Journal ArticleDOI
Tiers of ontology and consistency constraints in geographical information systems
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In this paper the relation of the 5-tier ontology and consistency constraints is explored, and it is shown that different constraints are appropriate to different tiers.Abstract:
Consistency constraints placed on a database to assure, that values incorporated in the database are consistent, are a well known foundation of Geographical Information Systems. Unfortunately in real situations rules for consistency constraints are not so clear, and inconsistent ontologies are common place, not least in geographical information, covering as it does a much wider realm than many other information systems I have suggested elsewhere 5-tiers of ontology for GIS. Such an ontology can integrate different ontological approaches in a unified system. In this paper the relation of the 5-tier ontology and consistency constraints is explored, and it is shown that different constraints are appropriate to different tiers.read more
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A survey of context modelling and reasoning techniques
Claudio Bettini,Oliver Brdiczka,Karen Henricksen,Jadwiga Indulska,Daniela Nicklas,Anand Ranganathan,Daniele Riboni +6 more
TL;DR: The requirements that context modelling and reasoning techniques should meet are discussed, including the modelling of a variety ofcontext information types and their relationships, of situations as abstractions of context information facts, of histories of contextInformation, and of uncertainty of context Information.
Journal ArticleDOI
Context-Aware Computing, Learning, and Big Data in Internet of Things: A Survey
TL;DR: The field is reviewed from a historical perspective, covering ubiquitous and pervasive computing, ambient intelligence, and wireless sensor networks, and then, move to context-aware computing studies, which identify the open issues and provide an insight for future study areas for IoT researchers.
Journal ArticleDOI
Geospatial Big Data Handling Theory and Methods: A Review and Research Challenges
Songnian Li,Suzana Dragićević,Francesc Antón Castro,Monika Sester,Stephan Winter,Arzu Çöltekin,Christopher Pettit,Bin Jiang,James Haworth,Alfred Stein,Tao Cheng +10 more
TL;DR: The International Society for Photogrammetry and Remote Sensing (ISPRS) Technical Commission II (TC II) revisited the existing geospatial data handling methods and theories.
Journal ArticleDOI
Crowdsourcing, citizen science or volunteered geographic information? The current state of crowdsourced geographic information
Linda See,Peter Mooney,Giles M. Foody,Lucy Bastin,Alexis Comber,Jacinto Estima,Steffen Fritz,Norman Kerle,Bin Jiang,Mari Laakso,Hai-Ying Liu,Grega Milčinski,Matej Nikšič,Marco Painho,Andrea Pődör,Ana-Maria Olteanu-Raimond,Martin Rutzinger +16 more
TL;DR: A snapshot of the role of citizens in crowdsourcing geographic information is provided and a guide to the current status of this rapidly emerging and evolving subject is provided.
Journal ArticleDOI
Ontological Considerations in GIScience
TL;DR: This paper is aimed at exploring the theoretical and practical roles of ontologies, making the definitions and terminology explicit, assessing the applicability of ontology to problems in the geographical domain, and assessing whether a unified approach to ontology exists in GIScience.
References
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