160 search results - page 21 / 32 » Structural characterizations of schema-mapping languages |
CI
2002
13 years 7 months ago
2002
We present here a theory of motion from a topological point of view, in a symbolic perspective. Taking space-time histories of objects as primitive entities, we introduce temporal...
EDOC
2004
IEEE
13 years 11 months ago
2004
IEEE
In this paper we introduce a logical viewpoint on architectures. The logical viewpoint is based on the distinction between symbolic and semantic models of architectures. The core ...
AAAI
1998
13 years 9 months ago
1998
qYaditionally, constraint satisfaction problems(CSPs) are characterized using a finite set of constraints expressed within a common,shared constraint language. Whenreasoning acros...
STACS
1994
Springer
13 years 11 months ago
1994
Springer
The L ? = NL question remains one of the major unresolved problems in complexity theory. Both L and NL have logical characterizations as the sets of totally ordered ( ) structures...
AML
2002
13 years 7 months ago
2002
For a classical theory T, H(T) denotes the intuitionistic theory of T-normal (i.e. locally T) Kripke structures. S. Buss has asked for a characterization of the theories in the ra...