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Current Result Document :
ÇѱÛÁ¦¸ñ(Korean Title) |
The XP-table: ´ÙÁß ¿¬¼Ó XPath ÁúÀÇÀÇ Áý´Ü 󸮸¦ À§ÇÑ ½ÇÇà½Ã°£ È¿À²ÀûÀÎ ¿µ¿ª ±â¹Ý ±¸Á¶Ã¼ |
¿µ¹®Á¦¸ñ(English Title) |
The XP-table: Runtime-efficient Region-based Structure for Collective Evaluation of Multiple Continuous XPath Queries |
ÀúÀÚ(Author) |
ÀÌÇöÈ£
ÀÌ¿ø¼®
Hyunho Lee
Wonsuk Lee
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¿ø¹®¼ö·Ïó(Citation) |
VOL 35 NO. 04 PP. 0307 ~ 0318 (2008. 08) |
Çѱ۳»¿ë (Korean Abstract) |
XML ¸Þ½ÃÁö Áß°è±â¿¡¼ÀÇ ÁÖ¿ä À̽´µé Áß Çϳª´Â XML ½ºÆ®¸²¿¡ ´ëÇÑ ´ÙÁß ¿¬¼Ó XPathÁúÀǸ¦ È¿À²ÀûÀ¸·Î ó¸®ÇÏ´Â ¹æ¾ÈÀÌ´Ù. º» ¿¬±¸´Â ÀÌ ¹®Á¦¸¦ È¿°úÀûÀ¸·Î ÇØ°áÇϱâ À§ÇÑ ½Ã½ºÅÛÀ» Á¦¾ÈÇÑ´Ù. Á¦¾ÈµÇ´Â ½Ã½ºÅÛ¿¡¼´Â XPath ÁúÀÇÁýÇÕÀ» XP-tableÀ̶ó´Â »õ·Î¿î ¿µ¿ª ±â¹Ý µ¥ÀÌŸ±¸Á¶·Î º¯È¯ÇÑ´Ù. XP-tableÀº ´ë»ó ÁúÀǵéÀÇ °øÅëÀûÀÎ ¼±ÅÃÁ¶°ÇµéÀ» °øÀ¯Çϸç, ½ÇÇà½Ã°£ ÁúÀÇ ¼öÇà Àü¿¡ ±¸ÃàµÈ´Ù. XML ½ºÆ®¸²Àº XP-table°úÀÇ È¿À²Àû ¸ÅĪÀ» À§ÇØ ½ºÆ®¸² ¸±·¹À̼Ç(SR)À¸·Î ½ÇÇà½Ã°£¿¡ º¯È¯µÈ´Ù. Á¦¾ÈµÈ ½Ã½ºÅÛ¿¡¼´Â XMLÀÇ ±¸Á¶Àû Ư¼ºÀ» ¹Ý¿µÇÑ XP-table°ú SR °£ÀÇ È¿°úÀûÀÎ ¸ÅĪ Àü·«ÀÌ Á¦½ÃµÈ´Ù. ¶ÇÇÑ, YFilter³ª LazyDFA¿Í °°Àº ±âÁ¸ ¹æ¹ý·Ð°úÀÇ ºñ±³¸¦ Æ÷ÇÔÇÑ ÀÏ·ÃÀÇ ½ÇÇèµéÀ» ÅëÇØ, Á¦¾ÈµÈ ½Ã½ºÅÛÀÌ ÁúÀÇ Ã³¸®ÀÇ ½ÇÇà½Ã°£ ºÎÇϸ¦ ÁÙÀÓÀ¸·Î½á ½Ã°£ È¿À²¼ºÀÌ Áß¿äÇÑ ½ºÆ®¸² ȯ°æ¿¡¼ÀÇ ¾ÈÁ¤Àû µ¥ÀÌŸ ó¸® ´É·ÂÀ» º¸¿©ÁØ´Ù.
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¿µ¹®³»¿ë (English Abstract) |
One of the primary issues confronting XML message brokers is the difficulty associated with processing a large set of continuous XPath queries over incoming XML streams. This paper proposes a novel system designed to present an effective solution to this problem. The proposed system transforms multiple XPath queries before their run-time into a new region-based data structure, called an XP-table, by sharing their common constraints. An XP-table is matched with a stream relation (SR) transformed from a target XML stream by a SAX parser. This arrangement is intended to minimize the runtime workload of continuous query processing. Also, system performance is estimated and verified through a variety of experiments, including comparisons with previous approaches such as YFilter and LazyDFA. The proposed system is practically linear-scalable and stable for evaluating a set of XPath queries in a continuous and timely fashion. |
Å°¿öµå(Keyword) |
XML ½ºÆ®¸²
´ÙÁß ¿¬¼Ó XPath ÁúÀÇ
XP-table
¿µ¿ª ±â¹Ý ±¸Á¶Ã¼
½ºÆ®¸² ¸±·¹ÀÌ¼Ç (SR)
XML stream
multiple continuous XPath queries
XP-table
region-based structure
stream relation (SR)
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