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Ȩ Ȩ > ¿¬±¸¹®Çå > ±¹³» ÇÐȸÁö > µ¥ÀÌÅͺ£À̽º ¿¬±¸È¸Áö(SIGDB)

µ¥ÀÌÅͺ£À̽º ¿¬±¸È¸Áö(SIGDB)

Current Result Document :

ÇѱÛÁ¦¸ñ(Korean Title) »ç¿ëÀÚ »óÈ£ÀÛ¿ë°ú ½Å·ÚÇü¼ºÀÇ »óÈ£ ¿µÇâ¿¡ °üÇÑ ½Ã°è¿­ ºÐ¼®
¿µ¹®Á¦¸ñ(English Title) Time-Series Analysis of Mutual Influences between User nteractions and Trust Formation
ÀúÀÚ(Author) ¿ÀÇö±³   ÀÌÅÂÈñ   ±è»ó¿í   Hyun-Kyo Oh   Tae-Hee Lee   Sang-Wook Kim  
¿ø¹®¼ö·Ïó(Citation) VOL 31 NO. 01 PP. 0003 ~ 0014 (2015. 04)
Çѱ۳»¿ë
(Korean Abstract)
¿À´Ã³¯ ¿ì¸®´Â Á¤º¸ °úÀ×ÀÇ ½Ã´ë¿¡ »ì°í ÀÖ´Ù. ¿Â¶óÀÎ »ç¿ëÀÚµéÀº Á¤º¸ °úÀ׿¡¼­ ¹þ¾î³ª ¹ÏÀ» ¼ö ÀÖ´Â Á¤º¸¸¦ ¾ò°í ½Í¾î ÇÑ´Ù. ÃÖ±Ù µé¾î Á¤º¸ °úÀ× ¹®Á¦ ÇØ°áÀÇ ½Ç¸¶¸®·Î »ç¿ëÀÚ°£ÀÇ ½Å·Ú (trust)°¡ ÁÖ¸ñÀ» ¹Þ°í ÀÖ´Ù. ¼Ò¼È ¹Ìµð¾î¿¡¼­ÀÇ ½Å·Ú´Â ÇÑ »ç¿ëÀÚ°¡ ±×°¡ ½Å·ÚÇÏ´Â ´Ù¸¥ »ç¿ëÀÚµéÀÌ Á¦°øÇÏ´Â Á¤º¸¸¦ ¹ÏÀ½À» °¡Áö°í ¼ö¿ëÇÏ°Ú´Ù´Â ÀÇ»ç Ç¥ÇöÀÌ´Ù. ¼Ò¼È ¹Ìµð¾î »çÀÌÆ®¿¡¼­ ½Å·Ú Á¤º¸¸¦ È°¿ëÇÏ´Â ¾îÇø®ÄÉÀ̼ÇÀ¸·Î ½Å·Ú-ÀÎÁö Ãßõ ¼­ºñ½º, ¾çÁúÀÇ »ç¿ëÀÚ ¸®ºä¸¦ ã´Â ¼­ºñ½º µîÀÌ Á¦¾ÈµÇ¾î¿Ô´Ù. ±×·¯³ª ½ÇÁ¦ ¼Ò¼È ¹Ìµð¾î »çÀÌÆ®¿¡¼­´Â ¼Ò¼öÀÇ »ç¿ëÀÚ¸¸ÀÌ ½Å·Ú¸¦ Ç¥ÇöÇϱ⠶§¹®¿¡ ¸í½ÃµÈ ½Å·Ú Á¤º¸ÀÇ ¾çÀÌ ¸Å¿ì Èñ¹ÚÇÏ´Ù. ÀÌ·¯ÇÑ ½Å·Ú Á¤º¸ÀÇ Èñ¹Ú¼º ¹®Á¦ (sparsity problem)¸¦ ÇØ°áÇϱâÀ§ÇÑ ¹æ¹ýÀ¸·Î ´Ù¾çÇÑ ½Å·Ú¿¹Ãø (trust prediction) ¹æ¹ýµéÀÌ Á¦¾ÈµÇ¾î ¿Ô´Ù. ±âÁ¸ÀÇ ½Å·Ú¿¹Ãø ¹æ¹ýµéÀº »ç¿ëÀÚ°£ ½Å·Ú Çü¼º ½ÃÁ¡ ¹× »óÈ£ÀÛ¿ë ½ÃÁ¡ Á¤º¸°¡ ÀÖÀ½¿¡µµ ºÒ±¸ÇÏ°í ½Å·Ú¿¹ÃøÀ» À§ÇÑ ½Ã°è¿­ ºÐ¼®À» ¼öÇàÇÏÁö ¾Ê¾Ò´Ù. º» ³í¹®¿¡¼­´Â ÀÏ ´ÜÀ§ (daily) ½Ã°è¿­ ºÐ¼®À» ÅëÇØ ½Å·Ú Çü¼º°ú »óÈ£ÀÛ¿ë°£ÀÇ °ü·Ã¼ºÀ» ÆľÇÇÑ´Ù. ½Å·Ú°ü°è¸¦ °®´Â »ç¿ëÀÚ°£ »óÈ£ÀÛ¿ëÀÇ ÃßÀ̸¦ ºÐ¼®ÇÔÀ¸·Î½á ½Å·Ú Çü¼º¿¡ ¼±ÇàÇϴ Ưº°ÇÑ ÆÐÅÏÀ» ÆľÇÇÒ ¼ö ÀÖ°í ³ª¾Æ°¡ ±× ÆÐÅÏÀ» È°¿ëÇÏ¿© º¸´Ù Çâ»óµÈ ½Å·Ú¿¹Ãø ¹æ¹ýÀ» ±¸ÃàÇÒ ¼ö ÀÖ´Ù. ºÐ¼® °á°ú, »ç¿ëÀÚ°£¿¡ ½Å·Ú°¡ Çü¼ºµÇ±â À§Çؼ­´Â ÀÏÁ¤·® ÀÌ»óÀÇ »óÈ£ÀÛ¿ëÀÌ ÇÊ¿äÇÏ´Ù´Â »ç½ÇÀ» ¹ß°ßÇß´Ù. ¶ÇÇÑ, ´ëºÎºÐÀÇ »ç¿ëÀÚ ½ÖÀÌ ½Å·Ú¸¦ Çü¼ºÇÑ ÀÌÈÄ¿¡´Â ÀÌÀü°ú ºñ±³ÇÏ¿© ¿ÀÈ÷·Á »óÈ£ÀÛ¿ëÀÌ °¨¼ÒÇÏ´Â ÆÐÅÏÀ» º¸ÀÓÀ» ¹ß°ßÇß´Ù.
