1. Abdelwahab, A., Matsuba, I., Horiuchi, Y., & Kuroiwa, S. (2012). Feature optimization approach for improving the collaborative filtering performance using particle swarm optimization 8, 435–450.
2. Towards a better understanding of context and context-awareness;Abowd,1999
3. Adomavicius, G., Sankaranarayanan, R., Sen, S., & Tuzhilin, A. (2005). Incorporating contextual information in recommender systems using a multidimensional approach 23, 103–145.
4. Towards more confident recommendations: Improving recommender systems using filtering approach based on rating variance;Adomavicius,2007
5. Multi-criteria recommender systems;Adomavicius,2015