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  1. Proceedings of the 2nd international workshop on Information quality in information systems (IQIS '05)
  2. ETL queues for active data warehousing
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Handling data quality in entity resolution
Methods and analyses for determining quality
Provider issues in quality-constrained data provisioning
Exploiting relationships for object consolidation
Approximate matching of textual domain attributes for information source integration
Making quality count in biological data sources
Blocking-aware private record linkage
Clustering mixed numerical and low quality categorical data: significance metrics on a yeast example
ETL queues for active data warehousing
Effective and scalable solutions for mixed and split citation problems in digital libraries
Data cleaning using belief propagation
An event based framework for improving information quality that integrates baseline models, causal models and formal reference models
Data quality inference

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ETL queues for active data warehousing

Content Provider ACM Digital Library
Author Karakasidis, Alexandros Vassiliadis, Panos Pitoura, Evaggelia
Abstract Traditionally, the refreshment of data warehouses has been performed in an off-line fashion. Active Data Warehousing refers to a new trend where data warehouses are updated as frequently as possible, to accommodate the high demands of users for fresh data. In this paper, we propose a framework for the implementation of active data warehousing, with the following goals: (a) minimal changes in the software configuration of the source, (b) minimal overhead for the source due to the active nature of data propagation, (c) the possibility of smoothly regulating the overall configuration of the environment in a principled way. In our framework, we have implemented ETL activities over queue networks and employ queue theory for the prediction of the performance and the tuning of the operation of the overall refreshment process. Due to the performance overheads incurred, we explore different architectural choices for this task and discuss the issues that arise for each of them.
Starting Page 28
Ending Page 39
Page Count 12
File Format PDF
ISBN 1595931600
DOI 10.1145/1077501.1077509
Language English
Publisher Association for Computing Machinery (ACM)
Publisher Date 2005-06-17
Publisher Place New York
Access Restriction Subscribed
Content Type Text
Resource Type Article
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