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Contextualized Relevance Evaluation of Geographic Information for Mobile Users in Location-Based Social Networks

GIScience Research Group, Institute of Geography, Heidelberg University, Heidelberg 69120, Germany
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Academic Editors: Norbert Bartelme and Wolfgang Kainz
ISPRS Int. J. Geo-Inf. 2015, 4(2), 799-814; https://doi.org/10.3390/ijgi4020799
Received: 25 June 2014 / Accepted: 24 April 2015 / Published: 5 May 2015
The relevance of geographic information to mobile users must be evaluated by taking into account the usage context. This paper assumes that emerging Location-based Social Networks (LBSNs) contain contextual information rich enough to be used in order to contextualize such an evaluation process. This assumption is demonstrated through an exploratory analysis of a Foursquare check-in dataset, which reveals the impacts of two contextual factors—temporal and spatial—on mobility patterns. This paper then proposes an approach that may be used to contextualize the evaluation of geographic information’s relevance. The proposed algorithm links a priori relevance to the contextualized relevance using the hidden impacts of contextual factors. Improved performance from the experiments carried out confirms the validity of the proposed approach, as well as the benefits of utilizing contextual information within the relevance evaluation process. View Full-Text
Keywords: contextualization; geographic relevance; location-based social networks; mobility pattern contextualization; geographic relevance; location-based social networks; mobility pattern
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Li, M.; Sun, Y.; Fan, H. Contextualized Relevance Evaluation of Geographic Information for Mobile Users in Location-Based Social Networks. ISPRS Int. J. Geo-Inf. 2015, 4, 799-814.

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