Pattern Matching under Polynomial Transformation
Pattern Matching under Polynomial Transformation
复制标题
多项式变换下的模式匹配
DOI:
10.1137/110853327
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发表时间:
2013
影响因子:
1.6
通讯作者:
Butman A
中科院分区:
文献类型:
--
作者:
Butman A
We consider a class of pattern matching problems where a normalizing polynomial transformation can be applied at every alignment of the pattern and text. Normalized pattern matching plays a key role in fields as diverse as image processing and musical information processing, where application specific transformations are often applied to the input. By considering a wide range of such transformations, we provide fast algorithms and the first lower bounds for both new and old problems. Given a pattern of lengthand a longer text of length, where both are assumed to contain integer values only, we first showtime algorithms for pattern matching under linear transformations even when wildcard symbols can occur in the input. We then show how to extend the technique to polynomial transformations of arbitrary degree. Next we consider the problem of finding the minimum Hamming distance under polynomial transformation. We show that, for any, there cannot exist antime algorithm for additive and linear transformations conditional on the hardness of the classic3Sumproblem. Finally, we consider a version of the Hamming distance problem under additive transformations with a boundon the maximum distance that needs to be reported. We give a deterministictime solution, which we then improve by careful use of randomization totime for sufficiently small. Our randomized solution outputs the correct answer at every position with high probability.
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DOI:
--
发表时间:
1995
期刊:
--
影响因子:
--
作者:
Jeff Erickson
通讯作者:
Jeff Erickson
影响因子:
1.1
作者:
Ilya Baran;E. Demaine;M. Patrascu
通讯作者:
M. Patrascu
DOI:
10.1145/237218.237225
发表时间:
1996
期刊:
SIAM J. Comput.
影响因子:
--
作者:
Jeff Erickson
通讯作者:
Jeff Erickson
影响因子:
0.5
作者:
Lipsky, Ohad;Porat, Ely
通讯作者:
Porat, Ely
DOI:
10.1006/inco.1995.1047
发表时间:
1991
期刊:
Inf. Comput.
影响因子:
--
作者:
A. Amir;Martín Farach
通讯作者:
Martín Farach