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Ȩ Ȩ > ¿¬±¸¹®Çå > ±¹³» ³í¹®Áö > Çѱ¹Á¤º¸Ã³¸®ÇÐȸ ³í¹®Áö > Á¤º¸Ã³¸®ÇÐȸ ³í¹®Áö ¼ÒÇÁÆ®¿þ¾î ¹× µ¥ÀÌÅÍ °øÇÐ

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Current Result Document :

ÇѱÛÁ¦¸ñ(Korean Title) ±ËÀû µ¥ÀÌÅÍ ½ºÆ®¸²¿¡¼­ µ¿¹Ý ±×·ì Ž»ö ±â¹ý
¿µ¹®Á¦¸ñ(English Title) A Technique for Detecting Companion Groups from Trajectory Data Streams
ÀúÀÚ(Author) °­¼öÇö   À̱â¿ë   Suhyun Kang   Ki Yong Lee  
¿ø¹®¼ö·Ïó(Citation) VOL 08 NO. 12 PP. 0473 ~ 0482 (2019. 12)
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(Korean Abstract)
À̵¿ °´Ã¼ÀÇ µ¥ÀÌÅÍ ½ºÆ®¸²À¸·ÎºÎÅÍ °´Ã¼µéÀÇ ±ËÀûÀ» ºÐ¼®ÇÏ´Â ¿¬±¸´Â ÀÌ¹Ì ÀÌ·ç¾îÁø ¹Ù°¡ ÀÖ´Ù. ±× Áß °°ÀÌ ¿òÁ÷ÀÌ´Â °´Ã¼µéÀÇ ±×·ì, Áï µ¿¹Ý ±×·ìÀ» ã´Â ¿¬±¸µµ ÀÌ¹Ì Á¸ÀçÇÑ´Ù, ÀÌµé ´ëºÎºÐÀº ¼­·Î °¡±îÀÌ Á¸ÀçÇÏ´Â °´Ã¼µéÀÇ ±×·ìÀ» Ž»öÇϱâ À§ÇØ ±âÁ¸ÀÇ Å¬·¯½ºÅ͸µ ±â¹ýÀ» »ç¿ëÇÑ´Ù. ÇÏÁö¸¸ Ŭ·¯½ºÅ͸µ¿¡ ±â¹ÝÇÑ ¹æ¹ýµéÀº Á¤È®ÇÑ Å¬·¯½ºÅÍÀÇ ¼ö¸¦ ¹Ì¸® ¾Ë ¼ö ¾ø°Å³ª Ŭ·¯½ºÅÍÀÇ ¸ð¾çÀ̳ª Å©±â¸¦ Á¦¾îÇÒ ¼ö ¾ø±â ¶§¹®¿¡ Á¤È®ÇÑ µ¿¹Ý ±×·ìÀ» ã±â ¾î·Á¿î °æ¿ì°¡ ¸¹´Ù. º» ³í¹®Àº ½Ç½Ã°£À¸·Î À¯ÀԵǴ ±ËÀû µ¥ÀÌÅÍ ½ºÆ®¸²¿¡¼­ ±âÁ¸ÀÇ Å¬·¯½ºÅ͸µ ±â¹ýÀÌ ¾Æ´Ï¶ó »ç¿ëÀÚ°¡ ÁöÁ¤ÇÑ °Å¸®¸¦ ±â¹ÝÀ¸·Î µ¿¹Ý ±×·ìÀ» Ž»öÇÏ´Â »õ·Î¿î ¹æ¹ýÀ» Á¦¾ÈÇÑ´Ù. º» ³í¹®¿¡¼­ Á¦¾ÈÇÏ´Â ±â¹ýÀº ¼­·Î °¡±îÀÌ Á¸ÀçÇÏ´Â °´Ã¼µéÀÇ ±×·ìÀ» ÁÖ±âÀûÀ¸·Î Ž»öÇϸç, ÀÌ ¶§ »ç¿ëÀÚ°¡ ÁöÁ¤ÇÑ °Å¸® ³»¿¡ Á¸ÀçÇÏ´Â °´Ã¼µéÀÇ ±×·ìÀ» ¸Å¿ì È¿À²ÀûÀ¸·Î ã¾Æ³»´Â ±â¹ýÀ» »ç¿ëÇÑ´Ù. ¶ÇÇÑ µ¿¹Ý ±×·ì ¹× ±×ÀÇ ±ËÀû¸¸À» ¹ÝȯÇÏ´Â ±âÁ¸ ¹æ¹ý°ú ´Þ¸® Á¦¾È ¹æ¹ýÀº µ¿¹Ý ±×·ìÀÇ »ý¼º ½Ã°£°ú Áö¼Ó ½Ã°£µµ °°ÀÌ ¾Ë·ÁÁØ´Ù. º» ³í¹®¿¡¼­´Â ´Ù¾çÇÑ ½ÇÇèÀ» ÅëÇØ Á¦¾È ¹æ¹ýÀÌ µ¿¹Ý ±×·ìÀ» Á¤È®ÇÏ°í ¸Å¿ì È¿À²ÀûÀ¸·Î Ž»öÇÒ ¼ö ÀÖÀ½À» º¸ÀδÙ.
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(English Abstract)
There have already been studies analyzing the trajectories of objects from data streams of moving objects. Among those studies, there are also studies to discover groups of objects that move together, called companion groups. Most studies to discover companion groups use existing clustering techniques to find groups of objects close to each other. However, these clustering-based methods are often difficult to find the right companion groups because the number of clusters is unpredictable in advance or the shape or size of clusters is hard to control. In this study, we propose a new method that discovers companion groups based on the distance specified by the user. The proposed method does not apply the existing clustering techniques but periodically determines the groups of objects close to each other, by using a technique that efficiently finds the groups of objects that exist within the user-specified distance. Furthermore, unlike the existing methods that return only companion groups and their trajectories, the proposed method also returns their appearance and disappearance time. Through various experiments, we show that the proposed method can detect companion groups correctly and very efficiently.
Å°¿öµå(Keyword) Trajectory Data Stream   µ¥ÀÌÅÍ ½ºÆ®¸² ¸¶ÀÌ´×   Companion Groups Detection   Stream Data Mining   ±ËÀû µ¥ÀÌÅÍ ½ºÆ®¸²   µ¿¹Ý ±×·ì Ž»ö  
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