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» Managing Expressions as Data in Relational Database Systems
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KDD
1998
ACM
148views Data Mining» more  KDD 1998»
15 years 11 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
DEXAW
2005
IEEE
117views Database» more  DEXAW 2005»
16 years 14 days ago
Wide-Area Replication Support for Global Data Repositories
Wide-area replication improves the availability and performance of globally distributed data repositories. Protocols needed for maintaining replication consistency may cause an un...
Hendrik Decker, Luis Irún-Briz, Rubé...
GEOS
2007
Springer
16 years 1 months ago
Applying Spatial Reasoning to Topographical Data with a Grounded Geographical Ontology
Abstract. Grounding an ontology upon geographical data has been proposed as a method of handling the vagueness in the domain more effectively. In order to do this, we require meth...
David Mallenby, Brandon Bennett
PAKDD
2009
ACM
103views Data Mining» more  PAKDD 2009»
16 years 1 months ago
Hot Item Detection in Uncertain Data
Abstract. An object o of a database D is called a hot item, if there is a sufficiently large population of other objects in D that are similar to o. In other words, hot items are ...
Thomas Bernecker, Hans-Peter Kriegel, Matthias Ren...
ICDE
2007
IEEE
128views Database» more  ICDE 2007»
16 years 8 months ago
SQL Queries Over Unstructured Text Databases
Text documents often embed data that is structured in nature. By processing a text database with information extraction systems, we can define a variety of structured "relati...
Alpa Jain, AnHai Doan, Luis Gravano