Download Advances in Multimedia Information Processing -- PCM 2010, by Guoping Qiu, Kin Man Lam, Hitoshi Kiya, Xiang-Yang Xue, PDF

By Guoping Qiu, Kin Man Lam, Hitoshi Kiya, Xiang-Yang Xue, C.-C. Jay Kuo, Michael S. Lew

This ebook constitutes the lawsuits of the eleventh Pacific Rim convention on Advances in Multimedia details Processing, held in Shanghai in September 2010.

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Additional info for Advances in Multimedia Information Processing -- PCM 2010, Part II: 11th Pacific Rim Conference on Multimedia, Shanghai, China, September 21-24, 2010 Proceedings

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Of the 24rd International Conference on Very Large Data Bases, pp. 194–205 (1998) 11. : Google news personalization: scalable online collaborative filtering. In: Proc. of the 16th International Conference on World Wide Web, pp. 271–280 (2007) 12. : iDistance: An Adaptive B+-tree Based Indexing Method for Nearest Neighbor Search. ACM Transactions on Data Base Systems 30(2), 364–397 (2005) 13. : Using Space-filling Curves for Multi-Dimensional Indexing. , Lings, B. ) BNCOD 2000. LNCS, vol. 1832, pp.

The sparse logistic regression is applied to obtain this vector. βˆj = arg min j β n T P λ|βpj | log(1 + exp(−β j x ˜i yi,j )) + (3) p=0 i=1 where x ˜i = (1, xTi )T . If |βpj |(0 ≤ p ≤ P ) is large, we can know that the pth visual word has strong association with the jth label. On the contrary, the lower |βpj |, the less association between the pth visual word and the jth tag. The interesting point of the discovery of association between visual words and tags by sparse logistic regression is that most of βpj (0 ≤ p ≤ P ) are set to zero in regression via the lasso.

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