Title
Context Aware Matrix Factorization for Event Recommendation in Event-Based Social Networks
Abstract
Event-based Social Networks(EBSNs) which combine online interactions and offline events among users have experienced increased popularity and rapid growth recently. In EBSNs, event recommendation is significant for users due to the extremely large amount of events. However, the event recommendation problem is rather challenging because it faces a serious cold-start problem: Events have short life time and new events are registered by only a few users. What's more, there are only implicit feedback information. Existing approaches like collaborative filtering methods are not suitable for this scenario. In this paper, we propose a Context Aware Matrix Factorization model called AlphaMF to tackle with the problem. Specifically, AlphaMF is a unified model that combines the Matrix Factorization model which models implicit feedbacks with the Linear contextual features model which models explicit contextual features. Extensive experiments on a large real-world EBSN dataset demonstrate that the AlphaMF model significantly outperforms state-of-the-art methods by 11%.
Year
DOI
Venue
2016
10.1109/WI.2016.0043
2016 IEEE/WIC/ACM International Conference on Web Intelligence (WI)
Keywords
Field
DocType
event recommendation,context aware,matrix factorization,Recommender Systems,Event-based Social Networks
Data mining,Social network,Computer science,Popularity,Context model,Artificial intelligence,Unified Model,Life time,Recommender system,Collaborative filtering,Information retrieval,Matrix decomposition,Machine learning
Conference
ISBN
Citations 
PageRank 
978-1-5090-4471-9
0
0.34
References 
Authors
18
5
Name
Order
Citations
PageRank
Yulong Gu183.85
Jiaxing Song2509.62
Weidong Liu39317.66
Lixin Zou4394.81
Yuan Yao582.51