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» Decision Problems for Convex Languages
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LATA
2009
Springer
13 years 11 months ago
Decision Problems for Convex Languages
We examine decision problems for various classes of convex languages, previously studied by Ang and Brzozowski under the name “continuous languages”. We can decide whether a la...
Janusz A. Brzozowski, Jeffrey Shallit, Zhi Xu
COMPGEOM
1996
ACM
13 years 9 months ago
New Lower Bounds for Convex Hull Problems in Odd Dimensions
We show that in the worst case, (ndd=2e;1 +n logn) sidedness queries are required to determine whether the convex hull of n points in IRd is simplicial, or to determine the number ...
Jeff Erickson
COR
2002
90views more  COR 2002»
13 years 4 months ago
Extremist vs. centrist decision behavior: quasi-convex utility functions for interactive multi-objective linear programming prob
This paper presents the fundamental theory and algorithms for identifying the most preferred alternative for a decision maker (DM) having a non-centrist (or extremist) preferentia...
Behnam Malakooti, Jumah E. Al-alwani
MFCS
2005
Springer
13 years 10 months ago
Strict Language Inequalities and Their Decision Problems
Systems of language equations of the form {ϕ(X1, . . . , Xn) = ∅, ψ(X1, . . . , Xn) = ∅} are studied, where ϕ, ψ may contain set-theoretic operations and concatenation; the...
Alexander Okhotin