• "Using Context to Improve Predictive Models of Customers in Personalization Applications." IEEE Transactions on Knowledge and Data Engineering, 20(11), November 2008 (with M. Gorgoglione and C. Palmisano) [pdf].

• "User Profiling with Hierarchical Context: An e-Retailer Case Study." Sixth International and Multidisciplinary Conference on Modeling and Using Context (CONTEXT'07), Denmark, August 2007 (with M. Gorgoglione and C. Palmisano).[pdf]
  
  
• "Personalization in Context: Does Context Matter when Building Personalized Customer Models?" IEEE International Conference on Data Mining. December 2006 (with M. Gorgoglione and C. Palmisano)[pdf].

• "Incorporating Contextual Information in Recommender Systems Using a Multidimensional Approach". ACM Transactions on Information Systems, 23(1), January 2005 (with G. Adomavicius, R. Sankaranarayanan and S. Sen). [pdf]
  
  
• "Context-Aware Recommender Systems", 14th Workshop on Information Technologies and Systems (WITS), December 2004 (with G. Adomavicius, R. Sankaranarayanan and S. Sen).