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VLDB
2007
ACM
137views Database» more  VLDB 2007»
16 years 4 months ago
Improving Data Quality: Consistency and Accuracy
Two central criteria for data quality are consistency and accuracy. Inconsistencies and errors in a database often emerge as violations of integrity constraints. Given a dirty dat...
Gao Cong, Wenfei Fan, Floris Geerts, Xibei Jia, Sh...
DASFAA
2007
IEEE
151views Database» more  DASFAA 2007»
15 years 6 months ago
The Tornado Model: Uncertainty Model for Continuously Changing Data
To support emerging database applications that deal with continuously changing (or moving) data objects (CCDOs), such as vehicles, RFIDs, and multi-stimuli sensors, one requires an...
Byunggu Yu, Seon Ho Kim, Shayma Alkobaisi, Wan D. ...
IEAAIE
2009
Springer
15 years 11 months ago
An Efficient Algorithm for Maintaining Frequent Closed Itemsets over Data Stream
Data mining refers to the process of revealing unknown and potentially useful information from a large database. Frequent itemsets mining is one of the foundational problems in dat...
Show-Jane Yen, Yue-Shi Lee, Cheng-Wei Wu, Chin-Lin...
GISCIENCE
2004
Springer
121views GIS» more  GISCIENCE 2004»
15 years 9 months ago
Semi-automatic Ontology Alignment for Geospatial Data Integration
In geospatial applications with heterogeneous databases, an ontology-driven approach to data integration relies on the alignment of the concepts of a global ontology that describe ...
Isabel F. Cruz, William Sunna, Anjli Chaudhry
SIGMOD
2006
ACM
161views Database» more  SIGMOD 2006»
16 years 4 months ago
Paper-based mobile access to databases
Our demonstration is a paper-based interactive guide for visitors to the world's largest international arts festival that was developed as part of a project investigating new...
Beat Signer, Moira C. Norrie, Michael Grossniklaus...