Sciweavers

2468 search results - page 329 / 494
» Aggregation operators 2003
Sort
View
DLOG
2003
13 years 10 months ago
Index Selection for Embedded Control Applications using Description Logics
We consider the problem of automated index selection for embedded control programs (ECPs). Such systems have the property that the transaction types, which can consist of queries ...
Lubomir Stanchev, Grant E. Weddell
DLT
2003
13 years 10 months ago
Boolean Grammars
A new generalization of context-free grammars is introduced: Boolean grammars allow the use of all set-theoretic operations as an integral part of the formalism of rules. Rigorous...
Alexander Okhotin
DLT
2003
13 years 10 months ago
Tile Rewriting Grammars
Past proposals for applying to pictures or 2D languages the generative grammar approach do not match in our opinion the elegance and descriptive adequacy that made Context Free gr...
Stefano Crespi-Reghizzi, Matteo Pradella
EACL
2003
ACL Anthology
13 years 10 months ago
Describing Syntax with Star-Free Regular Expressions
Syntactic constraints in Koskenniemi’s Finite-State Intersection Grammar (FSIG) are logically less complex than their formalism (Koskenniemi et al., 1992) would suggest: It turn...
Anssi Yli-Jyrä
ECSCW
2003
13 years 10 months ago
Dependable Red Hot Action
We present a brief observational, ‘ethnographic’, study of the Roughing Mill in a steel plant and use material from recorded activities to provide ‘illustrative vignettes’ ...
Karen Clarke, John A. Hughes, David Martin, Mark R...