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» Computing Tutte Polynomials
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FOCS
2002
IEEE
15 years 11 months ago
Market Equilibrium via a Primal-Dual-Type Algorithm
We provide the first polynomial time algorithm for the linear version of a market equilibrium model defined by Irving Fisher in 1891, thereby partially answering an open questio...
Nikhil R. Devanur, Christos H. Papadimitriou, Amin...
FCT
2001
Springer
15 years 10 months ago
Relating Automata-Theoretic Hierarchies to Complexity-Theoretic Hierarchies
We show that some natural refinements of the Straubing and Brzozowski hierarchies correspond (via the so called leaf-languages) step by step to similar refinements of the polynom...
Victor L. Selivanov
SIGGRAPH
1994
ACM
15 years 10 months ago
Smooth spline surfaces over irregular meshes
An algorithm for creating smooth spline surfaces over irregular meshes is presented. The algorithm is a generalization of quadratic B-splines; that is, if a mesh is (locally) regu...
Charles T. Loop
COCO
2010
Springer
215views Algorithms» more  COCO 2010»
15 years 10 months ago
Symmetry Coincides with Nondeterminism for Time-Bounded Auxiliary Pushdown Automata
—We show that every language accepted by a nondeterministic auxiliary pushdown automaton in polynomial time (that is, every language in SAC1 = Log(CFL)) can be accepted by a symm...
Eric Allender, Klaus-Jörn Lange
ACL
2003
15 years 7 months ago
Loosely Tree-Based Alignment for Machine Translation
We augment a model of translation based on re-ordering nodes in syntactic trees in order to allow alignments not conforming to the original tree structure, while keeping computati...
Daniel Gildea