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ACM Transactions on Information Systems (TOIS), Volume 32 Issue 3, June 2014

Topic Modeling for Wikipedia Link Disambiguation
Bradley Skaggs, Lise Getoor
Article No.: 10
DOI: 10.1145/2633044

Many articles in the online encyclopedia Wikipedia have hyperlinks to ambiguous article titles; these ambiguous links should be replaced with links to unambiguous articles, a process known as disambiguation. We propose a novel statistical topic...

LCARS: A Spatial Item Recommender System
Hongzhi Yin, Bin Cui, Yizhou Sun, Zhiting Hu, Ling Chen
Article No.: 11
DOI: 10.1145/2629461

Newly emerging location-based and event-based social network services provide us with a new platform to understand users' preferences based on their activity history. A user can only visit a limited number of venues/events and most of them are...

Georeferencing Wikipedia Documents Using Data from Social Media Sources
Olivier Van Laere, Steven Schockaert, Vlad Tanasescu, Bart Dhoedt, Christopher B. Jones
Article No.: 12
DOI: 10.1145/2629685

Social media sources such as Flickr and Twitter continuously generate large amounts of textual information (tags on Flickr and short messages on Twitter). This textual information is increasingly linked to geographical coordinates, which makes it...

XXS: Efficient XPath Evaluation on Compressed XML Documents
Nieves R. Brisaboa, Ana Cerdeira-Pena, Gonzalo Navarro
Article No.: 13
DOI: 10.1145/2629554

The eXtensible Markup Language (XML) is acknowledged as the de facto standard for semistructured data representation and data exchange on the Web and many other scenarios. A well-known shortcoming of XML is its verbosity, which...

Content-Based Video Copy Detection Benchmarking at TRECVID
George Awad, Paul Over, Wessel Kraaij
Article No.: 14
DOI: 10.1145/2629531

This article presents an overview of the video copy detection benchmark which was run over a period of 4 years (2008--2011) as part of the TREC Video Retrieval (TRECVID) workshop series. The main contributions of the article include i) an...

Trust Prediction via Belief Propagation
Richong Zhang, Yongyi Mao
Article No.: 15
DOI: 10.1145/2629530

The prediction of trust relationships in social networks plays an important role in the analytics of the networks. Although various link prediction algorithms for general networks may be adapted for this purpose, the recent notion of “trust...