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Ȩ Ȩ > ¿¬±¸¹®Çå > ±¹³» ³í¹®Áö > Çѱ¹Á¤º¸°úÇÐȸ ³í¹®Áö > Á¤º¸°úÇÐȸ³í¹®Áö (Journal of KIISE)

Á¤º¸°úÇÐȸ³í¹®Áö (Journal of KIISE)

Current Result Document :

ÇѱÛÁ¦¸ñ(Korean Title) ¸Ê¸®µà½º¸¦ ÀÌ¿ëÇÑ ±×¸®µå ±â¹Ý À妽º »ý¼º ¹× k-NN Á¶ÀÎ ÁúÀÇ Ã³¸® ¾Ë°í¸®Áò
¿µ¹®Á¦¸ñ(English Title) Grid-based Index Generation and k-nearest-neighbor Join Query-processing Algorithm using MapReduce
ÀúÀÚ(Author) Àå¹Ì¿µ   ÀåÀç¿ì   Miyoung Jang   Jae Woo Chang  
¿ø¹®¼ö·Ïó(Citation) VOL 42 NO. 11 PP. 1303 ~ 1313 (2015. 11)
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(Korean Abstract)
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(English Abstract)
MapReduce provides high levels of system scalability and fault tolerance for large-size data processing. A MapReduce-based k-nearest-neighbor(k-NN) join algorithm seeks to produce the k nearest-neighbors of each point of a dataset from another dataset. The algorithm has been considered important in bigdata analysis. However, the existing k-NN join query-processing algorithm suffers from a high index-construction cost that makes it unsuitable for the processing of bigdata. To solve the corresponding problems, we propose a new grid-based, k-NN join query-processing algorithm. Our algorithm retrieves only the neighboring data from a query cell and sends them to each MapReduce task, making it possible to improve the overhead data transmission and computation. Our performance analysis shows that our algorithm outperforms the existing scheme by up to seven-fold in terms of the query-processing time, while also achieving high extent of query-result accuracy.
Å°¿öµå(Keyword) µ¥ÀÌÅÍ ºÐ»ê ó¸® ¾Ë°í¸®Áò   ¸Ê¸®µà½º   k-ÃÖ±ÙÁ¢Á¡ Á¶ÀÎ ÁúÀÇó¸® ¾Ë°í¸®Áò   ±×¸®µå À妽º  
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