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DGO
2003
123views Education» more  DGO 2003»
10 years 5 months ago
Technical Problems of Deploying Standard Initiative of National City True Orthophoto Mapping
This paper presents our preliminary experimental results on the encountered many problems when producing urban true orthoimages of downtown, where a number of high buildings prese...
Guoqing Zhou, Zhihao Qin, Susan Benjamin, J. Rand,...
DGO
2003
153views Education» more  DGO 2003»
10 years 5 months ago
Improving Access to Large Volumes of Online Data
The Internet has recently become the medium of interaction with large volumes of data. Enterprises in the public and private sectors made their databases available over the Intern...
Egemen Tanin, Hanan Samet
DGO
2003
128views Education» more  DGO 2003»
10 years 5 months ago
A Study on Automatic Ontology Mapping of Categorical Information
Semantic heterogeneity of information is a major barrier of information and system interoperability. Defining ontology of data and mapping ontologies among heterogeneous informati...
Naijun Zhou
DGO
2003
94views Education» more  DGO 2003»
10 years 5 months ago
DGPort: A Web Portal for Digital Government
This paper provides a summary of the initial development of a Web portal for the digital government domain. Information retrieval techniques commonly used to find information on t...
Chun Q. Yin, L. Dwayne Nickels, Charles Zhi-kai Ch...
DGO
2003
111views Education» more  DGO 2003»
10 years 5 months ago
Digital Citizenship: Parameters of the Digital Divide
As part of a National Science Foundation-funded study, we analyze data from a 2002 Midwest urban random sample survey (n = 167 adults) of differential access to and uses of comput...
Stuart W. Shulman, Mack C. Shelley, Lisa Thrane
DGO
2003
113views Education» more  DGO 2003»
10 years 5 months ago
Resolving Schema and Value Heterogeneities for XML Web Querying
To query XML data over the Web, query engines need to be able to resolve semantic differences between heterogeneous attributes that are conceptually similar. This demo presents a ...
Nancy Wiegand, Naijun Zhou, Stephen J. Ventura, Is...
DGO
2003
129views Education» more  DGO 2003»
10 years 5 months ago
Extending XML Web Querying to Heterogeneous Geospatial Information
This paper describes a Web-based query system for semantically heterogeneous geospatial data. Our goal is to provide DBMS type query capabilities to a proposed statewide land info...
Nancy Wiegand, Naijun Zhou, Stephen J. Ventura, Is...
DGO
2003
79views Education» more  DGO 2003»
10 years 5 months ago
Finding Outliers in Models of Spatial Data
Statistical models fit to data often require extensive and challenging re-estimation before achieving final form. For example, outliers can adversely affect fits. In other cas...
David W. Scott, J. Blair Christian
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