Learning Ontology Relations by Combining Corpus-Based Techniques and Reasoning on Data from Semantic Web Sources

• Main Author: Wohlgenannt, Gerhard (auth)
• Format: Electronic Book Chapter
• Language: English
• Published: Bern Peter Lang International Academic Publishers 2018
• Series: Forschungsergebnisse der Wirtschaftsuniversitaet Wien 44
• Subjects: Ethical & social aspects of IT; Enterprise software; Based; Combining; Corpus; Data; from; Learning; machine learning; natural language learning; Ontology; Reasoning; relation labeling; Relations; Semantic; Sources; Techniques; Wohlgenannt
• Online Access: OAPEN Library: download the publication; OAPEN Library: description of the publication

The manual construction of formal domain conceptualizations (ontologies) is labor-intensive. Ontology learning, by contrast, provides (semi-)automatic ontology generation from input data such as domain text. This thesis proposes a novel approach for learning labels of non-taxonomic ontology relations. It combines corpus-based techniques with reasoning on Semantic Web data. Corpus-based methods apply vector space similarity of verbs co-occurring with labeled and unlabeled relations to calculate relation label suggestions from a set of candidates. A meta ontology in combination with Semantic Web sources such as DBpedia and OpenCyc allows reasoning to improve the suggested labels. An extensive formal evaluation demonstrates the superior accuracy of the presented hybrid approach.