| Vol-889 urn:nbn:de:0074-889-9 Copyright © 2012 for the individual papers by the papers' authors. Copying permitted only for private and academic purposes. This volume is published and copyrighted by its editors.

# CARS-2012
Context-Aware Recommender Systems 2012

### Proceedings of the 4th Workshop on Context-Aware Recommender Systems

#### in conjunction with the 6th ACM Conference on Recommender Systems (RecSys 2012)

### Dublin, Ireland, September 9, 2012.

Edited by

### Gediminas Adomavicius *
Linas Baltrunas **
Ernesto William de Luca ***
Tim Hussein +
Alexander Tuzhilin ++

* University of Minnesota, USA
** Telefonica Research, Spain
*** University of Applied Sciences Potsdam, Germany
+ University of Duisburg-Essen, Germany
++ New York University, USA

## Table of Contents

- Preface
  Gediminas Adomavicius, Linas Baltrunas, Ernesto William de Luca, Tim Hussein, Alexander Tuzhilin
- Contextualizing Recommendations (keynote)
  Francesco Ricci

1. Optimal Feature Selection for Context-Aware Recommendation Using Differential Relaxation
   Yong Zheng, Robin Burke, Bamshad Mobasher
2. Relevant Context in a Movie Recommender System: Users' Opinion vs. Statistical Detection
   Ante Odic, Marko Tkalcic, Jurij Franc Tasic, Andrej Kosir
3. Improving Novelty in Streaming Recommendation Using a Context Model
   Doina Alexandra Dumitrescu, Simone Santini
4. Towards a Context-Aware Photo Recommender System
   Fabricio Lemos, Rafael Carmo, Windson Viana, Rossana Andrade
5. Context and Intention-Awareness in POIs Recommender Systems
   Hernani Costa, Barbara Furtado, Durval Pires, Luis Macedo, F. Amilcar Cardoso
6. Evaluation and User Acceptance Issues of a Bayesian-Classifier-Based TV Recommendation System
   Benedikt Engelbert, Karsten Morisse, Kai-Christoph Hamborg
7. From Online Browsing to Offline Purchases: Analyzing Contextual Information in the Retail Business
   Simon Chan, Licia Capra

2-Sep-2012: submitted by Tim Hussein
4-Sep-2012: published on CEUR-WS.org