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» Scalable Package Queries in Relational Database Systems
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GIS
2008
ACM
15 years 11 months ago
Should SDBMS support a join index?: a case study from CrimeStat
Given a spatial crime data warehouse, that is updated infrequently and a set of operations O as well as constraints of storage and update overheads, the index type selection probl...
Pradeep Mohan, Ronald E. Wilson, Shashi Shekhar, B...
KDD
1998
ACM
148views Data Mining» more  KDD 1998»
15 years 2 months ago
Group Bitmap Index: A Structure for Association Rules Retrieval
Discovery of association rules from large databases of item sets is an important data mining problem. Association rules are usually stored in relational databases for future use i...
Tadeusz Morzy, Maciej Zakrzewicz
SIGMOD
2003
ACM
136views Database» more  SIGMOD 2003»
15 years 10 months ago
A Characterization of the Sensitivity of Query Optimization to Storage Access Cost Parameters
Most relational query optimizers make use of information about the costs of accessing tuples and data structures on various storage devices. This information can at times be off b...
Frederick Reiss, Tapas Kanungo
SEMWEB
2004
Springer
15 years 3 months ago
ORIENT: Integrate Ontology Engineering into Industry Tooling Environment
Orient is a project to develop an ontology engineering tool that integrates into existing industry tooling environments – the Eclipse platform and the WebSphere Studio developing...
Lei Zhang, Yong Yu, Jing Lu, Chenxi Lin, Kewei Tu,...
CLOUDCOM
2010
Springer
14 years 7 months ago
Voronoi-Based Geospatial Query Processing with MapReduce
Geospatial queries (GQ) have been used in a wide variety of applications such as decision support systems, profile-based marketing, bioinformatics and GIS. Most of the existing qu...
Afsin Akdogan, Ugur Demiryurek, Farnoush Banaei Ka...