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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 : 7 / 7 ÀÌÀü°Ç ÀÌÀü°Ç

ÇѱÛÁ¦¸ñ(Korean Title) Top-n ½ºÄ«À̶óÀÎ ÁúÀÇ Ã³¸®¸¦ À§ÇÑ È¿À²ÀûÀÎ ±â¹ý
¿µ¹®Á¦¸ñ(English Title) An Efficient Method for Processing Top-n Skyline Queries
ÀúÀÚ(Author) Æ÷¹Ì¹Ì   Àå¼ö¹Î   À¯Àç¼ö   Weiwei BAO   Sumin Jang   Jaesoo Yoo  
¿ø¹®¼ö·Ïó(Citation) VOL 38 NO. 02 PP. 0126 ~ 0131 (2011. 04)
Çѱ۳»¿ë
(Korean Abstract)
Top-n ½ºÄ«À̶óÀÎ ÁúÀÇ´Â ´ÙÂ÷¿ø µ¥ÀÌÅÍ Áß¿¡ »ç¿ëÀÚÀÇ ¼±È£µµ¿¡ µû¶ó ½ºÄ«À̶óÀÎÀ» ±¸ÇÏ°í ±× ½ºÄ«À̶óÀÎ Áß¿¡¼­ º¸´Ù Àǹ̰¡ ÀÖ´Â n °³ÀÇ µ¥ÀÌÅ͸¦ ¿ä±¸ÇÏ´Â ÁúÀÇÀÌ´Ù. Top-n ½ºÄ«À̶óÀÎ ÁúÀÇ¿¡ °ü·ÃµÈ ¿¬±¸ Áß¿¡ ´ëÇ¥ÀûÀÎ ¹æ¹ýÀº k-dominant ½ºÄ«À̶óÀÎÀÌ´Ù. k-dominant ½ºÄ«À̶óÀÎÀº k °³ÀÇ Â÷¿ø ¿¡¼­ ´Ù¸¥ ¾î¶² µ¥ÀÌÅÍ¿¡ ÀÇÇØ Áö¹èµÇÁö ¾Ê´Â µ¥ÀÌÅ͸¦ ÀǹÌÇÑ´Ù. À̶§ k °ªÀÌ ÀÛÀ»¼ö·Ï º¸´Ù Àǹ̰¡ ÀÖ ´Â µ¥ÀÌÅÍÀÌ´Ù. ±×·¯³ª k-dominant ½ºÄ«À̶óÀÎÀ» ÀÌ¿ëÇÑ top-n ½ºÄ«À̶óÀÎ ÁúÀÇ Ã³¸®´Â k °ªÀ» 1ºÎÅÍ Áõ °¡½ÃÅ°¸é¼­ ¿øÇÏ´Â n °³¸¦ ±¸ÇÒ ¶§±îÁö k-dominant ½ºÄ«À̶óÀεéÀ» ¹Ýº¹À¸·Î ±¸ÇØ¾ß ÇÑ´Ù. µû¶ó¼­ ±âÁ¸ top-n ½ºÄ«À̶óÀÎ ÁúÀÇ Ã³¸®±â¹ýÀº È¿À²¼ºÀÌ ÁÁÁö ¾Ê´Ù. º» ³í¹®¿¡¼­´Â ºÎºÐÂ÷¿øµé¿¡ ÇØ´çÇÏ´Â ½ºÄ«À̶ó Àεé°ú k-dominant ½ºÄ«À̶óÀÎµé °£¿¡ ³ªÅ¸³ª´Â Ư¼ºÀ» ÀÌ¿ëÇÑ ´ÙÂ÷¿ø µ¥ÀÌÅÍ¿¡¼­ top-n ½ºÄ«À̶óÀÎ ÁúÀǸ¦ È¿À²ÀûÀ¸·Î ó¸®ÇÏ´Â »õ·Î¿î ±â¹ýÀ» Á¦¾ÈÇÑ´Ù. ´Ù¾çÇÑ ¼º´É Æò°¡¸¦ ÅëÇÏ¿© Á¦¾ÈÇÏ´Â ±â¹ýÀÇ ¿ì¼ö¼ºÀ» º¸¿©ÁØ´Ù.
¿µ¹®³»¿ë
(English Abstract)
The top-n skyline query is to find more interesting n points among skyline results retrieved according to user preference in multiple attributes data. The k-dominant skyline method is a representative one of the top-n skyline query processing methods. The k-dominant skyline includes points that are not dominated by any other points in terms of any k attributes. As the value k is smaller, the k-dominant skyline represents more important and meaningful data. However, the existing top-n skyline query processing method should repeatedly retrieve k-dominant skylines as the value k increases from 1 through n points. Therefore, the existing method is very inefficient. In this paper, we propose a new method that efficiently processes top-n skyline queries using the special relation of the sub-dimensional skyline and the k-dominant skyline. An extensive performance study verifies the merits of our proposed method.
Å°¿öµå(Keyword) Top-n ½ºÄ«À̶óÀΠ  k-dominant ½ºÄ«À̶óÀΠ  ´ÙÁß ¼Ó¼º µ¥ÀÌÅÍ   Top-n skyline   k-dominant skyline   multiple attributes data  
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