%0 Conference Paper %1 popescul01probabilistic %A Popescul, Alexandrin %A Ungar, Lyle %A Pennock, David %A Lawrence, Steve %B 17th Conference on Uncertainty in Artificial Intelligence %C Seattle, Washington %D 2001 %K clustering todo mode three 3mode network %P 437--444 %T Probabilistic Models for Unified Collaborative and Content-Based Recommendation in Sparse-Data Environments %U http://citeseer.ist.psu.edu/popescul01probabilistic.html %X Recommender systems leverage product and community information to target products to consumers. Researchers have developed collaborative recommenders, content-based recommenders, and a few hybrid systems. We propose a unified probabilistic framework for merging collaborative and content-based recommendations. We extend Hofmann's aspect model to incorporate three-way co-occurrence data among users, items, and item content. The relative influence of collaboration data versus content data is not...