Hagar Espanha Gomes

Ontologias de domínio: um estudo das relações conceituais

Lack of theoretical bases and sound methodologies are problems that arise when building Ontologies. The study proposes systematization of relations found in the literature from Information Science, Terminology, Computer Science and Bioinformatics. The systematization proposed aims at linking pairs of categories (categorical relations) with potential relations between them (formal relations). The study shows that different relations may arise in different domains and that systematic definitions are fundamental for the establishment of formal relations.

Estudo comparativo de softwares de construção de tesauros

Para auxiliar a construcao de vocabularios o uso e, consequentemente, a escolha de um software de construcao de tesauros e uma necessidade. Entretanto, esses softwares possuem diferentes caracteristicas de funcionalidades, custo e apoio metodologico, cuja analise criteriosa deve ser considerada, visando orientar a sua escolha de acordo com a finalidade e complexidade do tesauro a ser construido. Com base nessa necessidade de avaliacao, o objetivo do presente trabalho e apresentar um estudo comparativo desses softwares, levando em consideracao as utilizacoes dos tesauros nos dias de hoje.

Ontology: Several Theories on the Representation of Knowledge Domains

Ontologies may be considered knowledge organization systems since the elements interact in a consistent conceptual structure. Theories of the representation of knowledge domains produce models that include definition, representation units, and semantic relationships that are essential for structuring such domain models. A realist viewpoint is proposed to enhance domain ontologies, as definitions provide structure that reveals not only ontological commitment but also relationships between unit representations. Received: 23 October 2016; Revised: 22 February 2016; Accepted 9 March 2017