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AMW
2009
15 years 7 months ago
Consistent Query Answering in Data Warehouses
Abstract. A Data Warehouse (DW) is a data repository that organizes and physically integrates data from multiple sources under special kinds of schemas. A DW is composed by a set o...
Leopoldo E. Bertossi, Loreto Bravo, Mónica ...
JCO
2010
101views more  JCO 2010»
15 years 5 months ago
Separator-based data reduction for signed graph balancing
Abstract Polynomial-time data reduction is a classical approach to hard graph problems. Typically, particular small subgraphs are replaced by smaller gadgets. We generalize this ap...
Falk Hüffner, Nadja Betzler, Rolf Niedermeier
PKDD
2010
Springer
124views Data Mining» more  PKDD 2010»
15 years 5 months ago
Summarising Data by Clustering Items
Abstract. For a book, the title and abstract provide a good first impression of what to expect from it. For a database, getting a first impression is not so straightforward. Whil...
Michael Mampaey, Jilles Vreeken
TKDE
2010
151views more  TKDE 2010»
15 years 5 months ago
Duplicate-Insensitive Order Statistics Computation over Data Streams
—Duplicates in data streams may often be observed by the projection on a subspace and/or multiple recordings of objects. Without the uniqueness assumption on observed data elemen...
Ying Zhang, Xuemin Lin, Yidong Yuan, Masaru Kitsur...
ICDE
2008
IEEE
146views Database» more  ICDE 2008»
16 years 8 months ago
Handling Uncertain Data in Array Database Systems
Scientific and intelligence applications have special data handling needs. In these settings, data does not fit the standard model of short coded records that had dominated the dat...
Tingjian Ge, Stanley B. Zdonik