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» Positive Versions of Polynomial Time
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SPIRE
2007
Springer
15 years 4 months ago
Generalized LCS
The Longest Common Subsequence (LCS) is a well studied problem, having a wide range of implementations. Its motivation is in comparing strings. It has long been of interest to dev...
Amihood Amir, Tzvika Hartman, Oren Kapah, B. Riva ...
FSTTCS
2004
Springer
15 years 3 months ago
Testing Geometric Convexity
We consider the problem of determining whether a given set S in Rn is approximately convex, i.e., if there is a convex set K ∈ Rn such that the volume of their symmetric differe...
Luis Rademacher, Santosh Vempala
CPM
2000
Springer
136views Combinatorics» more  CPM 2000»
15 years 2 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 ...
AAAI
2000
14 years 11 months ago
Divide-and-Conquer Frontier Search Applied to Optimal Sequence Alignment
We present a new algorithm that reduces the space complexity of heuristic search. It is most effective for problem spaces that grow polynomially with problem size, but contain lar...
Richard E. Korf, Weixiong Zhang
AML
2005
104views more  AML 2005»
14 years 9 months ago
Weak theories of linear algebra
Abstract. We investigate the theories LA, LAP, LAP of linear algebra, which were originally defined to study the question of whether commutativity of matrix inverses has polysize F...
Neil Thapen, Michael Soltys