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FQAS
2004
Springer
103views Database» more  FQAS 2004»
14 years 28 days ago
A Unifying Framework for Flexible Information Access in Taxonomy-Based Sources
A taxonomy-based source consists of a taxonomy and a database storing objects that are indexed in terms of the taxonomy. For this kind of sources, we describe a flexible interacti...
Yannis Tzitzikas, Carlo Meghini, Nicolas Spyratos
IS
2007
13 years 7 months ago
Branch-and-bound processing of ranked queries
Despite the importance of ranked queries in numerous applications involving multi-criteria decision making, they are not efficiently supported by traditional database systems. In ...
Yufei Tao, Vagelis Hristidis, Dimitris Papadias, Y...
VLDB
2009
ACM
130views Database» more  VLDB 2009»
14 years 7 months ago
Multi-dimensional top-k dominating queries
Abstract The top-k dominating query returns k data objects which dominate the highest number of objects in a dataset. This query is an important tool for decision support since it ...
Man Lung Yiu, Nikos Mamoulis
PPDP
2010
Springer
13 years 6 months ago
Graph queries through datalog optimizations
This paperdescribes the use of a powerful graph query language for querying programs, and a novel combination of transformations for generating efficient implementations of the q...
K. Tuncay Tekle, Michael Gorbovitski, Yanhong A. L...
DKE
1998
97views more  DKE 1998»
13 years 7 months ago
A Temporal Approach to Managing Schema Evolution in Object Database Systems
The issues of schema evolution and temporal object models are generally considered to be orthogonal and are handled independently. However, to properly model applications that nee...
Iqbal A. Goralwalla, Duane Szafron, M. Tamer Ö...