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Spectral analysis of a blogosphere
- Kim, Sang-Wook;
- Kim, Ki-Nam;
- Faloutsos, Christos;
- Lee, Joon-Ho
Citations
SCOPUS
2초록
A blogosphere is a representative example of online social networks. In this paper, we address spectral 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 also found hub blogs and authoritative posts within each community. The PARAFAC decomposition also succeeded in extracting more communities of finer granules than the SVD. Also, the PARAFAC decomposition could identify the dominant keywords in addition to the hub blogs and authoritative posts honored in each community. ? 2011 ACM.
키워드
blogosphere; matrix factorization; parafac decomposition; svd; tensor factorization; Blogospheres; matrix; Matrix factorizations; Online social networks; PARAFAC decomposition; tensor factorization; Factorization; Knowledge management; Matrix algebra; Singular value decomposition; Social networking (online); Spectrum analysis; Tensors; Blogs
- 제목
- Spectral analysis of a blogosphere
- 저자
- Kim, Sang-Wook; Kim, Ki-Nam; Faloutsos, Christos; Lee, Joon-Ho
- 발행일
- 2011-10
- 유형
- Conference Paper
- 저널명
- International Conference on Information and Knowledge Management, Proceedings
- 페이지
- 2145 ~ 2148