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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 : 5 / 5 ÀÌÀü°Ç ÀÌÀü°Ç

ÇѱÛÁ¦¸ñ(Korean Title) SVD¿Í PARAFAC ºÐÇظ¦ ÀÌ¿ëÇÑ ºí·Î±× °ø°£ ºÐ¼®
¿µ¹®Á¦¸ñ(English Title) An Analysis of a Blogosphere using SVD and PARAFAC Decomposition
ÀúÀÚ(Author) ±è±â³²   ±è»ó¿í   ±èÁø¿ì   Christos Faloutsos   ÀÌÁØÈ£   Ki-Nam Kim   Sang-Wook Kim   Jin-Woo Kim   Christos Faloutsos   Joon-Ho Lee  
¿ø¹®¼ö·Ïó(Citation) VOL 39 NO. 03 PP. 0159 ~ 0165 (2012. 06)
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(Korean Abstract)
ºí·Î±× °ø°£Àº ´ëÇ¥ÀûÀÎ ¿Â¶óÀÎ »çȸ ¿¬°á¸Á Áß ÇϳªÀÌ´Ù. »çȸ ¿¬°á¸Á ºÐ¼®¿¡¼­ Ä¿¹Â´ÏƼ ±¸Á¶ ÆľÇÀº Áß¿äÇÑ ¿¬±¸ÀÌ´Ù. º» ³í¹®¿¡¼­´Â ºí·Î±× °ø°£ÀÇ ºÐ¼®¿¡ ´ëÇÏ¿© ³íÇÑ´Ù. º» ³í¹®¿¡¼­´Â ½ÇÁ¦ ºí·Î±× °ø°£À» Çà·Ä(matrix)°ú ÅÙ¼­(tensor)·Î Ç¥ÇöÇÏ°í SVD(singular value decomposition)¿Í PARAFAC (parallel factor analysis) ºÐÇظ¦ ÀÌ¿ëÇÏ¿© ºÐ¼®ÇÑ´Ù. ºÐ¼® °á°ú¿¡ µû¸£¸é, SVD´Â ƯÁ¤ ÁÖÁ¦¸¦ ³ªÅ¸³»´Â Ä¿¹Â´ÏƼµéÀ» ½Äº°ÇßÀ¸¸ç, °¢ Ä¿¹Â´ÏƼ¿¡¼­ ¿µÇâ·Â ÀÖ´Â ºí·Î±×µé°ú ±ÇÀ§ ÀÖ´Â Æ÷½ºÆ®µéÀ» ½Äº°Çß´Ù. PARAFAC ºÐÇØ´Â SVD¿¡ ºñÇØ ´õ ¸¹Àº Ä¿¹Â´ÏƼµéÀ» ½Äº°ÇÏ¿´´Ù. ¶ÇÇÑ, PARAFAC ºÐÇØ´Â °¢ Ä¿¹Â´ÏƼÀÇ ¿µÇâ·Â ÀÖ´Â ºí·Î±×µé°ú ±ÇÀ§ ÀÖ´Â Æ÷½ºÆ®µé»Ó¸¸ ¾Æ´Ï¶ó ¿µÇâ·Â ÀÖ´Â Å°¿öµåµé±îÁö ½Äº°ÇÒ ¼ö ÀÖ¾ú´Ù.
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(English Abstract)
A blogosphere is a representative example of online social networks. Identifying a community structure is an important issue in social network analysis. In this paper, we address an analysis of a blogosphere. We model a real-world blogosphere as a matrix and a tensor, and then analyze it by using the SVD and PARAFAC decomposition. According to the results, the SVD successfully identified communities, each of which focuses on a specific topic, and found hub blogs and authoritative posts within each community. The PARAFAC decomposition also succeeded in extracting more communities of finer granules than the SVD. In addition, the PARAFAC decomposition could identify the dominant keywords in addition to the hub blogs and authoritative posts honored in each community.
Å°¿öµå(Keyword) ºí·Î±× °ø°£   Çà·Ä ºÐÇØ   ÅÙ¼­ ºÐÇØ   SVD   PARAFAC decomposition   Blogosphere   matrix factorization   tensor factorization   SVD   PARAFAC decomposition  
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