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VLDB
2002
ACM
108views Database» more  VLDB 2002»
13 years 7 months ago
Generic Database Cost Models for Hierarchical Memory Systems
Accurate prediction of operator execution time is a prerequisite for database query optimization. Although extensively studied for conventional disk-based DBMSs, cost modeling in ...
Stefan Manegold, Peter A. Boncz, Martin L. Kersten
PR
2006
101views more  PR 2006»
13 years 7 months ago
Feature-based approach to semi-supervised similarity learning
For the management of digital document collections, automatic database analysis still has ties to deal with semantic queries and abstract concepts that users are looking for. When...
Philippe Henri Gosselin, Matthieu Cord
VLDB
2000
ACM
120views Database» more  VLDB 2000»
13 years 11 months ago
Integrating the UB-Tree into a Database System Kernel
Multidimensional access methods have shown high potential for significant performance improvements in various application domains. However, only few approaches have made their way...
Frank Ramsak, Volker Markl, Robert Fenk, Martin Zi...
DOLAP
2009
ACM
14 years 2 months ago
A taxonomy of ETL activities
Extract-Transform-Load (ETL) activities are software modules responsible for populating a data warehouse with operational data, which have undergone a series of transformations on...
Panos Vassiliadis, Alkis Simitsis, Eftychia Baikou...
FGR
2011
IEEE
227views Biometrics» more  FGR 2011»
12 years 11 months ago
Warp that smile on your face: Optimal and smooth deformations for face recognition
— In this work, we present novel warping algorithms for full 2D pixel-grid deformations for face recognition. Due to high variation in face appearance, face recognition is consid...
Tobias Gass, Leonid Pishchulin, Philippe Dreuw, He...