This article provides an overview of Geographic Information Systems (GIS) and the issues surrounding their use in mortgage finance and related industries. After a brief introduction to GIS and geographic data, the application of GIS technology to mortgage finance is explored. The article also examines organizational challenges in developing in-house GIS capability. GIS’s greatest potential cont...

The diversity of spatial information systems promotes the need to integrate heterogeneous spatial or geographic information systems (GIS) in a cooperative environment. This paper describes the research project ISIS (Interoperable Spatial Information System) which is a semantic mediation approach to support GIS interoperability. Its key characteristic is a dynamic resolution of semantic conflict...

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...

In this article, we describe two software design patterns that can be reused in the design of object-oriented geographical information systems (GIS). The first of them, called Spatial Object, captures the common structure and dynamics of the spatial entities represented in a GIS. The second one, called Spatial Graph, provides a solution to REVISTA COLOMBIANA DE COMPUTACIÓN Volumen 1, número 1 P...

................................................................................................... 1 CHAPTER 1 – INTRODUCTION .................................................................... 3 CHAPTER 2 – AN INTRODUCTION TO GEO-INFORMATION SYSTEMS ... 7 2.1 What is a Geo-Information System? ......................................................... 7 2.2 Data found in a GIS ...................

This article provides a spatial analytical framework for using Geographic Information Systems (GIS) technology in housing and mortgage market research. It discusses the nature of neighborhood effects and their influence in residential market behavior and outcomes. It then discusses how GIS can aid with empirical research investigations. GIS, coupled with spatial analytical tools, offers an idea...

Support of high performance queries on large volumes of spatial data becomes increasingly important in many application domains, including geospatial problems in numerous fields, location based services, and emerging scientific applications that are increasingly data- and compute-intensive. The emergence of massive scale spatial data is due to the proliferation of cost effective and ubiquitous ...

Significant research effort has been focusing on using GIS for advanced spatial statistics, modeling, and simulation. This paper argues that even though GIS have great potential to facilitate sophisticated spatial modeling and spatial statistics, the simple but important theme of combining spatial information with statistical analysis has not received enough attention and should not be neglecte...

The purpose of this paper is to develop the GIS educational environment in training program using open-source GIS software. First, we have verified the substitutability of laboratory exercise materials at our university from commercial GIS to open-source GIS software. Next, we grasp the improvement situation of the free spatial data that are opened to the public by the government and present th...