49 search results - page 2 / 10 » Some Properties of Query Languages for Bags |
JAPLL
2010
13 years 3 months ago
2010
The relational model has recently been extended to so-called K-relations in which tuples are assigned a unique value in a semiring K. A query language, denoted by RAC K , similar ...
ICTIR
2009
Springer
13 years 2 months ago
2009
Springer
Intuitively, any `bag of words' approach in IR should benefit from taking term dependencies into account. Unfortunately, for years the results of exploiting such dependencies ...
ICDT
2009
ACM
14 years 5 months ago
2009
ACM
The class of unions of conjunctive queries (UCQ) has been shown to be particularly well-behaved for data exchange; its certain answers can be computed in polynomial time (in terms...
ACSC
2006
IEEE
13 years 10 months ago
2006
IEEE
Information Retrieval (IR) is a major component in many of our daily activities, with perhaps its most prominent role manifested in search engines. Today’s most advanced engines...
ECEASST
2008
13 years 4 months ago
2008
The OCL (Object Constraint Language) as part of the UML (Unified Modeling Language) is a rich language with different collection kinds (sets, multi-sets, sequences) and a large var...