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Many sensor networks have been deployed to monitor Earth's environment, and more will follow in the future. Environmental sensors have improved continuously by becoming smaller, cheaper, and more intelligent. Due to the large number of sensor manufacturers and differing accompanying protocols, integrating diverse sensors into observation systems is not(More)
The last two decades have shown a major shift from stand-alone software systems to networked ones. As with all information system domains, Geographic Information Systems (GISs) have been influenced to a large extent by recent internet developments, resulting in an increasing availability of client/server applications using distributed geo-(web-)services,(More)
Integrating multiple geographic services from different information communities and spatiolinguistic regions is challenging because of its inherent complexity and heterogeneity. A geographic information systems workflow approach can use semantic and syntactic service descriptions to form service chains that can integrate service discovery, composition, and(More)
More and more users are contributing and sharing more and more contents on the Web via the use of content hosting sites and social media services. These user-generated contents are tagged with terms characterizing the contents from the users' perspectives. Massive collections of tagged photos in popular photo hosting sites are well known for their richness(More)
A growing number of Web services, including Location Based Services (LBS) is becoming available to the public, but it is difficult to find them and to judge whether they could be used in combination with other services. This is partly caused by the fact that conventional service descriptions fall short in capturing the semantics of services. In this paper(More)
The fast development of internet technology has motivated the improvement of geographic information sharing and now, the advent of web services enable GIS functionality to be shared and consumed in a distributed computing environment. Web services are loosely-coupled functions that can be executed remotely by users on the internet regardless the platforms(More)
The growing demand for the discovery of geo Web services as parts of service chains necessitates semantic matchmaking between service descriptions. We propose a method for describing and matching services based on a geo location ontology and we demonstrate its power and its limitations with a simple user scenario. In a test environment using protege and the(More)
Homozygosity for Cst6 null alleles causes the phenotype of the ichq mouse, which is a model for human harlequin ichthyosis (OMIM 242500), a genetically heterogeneous group of keratinization disorders. Here we report evidence for the mechanism by which deficiency of the cysteine protease inhibitor cystatin M/E (the Cst6 gene product) leads to disturbed(More)
We demonstrate the integrated use of semantic and syntactic service descriptions, called deep service descriptions, for service chaining by combining two prototypes: one that deals with geoservice discovery abstract composition (called ‘GeoMatchMaker’), with one that supports concrete composition and execution of geoservices services (called ‘Integrated(More)
All rights reserved. No part of this publication may be reproduced in any form, by print, photoprint, microfilm or any other means, without written permission of the author. To my wife Rachel, my son Christian and my mother Alika vii Acknowledgements This thesis was made possible by the help and support of a number of people. I would like to start by(More)