The need for global access and decentralized management of geographic information is pushing the GIS community to establish an open GIS architecture and provide distributed geographic information services. From an operational perspective, the role of client/server components underlie specification of task-oriented programming, and the modularization of GIS software. Exchange of geographic infor...

Maintaining competitive advantage is significant in this present day of globalization, knowledge management and enormous economic activities. An organization's future developments are influenced by its managements' decisions. Businesses today are facing a lot of challenges in terms of competition and they have to be in the lead by strengthening their research and development strategies with the...

This paper describes a program developed to allow semi-automatic detection and enhancement of linear features in aerial photography. The program employs three different edge detectors namely Sobel, Deriche and Canny as well as morphological operations. The effectiveness of each of these operators and mathematical morphology is compared. Classification accuracy evaluation demonstrated that the C...

This paper develops an approach for the representation of natural world phenomena within a relational structure. Relational algebra (RA) as the basis for database has been enormously influential and successful in the utilisation of computers in the world of business applications. This success has led to attempts to utilise relational algebra for application of computers to problems of the natur...

A project is underway to map die indoor radon potential for New York State at the township level. Through a detector distribution program the New York State Department of Health has a database of over 36,000 basement screening measurements. The address field for the indoor measurement data is being linked to latitude and longitude coordinates using data files containing coordinate information. ...