A Unified Model for Spatial and Temporal Information

Towards a Unified Spatial-Temporal Data Model and Query Language for Geographical Information Systems

This paper outlines the principle features of a Ph.D. programme of work. Section one describes the aims of the research. Section two looks at the nature of digital maps and their importance in the broader context of geographic information. Section three looks at the two major aspects of the research. Section four discusses the role of category theory in the research. Finally the conclusion is p...

Reviewing Spatial and Temporal Transmission of Information through Multimode Optical Fibers in a Unified Model

The potential and the capacity of large core fibers possibility to use it as a transmission media is discussed.The transmission of spatial and temporal data down a multimode optical fiber is abstracted. The attempts to establish a multi channel link over multimode fibers is reviewed and different practical methods are compared and a multimode fiber link is presented in a model which can be appl...

A Unified Spatial Model for Gis

GIS (Geographic Information Systems) are concerned with the manipulation and analysis of spatial data at a “Geographic” scale. Apart from issues of storage, database query and visualization, they must deal with several significantly different types of spatial information. These may be roughly classified as: discrete objects; networks; polygonal maps; and surfaces. Each of these has a specific s...

Planning for Protected Areas Using Spatial and Temporal Metrics

Toward a Unified Model for Information Quality

We present a model which allows to define in an uniform way information quality dimensions related to heterogeneous types of information, such as structured data managed in data bases, semi-structured and unstructured texts and images. We first define a set of concepts that allow to represent several basic characteristics of such heterogeneous types of information. Then, we introduce a general ...