A stereotypes-based hybrid recommender system for media items

Guy Shani, Amnon Meisles, Yan Gleyzer, Lior Rokach, David Ben-Shimon

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

13 Scopus citations


Many Recommender Systems use either Collaborative Filtering (CF) or Content-Based (CB) techniques to receive recommendations for products. Both approaches have advantages and weaknesses. Combining the two approaches together can overcome most weaknesses. However, most hybrid systems combine the two methods in an ad-hoc manner. In this paper we present an hybrid approach for recommendations, where a user profile is a weighted combination of user stereotypes, created automatically through a clustering process. Each stereotype is defined by an ontology of item attributes. Our approach provides good recommendations for items that were rated in the past and is also able to handle new items that were never observed by the system. Our algorithm is implemented in a commercial system for recommending media items. The system is envisioned to function as personalized media (audio, video, print) service within mobile phones, online media portals, sling boxes, etc. It is currently under development within Deutsche Telekom Laboratories - Innovations of Integrated Communication projects.

Original languageEnglish
Title of host publicationIntelligent Techniques for Web Personalization and Recommender Systems in E-Commerce - Papers from the 2007 AAAI Joint Workshop, Technical Report
Number of pages8
StatePublished - 1 Dec 2007
Event2007 AAAI Workshops - Vancouver, BC, Canada
Duration: 23 Jul 200723 Jul 2007

Publication series

NameAAAI Workshop - Technical Report


Conference2007 AAAI Workshops
CityVancouver, BC

ASJC Scopus subject areas

  • Engineering (all)


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