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Proceedings ArticleDOI

Location recommendation for location-based social networks

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TLDR
A friend-based collaborative filtering approach for location recommendation based on collaborative ratings of places made by social friends is developed, and a variant of FCF technique, namely Geo-Measured FCF (GM-FCF), based on heuristics derived from observed geospatial characteristics in the Foursquare dataset is proposed.
Abstract
In this paper, we study the research issues in realizing location recommendation services for large-scale location-based social networks, by exploiting the social and geographical characteristics of users and locations/places. Through our analysis on a dataset collected from Foursquare, a popular location-based social networking system, we observe that there exists strong social and geospatial ties among users and their favorite locations/places in the system. Accordingly, we develop a friend-based collaborative filtering (FCF) approach for location recommendation based on collaborative ratings of places made by social friends. Moreover, we propose a variant of FCF technique, namely Geo-Measured FCF (GM-FCF), based on heuristics derived from observed geospatial characteristics in the Foursquare dataset. Finally, the evaluation results show that the proposed family of FCF techniques holds comparable recommendation effectiveness against the state-of-the-art recommendation algorithms, while incurring significantly lower computational overhead. Meanwhile, the GM-FCF provides additional flexibility in tradeoff between recommendation effectiveness and computational overhead.

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Proceedings ArticleDOI

Exploiting geographical influence for collaborative point-of-interest recommendation

TL;DR: This paper argues that the geographical influence among POIs plays an important role in user check-in behaviors and model it by power law distribution, and develops a collaborative recommendation algorithm based on geographical influence based on naive Bayesian.
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Time-aware point-of-interest recommendation

TL;DR: This paper defines a new problem, namely, the time-aware POI recommendation, to recommend POIs for a given user at a specified time in a day, and develops a collaborative recommendation model that is able to incorporate temporal information.
Proceedings ArticleDOI

Location-based and preference-aware recommendation using sparse geo-social networking data

TL;DR: A location-based and preference-aware recommender system that offers a particular user a set of venues within a geospatial range with the consideration of both: user preferences and social opinions, which are automatically learned from her location history.
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Fused matrix factorization with geographical and social influence in location-based social networks

TL;DR: This paper is the first to fuse MF with geographical and social influence for POI recommendation in LBSNs via modeling the probability of a user's check-in on a location as a Multicenter Gaussian Model (MGM) and fuse the geographical influence into a generalized matrix factorization framework.
Journal ArticleDOI

A new user similarity model to improve the accuracy of collaborative filtering

TL;DR: A new user similarity model is presented to improve the recommendation performance when only few ratings are available to calculate the similarities for each user, which not only considers the local context information of user ratings, but also the global preference of user behavior.
References
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TL;DR: A factor analysis approach based on probabilistic matrix factorization to solve the data sparsity and poor prediction accuracy problems by employing both users' social network information and rating records is proposed.
Proceedings ArticleDOI

Fast Random Walk with Restart and Its Applications

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Proceedings ArticleDOI

TrustWalker: a random walk model for combining trust-based and item-based recommendation

TL;DR: A random walk model combining the trust-based and the collaborative filtering approach for recommendation is proposed, which allows us to define and to measure the confidence of a recommendation.
Proceedings ArticleDOI

On social networks and collaborative recommendation

TL;DR: This work created a collaborative recommendation system that effectively adapts to the personal information needs of each user, and adopts the generic framework of Random Walk with Restarts in order to provide with a more natural and efficient way to represent social networks.
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