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ICDT
2009
ACM
108views Database» more  ICDT 2009»
16 years 7 months ago
A compositional query algebra for second-order logic and uncertain databases
World-set algebra is a variable-free query language for uncertain databases. It constitutes the core of the query language implemented in MayBMS, an uncertain database system. Thi...
Christoph Koch
LICS
1998
IEEE
15 years 11 months ago
The Logical Role of the Four-Valued Bilattice
In his well-known paper \How computer should think" ( Be77b]) Belnap argues that four-valued semantics is a very suitable setting for computerized reasoning. In this paper we...
Ofer Arieli, Arnon Avron
IJAR
2006
241views more  IJAR 2006»
15 years 6 months ago
Spatial reasoning under imprecision using fuzzy set theory, formal logics and mathematical morphology
In spatial reasoning, in particular for applications in image understanding, structure recognition and computer vision, a lot of attention has to be paid to spatial relationships ...
Isabelle Bloch
SIGMOD
2004
ACM
156views Database» more  SIGMOD 2004»
16 years 6 months ago
Tree Logical Classes for Efficient Evaluation of XQuery
XML is widely praised for its flexibility in allowing repeated and missing sub-elements. However, this flexibility makes it challenging to develop a bulk algebra, which typically ...
Stelios Paparizos, Yuqing Wu, Laks V. S. Lakshmana...
CIKM
1999
Springer
15 years 11 months ago
Automatically Extracting Structure and Data from Business Reports
A considerable amount of clean semistructured data is internally available to companies in the form of business reports. However, business reports are untapped for data mining, da...
Stephen W. Liddle, Douglas M. Campbell, Chad Crawf...