• Àüü
  • ÀüÀÚ/Àü±â
  • Åë½Å
  • ÄÄÇ»ÅÍ
´Ý±â

»çÀÌÆ®¸Ê

Loading..

Please wait....

±¹³» ³í¹®Áö

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) ¹æ´ëÇÑ ½Ã°ø°£ IoT ¼¾¼­ µ¥ÀÌÅÍÀÇ È¿À²ÀûÀÎ °Ë»öÀ» À§ÇÑ Æ®¶óÀÌ ±â¹Ý »öÀÎ ¹æ¹ý
¿µ¹®Á¦¸ñ(English Title) A Trie-based Indexing Scheme for Efficient Retrieval of Massive Spatio-Temporal IoT Sensor Data
ÀúÀÚ(Author) ÃßÇÏ¿ø   ¼­¿µ±Õ   ÀÌ ¿ë   ¹Ú¹Î¿ì   Àå·¡¿µ   ÀÌ»óȯ   ¼Û»ç±¤   Hawon Chu   Young-Kyoon Suh   Ryong Lee   Minwoo Park   Rae-Young Jang   Sang-Hwan Lee   Sa-Kwang Song  
¿ø¹®¼ö·Ïó(Citation) VOL 47 NO. 12 PP. 1199 ~ 1207 (2020. 12)
Çѱ۳»¿ë
(Korean Abstract)
Åë½Å ±â¼ú°ú ÄÄÇ»Æà ´É·ÂÀÇ ¹ßÀüÀ¸·Î ÀÎÇØ »ç¹°ÀÎÅÍ³Ý ¼¾¼­°¡ ¿©·¯ ºÐ¾ß¿¡ º¸ÆíÈ­µÇ¸é¼­ ´ë·®ÀÇ ½Ã°ø°£ »ç¹° µ¥ÀÌÅÍ°¡ ²÷ÀÓ¾øÀÌ »ý¼ºµÇ°í ÀÖ´Ù. °íÂ÷¿øÀûÀÎ Ãß°¡ ºÐ¼®À» À§ÇØ, ±×·¯ÇÑ °Å´ëÇÑ ½Ã°ø°£ »ç¹° µ¥ÀÌÅ͸¦ ÀúÀå ½Ã½ºÅÛ¿¡ ¼öÁýÇÏ´Â °ÍÀº °íµµÈ­µÈ ÀúÀå ±â¼ú ´öºÐ¿¡ ±×¸® ¾î·ÆÁö ¾Ê°Ô µÇ¾ú´Ù. ±×·³¿¡µµ ºÒ±¸ÇÏ°í, »ç¹°µ¥ÀÌÅÍÀÇ °Å´ëÇÑ ¾ç°ú º¹ÀâÇÑ ½Ã°ø°£¼ºÀ¸·Î ÀÎÇØ ÁúÀÇµÈ »ç¹° µ¥ÀÌÅ͸¦ ½Å¼ÓÈ÷ ã¾Æ³»´Â °ÍÀº ¿©ÀüÈ÷ µµÀüÀûÀÎ ¹®Á¦·Î ¿©°ÜÁ® ¿Ô´Ù. º» ³í¹®Àº ÀÌ·¯ÇÑ ¹®Á¦Á¡À» ÇØ°áÇϱâ À§ÇØ ½Ã°ø°£¼ºÀ» °¡Áø ´ë¿ë·® »ç¹° µ¥ÀÌÅÍ¿¡ ´ëÇØ È¿À²ÀûÀÎ °Ë»öÀ» Áö¿øÇÏ´Â »öÀÎ ¹æ¹ýÀÎ ST-Trie¸¦ Á¦¾ÈÇÑ´Ù. ST-TrieÀÇ ÇÙ½É ¾ÆÀ̵ð¾î´Â ½Ã°ø°£ Áö¿ª¼ºÀ» °í·ÁÇÏ¿© 3Â÷¿ø ½Ã°ø°£ Á¤º¸¸¦ 1Â÷¿ø µ¥ÀÌÅÍ·Î ºÎȣȭÇÑ ´ÙÀ½, À̸¦ ³í¸®ÀûÀÎ Æ®¶óÀÌ(Trie) ±¸Á¶·Î Á¶Á÷ÇÏ´Â °ÍÀÌ´Ù. Á¦¾ÈµÈ ¹æ¹ýÀÎ ST-Trie¿¡ ´ëÇÑ ½ÇÁ¦ »ç¹°ÀÎÅÍ³Ý ¼¾¼­·ÎºÎÅÍ ¾òÀº µ¥ÀÌÅÍ ¼ÂµéÀ» ÀÌ¿ëÇÑ ½ÇÇè °á°ú, ST-Trie°¡ ÁúÀÇ ÀÀ´ä ½Ã°£¿¡ °üÇÏ¿© ºñ±³µÈ º¹ÇÕ »öÀκ¸´Ù ÃÖ´ë 92¹è ´õ ³ôÀº ¼º´ÉÀ» º¸¿´´Ù. ƯÈ÷, ¿ì¸®´Â ST-Trie°¡ ÁÖ¾îÁø ½Ã°£ ¹üÀ§°¡ Ä¿Áú¼ö·Ï ´õ È®À强 ÀÖ´Â °Ë»öÀ» ¼öÇàÇÏ¿´À½À» È®ÀÎÇÏ¿´´Ù.
¿µ¹®³»¿ë
(English Abstract)
As the Internet-of-Things (IoT) sensors with enhanced communication technology and computing power have been widely utilized in many areas, a great deal of spatio-temporal data has been continuously generated. Thanks to the remarkable advances in storage technology, it is possible to collect such massive data into storage systems for further high-dimensional analysis. That said, it has been very challenging to speedily locate stored IoT data in a reasonable amount of time due to the heavy volume and complex spatial and temporal attributes. To address this concern, we propose a novel scalable indexing scheme, termed ST-Trie, to support the efficient querying of massive spatialtemporal data collected from IoT sensors. The key idea of our scheme is to encode three-dimensional spatiotemporal information into one-dimensional keys in consideration of time and space locality and then organize the keys into a logical trie structure. In our experiments with real datasets, the proposed scheme outperformed composite indexes by an average of up to 92 times in terms of query response time. In particular, we confirmed that ST-Trie scaled much better than the compared indexes with increasing time ranges.
Å°¿öµå(Keyword) IoT ¼¾¼­ µ¥ÀÌÅÍ   S2   ½Ã°ø°£ »öÀÎ ±â¹ý   ÀÌÁø Æ®¶óÀÌ   1Â÷¿ø ºÎȣȭ   IoT sensor data   S2   spatio-temporal indexing   binary trie   one dimensional encoding  
ÆÄÀÏ÷ºÎ PDF ´Ù¿î·Îµå