CF框架下物质扩散算法改进策略及研究.pdf

协同过滤框架下物质扩散算法的改进 董强dongq@ 电子科技大学互联网科学中心 2014年11月30日 Recommender Systems • Collaborative Filtering • Content-based methods 1 • Network-based methods • Hybrid methods • Similarity-based methods • Diffusion-based methods 2 • Dimensionality reduction techniques • Social filtering • Meta approaches References: [1] 刘建国,周涛,汪秉宏. 个性化推荐系统研究进展[J]. 自然科学进展, 2009, 19(1):1-15. [2] Linyuan Lü, Matúš Medo,et al, Recommender systems, Physics Reports, Volume 519, Issue 1, October 2012, Pages 1-49, ISSN 0370-1573. Diffusion vs. Collaborative Filtering Mass Diffusion Collaborative Filtering MD is a kind of ICF m 1 m a a Salton 1   l l s al al w   1   k l 1 kl k k 2 l 1   n n a m a a    f a w i l l       i i  1  1 k l 1 kl n n a m f a ssalton  i a a      i i 1 l l  1  1 k k 2 l 1