Obtención de axiomas usando entidades nombradas para el aprendizaje de ontologías (The acquisition of axioms for ontology learning using named entities)

Ana Bertha Rios Alvarado (arios@docentes.uat.edu.mx)1, Ivan Lopez Arevalo (ilopez@tamps.cinvestav.mx)2, Edgar Tello Leal (etello@uat.edu.mx)1


1Universidad Autónoma de Tamaulipas
2CINVESTAV Laboratorio de Tecnologías de la Información

This paper appears in: Revista IEEE América Latina

Publication Date: May 2016
Volume: 14,   Issue: 5 
ISSN: 1548-0992


Abstract:
Domain ontologies facilitate the organization, sharing, and reuse of domain knowledge. The construction of ontologies from text deals with the extraction of concepts and relations from text collection. A huge challenge is the learning of more expressive ontologies which includes relations such as disjointness or equivalence between classes. In our work, we exploit a text collection written in English with occurrence of named entities giving information about individuals in an specific domain knowledge for generating axioms. The co-ocurrence in texts of named entities is exploited to establish axiomatic relations between classes such as subClassOf, disjointWith, and equivalentClass; as well as between individuals as sameIndividualAs and differentFrom by using the instanceOf relation. For this purpose, a Named Entity Recognition tool was used for the identification of instanceOf relation, the linguistic context where the classes co-occur was extracted for the identification of axioms. The experiments were made on a text collection about the tourist domain. The results show that named entities provide good evidence for the identification of axiomatic relations.

Index Terms:
ontology learning, axioms, named entities   


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