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» Managing Source Quality Changes in a Data Integration System
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GIS
2004
ACM
16 years 2 months ago
Query processing in a geographic mediation system
Despite various interoperability recommendations, heterogeneity of Geographic Information Systems (GIS) is still an issue. This led to an increasing need for a data integration sy...
François-Marie Colonna, Mehdi Essid, Omar B...
SIGMOD
2007
ACM
183views Database» more  SIGMOD 2007»
16 years 2 months ago
Leveraging aggregate constraints for deduplication
We show that aggregate constraints (as opposed to pairwise constraints) that often arise when integrating multiple sources of data, can be leveraged to enhance the quality of dedu...
Surajit Chaudhuri, Anish Das Sarma, Venkatesh Gant...
INCDM
2010
Springer
204views Data Mining» more  INCDM 2010»
15 years 5 months ago
Combining Business Process and Data Discovery Techniques for Analyzing and Improving Integrated Care Pathways
Hospitals increasingly use process models for structuring their care processes. Activities performed to patients are logged to a database but these data are rarely used for managin...
Jonas Poelmans, Guido Dedene, Gerda Verheyden, Her...
CIKM
2004
Springer
15 years 7 months ago
Organizing structured web sources by query schemas: a clustering approach
In the recent years, the Web has been rapidly “deepened” with the prevalence of databases online. On this deep Web, many sources are structured by providing structured query i...
Bin He, Tao Tao, Kevin Chen-Chuan Chang
CAISE
2003
Springer
15 years 5 months ago
Time Related Factors of Data Accuracy, Completeness, and Currency in Multi-Channel Information Systems
Multi-channel information systems involve data redundancy, which, in turn, requires the implementation of synchronization mechanisms among overlapping databases. This need for peri...
Cinzia Cappiello, Chiara Francalanci, Barbara Pern...