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Dynamic Suffix Array with Polylogarithmic Queries and Updates ...
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Breaking the $O(n)$-Barrier in the Construction of Compressed Suffix Arrays ...
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Time-Space Tradeoffs for Finding a Long Common Substring ...
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Abstract:
We consider the problem of finding, given two documents of total length $n$, a longest string occurring as a substring of both documents. This problem, known as the Longest Common Substring (LCS) problem, has a classic $O(n)$-time solution dating back to the discovery of suffix trees (Weiner, 1973) and their efficient construction for integer alphabets (Farach-Colton, 1997). However, these solutions require $Θ(n)$ space, which is prohibitive in many applications. To address this issue, Starikovskaya and Vildhøj (CPM 2013) showed that for $n^{2/3} \le s \le n^{1-o(1)}$, the LCS problem can be solved in $O(s)$ space and $O(\frac{n^2}{s})$ time. Kociumaka et al. (ESA 2014) generalized this tradeoff to $1 \leq s \leq n$, thus providing a smooth time-space tradeoff from constant to linear space. In this paper, we obtain a significant speed-up for instances where the length $L$ of the sought LCS is large. For $1 \leq s \leq n$, we show that the LCS problem can be solved in $O(s)$ space and ...
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Keyword:
Data Structures and Algorithms cs.DS; FOS Computer and information sciences
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URL: https://arxiv.org/abs/2003.02016 https://dx.doi.org/10.48550/arxiv.2003.02016
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Time-Space Tradeoffs for Finding a Long Common Substring ...
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Practical Performance of Space Efficient Data Structures for Longest Common Extensions ...
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Longest Unbordered Factor in Quasilinear Time
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Kociumaka, Tomasz; Kundu, Ritu; Mohamed, Manal. - : Schloss Dagstuhl - Leibniz-Zentrum fuer Informatik, 2018. : LIPIcs - Leibniz International Proceedings in Informatics. 29th International Symposium on Algorithms and Computation (ISAAC 2018), 2018
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Efficient Index for Weighted Sequences
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Barton, Carl; Kociumaka, Tomasz; Pissis, Solon P.. - : Schloss Dagstuhl - Leibniz-Zentrum fuer Informatik, 2016. : LIPIcs - Leibniz International Proceedings in Informatics. 27th Annual Symposium on Combinatorial Pattern Matching (CPM 2016), 2016
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Minimal Suffix and Rotation of a Substring in Optimal Time
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Kociumaka, Tomasz. - : Schloss Dagstuhl - Leibniz-Zentrum fuer Informatik, 2016. : LIPIcs - Leibniz International Proceedings in Informatics. 27th Annual Symposium on Combinatorial Pattern Matching (CPM 2016), 2016
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Minimal Suffix and Rotation of a Substring in Optimal Time ...
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Kociumaka, Tomasz. - : Schloss Dagstuhl - Leibniz-Zentrum fuer Informatik GmbH, Wadern/Saarbruecken, Germany, 2016
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Sparse Suffix Tree Construction in Optimal Time and Space ...
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Minimal Suffix and Rotation of a Substring in Optimal Time ...
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