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» Implications of a Data Structure Consistency Checking System
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AMW
2009
13 years 8 months ago
Consistent Query Answering in Data Warehouses
Abstract. A Data Warehouse (DW) is a data repository that organizes and physically integrates data from multiple sources under special kinds of schemas. A DW is composed by a set o...
Leopoldo E. Bertossi, Loreto Bravo, Mónica ...
FOIKS
2004
Springer
13 years 11 months ago
Simplification of Integrity Constraints for Data Integration
When two or more databases are combined into a global one, integrity may be violated even when each database is consistent with its own local integrity constraints. Efficient metho...
Henning Christiansen, Davide Martinenghi
IDEAS
2007
IEEE
135views Database» more  IDEAS 2007»
14 years 2 months ago
Bitmap Index Design Choices and Their Performance Implications
Historically, bitmap indexing has provided an important database capability to accelerate queries. However, only a few database systems have implemented these indexes because of t...
Elizabeth J. O'Neil, Patrick E. O'Neil, Kesheng Wu
JCSS
2000
71views more  JCSS 2000»
13 years 7 months ago
Path Constraints in Semistructured Databases
We investigate a class of path constraints that is of interest in connection with both semistructured and structured data. In standard database systems, constraints are typically ...
Peter Buneman, Wenfei Fan, Scott Weinstein
ASPLOS
2011
ACM
12 years 11 months ago
Ensuring operating system kernel integrity with OSck
Kernel rootkits that modify operating system state to avoid detection are a dangerous threat to system security. This paper presents OSck, a system that discovers kernel rootkits ...
Owen S. Hofmann, Alan M. Dunn, Sangman Kim, Indraj...