Á¤º¸°úÇÐȸ ÄÄÇ»ÆÃÀÇ ½ÇÁ¦ ³í¹®Áö (KIISE Transactions on Computing Practices)
Current Result Document :
ÇѱÛÁ¦¸ñ(Korean Title) |
¸Ê¸®µà½º¿¡¼ ºòµ¥ÀÌÅÍ ºÐ¼®À» À§ÇÑ ´ÙÁß Group-by ÁúÀÇÀÇ È¿À²ÀûÀΠó¸® ±â¹ý |
¿µ¹®Á¦¸ñ(English Title) |
Efficient Processing of Multiple Group-by Queries in MapReduce for Big Data Analysis |
ÀúÀÚ(Author) |
¹ÚÀºÁÖ
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½ÉÁØÈ£
Eunju Park
Sojeong Park
Sohyun Oh
Hyejin Choi
Ki Yong Lee
Junho Shim
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¿ø¹®¼ö·Ïó(Citation) |
VOL 21 NO. 05 PP. 0387 ~ 0392 (2015. 05) |
Çѱ۳»¿ë (Korean Abstract) |
¸Ê¸®µà½º(MapReduce)´Â ´ë¿ë·®ÀÇ µ¥ÀÌÅ͸¦ ´Ù¼öÀÇ ÄÄÇ»ÅÍ·Î º´·Ä ó¸®Çϱâ À§ÇØ »ç¿ëµÇ´Â ÇÁ·¹ÀÓ¿öÅ©ÀÌ´Ù. Group-by ÁúÀÇ´Â µ¥ÀÌÅ͸¦ ÁöÁ¤µÈ ¾ÖÆ®¸®ºäÆ®µéÀÇ °ª¿¡ µû¶ó ±×·ìÈÇÏ°í, °¢ ±×·ì¿¡ ´ëÇØ ÁöÁ¤µÈ Áý°è ÇÔ¼ö °ªÀ» ±¸ÇÏ´Â ÁúÀÇÀÌ´Ù. º» ³í¹®¿¡¼´Â µÑ ÀÌ»óÀÇ group-by ÁúÀÇ°¡ µ¿½Ã¿¡ ¿äûµÇ¾úÀ» ¶§, À̵éÀ» ¸Ê¸®µà½º¸¦ »ç¿ëÇÏ¿© È¿À²ÀûÀ¸·Î ó¸®ÇÏ´Â ±â¹ýÀ» Á¦¾ÈÇÑ´Ù. Á¦¾È ±â¹ýÀº °¢ group-by ÁúÀǸ¦ µ¶¸³ÀûÀ¸·Î °è»êÇÏ´Â ´ë½Å, ÃÑ ¼öÇàºñ¿ëÀ» ÁÙÀ̱â À§ÇØ Çϳª ÀÌ»óÀÇ ¸Ê¸®µà½º ÀâÀ» ÅëÇØ ´Ü°èÀûÀ¸·Î °è»êÇÑ´Ù. ¼º´É Æò°¡ ½ÇÇèÀ» ÅëÇØ, Á¦¾È ±â¹ýÀÌ °¢ group-by ÁúÀǸ¦ µ¶¸³ÀûÀ¸·Î °è»êÇÏ´Â ´Ü¼ø ¹æ¹ý¿¡ ºñÇØ ÁÁÀº ¼º´ÉÀ» °¡ÁüÀ» º¸ÀδÙ.
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¿µ¹®³»¿ë (English Abstract) |
MapReduce is a framework used to process large data sets in parallel on a large cluster. A group-by query is a query that partitions the input data into groups based on the values of the specified attributes, and then evaluates the value of the specified aggregate function for each group. In this paper, we propose an efficient method for processing multiple group-by queries using MapReduce. Instead of computing each group-by query independently, the proposed method computes multiple group-by queries in stages with one or more MapReduce jobs in order to reduce the total execution cost. We compared the performance of this method with the performance of a less sophisticated method that computes each group-by query independently. This comparison showed that the proposed method offers better performance in terms of execution time.
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Å°¿öµå(Keyword) |
¸Ê¸®µà½º
Group-by ÁúÀÇ
´ÙÁß ÁúÀÇ ÃÖÀûÈ
ºòµ¥ÀÌÅÍ
MapReduce
group-by query
multiple query optimization
big data
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