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Computing FOAF Co-reference Relations with Rules and Machine Learning

Authors: Jennifer Sleeman, and Tim Finin

Book Title: Proceedings of the Third International Workshop on Social Data on the Web

Date: November 01, 2010

Abstract: The friend of a friend (FOAF) vocabulary is widely used on the Web to describe ’agents’ (people, groups and organizations) and their properties. Since FOAF does not require unique ID for agents, it is not clear when two FOAF instances should be linked as co-referent, i.e., denote the entity in the world. One approach is to use logical constraints such as the presence of inverse functional properties as evidence that two individuals are the same. Another applies heuristics based on the string similarity of values of FOAF properties such as name and school as evidence for or against co-reference. Performance is limited, however, by many factors: non-semantic string matching, noise, changes in the world, and the lack of more sophisticated graph analytics. We describe a proto-type system that takes a set of FOAF agents and identifies subsets that are believed to be co-referent. The system uses both logical constraints (e.g., IFPs), strong heuristics (e.g., FOAF agents described in the same file are not co-referent), and an SVM generated classifier. We present initial results using data collected from Swoogle and other sources and describe plans for additional analysis.

Type: InProceedings

Tags: foaf, social media, learning, semantic web

Google Scholar: AtnQFw0j3PEJ

Number of Google Scholar citations: 6 [show citations]

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