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DANTE
1999
IEEE
150views Database» more  DANTE 1999»
15 years 11 months ago
Modeling and Executing the Data Warehouse Refreshment Process
Data warehouse refreshment is often viewed as a problem of maintaining materialized views over operational sources. In this paper, we show that the data warehouse refreshment proc...
Athanasios Vavouras, Stella Gatziu, Klaus R. Dittr...
VLDB
1999
ACM
124views Database» more  VLDB 1999»
15 years 11 months ago
Cost Models DO Matter: Providing Cost Information for Diverse Data Sources in a Federated System
An important issue for federated systems of diverse data sources is optimizing cross-source queries, without building knowledge of individual sources into the optimizer. This pape...
Mary Tork Roth, Fatma Ozcan, Laura M. Haas
ICANNGA
2007
Springer
129views Algorithms» more  ICANNGA 2007»
15 years 10 months ago
Multi-class Support Vector Machines Based on Arranged Decision Graphs and Particle Swarm Optimization for Model Selection
Abstract. The use of support vector machines for multi-category problems is still an open field to research. Most of the published works use the one-against-rest strategy, but with...
Javier Acevedo, Saturnino Maldonado-Bascón,...
ICCSA
2007
Springer
15 years 10 months ago
Modeling a Legged Robot for Visual Servoing
This article presents a contribution to the visual tracking of objects using all the degrees of freedom of an Aibo ERS-7 robot. We approach this issue in a principled way applying ...
Zelmar Echegoyen, Alicia D'Anjou, Manuel Gra&ntild...
KES
2000
Springer
15 years 10 months ago
Extracting geometric models from medieval moulding profiles for case-based reasoning
Cross-sectional pmfiles of medieval mouldings are often considered to be a vital form of data to Art Historians. Mouldings were often used to highlight salient areas of buildings,...
Gareth Bradshaw, Carol O'Sullivan