Traditional polygon-arc-node topological relationships (TRs) is standard in vector GIS. That has been explicitly represented by many commercial GIS systems. In the case of Intelligent Transportation System (ITS), a full topology is defined by an international standard with which road network data are topologically structured. One important part of ITS application is place searching and path fin...

In this paper we present a novel Point-based pattern analysis for predicting Cassiterite (tin-ore) as a secondary mineral deposit in the Plateau Younger Granite Region of Nigeria (PYGR) using statistics, spatial analysis and machine learning techniques. Existing mining data points collected from field survey in the PYGR and the geological map of the region were digitized and converted into shap...

This paper presents a prototype of a simulation model based on cellular automata (CA), and multicriteria evaluation (MCE) and integrated with GIS. Speci® cally, a method, analytical hierarchy process (AHP), of MCE is used here to derive behaviour-oriented rules of transition in CA. A t̀ight’ integration strategy is adopted, which means that the modules of MCE and CA are written in the C programm...

Esophageal cancer is a mjaor health problems in many parts of the world. A geographical information system (GIS) allows investigation of the geographical distribution of diseases. The purpose of the present study was to explore the relationship between esophageal cancer and effective climatic factors using GIS. The dispersion distribution and the relationship between environmental factors effec...

Mineral exploration companies increasingly are using GIS technology to combine spatial data and make predictive mineral potential maps. Weights-of-evidence is a discrete multivariate method first applied to this problem by us about 12 years ago (Bonham-Carter et al., 1988). It is easily implemented within a GIS computing environment. Arc-WofE is a new user-friendly computer code for weights-of-...

Integrating FEMAs Enhanced DFIRMDB Model With ESRI's Arc Hydro Data Model Track: Water Resources Author(s): Mark Aurit, Chas Crandel, Howard Davis Advancements in technology, such as the release of ArcGIS 8, the geodatabase model, and the introduction of the Arc Hydro data model will allow for the integration of GIS technology and floodplain management. The Arc Hydro data model was designed to ...