Local Patterns
Local Patterns
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发表时间:
2017
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通讯作者:
Dirk Nowotka
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作者:
Joel D. Day;Pamela Fleischmann;F. Manea;Dirk Nowotka
A pattern is a word consisting of constants from an alphabet Σ of terminal symbols and variables from a set X. Given a pattern α, the decision-problem whether a given word w may be obtained by substituting the variables in α for words over Σ is called the matching problem. While this problem is, in general, NP-complete, several classes of patterns for which it can be efficiently solved are already known. We present two new classes of patterns, called k-local, and stronglynested, and show that the respective matching problems, as well as membership can be solved efficiently for any fixed k. 1998 ACM Subject Classification F.4.3 Formal Languages, F.2.2 Nonnumerical Algorithms and
DOI:
10.1007/978-3-319-67428-5_22
发表时间:
2017
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作者:
Dmitry Kosolobov;Florin Manea;Dirk Nowotka
通讯作者:
Dirk Nowotka