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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 : 2 / 6

ÇѱÛÁ¦¸ñ(Korean Title) µ¥ÀÌÅÍ Á᫐ ÀúÀå ȯ°æ¿¡¼­ ¼Ò½Ç µ¥ÀÌÅÍ º¸Á¤ ±â¹ýÀ» ÀÌ¿ëÇÑ ÀÎ-³×Æ®¿öÅ© º´ÇÕ ÁúÀÇ Ã³¸®
¿µ¹®Á¦¸ñ(English Title) In-network Aggregation Query Processing using the Data- Loss Correction Method in Data-Centric Storage Scheme
ÀúÀÚ(Author) ¹ÚÁØÈ£   ÀÌÈ¿ÁØ   ¼ºµ¿¿í   À¯Àç¼ö   Jun Ho Park   Hyo Joon Lee   Dong Ook Seong   Jae Soo Yoo  
¿ø¹®¼ö·Ïó(Citation) VOL 37 NO. 06 PP. 0315 ~ 0323 (2010. 12)
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(Korean Abstract)
¼¾¼­ ³×Æ®¿öÅ©¿¡¼­ ¹ß»ýÇÏ´Â µ¥ÀÌÅ͸¦ ÀúÀåÇÏ°í, È¿À²ÀûÀ¸·Î ÁúÀǸ¦ ó¸®ÇÏ´Â ±â¹ý¿¡ ´ëÇÑ ¸¹Àº ¿¬±¸°¡ ÀÌ·ç¾îÁö°í ÀÖ´Ù. ´ëÇ¥ÀûÀÎ ¿¬±¸·Î µ¥ÀÌÅÍ Á᫐ ÀúÀå ±â¹ýÀÌ ÀÖ´Ù. µ¥ÀÌÅÍ Á᫐ ÀúÀå ±â¹ýÀÇ °æ¿ì ÁúÀǸ¦ È¿°úÀûÀ¸·Î ó¸®Çϱâ À§ÇØ ¼öÁýÇÑ µ¥ÀÌÅÍ °ª¿¡ µû¶ó ÀúÀå µÉ ¼¾¼­ ³ëµå¸¦ ÁöÁ¤ÇÏ°í, ÁúÀÇ Ã³¸®¸¦ À§ÇØ ÁúÀÇ¿¡ ÇØ´çÇÏ´Â µ¥ÀÌÅ͸¦ ÀúÀåÇÏ´Â ³ëµå¿¡¼­¸¸ µ¥ÀÌÅ͸¦ ¼öÁýÇÑ´Ù. ÇÏÁö¸¸ ³ëµåÀÇ °áÇÔÀÌ ¹ß»ýÇÏ¸é °áÇÔ ³ëµå¿¡ ÀúÀå µÇ¾î ÀÖ´Â Àüü µ¥ÀÌÅÍ°¡ ¼Ò½Ç µÊ¿¡ µû¶ó ÁúÀÇ °á°ú Á¤È®µµ°¡ ÀúÇÏ µÇ´Â ¹®Á¦Á¡ÀÌ ¹ß»ýÇÑ´Ù. ÀÌ·¯ÇÑ ¹®Á¦¸¦ ÇØ°áÇϱâ À§ÇØ, º» ³í¹®¿¡¼­´Â µ¥ÀÌÅÍ Á᫐ ÀúÀå ±â¹ý¿¡¼­ ³ëµå °áÇÔ¿¡ µû¸¥ µ¥ÀÌÅÍ ¼Ò½ÇÀÌ ¹ß»ýÇÏ¿©µµ ³ôÀº Á¤È®µµ¸¦ º¸ÀÌ´Â ÀÎ-³×Æ®¿öÅ© º´ÇÕ ÁúÀÇ Ã³¸® ±â¹ýÀ» Á¦¾ÈÇÑ´Ù. µ¥ÀÌÅÍ ¼Ò½ÇÀÌ ¹ß»ý ÇÏ¿´À» °æ¿ì ¼±Çü ȸ±Í ºÐ¼® ±â¹ýÀ» ÀÌ¿ëÇÏ¿© ¼Ò½Ç µÈ ¿µ¿ª¿¡ ÇØ´çÇÏ´Â º¸Á¤ ¸ðµ¨À» »ý¼ºÇÏ°í, À̸¦ ÅëÇØ °¡»óÀÇ µ¥ÀÌÅ͸¦ Æ÷ÇÔÇÑ ÁúÀÇ °á°ú¸¦ ¹ÝȯÇÑ´Ù. Á¦¾ÈÇÏ´Â ±â¹ýÀÇ ¿ì¼ö¼ºÀ» º¸À̱â À§ÇØ ½Ã¹Ä·¹À̼ÇÀ» ÅëÇØ ¼Ò½Ç µ¥ÀÌÅÍ º¸Á¤ ±â¹ýÀ» Àû¿ëÇÑ KDDCS(E-KDDCS) ±â¹ý°ú ±âÁ¸ÀÇ µ¥ÀÌÅÍ Á᫐ ÀúÀå ±â¹ý°ú ¼º´ÉÀ» ºñ±³ÇÏ¿´´Ù. ±× °á°ú ±âÁ¸ ±â¹ý¿¡ ºñÇØ ÁúÀÇ °á°ú Á¤È®µµ°¡ Çâ»óµÇ¾ú°í, ÁúÀÇ Ã³¸® ½Ã ¿¡³ÊÁö ¼Ò¸ð¸¦ °¨¼Ò½ÃÄ×´Ù.
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(English Abstract)
In Wireless Sensor Networks (WSNs), various Data-Centric Storages (DCS) schemes have been proposed to store the collected data and to efficiently process a query. A DCS scheme assigns distributed data regions to sensor nodes and stores the collected data to the sensor which is responsible for the data region to process the query efficiently. However, since the whole data stored in a node will be lost when a fault of the node occurs, the accuracy of the query processing becomes low. In this paper, we propose an in-network aggregation query processing method that assures the high accuracy of query result in the case of data loss due to the faults of the nodes in the DCS scheme. When a data loss occurs, the proposed method creates a compensation model for an area of data loss using the linear regression technique and returns the result of the query including the virtual data. It guarantees the query result with high accuracy in spite of the faults of the nodes. To show the superiority of our proposed method, we compare E-KDDCS (KDDCS with the proposed method) with existing DCS schemes without the data-loss correction method. In the result, our proposed method increases accuracy and reduces query processing costs over the existing schemes.
Å°¿öµå(Keyword) ¼¾¼­³×Æ®¿öÅ©   µ¥ÀÌÅÍÁß½ÉÀúÀå±â¹ý   ÀÎ-³×Æ®¿öÅ©ÁúÀÇ󸮠  °áÇÔ   ¼±Çüȸ±ÍºÐ¼®   Wireless Sensor Networks   In-Network Query Processing   Data-Centric Storage Scheme   Linear Regression  
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