(Enter summary)
Abstract: We present an index to search a two-dimensional pattern of size m × m in a two-dimensional text of size n × n, even when the pattern appears rotated in the text. The index is based on suffix trees. By using O(n 2 ) space the index can search the pattern in O(m 5 ) worst case time and in O(log oe (n) 5=2 ) on average, where oe is the alphabet size. A larger index of size O(n 2 log oe (n) 3=2 ) yields an average search time of O(log oe n). We also discuss alternative matching models. (Update)
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BibTeX entry: (Update)
K. Fredriksson, G. Navarro, and E. Ukkonen. An index for two dimensional string matching allowing rotations. In IFIP TCS2000, 2000. To appear. http://citeseer.ist.psu.edu/article/fredriksson00index.html More
@inproceedings{ fredriksson00index,
author = "Kimmo Fredriksson and Gonzalo Navarro and Esko Ukkonen",
title = "An Index for Two Dimensional String Matching Allowing Rotations",
booktitle = "{IFIP} {TCS}",
pages = "59--75",
year = "2000",
url = "citeseer.ist.psu.edu/article/fredriksson00index.html" }
Citations (may not include all citations):
47
New indices for text: PAT trees and PAT arrays (context) - Gonnet, Baeza-Yates et al. - 1992
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Approximate string matching over suffix trees
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A rotation invariant filter for two-dimensional string match..
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Combinatorial methods for approximate pattern matching under..
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A new indexing method for approximate string matching
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the construction of classes of suffix trees for square matri.. (context) - Giancarlo, Grossi - 1996
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A generalization of suffix trees to square matrices (context) - Giancarlo - 1995
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