نتایج جستجو برای: geographic information systems gis

تعداد نتایج: 2172722  

2002
Shunfu Hu

This paper discussed the concepts and development of a multimedia geographic information system (GIS) for analyzing and visualizing both spatial and temporal geographic information in image/vector format as well as multimedia information in descriptive text, graphics, ground photographs and digital video clips. The multimedia GIS presents a new way to analyze and visualize geographic informatio...

2003
Harvey J. Miller Elizabeth A. Wentz

A common—perhaps modal—representation of geography in spatial analysis and geographic information systems is native (unexamined) objects interacting based on simple distance and connectivity relationships within an empty Euclidean space. This is only one possibility among a large set of geographic representations that can support quantitative analysis. Through the vehicle of GIS, many researche...

2006
Alenka Krek Manfred Bortenschlager

Geo-collaboration appears when individuals or groups of individuals work together to solve spatial decision-making problems facilitated by geospatial information technologies. In this paper we focus on current developments in geo-collaboration where we take an example of public participatory geoinformation systems (PP GIS). This research field focuses on the issues related to the participation ...

Journal: :International Journal of Geographical Information Science 1998
Agnès Voisard Heinz Schweppe

ion and Decomposition in Interoperable GIS Agn es Voisard Heinz Schweppe Institut f ur Informatik Freie Universitat Berlin Takustr. 9 D-14195 Berlin fvoisard,[email protected] Abstract With the advent of distributed computing and the increasing trend towards the reuse of geographic data, a new generation of geographic information systems (GIS) is currently being speci ed. The key cha...

2006
E. Lynn Usery

A conceptual model for structuring features in a geographic information system (GIS) is presented. The model includes spatial, thematic, and temporal dimensions and structures attributes and relationships for each dimension to build a feature-based GIs. The model is grounded in an entity-based view of geographic phenomena and requires representation of geographic entities as feature objects in ...

2002
Matt Duckham

The relationship between critical geography and geoinformatics has recently entered a new phase of cordiality and constructive discourse, exemplified by the NCGIA Initiative 19 [27], the Varenius project [21] and a variety of journal special issues on the topic of GIS and society (eg [28]). This new-found entente has opened the way to the re-evaluation of existing GIS-based research and to much...

2011
Min-Yuan Cheng Koshy Varghese James T. O'Connor

Geographic information systems (GIS), a technology for spatial data analysis which is widely used in geology, appears to have significant potential in construction applications. GIS as well as computer-aided design (CAD) are two computerized systems widely used in engineering design and spatial management. Currently, CAD is the most popular tool in geometric model creation. However, due to the ...

2009
Chung-Hung Tsai Han-Lin Chen

Fuzzy theory provides a rigorous, flexible approach to the problem of defining and computing. Therefore, to facilitate decision-making in geographic information system (GIS), the graph layer indicator and the Takagi Sugeno (TS) fuzzy model have to be integrated. This study explains several versions of the TS fuzzy model based on fuzzy theory and fuzzy operation. An inference model is constructe...

2010
Keith Bosak

This paper focuses on the use of geographic information system (GIS) in gender research and argues for the possibility that the tool has inherent biases with regard to data collection and representation. Introduction Given the mandate by large agencies to address gender in all development projects and the „Mainstreaming of Gender‟ at the World Bank, we can expect that new opportunities will eme...

Journal: :Soft Comput. 2005
Marco Painho Athanasios V. Vasilakos Fernando Bação Witold Pedrycz

The dramatic increase in geospatial data occasioned by developments in digital mapping, remote sensing, IT, and widespread generalization of Geographic Information Systems (GIS), emphasises the importance of exploring new approaches to spatial analysis and modelling. This favours the creation of new knowledge and eventually helps the process of scientific discovery. In this context the special ...

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