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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) À¯»ç ÁúÀǾî 󸮸¦ À§ÇÑ µ¥ÀÌÅÍ µ¶¸³ÀûÀÎ ºóƼÁö Æ÷ÀÎÆ® ¼±Åà ¹æ¹ý
¿µ¹®Á¦¸ñ(English Title) Data Independent Vantage Point Selection Method for Similarity Queries
ÀúÀÚ(Author) Á¶¹üÁØ   Bumjoon Jo   ±è»ó±Ù   Sangkeun Kim   Á¤¼º¿ø   Sungwon Jung  
¿ø¹®¼ö·Ïó(Citation) VOL 31 NO. 03 PP. 0072 ~ 0082 (2015. 12)
Çѱ۳»¿ë
(Korean Abstract)
ºóƼÁö Æ÷ÀÎÆ®¿¡ ÀÇÇÑ °Å¸® ±â¹ÝÀÇ °ø°£ º¯È¯Àº µ¥ÀÌÅÍ °´Ã¼°£ÀÇ º¹ÀâÇÑ °Å¸® °è»êÀÌ ÇÊ¿ä ¾ø´Â È¿À²ÀûÀÎ À¯»ç ÁúÀǾî (¿¹: ¹üÀ§ ÁúÀÇ, kNN ÁúÀÇ) 󸮸¦ °¡´ÉÇÏ°Ô ÇÑ´Ù. ±×·±µ¥ ±âÁ¸¿¡ Á¦¾ÈµÈ °ø°£ º¯È¯ ±â¹ýµéÀº µ¥ÀÌÅÍ Æ÷ÀÎÆ® Áß¿¡¼­ ºóƼÁö Æ÷ÀÎÆ®¸¦ ¼±ÅÃÇϱ⠶§¹®¿¡ ¾÷µ¥ÀÌÆ®°¡ ºó¹øÇÑ µ¥ÀÌÅͺ£À̽º¿¡´Â Àû¿ëÇϱ⠾î·Æ´Ù´Â ¹®Á¦Á¡ÀÌ ÀÖ¾ú´Ù. ¶ÇÇÑ ÀÌ¿Í °°Àº ¹æ¹ýÀ¸·Î »ý¼ºµÈ º¯È¯ °ø°£Àº ¹üÀ§ÁúÀÇ¿¡´Â ÀûÇÕÇÏÁö¸¸ ƯÁ¤ ÁúÀÇ Á¡¿¡ ´ëÇÑ µ¥ÀÌÅÍ Æ÷ÀÎÆ®µéÀÇ °Å¸® ¼ø¼­°¡ º¸ÀåµÇÁö ¾Ê±â ¶§¹®¿¡ ±âÁ¸ÀÇ kNNÁúÀÇ Ã³¸® ±â¹ý Àû¿ëÀÌ ºÒ°¡´ÉÇÏ´Ù´Â ´ÜÁ¡µµ ÀÖ´Ù. ÀÌ¿Í °°Àº ¹®Á¦¸¦ ÇØ°áÇϱâ À§ÇÏ¿© º» ³í¹®¿¡¼­´Â ¸ÕÀú ´ÙÀ̳ª¹Í ÇÁ·Î±×·¡¹Ö ±â¹ýÀ» »ç¿ëÇÏ¿© ´ÝÈù °ø°£ÀÇ ÄÚ³Ê Æ÷ÀÎÆ® Áß¿¡¼­ µ¥ÀÌÅÍ µ¶¸³ÀûÀÎ ºóƼÁö Æ÷ÀÎÆ®¸¦ ¼±ÅÃÇÏ´Â ±â¹ýÀ» Á¦¾ÈÇÏ°í, º¯È¯µÈ °ø°£¿¡¼­ÀÇ kNN Ž»ö ¾Ë°í¸®ÁòÀ» °³¹ßÇÏ¿´´Ù. ½ÇÇè °á°ú´Â Á¦¾ÈµÈ ±â¹ýÀÌ ´Ù¸¥ °Å¸®±â¹Ý °ø°£ º¯È¯ ±â¹ýµé¿¡ ºñÇØ ¹üÀ§ÁúÀ§¿¡ ´õ È¿°úÀûÀÎ º¯È¯°ø°£À» »ý¼ºÇÔÀ» º¸¿©ÁØ´Ù.
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(English Abstract)
Distance based space transformation by using vantages point allows efficient similarity query(ex: range query, kNN query) processing without complex distance computation. However, most of these methods are not able to handle frequently updated dynamic databases, since the existing works of space transformation methods need to search databases to find a set of vantage points from data points, In the transformed space, range query processing is very effective whereas the existing kNN query processing methods are not directly applicable. This is because space transformation methods do not preserve the distance order of data points. To handle these problems, we first propose a method of selecting vantage points among the corner points in the closed space using dynamic programming. We then propose a kNN algorithm which computes the exact kNN in the transformed space. Experimental results show that our distance-based space transformation method gives better space for range queries than the existing distance-based space transformation methods.
Å°¿öµå(Keyword) ¸ÖƼ¹Ìµð¾î µ¥ÀÌÅͺ£À̽º   À¯»ç ÁúÀǾ ºóƼÁö Æ÷ÀÎÆ®   °Å¸®±â¹Ý °ø°£ º¯È¯   ¹üÀ§ ÁúÀǾ k-ÃÖ±ÙÁ¢ ÁúÀǾ multimedia databases   similarity query   vantage points   distance-based space transformation   range query   kNN query  
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