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Social and Behavioral Sciences Commons

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Electronic Theses and Dissertations

The University of Maine

2007

Computer network resources

Articles 1 - 2 of 2

Full-Text Articles in Social and Behavioral Sciences

Combining Geospatial And Temporal Ontologies, Kripa Joshi Dec 2007

Combining Geospatial And Temporal Ontologies, Kripa Joshi

Electronic Theses and Dissertations

Publicly available ontologies are growing in number at present. These ontologies describe entities in a domain and the relations among these entities. This thesis describes a method to automatically combine a pair of orthogonal ontologies using cross products. A geospatial ontology and a temporal ontology are combined in this work. Computing the cross product of the geospatial and the temporal ontologies gives a complete set of pairwise combination of terms from the two ontologies. This method offers researchers the benefit of using ontologies that are already existing and available rather than building new ontologies for areas outside their scope of …


Semantic Interoperability Of Geospatial Ontologies: A Model-Theoretic Analysis, James A. Farrugia May 2007

Semantic Interoperability Of Geospatial Ontologies: A Model-Theoretic Analysis, James A. Farrugia

Electronic Theses and Dissertations

People sometimes misunderstand each other, even when they use the same language to communicate. Often these misunderstandings happen when people use the same words to mean different things, in effect disagreeing about meanings. This thesis investigates such disagreements about meaning, considering them to be issues of semantic interoperability. This thesis explores semantic interoperability via a particular formal framework used to specify people’s conceptualizations of a given domain. This framework is called an ‘ontology,’ which is a collection of data and axioms written in a logical language equipped with a modeltheoretic semantics. The domain under consideration is the geospatial domain. Specifically, …