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Ȩ Ȩ > ¿¬±¸¹®Çå > ±¹³» ³í¹®Áö > Çѱ¹Á¤º¸°úÇÐȸ ³í¹®Áö > Á¤º¸°úÇÐȸ ³í¹®Áö D : µ¥ÀÌŸº£À̽º

Á¤º¸°úÇÐȸ ³í¹®Áö D : µ¥ÀÌŸº£À̽º

Current Result Document :

ÇѱÛÁ¦¸ñ(Korean Title) ÃßÃâ ¿¬»êÀ» È°¿ëÇÑ À̵¿ Á¡ °´Ã¼ »öÀÎ ±â¹ý
¿µ¹®Á¦¸ñ(English Title) An Indexing Technique of Moving Point Objects using Projection
ÀúÀÚ(Author) Á¤¿µÁø   Àå½Â¿¬   ¾ÈÀ±¾Ö   ·ù±ÙÈ£  
¿ø¹®¼ö·Ïó(Citation) VOL 30 NO. 01 PP. 0052 ~ 0063 (2003. 02)
Çѱ۳»¿ë
(Korean Abstract)
Çö½Ç ¼¼°è¿¡¼­ ½Ã°£¿¡ µû¶ó ¿¬¼ÓÀûÀ¸·Î À§Ä¡³ª ¸ð¾çÀÌ º¯Çϸç À̵¿Çϴ µ¥ÀÌŸ¸¦ ½Ã°ø°£ À̵¿ °´Ã¼¶ó ÇÑ´Ù. ±âÁ¸ÀÇ À̵¿ °´Ã¼ »öÀÎÀº R-Æ®¸®ÀÇ ±¸Á¶¸¦ °¡Áö±â ¶§¹®¿¡, dead space, overlap µî R-Æ®¸®ÀÇ ¹®Á¦Á¡À» ±×´ë·Î °®°í ÀÖÀ» »Ó¸¸ ¾Æ´Ï¶ó °í·ÁÇϴ ÃÊÁ¡¿¡ µû¶ó ÀÌ ¹®Á¦°¡ ´õ Ä¿Áø´Ù. µû¶ó¼­, ÀÌ ³í¹®¿¡¼­´Â ÀÌ ¹®Á¦Á¡À» ÇØ°áÇϱâ À§ÇÏ¿© MPR-Æ®¸®(Moving Point R-tree)¸¦ Á¦¾ÈÇÑ´Ù. Á¦¾ÈµÈ MPR-Æ®¸®´Â ÃßÃâ ¿¬»êÀ» È°¿ëÇÏ¿© Æ¯Á¤ ½ÃÁ¡ ÁúÀÇ ¹× ½Ã°ø°£ ¹üÀ§ ÁúÀǸ¦ È¿°úÀûÀ¸·Î Ã³¸®Çϸç, µ¿ÀÏÇÑ À̵¿ °´Ã¼ À§Ä¡¸¦ ½Ã°£¿¡ µû¶ó ¿¬°á¸®½ºÆ®·Î ¿¬°áÇÏ¿© ±ËÀû ÁúÀǠ󸮸¦ ¿ëÀÌÇϰԠó¸®ÇÑ´Ù. ±âÁ¸ À̵¿ °´Ã¼ »öÀΰú ºñ±³ÇÑ ½ÇÇèÀ¸·ÎºÎÅÍ À̵¿ °´Ã¼ ÁúÀǠ󸮠¹× °ø°£ È°¿ë¿¡ ´ëÇØ ÃßÃâ ¿¬»êÀÌ À¯¿ëÇÏ°Ô ¾²ÀÓÀ» È®ÀÎÇÏ¿´´Ù. Á¦¾ÈµÈ MPR-Æ®¸®´Â LBS, GPS¸¦ È°¿ëÇÑ Â÷·® °ü¸® ½Ã½ºÅÛ, Ç×¹ý ½Ã½ºÅÛ µî À̵¿ °´Ã¼ °ü¸®¸¦ À§ÇÑ ½Ã½ºÅÛ¿¡¼­ È°¿ëµÉ ¼ö ÀÖ´Ù.
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(English Abstract)
Spatiotemporal moving objects are changing their positions and/or shape over time in real world. As most of the indices of moving object are based on the R-tree, they have defects of the R-tree which are dead space and overlap. Some of the indices amplify the defects of the R-tree. In the paper, to solve the problems, we propose the MPR-tree(Moving Point R-tree) using Projection operation which has more effective search than existing moving point indices on time slice query and spatiotemporal range query. The MPR-tree connects positions of the same moving objects over time by using linked list, so it processes the combined query about trajectory effectively. The usefulness of the Projection operation is confirmed during processing moving object queries and in practical use of space from experimentation to compare MPR-tree with existing indices of moving objects. The proposed MPR-tree would be useful in the LBS, the car management using GPS, and the navigation system.
Å°¿öµå(Keyword) À̵¿ µ¥ÀÌŸº£À̽º   ½Ã°ø°£ µ¥ÀÌŸº£À̽º   À̵¿ °´Ã¼   À̵¿ °´Ã¼ »öÀΠ  À̵¿ °´Ã¼ ÁúÀÇ   Spatiotemporal database   Moving objects   Indexing of moving objects   Spatiotemporal query  
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