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» Ontological Framework for Approximation
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PVLDB
2008
111views more  PVLDB 2008»
15 years 4 months ago
Approximate lineage for probabilistic databases
In probabilistic databases, lineage is fundamental to both query processing and understanding the data. Current systems s.a. Trio or Mystiq use a complete approach in which the li...
Christopher Ré, Dan Suciu
MICAI
2004
Springer
15 years 10 months ago
Graduated Errors in Approximate Queries Using Hierarchies and Ordered Sets
Abstract. Often, qualitative values have an ordering, such as (veryshort, short, medium-height, tall) or a hierarchical level, such as (TheWorld, Europe, Spain, Madrid), which are ...
Adolfo Guzmán-Arenas, Serguei Levachkine
EUSFLAT
2001
108views Fuzzy Logic» more  EUSFLAT 2001»
15 years 6 months ago
Approximate equality is no fuzzy equality
We argue that fuzzy equivalences, and in particular fuzzy equalities, in general are not suitable to model approximate equality due to the notion of transitivity. Using them for t...
Martine De Cock, Etienne E. Kerre
ICDT
2009
ACM
166views Database» more  ICDT 2009»
16 years 5 months ago
A compositional framework for complex queries over uncertain data
The ability to flexibly compose confidence computation with the operations of relational algebra is an important feature of probabilistic database query languages. Computing confi...
Christoph Koch, Michaela Götz
149
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JODS
2006
166views Data Mining» more  JODS 2006»
15 years 4 months ago
Model-Driven Ontology Engineering
W3C's Semantic Web provides a common framework that allows data to be shared and reused across application and enterprise. As the Semantic Web shapes the future of the Web, it...
Yue Pan, Guo Tong Xie, Li Ma, Yang Yang, Zhaoming ...