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ÇѱÛÁ¦¸ñ(Korean Title) |
µ¶¸³ ¿¬¼â ¸ðµ¨°ú ±× È®Àå ¸ðµ¨µéÀ» À§ÇÑ ÅëÇÕ ¿µÇâ·Â ÃÖ´ëÈ Ã³¸® ¾Ë°í¸®µë |
¿µ¹®Á¦¸ñ(English Title) |
A Unified Influence Maximization Processing Algorithm for Independent Cascade Model and its Extensions |
ÀúÀÚ(Author) |
±èÁøÇÏ
À¯È¯Á¶
Jinha Kim
Hwanjo Yu
|
¿ø¹®¼ö·Ïó(Citation) |
VOL 29 NO. 02 PP. 0109 ~ 0120 (2013. 08) |
Çѱ۳»¿ë (Korean Abstract) |
¼Ò¼È ³×Æ®¿öÅ©ÀÇ ?#51077;¼Ò¹®?È¿°ú´Â ±Ù·¡ÀÇ ¸¶ÄÉÆÿ¡ ÀÖ¾î Áß¿äÇÑ ¿ªÇÒÀ» Â÷ÁöÇÏ°í ÀÖ´Ù. ¿µÇâ·Â ÃÖ´ëÈ ¹®Á¦´Â ÀÔ¼Ò¹® È¿°ú¸¦ ÃÖ´ëÈ ÇÏ´Â °ÍÀ» ¸ñÇ¥·Î ÇÏ¸ç ±× ¸ñÇ¥¸¦ Á¶ÇÕ ÃÖÀûÈ ¹®Á¦·Î Á¤ÇüÈ ÇÑ´Ù. ¿µÇâ·Â ÃÖ´ëÈ ¹®Á¦ ÇØ°á °úÁ¤ÀÇ Áß¿äÇÑ ¿ä¼Ò·Î¼, ¿µÇâ·Â ÃøÁ¤Àº ´ÙÇ׽𣠳»¿¡ ÇØ°áÇÒ ¼ö ¾ø´Â °ÍÀ¸·Î ¿©°ÜÁö´Â #P-hard ¹®Á¦·Î ºÐ·ùµÈ´Ù. ÀÌ¿¡ µû¶ó, È¿À²ÀûÀÎ ¿µÇâ·Â ÃøÁ¤/±Ù»ç ¾Ë°í¸®µëÀ» °í¾ÈÇÏ´Â °ÍÀº ¸Å¿ì Áß¿äÇÑ ÀÏÀÌ´Ù. º» ³í¹®¿¡¼´Â, È¿°úÀûÀÎ ¿µÇâ·Â ±Ù»ç ¾Ë°í¸®µëÀÎ Independent Path Algorithm(IPA)¸¦ Á¦¾ÈÇÑ´Ù. IPAÀÇ ÁÖµÈ ¾ÆÀ̵ð¾î´Â ¿µ Çâ·Â Àü´Þ °æ·Î¸¦ ¿µÇâ·Â ÃøÁ¤ÀÇ ÃÖ¼Ò ±âÁØÀ¸·Î »ï´Â °ÍÀÌ´Ù. ÀÌ ¾ÆÀ̵ð¾î¸¦ ÅëÇØ, IPA´Â ±âÁ¸ÀÇ °¡Àå È¿À²ÀûÀÎ ¿µÇâ·Â ±Ù»ç ¾Ë°í¸®µëÀÎ Prefix excluding Maximum Influence Arborescence(PMIA) º¸´Ù 10¹è ÀÌ»ó ºü¸£ °í ´õ¿í Á¤È®È÷ ¿µÇâ·ÂÀ» ±Ù»çÇÑ´Ù. ÀÌ¿Í ´õºÒ¾î, IPA´Â µ¶¸³ ¿¬¼â ¸ðµ¨(Independent Cascade(IC) model) »Ó ¾Æ´Ï¶ó ±× È®Àå ¸ðµ¨µé¿¡µµ ½±°Ô Àû¿ëÀÌ °¡´ÉÇÏ´Ù. |
¿µ¹®³»¿ë (English Abstract) |
The “word-of-mouth?effect on social networks ?opinion propagation?nowadays plays an important role in marketing. The influence maximization problem aims at maximizing the word-of-mouth effect and formulates such goal as a combinatorial optimization problem. As an important process of the influence maximization problem, evaluating influence is #P-hard which cannot be affordable in a polynomial time. Accordingly, devising a fast influence evaluation/approximation algorithm is crucial. We propose a scalable influence approximation algorithm called IPA. The main idea of IPA is considering an influence path as an independent influence evaluation unit. Using that idea, IPA approximates influence an order of magnitude faster and more accurately than PMIA, the current state of the art approximation algorithm. In addition, IPA is applicable to independent cascading(IC) model and its extensions. |
Å°¿öµå(Keyword) |
¿µÇâ·Â ÃÖ´ëÈ
¼Ò¼È ³×Æ®¿öÅ©
Influence maximization
social networks
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ÆÄÀÏ÷ºÎ |
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