Time Automaton: A visual mechanism for temporal querying

• Tipo: Artigo em Revista Científica Internacional
• Data: 2013

Autores

Certo, L (Autor) Outra; Teresa Galvão Dias (Autor) FEUP; José Luís Moura Borges (Autor) FEUP

Revista

Título: Journal of Visual Languages and Computing

Vol. 24 Nº 1

Páginas: 24-36

ISSN: 1045-926X

Editora: ACADEMIC PRESS INC

Indexação

ISI Web of Knowledge - 5 Citações

Scopus - 6 Citações

Outras Informações

ID Authenticus: P-002-0Q3

DOI: 10.1016/j.jvlc.2012.10.001

Abstract (EN): Available visual temporal querying tools do not provide the means for formulating complex temporal queries. For these queries users have to adopt text-based querying languages, such as SQL. The problem, however, is that using text-based languages is less comfortable than using visual tools and, most important, in some cases temporal queries can be extremely difficult to formulate for users that do not possess programming competences. In this paper we propose the Time Automaton, a highly flexible visual mechanism that enables the formulation of a large set of different types of temporal queries, ranging from the simple to the most complex ones. To prove its practical application we created a tool that implements the mechanism and used it to analyze a real dataset. Time Automaton was validated against a representative sample of temporal queries extracted from the matured OWL-Time Ontology. In order to understand if users, with or without programming competences, could understand and use the Time Automaton we conducted a usability experiment.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 13