The Least Weight Subsequence Problem
نویسندگان
چکیده
منابع مشابه
The Longest Common Subsequence Problem
Algorithms on sequences of symbols have been studied for a long time and now form a fundamental part of computer science. One of the very important problems in analysis of sequences is the longest common subsequence problem. For the general case of an arbitrary number of input sequences, the problem is NP-hard. We describe an approach to solve this problem. This approach is based on constructin...
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Given two strings, text t of length n, and pattern p = p1 : : : pk of length k, and given a natural number w, the subsequence matching problem consists in nding the number of size w windows of text t which contain pattern p as a subsequence, i.e. the letters p1 ; : : : ; pk occur in the window, in the same order as in p, but not necessarily consecutively (they may be interleaved with other lett...
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The problem of the longest common subsequence is a classical distance measure for strings. There have been several attempts to accommodate longest common subsequences along with some other distance measures. There are a large number of different variants of the problem. In this paper, we consider the constrained longest common subsequence problem for two strings and arbitrary number of constrai...
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This paper considers a constrained version of longest common subsequence problem for two strings. Given strings S1, S2 and P , the constrained longest common subsequence problem for S1 and S2 with respect to P is to find a longest common subsequence lcs of S1 and S2 such that P is a subsequence of this lcs. An O(rn 2m2) time algorithm based upon the dynamic programming technique is proposed for...
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ژورنال
عنوان ژورنال: SIAM Journal on Computing
سال: 1987
ISSN: 0097-5397,1095-7111
DOI: 10.1137/0216043