Quotation Wohlgenannt, Gerhard, Weichselbraun, Albert, Scharl, Arno. 2009. Integrating Structural Data into Methods for Labeling Relations in Domain Ontologies. In Twentieth International Conference on Database and Expert Systems Application (DEXA 2009); Eighth International Workshop on Web Semantics (WebS'09), Hrsg. A. M. Troja and R. R. Wagner, 94-98. Linz, Austria: IEEE Computer Society Press.


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Abstract

This paper presents a method for integrating DBpedia data into an ontology learning system that automatically suggests labels for relations in domain ontologies based on large corpora of unstructured text. The method extracts and aggregates verb vectors for semantic relations identified in the corpus. It composes a knowledge base which consists of (i) centroids for known relations between domain concepts, (ii) mappings between concept pairs and the types of known relations, and (iii) ontological knowledge retrieved from DBpedia. Refining similarities between the verb centroids of labeled and unlabeled relations by means of including domain and range constraints applying DBpedia data yields relation type suggestions. A formal evaluation compares the accuracy and average ranking performance of this hybrid method with the performance of methods that solely rely on corpus data and those that are only based on reasoning and external data sources.

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Publication's profile

Status of publication Published
Affiliation WU
Type of publication Contribution to conference proceedings
Language English
Title Integrating Structural Data into Methods for Labeling Relations in Domain Ontologies
Title of whole publication Twentieth International Conference on Database and Expert Systems Application (DEXA 2009); Eighth International Workshop on Web Semantics (WebS'09)
Editor A. M. Troja and R. R. Wagner
Page from 94
Page to 98
Location Linz, Austria
Publisher IEEE Computer Society Press
Year 2009
ISBN 978-0-7695-3763-4

Associations

People
Wohlgenannt, Gerhard (Former researcher)
Weichselbraun, Albert (Former researcher)
Scharl, Arno (Former researcher)
Organization
Institute for Data, Process and Knowledge Management (AE Polleres) (Details)
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