Point-of-Interest Recommendation in Location-Based Social Networks by Shenglin Zhao & Michael R. Lyu & Irwin King

Point-of-Interest Recommendation in Location-Based Social Networks by Shenglin Zhao & Michael R. Lyu & Irwin King

Author:Shenglin Zhao & Michael R. Lyu & Irwin King
Language: eng
Format: epub
ISBN: 9789811313493
Publisher: Springer Singapore


3.5.1 Data Description and Experimental Setting

Two real-world datasets are used in the experiment: one is Foursquare data from January 1, 2011 to July 31, 2011 provided in [6] and the other is Gowalla data from January 1, 2011 to September 31, 2011 in [35]. We filter the POIs checked-in by less than 5 users and then choose users who check-in more than 10 times as our samples. After the preprocessing, the datasets contain the statistical properties as shown in Table 3.1. We randomly choose 80% of each user’s check-ins as training data, and the remaining 20% for test data. Moreover, we use each check-in (u, t, l) in training data to learn the latent features of user, time, and POI. Then given the (u, t), we estimate the score value of different candidate POIs, select the top N candidates, and compare them with check-in tuples in test data.Table 3.1Statistics of datasets



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