YONG ZHENG

context-aware recommender systems context context-aware recommender systems cars differential context relaxation collaborative filtering matrix factorization dcr context suggestion differential context weighting outlier detection grey sheep emotion recsys context similarity cslim slim recommendation item splitting dcw pso contextual dimension user experience affective computing criteria chains multi-criteria information retrieval personality emotional reaction umap umap2016 tensor factorization carskit recommender system similarity contextual web intelligence context recommender poland warsaw multi-label classification context recommendation wic splitting approach cacf casa dcm mahout hadoop mapreduce slop one recsys2012 tag tagging prediction topic flow attention flow bpso particle swarm optimization feature selection hybrid recommendation experience discovery student activity social data