نتایج جستجو برای: geospatial

تعداد نتایج: 9213  

Journal: :IJAEIS 2010
Tarek Sboui Mehrdad Salehi Yvan Bédard

Geospatial datacubes are the database backend of novel types of spatiotemporal decision-support systems employed in large organizations. These datacubes extend the datacube concept underlying the field of Business Intelligence (BI) into the realm of geospatial decision-support and geographic knowledge discovery. The interoperability between geospatial datacubes facilitates the reuse of their co...

2012
Kristin Stock Robert C Pasley Zoe Gardner Paul Brindley Jeremy Morley Claudia Cialone

The description of location using natural language is of interest for a number of research activities in geography, linguistics and cognitive science, including the development of methods for automated interpretation and generation of natural language to ease interaction with geographic information systems, as well as a number of related endeavours. For such research activities, examples of geo...

Journal: :Trans. GIS 2003
Jean Brodeur Yvan Bédard Geoffrey Edwards Bernard Moulin

Geospatial data interoperability has been the target of major efforts by standardization bodies (e.g. OGC, ISO/TC 211) and the research community since the beginning of the 1990s. It is seen as a solution for sharing and integrating geospatial data, more specifically to solve the syntactic, schematic, and semantic as well as the spatial and temporal heterogeneities between various representatio...

2010
L. Díaz C. Granell J. Huerta

Geospatial technologies have evolved to offer users the functionality of data access and to model development to generate information. Nowadays Spatial Data Infrastructures represent the SOA paradigm in geospatial terms offering a set of interoperable distributed components to access, visualize and process data forming the Geospatial Web. Fostered by the European directive INSPIRE many public a...

Journal: :J. Web Sem. 2015
Yolanda Gil Raphaël Troncy

Geospatial reasoning has grown larger scope in the semantic web. Increasinglymore information is geolocated,moremobile devices produce geocoded records, and more web mashups are created to convey geospatial information. Semantics can support the integration of geospatial information, track the provenance and quality of the data shown to an end user, and improve visualizations and querying of ge...

Journal: :CoRR 2012
Yingjie Hu

Geospatial semantics is a broad field that involves a variety of research areas. The term semantics refers to the meaning of things, and is in contrast with the term syntactics. Accordingly, studies on geospatial semantics usually focus on understanding the meaning of geographic entities as well as their counterparts in the cognitive and digital world, such as cognitive geographic concepts and ...

2011
Chunchen Liu Dayou Liu Shengsheng Wang

Geospatial ontology plays a key role in Geospatial Semantic Retrieval (GSR), which provides support for query expansion and disambiguation, relevance ranking and web page annotation. However, existing ontologies are deficient in representing and reasoning fuzzy geospatial information, an important type of information that distributes widely in user’s queries and web pages. This paper proposes a...

Journal: :Computers & Geosciences 2007
Peng Yue Liping Di Wenli Yang Genong Yu Peisheng Zhao

Recent developments in Web service technologies and the semantic Web have shown promise for automatic discovery, access, and use of Web services to quickly and efficiently solve particular application problems. One such application area is in the geospatial discipline, where Web services can significantly reduce the data volume and required computing resources at the end-user side. A key challe...

2008
Chaowei Phil Yang John Evans

DEFINITION Network GIS Performance (NGP) refers to the level of Quality of Services (QoS) of a Network GIS. NGP includes both the efficient use of Network GIS resources (CPU, memory, massive storage, geospatial data and geospatial services) and the perception of speed of a Network GIS [1]. Network GIS is a GIS where the geospatial data and geospatial processing are distributed across a computer...

Journal: :Int. J. Applied Earth Observation and Geoinformation 2010
Chuanrong Zhang Tian Zhao Weidong Li

Although the fast development of OGC (Open Geospatial Consortium) WFS (Web Feature Service) technologies has undoubtedly improved the sharing and synchronization of feature-level geospatial information across diverse resources, literature shows that there are still apparent limitations in the current implementation of OGC WFSs. Currently, the implementation of OGC WFSs only emphasizes syntactic...

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