81 search results - page 13 / 17 » Closure of Language Classes Under Bounded Duplication |
ICDT
2010
ACM
13 years 6 months ago
2010
ACM
Schema mapping composition is a fundamental operation in schema management and data exchange. The mapping composition problem has been extensively studied for a number of mapping ...
ALT
2006
Springer
14 years 4 months ago
2006
Springer
This paper presents a novel paradigm for learning languages that consists of mapping strings to an appropriate high-dimensional feature space and learning a separating hyperplane i...
ICGI
2010
Springer
13 years 4 months ago
2010
Springer
The Syntactic Concept Lattice is a residuated lattice based on the distributional structure of a language; the natural representation based on this is a context sensitive formalism...
PODS
2009
ACM
14 years 8 months ago
2009
ACM
Relational schema mappings have been extensively studied in connection with data integration and exchange problems, but mappings between XML schemas have not received the same amo...
FOCS
2003
IEEE
14 years 24 days ago
2003
IEEE
We give a complexity theoretic classification of homomorphism problems for graphs and, more generally, relational structures obtained by restricting the left hand side structure ...