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DBA
2004
72views Database» more  DBA 2004»
14 years 11 months ago
Explicit and Implicit LIST Aggregate Function for Relational Databases
We argue for a new aggregate function we termed the LIST function. It aggregates a set of values of one or more attributes into a single value that is internally a list of these v...
Witold Litwin
DATAMINE
1998
126views more  DATAMINE 1998»
14 years 9 months ago
An Extension to SQL for Mining Association Rules
Data mining evolved as a collection of applicative problems and efficient solution algorithms relative to rather peculiar problems, all focused on the discovery of relevant infor...
Rosa Meo, Giuseppe Psaila, Stefano Ceri
JIDM
2010
160views more  JIDM 2010»
14 years 8 months ago
Evaluation of Conditional Preference Queries
The need for incorporating preference querying in database technology is a very important issue in a variety of applications ranging from e-commerce to personalized search engines....
Fabiola S. F. Pereira, Sandra de Amo
VLDB
2000
ACM
166views Database» more  VLDB 2000»
15 years 1 months ago
Oracle8i Index-Organized Table and Its Application to New Domains
Primary B+ -tree, a variant of B+ -tree structure with row data in leaf blocks, is an ideal storage organization for queries involving exact match and/or range search on primary k...
Jagannathan Srinivasan, Souripriya Das, Chuck Frei...
ISSRE
2010
IEEE
14 years 8 months ago
Security Trend Analysis with CVE Topic Models
—We study the vulnerability reports in the Common Vulnerability and Exposures (CVE) database by using topic models on their description texts to find prevalent vulnerability typ...
Stephan Neuhaus, Thomas Zimmermann