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SIGMOD
2005
ACM
212views Database» more  SIGMOD 2005»
16 years 6 months ago
A Cost-Based Model and Effective Heuristic for Repairing Constraints by Value Modification
Data integrated from multiple sources may contain inconsistencies that violate integrity constraints. The constraint repair problem attempts to find "low cost" changes t...
Philip Bohannon, Michael Flaster, Wenfei Fan, Raje...
ICDE
2002
IEEE
149views Database» more  ICDE 2002»
16 years 7 months ago
Indexing Spatio-Temporal Data Warehouses
Spatio-temporal databases store information about the positions of individual objects over time. In many applications however, such as traffic supervision or mobile communication ...
Dimitris Papadias, Yufei Tao, Panos Kalnis, Jun Zh...
CIDM
2007
IEEE
16 years 18 days ago
GAIS: A Method for Detecting Interleaved Sequential Patterns from Imperfect Data
— This paper introduces a novel method, GAIS, for detecting interleaved sequential patterns from databases. A case, where data is of low quality and has errors is considered. Pat...
Marja Ruotsalainen, Timo Ala-Kleemola, Ari Visa
COMPGEOM
2004
ACM
15 years 11 months ago
Range counting over multidimensional data streams
We consider the problem of approximate range counting over streams of d-dimensional points. In the data stream model, the algorithm makes a single scan of the data, which is prese...
Subhash Suri, Csaba D. Tóth, Yunhong Zhou
DASFAA
2006
IEEE
109views Database» more  DASFAA 2006»
16 years 9 days ago
Assessing the Completeness of Sensor Data
In this paper we present a quality model highlighting the completeness of sensor data with respect to its application. The model allows consistent handling of information loss as d...
Jit Biswas, Felix Naumann, Qiang Qiu