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Ȩ Ȩ > ¿¬±¸¹®Çå > ±¹³» ³í¹®Áö > Çѱ¹Á¤º¸Åë½ÅÇÐȸ ³í¹®Áö (Journal of the Korea Institute of Information and Communication Engineering)

Çѱ¹Á¤º¸Åë½ÅÇÐȸ ³í¹®Áö (Journal of the Korea Institute of Information and Communication Engineering)

Current Result Document :

ÇѱÛÁ¦¸ñ(Korean Title) º¹ÇÕÁúÀÇÀÇ È¿À²Àû ¼öÇàÀ» À§ÇÑ ±ËÀûÁúÀÇ ÇÊÅ͸µ ±â¹ý
¿µ¹®Á¦¸ñ(English Title) A Filtering Method of Trajectory Query for Efficient Process of Combined Query
ÀúÀÚ(Author) ¹ÝÀçÈÆ   ±èÁ¾¹Î   ChaeHoon Ban   JongMin Kim  
¿ø¹®¼ö·Ïó(Citation) VOL 12 NO. 09 PP. 1584 ~ 1590 (2008. 09)
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(Korean Abstract)
¿µ¿ª ÁúÀÇ¿Í ±ËÀû ÁúÀÇ·Î ±¸¼ºµÈ º¹ÇÕÁúÀǴ ƯÁ¤ ¿µ¿ª¿¡ À§Ä¡ÇÏ´Â À̵¿Ã¼ÀÇ ±ËÀûÀ» °Ë»öÇÏ´Â ÁúÀÇÀÌ´Ù. ±ËÀûÁúÀÇ´Â ¼±Çà±ËÀûÀ» ã±â À§ÇØ Á¡ÁúÀǸ¦ °è¼Ó ¹Ýº¹Çϱ⠶§¹®¿¡ º¹ÇÕÁúÀÇÀÇ ¼º´ÉÀ» °áÁ¤Áþ´Â Áß¿äÇÑ ¿ä¼ÒÀÌ´Ù. ÀÌ °æ¿ì¿¡ Á¡ÁúÀÇ´Â À妽ºÀÇ ³ëµå¸¦ Áߺ¹Çؼ­ ¹æ¹®Çϱ⠶§¹®¿¡ ÁúÀÇó¸®ÀÇ ¼öÇà¼Óµµ°¡ ¸Å¿ì ´À·ÁÁø´Ù.
ÀÌ ³í¹®Àº ¿µ¿ª ÁúÀÇ¿¡ ¿ì¼öÇÑ ¼º´ÉÀ» °¡Áø R-tree ±â¹ÝÀÇ À̵¿Ã¼ »öÀÎÀ» ´ë»óÀ¸·Î ±ËÀû ÁúÀǸ¦ È¿À²ÀûÀ¸·Î ó¸®ÇÔÀ¸·Î½á º¹ÇÕ ÁúÀÇÀÇ ¼º´ÉÀ» Çâ»ó½ÃÅ°±â À§ÇÑ ¹æ¹ýÀ» Á¦½ÃÇÑ´Ù. ±âÁ¸ ¿¬±¸ÀÇ ¹®Á¦Á¡ÀÎ ³ëµåÀÇ Áߺ¹ ¹æ¹®À» ¹æÁöÇϱâ À§ÇØ ÃÖ¼Ò °øÅë Ž»ö ¼±ºÐÀ» Á¤ÀÇÇÏ¿© ´ÜÀÏ ¹æÇâÀ¸·Î¸¸ Ž»öÇÏ¸ç ±ËÀûÀ» ¿¹ÃøÇÏ°í ¿¹ÃøµÈ ¼±ºÐÀ» ÀÌ¿ëÇÏ¿© ¿¬¼ÓµÈ ±ËÀûÀ» µ¿½Ã¿¡ Ž»öÇÏ´Â ¿¹Ãø±â¹Ý ¿©°ú ¹æ¹ýÀ» Á¦¾ÈÇÑ´Ù.
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(English Abstract)
The combined query which consists of the region and trajectory query finds trajectories of moving objects which locate in a certain region. The trajectory query is very informant factor to determine query performance because it processes a point query continuously to find predecessors. This results in bad performance due to revisiting nodes in an index.
This paper suggests an efficient method for the combined query based on the 3-dimensional R-tree which has good performance of the region query. The basic idea is that we define the least common search line which enables to search single path and a filtering method based on prediction without revisiting nodes
Å°¿öµå(Keyword) À̵¿Ã¼   3Â÷¿ø R-tree   º¹ÇÕÁúÀÇ   ±ËÀû   moving objects   3D R-tree   combined query   trajectory  
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