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相关论文: An Improved Algorithm for The $k$-Dyck Edit Distan…

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Edit distance is an important measure of string similarity. It counts the number of insertions, deletions and substitutions one has to make to a string $x$ to get a string $y$. In this paper we design an almost linear-size sketching scheme…

数据结构与算法 · 计算机科学 2024-06-18 Michal Koucký , Michael Saks

The edit distance of two strings is the minimum number of insertions, deletions, and substitutions of characters needed to transform one string into the other. The textbook dynamic-programming algorithm computes the edit distance of two…

数据结构与算法 · 计算机科学 2023-10-25 Alejandro Cassis , Tomasz Kociumaka , Philip Wellnitz

Edit distance, also known as Levenshtein distance, is an essential way to compare two strings that proved to be particularly useful in the analysis of genetic sequences and natural language processing. However, edit distance is a discrete…

机器学习 · 计算机科学 2019-04-30 Evgenii Ofitserov , Vasily Tsvetkov , Vadim Nazarov

Edit distance is a fundamental measure of distance between strings and has been widely studied in computer science. While the problem of estimating edit distance has been studied extensively, the equally important question of actually…

数据结构与算法 · 计算机科学 2018-05-08 Moses Charikar , Ofir Geri , Michael P. Kim , William Kuszmaul

The edit distance is a way of quantifying how similar two strings are to one another by counting the minimum number of character insertions, deletions, and substitutions required to transform one string into the other. In this paper we…

数据结构与算法 · 计算机科学 2016-07-14 Diptarka Chakraborty , Elazar Goldenberg , Michal Koucký

The edit distance (a.k.a. the Levenshtein distance) between two strings is defined as the minimum number of insertions, deletions or substitutions of symbols needed to transform one string into another. The problem of computing the edit…

计算复杂性 · 计算机科学 2017-08-17 Arturs Backurs , Piotr Indyk

Motivated by a concrete problem and with the goal of understanding the sense in which the complexity of streaming algorithms is related to the complexity of formal languages, we investigate the problem Dyck(s) of checking matching…

数据结构与算法 · 计算机科学 2009-11-18 F. Magniez , C. Mathieu , A. Nayak

In the $k$-Edit Circular Pattern Matching ($k$-Edit CPM) problem, we are given a length-$n$ text $T$, a length-$m$ pattern $P$, and a positive integer threshold $k$, and we are to report all starting positions of the substrings of $T$ that…

数据结构与算法 · 计算机科学 2024-02-23 Panagiotis Charalampopoulos , Solon P. Pissis , Jakub Radoszewski , Wojciech Rytter , Tomasz Waleń , Wiktor Zuba

We consider the recognition problem of the Dyck Language generalized for multiple types of brackets. We provide an algorithm with quantum query complexity $O(\sqrt{n}(\log n)^{0.5k})$, where $n$ is the length of input and $k$ is the maximal…

量子物理 · 物理学 2021-06-18 Kamil Khadiev , Dmitry Kravchenko

We define and investigate the Fr\'{e}chet edit distance problem. Given two polygonal curves $\pi$ and $\sigma$ and a threshhold value $\delta>0$, we seek the minimum number of edits to $\sigma$ such that the Fr\'{e}chet distance between the…

计算几何 · 计算机科学 2024-03-20 Emily Fox , Amir Nayyeri , Jonathan James Perry , Benjamin Raichel

We consider the problem of determining if a sequence of parentheses is well parenthesized, with a depth of at most h. We denote this language as $Dyck_h$. We study the quantum query complexity of this problem for different h as function of…

量子物理 · 物理学 2020-02-20 Kamil Khadiev , Yixin Shen

In the decades-old Pattern Matching with Edits problem, given a length-$n$ string $T$ (the text), a length-$m$ string $P$ (the pattern), and a positive integer $k$ (the threshold), the task is to list the $k$-error occurrences of $P$ in…

数据结构与算法 · 计算机科学 2026-04-20 Tomasz Kociumaka , Jakob Nogler , Philip Wellnitz

Tree edit distance is a well-studied measure of dissimilarity between rooted trees with node labels. It can be computed in $O(n^3)$ time [Demaine, Mozes, Rossman, and Weimann, ICALP 2007], and fine-grained hardness results suggest that the…

数据结构与算法 · 计算机科学 2021-06-11 Shyan Akmal , Ce Jin

The problem of approximate string matching is important in many different areas such as computational biology, text processing and pattern recognition. A great effort has been made to design efficient algorithms addressing several variants…

数据结构与算法 · 计算机科学 2008-07-29 Dimitris Papamichail , Georgios Papamichail

The trace reconstruction problem studies the number of noisy samples needed to recover an unknown string $\boldsymbol{x}\in\{0,1\}^n$ with high probability, where the samples are independently obtained by passing $\boldsymbol{x}$ through a…

信息论 · 计算机科学 2021-04-15 Jin Sima , Jehoshua Bruck

In this work, we revisit the fundamental and well-studied problem of approximate pattern matching under edit distance. Given an integer $k$, a pattern $P$ of length $m$, and a text $T$ of length $n \ge m$, the task is to find substrings of…

数据结构与算法 · 计算机科学 2021-06-14 Tomasz Kociumaka , Ely Porat , Tatiana Starikovskaya

Given a context free language $\mathcal{L(G)}$ over alphabet $\Sigma$ and a string $s \in \Sigma^*$, {\em the language edit distance} problem seeks the minimum number of edits (insertions, deletions and substitutions) required to convert…

数据结构与算法 · 计算机科学 2024-10-25 Tomasz Kociumaka , Barna Saha

The text-to-pattern Hamming distances problem asks to compute the Hamming distances between a given pattern of length $m$ and all length-$m$ substrings of a given text of length $n\ge m$. We focus on the $k$-mismatch version of the problem,…

数据结构与算法 · 计算机科学 2022-03-30 Raphaël Clifford , Paweł Gawrychowski , