TY - CONF ID - www200970 UR - http://www2009.eprints.org/70/ A1 - Chu, Wei A1 - Park, Seung-Taek Y1 - 2009/04// N2 - In Web-based services of dynamic content (such as news articles), recommender systems face the difficulty of timely identifying new items of high-quality and providing recommendations for new users. We propose a feature-based machine learning approach to personalized recommendation that is capable of handling the cold-start issue effectively. We maintain pro?les of content of interest, in which temporal characteristics of the content, e.g. popularity and freshness, are updated in real-time manner. We also maintain pro?les of users including demographic information and a summary of user activities within Yahoo! properties. Based on all features in user and content pro?les, we develop predictive bilinear regression models to provide accurate personalized recommendations of new items for both existing and new users. This approach results in an o?ine model with light computational overhead compared with other recommender systems that require online re-training. The proposed framework is general and ?exible for other personalized tasks. The superior performance of our approach is veri?ed on a large-scale data set collected from the Today-Module on Yahoo! Front Page, with comparison against six competitive approaches. TI - Personalized Recommendation on Dynamic Content Using Predictive Bilinear Models SP - 691 M2 - Madrid, Spain AV - public EP - 691 T2 - 18th International World Wide Web Conference ER -