Paper Info
Title
The Web as a Data Source for Spatial Databases
Abstract
With the phenomenal growth of the WWW, rich data sources on many different subjects have become available online. Some of these sources store daily facts that often involve textual geographic descriptions. These descriptions can be perceived as indirectly georeferenced data - e.g., addresses, telephone numbers, zip codes and place names. Under this perspective, the Web becomes a large geospatial database, often providing up-to-date local or regional information. In this work we focus on using the Web as an important source of urban geographic information and propose to enhance urban Geographic Information Systems (GIS) using indirectly georeferenced data extracted from the Web. We describe an environment that allows the extraction of geospatial data from Web pages, converts them to XML format, and uploads the converted data into spatial databases for later use in urban GIS. The effectiveness of our approach is demonstrated by a real urban GIS application that uses street addresses as the basis for integrating data from different Web sources, combining these data with high-resolution imagery.
Year
Venue
Keywords
2003
GeoInfo
spatial database,web pages,geographic information system,geospatial data
Field
DocType
Citations 
Geospatial analysis,Data source,Data mining,Geographic information system,Geoportal,World Wide Web,Geospatial metadata,Information retrieval,Computer science,Database,Spatial database
Conference
11
PageRank 
References 
Authors
0.88
9
5
Name
Order
Citations
PageRank
Karla A. V. Borges119813.48
Laender Alberto H. F.21920200.88
Claudia Bauzer Medeiros3680138.63
Altigran Soares da Silva471865.15
Clodoveu A. Davis522720.16