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IJCAI
2003
15 years 5 months ago
Layered Mereotopology
In fields such as medicine, geography, and mechanics, spatial reasoning involves reasoning about entities—for example cavities and invading particles—that may coincide without...
Maureen Donnelly
ARSCOM
2006
74views more  ARSCOM 2006»
15 years 4 months ago
Some New Steiner 2-Designs S(2, 4, 37)
Automorphisms of Steiner 2-designs S(2, 4, 37) are studied and used to find many new examples. Some of the constructed designs have S(2, 3, 9) subdesigns, closing the last gap in t...
Vedran Krcadinac
COMBINATORICS
2006
124views more  COMBINATORICS 2006»
15 years 4 months ago
Cubic Partial Cubes from Simplicial Arrangements
We show how to construct a cubic partial cube from any simplicial arrangement of lines or pseudolines in the projective plane. As a consequence, we find nine new infinite families...
David Eppstein
AAECC
2004
Springer
100views Algorithms» more  AAECC 2004»
15 years 4 months ago
Convolutional Codes of Goppa Type
A new kind of Convolutional Codes generalizing Goppa Codes is proposed. This provides a systematic method for constructing convolutional codes with prefixed properties. In particul...
J. A. Domínguez Pérez, J. M. Mu&ntil...
JUCS
2007
102views more  JUCS 2007»
15 years 4 months ago
Pedagogical Natural Deduction Systems: the Propositional Case
: This paper introduces the notion of pedagogical natural deduction systems, which are natural deduction systems with the following additional constraint: all hypotheses made in a ...
Loïc Colson, David Michel