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» Computing Tutte Polynomials
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FOCS
2002
IEEE
15 years 10 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...
142
Voted
FCT
2001
Springer
15 years 9 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
118
Voted
SIGGRAPH
1994
ACM
15 years 9 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 9 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
116
Voted
ACL
2003
15 years 6 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