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Experiences from Integrating Collaborative Filtering in a Mobile City Guide

Experiences from Integrating Collaborative Filtering in a Mobile City Guide

Wolfgang Woerndl, Korbinian Moegele, Vivian Prinz
Copyright: © 2012 |Pages: 32
ISBN13: 9781466600805|ISBN10: 1466600802|EISBN13: 9781466600812
DOI: 10.4018/978-1-4666-0080-5.ch005
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MLA

Woerndl, Wolfgang, et al. "Experiences from Integrating Collaborative Filtering in a Mobile City Guide." Mobile Computing Techniques in Emerging Markets: Systems, Applications and Services, edited by A.V. Senthil Kumar and Hakikur Rahman, IGI Global, 2012, pp. 126-157. https://doi.org/10.4018/978-1-4666-0080-5.ch005

APA

Woerndl, W., Moegele, K., & Prinz, V. (2012). Experiences from Integrating Collaborative Filtering in a Mobile City Guide. In A. Kumar & H. Rahman (Eds.), Mobile Computing Techniques in Emerging Markets: Systems, Applications and Services (pp. 126-157). IGI Global. https://doi.org/10.4018/978-1-4666-0080-5.ch005

Chicago

Woerndl, Wolfgang, Korbinian Moegele, and Vivian Prinz. "Experiences from Integrating Collaborative Filtering in a Mobile City Guide." In Mobile Computing Techniques in Emerging Markets: Systems, Applications and Services, edited by A.V. Senthil Kumar and Hakikur Rahman, 126-157. Hershey, PA: IGI Global, 2012. https://doi.org/10.4018/978-1-4666-0080-5.ch005

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Abstract

This chapter presents an approach to extend a real world mobile tourist guide running on personal digital assistants (PDAs) with collaborative filtering. The system builds a model of item similarities based on explicit and implicit ratings. This model is then utilized to generate recommendations in several ways. The approach integrates the current user location as context. Experiences gained in two field studies are reported. In the first one, 30 participants – real tourists visiting Prague – used the recommender function and were asked to fill out a questionnaire with promising results. In a second field study analyzing usage log files, an improvement of recommendations based on the collaborative filter in comparison to the pure location-based filter used before was discovered. In addition, recommendations based on implicit ratings derived from audio playback duration outperformed the model based on explicit ratings.

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