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ÇѱÛÁ¦¸ñ(Korean Title) |
´Ù´Ü°è Ä£±¸ ±×¸®µå¸¦ ÀÌ¿ëÇÑ È¿À²ÀûÀÎ ÃÖ±ÙÁ¢ Ä£±¸ ÁúÀÇ Ã³¸® ±â¹ý |
¿µ¹®Á¦¸ñ(English Title) |
An Efficient Nearest Friends Query Processing Method Using Multi-level Friends Grid |
ÀúÀÚ(Author) |
½Éâ¹ü
À̼º¹Î
Çã¿Ï
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Changbeom Shim
Sungmin Yi
Wan Heo
Yon Dohn Chung
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¿ø¹®¼ö·Ïó(Citation) |
VOL 31 NO. 02 PP. 0048 ~ 0057 (2015. 08) |
Çѱ۳»¿ë (Korean Abstract) |
½º¸¶Æ®±â±â ¹× ¼Ò¼È ³×Æ®¿öÅ©ÀÇ È®»êÀ¸·Î À§Ä¡ ±â¹Ý ¼Ò¼È ³×Æ®¿öÅ© ¼ºñ½º(Location-Based Social Network Services: LBSNS)°¡ Áö¼ÓÀûÀÎ °ü½ÉÀ» ¹Þ°í ÀÖ´Ù. ¿¹¸¦ µé¾î, »ç¿ëÀÚ´Â °ø°£ µ¥ÀÌÅ͸¦ ÀÌ¿ëÇØ Çà»ç Àå¼Ò, ¿©ÇàÁö, °ÅÁÖÁö¿Í °¡±îÀÌ ÀÖ´Â »ç¶÷À» °Ë»öÇÒ ¼ö ÀÖÀ¸¸ç, °Ë»öµÈ »ç¶÷µé°ú »ç¿ëÀÚÀÇ ¿¬°á(Ä£±¸) °ü°è ¶ÇÇÑ ¼Ò¼È µ¥ÀÌÅ͸¦ ÀÌ¿ëÇØ È®ÀÎÇÒ ¼ö ÀÖ´Ù. ÀÌ¿¡ µû¶ó, °ø°£ µ¥ÀÌÅÍ¿Í ¼Ò¼È ³×Æ®¿öÅ© µ¥ÀÌÅ͸¦ ¸ðµÎ °í·ÁÇÑ Áö¿À¼Ò¼È ³×Æ®¿öÅ©(Geo-Social Network)¿¡ °üÇÑ ¿¬±¸°¡ È°¹ßÈ÷ ÁøÇàµÇ°í ÀÖ´Ù. º» ³í¹®Àº ÁúÀÇ Á¡À¸·ÎºÎÅÍ °¡Àå °¡±î¿î ¸íÀÇ »ç¿ëÀÚ Ä£±¸¸¦ °Ë»öÇÏ´Â k-Nearest Friends (kNF) ÁúÀǸ¦ ¼Ò°³ÇÏ°í, À̸¦ È¿À²ÀûÀ¸·Î ó¸®Çϱâ À§ÇÑ »öÀα¸Á¶ÀÎ ´Ù´Ü°è Ä£±¸ ±×¸®µå(Multi-level Friends Grid: MFG)¸¦ Á¤ÀÇÇÑ´Ù. Á¤ÀÇÇÑ »öÀÎ ±¸Á¶¸¦ È°¿ëÇÏ¿© È¿À²ÀûÀÎ k-Nearest Friends ÁúÀÇ Ã³¸® ±â¹ýÀ» Á¦¾ÈÇÏ°í ¼º´É Æò°¡¸¦ ÅëÇØ È¿À²¼ºÀ» ÀÔÁõÇÑ´Ù.
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¿µ¹®³»¿ë (English Abstract) |
Location-Based Social Network Services (LBSNS). For example, we can find the nearest neighbors who live near a festival place or a vacation place, and check whether the neighbors are the user¡¯s friends or not by using the spatial and social network data. With the popularity of the LBSNS, the convergence research of spatial and social network (Geo-Social Network) has steadily progressed. In this paper, we study a k-Nearest Friends Query (kNF) that finds the number of knearest user¡¯s friends from query point and define the Multi-level Friends Grid (MFG) index structure for efficient kNF query processing. In addition, we propose a kNF query processing method using Multi-level Friends Grid index structure and demonstrate the efficiency by a variety of experiments.
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