Title

Author Topic Model-Based Collaborative Filtering for Personalized POI Recommendations

Publication Type

Journal Article

Publication Date

6-2015

Abstract

From social media has emerged continuous needs for automatic travel recommendations. Collaborative filtering (CF) is the most well-known approach. However, existing approaches generally suffer from various weaknesses. For example, sparsity can significantly degrade the performance of traditional CF. If a user only visits very few locations, accurate similar user identification becomes very challenging due to lack of sufficient information for effective inference. Moreover, existing recommendation approaches often ignore rich user information like textual descriptions of photos which can reflect users' travel preferences. The topic model (TM) method is an effective way to solve the "sparsity problem," but is still far from satisfactory. In this paper, an author topic model-based collaborative filtering (ATCF) method is proposed to facilitate comprehensive points of interest (POIs) recommendations for social users. In our approach, user preference topics, such as cultural, cityscape, or landmark, are extracted from the geo-tag constrained textual description of photos via the author topic model instead of only from the geo-tags (GPS locations). Advantages and superior performance of our approach are demonstrated by extensive experiments on a large collection of data.

Keywords

Data mining, recommendation system, text mining, travel recommendation

Discipline

Databases and Information Systems | Social Media | Tourism and Travel

Research Areas

Data Management and Analytics

Publication

IEEE Transactions on Multimedia

Volume

17

Issue

6

First Page

907

Last Page

918

ISSN

1520-9210

Identifier

10.1109/TMM.2015.2417506

Publisher

Institute of Electrical and Electronics Engineers (IEEE)

Additional URL

http://dx.doi.org/10.1109/TMM.2015.2417506

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