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» On the structure of the Medvedev lattice
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ECAI
2004
Springer
15 years 1 months ago
OntoRefiner, a user query refinement interface usable for Semantic Web Portals
We present a user interface, the OntoRefiner1 system, for helping the user to navigate numerous retrieved documents after a search querying a semantic portal which integrates a ver...
Brigitte Safar, Hassen Kefi, Chantal Reynaud
92
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ICGI
2010
Springer
14 years 6 months ago
Learning Context Free Grammars with the Syntactic Concept Lattice
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...
Alexander Clark
CALC
2001
Springer
161views Cryptology» more  CALC 2001»
15 years 1 months ago
The Shortest Vector Problem in Lattices with Many Cycles
In this paper we investigate how the complexity of the shortest vector problem in a lattice Λ depends on the cycle structure of the additive group Zn /Λ. We give a proof that the...
Mårten Trolin
ICCS
2005
Springer
15 years 2 months ago
Isotropic Vector Matrix Grid and Face-Centered Cubic Lattice Data Structures
Techniques for generating data structures for isotropic vector matrix grids (or face-centered cubic lattices) are presented. Grid basics and some background mathematical foundation...
J. F. Nystrom, Carryn Bellomo
AAECC
2002
Springer
132views Algorithms» more  AAECC 2002»
14 years 9 months ago
Lattice Structure and Linear Complexity of Nonlinear Pseudorandom Numbers
It is shown that a q-periodic sequence over the finite field Fq passes an extended version of Marsaglia's lattice test for high dimensions if and only if its linear complexity...
Harald Niederreiter, Arne Winterhof