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Topological Relations from Metric Refinements

Published: Nov 1, 2009 Author(s): Dube, Matthew P., Egenhofer, Max J. Abstract: Naive Geography’s premise “Topology matters, metric refines” calls for metric properties that provide opportunities for finer grained distinctions than the purely qualitative topological relations. This paper defines a comprehensive set of eleven metric refinements that apply to the eight coarse topological relations between two regions that […]

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A Survey of Geosensor Networks: Advances in Dynamic Environmental Monitoring

Published: Jul 16, 2009 Author(s): Nittel, Silvia Abstract: In the recent decade, several technology trends have influenced the field of geosciences in significant ways. The first trend is the more readily available technology of ubiquitous wireless communication networks and progress in the development of low-power, short-range radio-based communication networks, the miniaturization of computing and storage platforms as […]

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Two funded PhD research assistantships announced

The Department of Spatial Information Science and Engineering and the National Center for Geographic Information and Analysis announce the availability of two funded PhD research assistantships.  Students will be working with advisor Professor Mike Worboys and will register for the degree of PhD.  The funding will cover a stipend, tuition, and a contribution to the […]

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Establishing Similarity Across Multi-Granular Topological-Relation Ontologies

Published: Jun 1, 2009 Author(s): Dube, Matthew P., Egenhofer, Max J. Abstract: Within the Geospatial Semantic Web, selecting a different ontology for a spatial data set will enable that dataís analysis in a different context. Analyses of multiple data sets, each based on a different ontology, require appropriate bridges across the ontologies. This paper focuses on establishing such […]

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Ph.D. thesis defense by Guang Jin

On April 8, 2009, Guang Jin successfully defended his Ph.D. thesis with the topic “Towards spatial queries over continuous phenomenon using sensor networks.”  His work included several approaches to compute field-based and object-based queries for detecting, estimating, and tracking continuous phenomena such as toxic chemical clouds and their boundaries using novel wireless sensor network technology.  […]

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Onsrud receives Fulbright Specialists Award

Harlan Onsrud has been selected for a Fulbright Specialists project in Law in Australia at The University of Melbourne during February and March 2009, according to the United States Department of State and the J. William Fulbright Foreign Scholarship Board.  Onsrud will develop and present five major lectures, known collectively as the 2009 Melbourne Fulbright […]

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Department welcomes new faculty Reinhard Moratz and Nicholas Giudice

Dr. Reinhard Moratz and Dr. Nicholas Giudice, new faculty members in the Department of Spatial Information Science and Engineering, were welcomed by faculty, staff, and students at a recent social gathering hosted by Chair Michael Worboys.  Associate Professor Moratz comes to the University of Maine from Hamburg, Germany, where he was a Senior Researcher at […]

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SIE alumnus Xavier Lopez inducted into Francis Crowe Society

SIE alumnus Xavier Lopez was inducted into the Francis Crowe Society as a Distinguished Engineer at the annual Francis Crowe Society ceremony held Saturday, May 10, 2008, at Hauck Auditorium on the UMaine campus. The purpose of the Francis Crowe Society is to recognize UMaine engineering graduates as they accomplish the formidable goal of completing […]

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