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SIGMOD
2007
ACM
111views Database» more  SIGMOD 2007»
16 years 2 months ago
Query relaxation using malleable schemas
In contrast to classical databases and IR systems, real-world information systems have to deal increasingly with very vague and diverse structures for information management and s...
Xuan Zhou, Julien Gaugaz, Wolf-Tilo Balke, Wolfgan...
ACSAC
2001
IEEE
15 years 5 months ago
The Authorization Service of Tivoli Policy Director
This paper presents the Authorization Service provided by Tivoli Policy Director (PD) and its use by PD family members as well as third-party applications. Policies are defined ov...
Günter Karjoth
DATESO
2010
141views Database» more  DATESO 2010»
14 years 12 months ago
Reverse-engineering of XML Schemas: A Survey
As approaches to conceptual modeling of XML data become more popular, a need arises to reverse-engineer existing schemas to the conceptual models. They make the management of XML s...
Jakub Klímek, Martin Necasky
IJOCI
2010
163views more  IJOCI 2010»
14 years 11 months ago
An Experimental Performance Comparison for Indexing Mobile Objects on the Plane
We present a time-efficient approach to index objects moving on the plane to efficiently answer range queries about their future positions. Each object is moving with non small ve...
Spyros Sioutas, George Papaloukopoulos, Kostas Tsi...
VLDB
2006
ACM
124views Database» more  VLDB 2006»
16 years 2 months ago
Dynamic buffer management with extensible replacement policies
The objective of extensible DBMSs is to ease the construction of specialized DBMSs for nontraditional applications. Although much work has been done in providing various levels of ...
Chong Leng Goh, Yanfeng Shu, Zhiyong Huang, Beng C...