One of the many reasons why GIS programmes in Africa and elsewhere in the developing world never get started is that top management are not fully persuaded to support such innovations. A favourable financial analysis of GIS investment will greatly enhance its chances of approval and continued funding if the computation is tied to the goals set by organisations. We argue that an approach provide...

Three-dimensional (3D) GIS is gaining more and more acceptance among both scientists and the general public. Though powerful in data visualization, 3D GIS is comparatively weak in geospatial analysis. In order to enhance 3D GIS’s analysis capability, we present an approach for integrating geospatial processing services into 3D GIS. The architecture of our approach contains four layers which are...

The integration among DW, OLAP and GIS has been given considerable attention in recent years by many researchers and industrial corporations. This may be a result of: 1) DW/OLAP can improve GIS spatial queries whereas, 2) a GIS can provide better support to deal with the DW/OLAP geographic data. Some research about this integration has already been done. However, these approaches do not deal wi...

s a tool for analysis and decision making, GIS and remote sensing opened a new horizon for monitor and control of diseases. Information on landuse, water bodies, vegetation, forest cover and others can be used as data sets in GIS for mapping of disease receptivity and identification of risk factors. GIS offers new and expanding opportunities to look into disease epidemiology. Even when used min...

While the use of three-dimensional (3D) geographical information system (GIS) is becoming in rapid development and being used in various fields such as urban and regional planning, disaster management and planning, mobile navigation and etc., commercial and open source GIS software packages tend to offer 3D-GIS functionalities for their products. On the basis, GIS analysis functions are to prov...

GIS assist in specific planning and decision-making processes in irrigation through the input, spatial analysis and output of relevant information. The real strength of GIS is its ability to integrate information. This integration power makes the scope of GIS almost infinite. The unique integration capability of GIS allows disparate data sets to be brought together to create a complete picture ...

GIS designs have evolved over the past 30 years, and once adopted a design tends to persist as a legacy despite progress in fundamental research. A feature of most GIS designs is the representation of position by derived coordinates, rather than by original measurements. In such coordinate-based GIS it is impossible to apply traditional error analysis, or to estimate uncertainties in derived pr...

OBJECTIVES To evaluate the diagnostic efficiency of two-dimensional (2D) and three-dimensional (3D) transvaginal ultrasonography, power Doppler angiography (PDA) and gel infusion sonography (GIS) at offline analysis for recognition of malignant endometrium compared with real-time evaluation during scanning, and to determine optimal image parameters at 3D analysis. METHODS One hundred and sixt...

BACKGROUND Geographic Information Systems (GIS) describe the topography and chronology of events in a defined vector space. GIS may also be used for an integrated analysis of environmental and road-related risk factors for traffic accidents. METHODS In a retrospective study, various features of 165 road crashes were linked to a GIS-generated digital map of an area close to a national highway ...

multiple sclerosis (ms) is a disease with high disabling disorders and considerable social and economic impacts. this study was conducted to analyze the spatial distribution of ms disease in tehran, iran during 2001-2012.the existing information in the ms patients' medical files who had registered in iranian ms society (imss), located in tehran office, was used for analysis. the relationship be...