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ICDE
2010
IEEE
311views Database» more  ICDE 2010»
16 years 2 months ago
Detecting Inconsistencies in Distributed Data
— One of the central problems for data quality is inconsistency detection. Given a database D and a set Σ of dependencies as data quality rules, we want to identify tuples in D ...
Wenfei Fan, Floris Geerts, Shuai Ma, Heiko Mü...
ICDE
1994
IEEE
103views Database» more  ICDE 1994»
15 years 9 months ago
A Multi-Set Extended Relational Algebra - A Formal Approach to a Practical Issue
The relational data model is based on sets of tuples, i.e. it does not allow duplicate tuples in a relation. Many database languages and systems do require multi-set place, the hi...
Paul W. P. J. Grefen, Rolf A. de By
ICDT
2010
ACM
195views Database» more  ICDT 2010»
15 years 9 months ago
Answering Non-Monotonic Queries in Relational Data Exchange
Relational data exchange deals with translating a relational database instance over some source schema into a relational database instance over some target schema, according to a ...
André Hernich
ICDE
2010
IEEE
180views Database» more  ICDE 2010»
15 years 5 months ago
Adaptive indexing for relational keys
: © Adaptive indexing for relational keys Goetz Graefe, Harumi Kuno HP Laboratories HPL-2010-23 databases, indexes, storage systems, B-trees, adaptive merging, database cracking A...
Goetz Graefe, Harumi A. Kuno
LREC
2008
111views Education» more  LREC 2008»
15 years 6 months ago
Using Lexical Acquisition to Enrich a Predicate Argument Reusable Database
The work described in this paper aims to enrich the noun classifications of an existing database of lexical resources (de Matos and Ribeiro, 2004) adding missing information such ...
Paula Cristina Vaz, David Martins de Matos, Nuno J...