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ICDE
2005
IEEE
176views Database» more  ICDE 2005»
16 years 1 months ago
Optimizing ETL Processes in Data Warehouses
Extraction-Transformation-Loading (ETL) tools are pieces of software responsible for the extraction of data from several sources, their cleansing, customization and insertion into...
Alkis Simitsis, Panos Vassiliadis, Timos K. Sellis
ICDE
2007
IEEE
89views Database» more  ICDE 2007»
15 years 3 months ago
A Flexible Query Graph Based Model for the Efficient Execution of Continuous Queries
In this paper, we propose a simple and flexible execution model that (i) supports a wide spectrum of alternative optimization and execution strategies and their mixtures, (ii) pro...
Yijian Bai, Hetal Thakkar, Haixun Wang, Carlo Zani...
TIME
1994
IEEE
15 years 3 months ago
Using Constrained Resolution for Abductive Temporal Reasoning
We describe in this article an abductive procedure based on a constrained resolution principle. The choice of constrained resolution is motivated by the whish to gain full advanta...
Nicolas Chleq
JAIR
2000
105views more  JAIR 2000»
14 years 11 months ago
Reasoning on Interval and Point-based Disjunctive Metric Constraints in Temporal Contexts
We introduce a temporal model for reasoning on disjunctive metric constraints on intervals and time points in temporal contexts. This temporal model is composed of a labeled tempo...
Federico Barber
TIME
2005
IEEE
15 years 5 months ago
A Local Method for Prioritized Fusion of Temporal Information
Information often comes from different sources and merging these sources usually leads to the apparition of inconsistencies. Fusion is the operation which consists in restoring th...
Mahat Khelfallah, Belaid Benhamou