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Hybrid Acquisition of Temporal Scopes for RDF Data
Published on 2014-07-302412 Views
Information on the temporal interval of validity for facts described by RDF triples plays an important role in a large number of applications. Yet, most of the knowledge bases available on the Web of
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Presentation
Hybrid Acquisition of Temporal Scopes for RDF Data00:00
Outline00:17
Temporal Scoping of RDF triples00:50
Motivation & Challenges04:14
Approach Overview: Use the Web as Source of Evidence05:14
Approach Overview: Hybrid Acquisition of Time Scopes05:54
Temporal Information Extraction - Web Documents09:04
Temporal Information Extraction - Web of Data10:21
Mapping Facts to Time Intervals - Matching11:35
Mapping Facts to Time Intervals - Selection12:51
Mapping Facts to Time Intervals - Reasoning14:25
Experimental Setup - Dataset14:57
Experimental Setup - Evaluation Measures16:06
Experimental Results -Accuracy of Best Configurations for all Properties17:15
Experimental Results -Accuracy with vs. without Reasoning for all Properties19:26
Conclusions & Future Work19:56
Thank you!21:13