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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 : 4 / 22 ÀÌÀü°Ç ÀÌÀü°Ç   ´ÙÀ½°Ç ´ÙÀ½°Ç

ÇѱÛÁ¦¸ñ(Korean Title) ´ë¿ë·® µ¥ÀÌÅÍ ºÐ¼®À» À§ÇÑ ¸Ê¸®µà½º ±â¹Ý kNN join ÁúÀÇó¸® ¾Ë°í¸®Áò
¿µ¹®Á¦¸ñ(English Title) A MapReduce-based kNN Join Query Processing Algorithm for Analyzing Large-scale Data
ÀúÀÚ(Author) ÀÌÇöÁ¶   ±èÅÂÈÆ   ÀåÀç¿ì   HyunJo Lee   TaeHoon Kim   JaeWoo Chang  
¿ø¹®¼ö·Ïó(Citation) VOL 42 NO. 04 PP. 0504 ~ 0511 (2015. 04)
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(Korean Abstract)
ÃÖ±Ù ¸ð¹ÙÀÏ ±â¼úÀÇ ¹ß´Þ ¹× ¼Ò¼È ³×Æ®¿öÅ© ¼­ºñ½ºÀÇ È°¼ºÈ­¸¦ ÅëÇØ »ç¿ëÀÚ µ¥ÀÌÅÍ°¡ ±Þ°ÝÈ÷ Áõ´ëµÇ°í ÀÖ´Ù. ÀÌ¿¡ µû¶ó ´ë¿ë·® µ¥ÀÌÅÍ¿¡ ´ëÇÑ È¿À²ÀûÀÎ µ¥ÀÌÅÍ ºÐ¼® ±â¹ý¿¡ ´ëÇÑ ¿¬±¸°¡ È°¹ßÈ÷ ÀÌ·ç¾îÁö°í ÀÖ´Ù. ´ëÇ¥ÀûÀÎ ´ë¿ë·® µ¥ÀÌÅÍ ºÐ¼® ±â¹ýÀ¸·Î´Â ¸Ê¸®µà½º ȯ°æ¿¡¼­ º¸·Î³ëÀÌ ´ÙÀ̾î±×·¥À» ÀÌ¿ëÇÑ k ÃÖ±ÙÁ¢Á¡ Á¶ÀÎ(VkNN-join) ¾Ë°í¸®ÁòÀÌ Á¸ÀçÇÑ´Ù. µ¥ÀÌÅÍÁýÇÕ R, S¿¡ ´ëÇØ, VkNN-join ¾Ë°í¸®ÁòÀº ºÎºÐÁýÇÕ Ri¿¡ ¿¬°üµÈ ºÎºÐÁýÇÕ Sj¸¸À» Èĺ¸Å½»ö ¿µ¿ªÀ¸·Î ¼±Á¤ÇÏ¿© ÁúÀÇ󸮸¦ ¼öÇàÇϱ⠶§¹®¿¡, ´ë¿ë·® µ¥ÀÌÅÍ¿¡ ´ëÇÑ join ÁúÀÇó¸® ½Ã°£À» °¨¼Ò½ÃÅ°´Â ÀåÁ¡ÀÌ Á¸ÀçÇÑ´Ù. ±×·¯³ª VkNN-joinÀº º¸·Î³ëÀÌ ´ÙÀ̾î±×·¥À» »ç¿ëÇϱ⠶§¹®¿¡, »öÀÎ ±¸Ãà ºñ¿ëÀÌ ³ôÀº ´ÜÁ¡ÀÌ Á¸ÀçÇÑ´Ù. ¾Æ¿ï·¯ kNN ÁúÀÇ󸮸¦ À§ÇÑ Èĺ¸ ¿µ¿ª ¼±Á¤ ½Ã k°ª¿¡ ºñ·ÊÇÏ¿© Èĺ¸¿µ¿ªÀÇ Å©±â°¡ Áõ°¡Çϱ⠶§¹®¿¡, kNN ¿¬»ê ¿À¹öÇìµå°¡ Áõ°¡ÇÏ´Â ¹®Á¦Á¡ÀÌ Á¸ÀçÇÑ´Ù. À̸¦ ÇØ°áÇϱâ À§ÇØ º» ³í¹®¿¡¼­´Â ´ë¿ë·® µ¥ÀÌÅÍ ºÐ¼®À» À§ÇÑ ¸Ê¸®µà½º ±â¹Ý kNN join ÁúÀÇó¸® ¾Ë°í¸®ÁòÀ» Á¦¾ÈÇÑ´Ù. Á¦¾ÈÇÏ´Â ÁúÀÇó¸® ¾Ë°í¸®ÁòÀº ½Ãµå ±â¹ÝÀÇ µ¿Àû ºÐÇÒÀ» ÅëÇØ »öÀα¸Á¶ ±¸Ãàºñ¿ëÀ» Àý°¨ÇÑ´Ù. ¶ÇÇÑ ½Ãµå °£ Æò±Õ °Å¸®¸¦ ±â¹ÝÀ¸·Î ÁúÀÇ Ã³¸® Èĺ¸ ¿µ¿ªÀ» ¼±Á¤ÇÔÀ¸·Î½á, kNN-join ÁúÀǸ¦ À§ÇÑ ¿¬»ê ¿À¹öÇìµå¸¦ °¨¼Ò½ÃŲ´Ù. ¾Æ¿ï·¯, ¼º´É Æò°¡¸¦ ÅëÇØ Á¦¾ÈÇÏ´Â ±â¹ýÀÌ ÁúÀÇó¸® ½Ã°£ Ãø¸é¿¡¼­ ±âÁ¸ ±â¹ý¿¡ ºñÇØ ¿ì¼öÇÔÀ» º¸ÀδÙ.
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(English Abstract)
Recently, the amount of data is rapidly increasing with the popularity of the SNS and the development of mobile technology. So, it has been actively studied for the effective data analysis schemes of the large amounts of data. One of the typical schemes is a Voronoi diagram based on kNN join algorithm (VkNN-join) using MapReduce. For two datasets R and S, VkNN-join can reduce the time of the join query processing involving big data because it selects the corresponding subset Sj for each Ri and processes the query with them. However, VkNN-join requires a high computational cost for constructing the Voronoi diagram. Moreover, the computational overhead of the VkNN-join is high because the number of the candidate cells increases as the value of the k increases. In order to solve these problems, we propose a MapReduce-based kNN-join query processing algorithm for analyzing the large amounts of data. Using the seed-based dynamic partitioning, our algorithm can reduce the overhead for constructing the index structure. Also, it can reduce the computational overhead to find the candidate partitions by selecting corresponding partitions with the average distance between two seeds. We show that our algorithm has better performance than the existing scheme in terms of the query processing time.
Å°¿öµå(Keyword) ºòµ¥ÀÌÅÍ ºÐ¼®   kÃÖ±ÙÁ¢Á¡ Á¶ÀÎ ÁúÀÇ󸮠  µ¿Àû µ¥ÀÌÅÍ ºÐÇÒ   ¸Ê¸®µà½º   ÇϵӠ  bigdata analysis   kNN join query processing   seed-based dynamic partitioning   mapreduce   Hadoop  
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