Yueshen Xu

text mining information retrieval clustering recommendation machine learning data mining context recommender system matrix factorization topic model social networks prediction collaborative filtering side information search engine course application tag social network 上下文 本科课件 推荐系统 标签 in chinese classification gaussian sparsity kmeans sampling chinese nlp statistics non-parametric bayesian learning hdp dirichlet process gaussian process dpm gibbs sampling user generated content conference information system computer science acoustic model distributed data streams aggregation data streams aggregation tcp ip linux conclusion sap stream data clustream hmm bbn hmm bbf sigir 2011