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» The Complexity of Polynomial-Time Approximation
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CPM
2000
Springer
136views Combinatorics» more  CPM 2000»
13 years 12 months ago
Approximating the Maximum Isomorphic Agreement Subtree Is Hard
The Maximum Isomorphic Agreement Subtree (MIT) problem is one of the simplest versions of the Maximum Interval Weight Agreement Subtree method (MIWT) which is used to compare phyl...
Paola Bonizzoni, Gianluca Della Vedova, Giancarlo ...
DATE
2008
IEEE
95views Hardware» more  DATE 2008»
14 years 2 months ago
Improvements in Polynomial-Time Feasibility Testing for EDF
This paper presents two fully polynomial-time sufficient feasibility tests for EDF when considering periodic tasks with arbitrary deadlines and preemptive scheduling on uniproces...
Alejandro Masrur, Sebastian Drossler, Georg Farber
CORR
2006
Springer
88views Education» more  CORR 2006»
13 years 7 months ago
Polynomial Time Nondimensionalisation of Ordinary Differential Equations via their Lie Point Symmetries
Lie group theory states that knowledge of a m-parameters solvable group of symmetries of a system of ordinary differential equations allows to reduce by m the number of equation. ...
Evelyne Hubert, Alexandre Sedoglavic
SIAMCOMP
2010
172views more  SIAMCOMP 2010»
13 years 2 months ago
Deterministic Polynomial Time Algorithms for Matrix Completion Problems
We present new deterministic algorithms for several cases of the maximum rank matrix completion problem (for short matrix completion), i.e. the problem of assigning values to the ...
Gábor Ivanyos, Marek Karpinski, Nitin Saxen...
EMNLP
2008
13 years 9 months ago
Complexity of Finding the BLEU-optimal Hypothesis in a Confusion Network
Confusion networks are a simple representation of multiple speech recognition or translation hypotheses in a machine translation system. A typical operation on a confusion network...
Gregor Leusch, Evgeny Matusov, Hermann Ney