Sciweavers

1438 search results - page 75 / 288
» An Expressive Extension of TLC
Sort
View
101
Voted
KRMED
2008
15 years 2 months ago
Exploiting Fast Classification of SNOMED CT for Query and Integration of Health Data
By constructing local extensions to SNOMED we aim to enrich existing medical and related data stores, simplify the expression of complex queries, and establish a foundation for se...
Michael Lawley
179
Voted
SIGMOD
2009
ACM
291views Database» more  SIGMOD 2009»
16 years 28 days ago
Partial join order optimization in the paraccel analytic database
The ParAccel Analytic DatabaseTM is a fast shared-nothing parallel relational database system with a columnar orientation, adaptive compression, memory-centric design, and an enha...
Yijou Chen, Richard L. Cole, William J. McKenna, S...
LICS
2009
IEEE
15 years 7 months ago
Logics with Rank Operators
—We introduce extensions of first-order logic (FO) and fixed-point logic (FP) with operators that compute the rank of a definable matrix. These operators are generalizations o...
Anuj Dawar, Martin Grohe, Bjarki Holm, Bastian Lau...
104
Voted
ER
2007
Springer
127views Database» more  ER 2007»
15 years 6 months ago
Update XML Data by Using Graphical Languages
To be a full-featured data exchange format, XML should support not only queries but also updates on its contents. The new W3C XML update facility has proposed a set of operators (...
Wei Ni, Tok Wang Ling
79
Voted
CORR
2007
Springer
162views Education» more  CORR 2007»
15 years 20 days ago
Order-Invariant MSO is Stronger than Counting MSO in the Finite
We compare the expressiveness of two extensions of monadic second-order logic (MSO) over the class of finite structures. The first, counting monadic second-order logic (CMSO), ex...
Tobias Ganzow, Sasha Rubin