¿µ¹®³»¿ë
(English Abstract)
We are living in the era of information overload. Escaping from the information overload, online users are hoping to get reliable information. As a key solution to information overload, trust among users has received increasing attention in recent years. Trust in social media is an expression of faith and confidence that a trustor is willing to accept the information provided by his/her trustee. In social media, various applications based on trust have been developed, including services of trust-aware recommendation and finding high-quality user reviews. In reality, however, the explicit trust relations available are extremely sparse because a quite small number of users express trust relations. In order to solve the sparsity problem by inferring unknown trust relations, trust prediction methods have been proposed. Although time-stamps on trust formation and user interactions are available, no existing methods do not perform time-series analysis on them in trust prediction. In this paper, we analyze the trend of user interactions that appear before and after the trust formation on daily time-series data. We found that a certain level of user interactions is required for trust to be formed between two users. Once trust between two users has been developed, the level of user interactions between a pair of users having trust rather decreases. We expect that the result of our analysis provides a nice insight towards a more advanced approach to trust prediction.
Å°¿öµå(Keyword) ½Å·Ú Çü¼º   »ç¿ëÀÚ »óÈ£ÀÛ¿ë   ½Ã°è¿­ ºÐ¼®   ½Å·Ú¿¹Ãø   epinions   Trust formation   user interaction   time-series analysis   trust prediction   epinions  
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