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» Design and Implementation of Multi-scale Databases
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GIS
2003
ACM
14 years 10 months ago
Nearest neighbor queries in road networks
With wireless communications and geo-positioning being widely available, it becomes possible to offer new e-services that provide mobile users with information about other mobile ...
Christian S. Jensen, Jan Kolárvr, Torben Ba...
GISCIENCE
2004
Springer
121views GIS» more  GISCIENCE 2004»
14 years 2 months ago
Semi-automatic Ontology Alignment for Geospatial Data Integration
In geospatial applications with heterogeneous databases, an ontology-driven approach to data integration relies on the alignment of the concepts of a global ontology that describe ...
Isabel F. Cruz, William Sunna, Anjli Chaudhry
CCGRID
2010
IEEE
13 years 18 days ago
WORKEM: Representing and Emulating Distributed Scientific Workflow Execution State
- Scientific workflows have become an integral part of cyberinfrastructure as their computational complexity and data sizes have grown. However, the complexity of the distributed i...
Lavanya Ramakrishnan, Dennis Gannon, Beth Plale
ERCIMDL
1999
Springer
111views Education» more  ERCIMDL 1999»
14 years 1 months ago
PIA - A Generic Model and System for Interactive Product and Service Catalogs
Abstract. This text motivates and de nes a generic model for interactive online or o ine product catalogs. Based on a detailed requirements analysis, the data model is de ned usi...
Florian Matthes, Ulrike Steffens
ICDE
2002
IEEE
189views Database» more  ICDE 2002»
14 years 10 months ago
A Fast Regular Expression Indexing Engine
In this paper, we describe the design, architecture, and the lessons learned from the implementation of a fast regular expression indexing engine FREE. FREE uses a prebuilt index ...
Junghoo Cho, Sridhar Rajagopalan