǾ ´ëÇØ ¼öÁýÇÑ MSN Live SearchÀÇ °Ë»ö ±â·Ï µ¥ÀÌÅÍ¿¡ º» ¹æ¹ýÀ» Àû¿ëÇÑ °á°ú, ÁÖ¾îÁø ÁúÀǾ ÀûÇÕÇÔ¿¡µµ Live Search¿¡¼­ ¼øÀ§°¡ ³·°Ô Ã¥Á¤µÇ¾ú´ø À¥ ÆäÀÌÁöµéÀÇ °Ë»ö ¼øÀ§¸¦ Å©°Ô Çâ»ó½ÃÅ´À¸·Î½á(Æò±Õ 11-20À§ ¡æ 3-12À§·Î Çâ»ó) ´õ¿í Á¤È®ÇÑ °Ë»ö °á°ú¸¦ »êÃâÇÏ¿´À¸¸ç, À̸¦ À§ÇØ ÁúÀǾî´ç ½Ç½Ã°£À¸·Î ¼Ò¿äµÈ ó¸® ½Ã°£Àº ºÒ°ú 1.4¹Ð¸®ÃÊ¿´´Ù.
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(English Abstract)
In this paper, we present a novel method for learning to rank, which is capable of semi-supervised learning by utilizing both click-through logs and the similarities between web pages simultaneously. To achieve web-scale semi-supervised learning, we develop a matrix-free algorithm that extracts latent features from a given set of web pages, where the huge similarity matrix of the web pages is not needed. Moreover, we present an incremental algorithm for our semi-supervised preference learning framework. Experiments on the Microsoft Live Search query log data show that our method effectively improves the ranks of relevant web pages of a given query, which are underestimated by Microsoft Live Search.

Å°¿öµå(Keyword) Á¤º¸°Ë»ö   ¼±È£µµÇнÀ   ÁØÁöµµÇнÀ   Information Retrieval   Preference Learning   Semi-supervised Learning  
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