Geographic information fusion is the process of integrating geographic information from diverse sources to produce new information with added value, reliability, or usefulness (cf. [14,67]). Geographic information fusion is an important function of interoperable and web-based GIS. Increased reliance on distributed web-based access to geographic information is correspondingly increasing the need...

Currently in many major cities, public transit schedules are disseminated through lists of routes, grids of stop times and static maps. This paper describes a web based geographic information system which disseminates the same schedule information through intuitive GIS techniques. Using data from Calgary, Canada, an map based interface has been created to allow users to see routes, stops and mo...

Based on the relevant studies and successful applications of Geographic information ontology and Web services ontology in the last decade, this paper discusses the utility and research trend of the Geographic information services Ontology in the prospective of Geographic information ontology and the Semantization of the Geographic information services. It proposes the concept of Geographic info...

A number of integrity constraints must be observed when updating a database, in order to preserve the semantics and the quality of stored data (Elmasri & Navathe, 2000). Achieving and preserving the integrity of data is an established field in the database area. However, within the scope of geographic applications, special problems come up due to the locational aspects of data (Plumber & Groger...

Many madrasah under the auspices of Tangerang Disctrict Education Office are scattered and public does not know where are. So that mapping is needed to find out distribution these madrasah. The development residential areas increasing number residents raises several problems, including inadequate school capacity, lack access points schools, incomplete supporting facilities so on. Conditions lik...