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Dealing with Dubious Facts in Knowledge Graphs

Dealing with Dubious Facts in Knowledge Graphs

Tim Finin, 10:47am 22 November 2016

In this week’s meeting, Ankur Padia will about about his work on the problem of identifying and managing ‘dubious facts’ extracted from text and added to a knowledge graph.

Dealing with Dubious Facts in Knowledge Graphs

Ankur Padia

Knowledge graphs are used to represent real-world facts and events with entities as nodes and relations as labeled edges. Generally, a knowledge graph is automatically constructed by extracting facts from text corpus using information extraction (IE) techniques. Such IE techniques are scalable but often extract low quality (or dubious) facts due to errors caused by NLP libraries, internal components of an extraction system, choice of learning techniques, heuristics and syntactic complexity of underlying text. We wish to explore techniques to process such dubious facts and improve the quality of a knowledge graph.


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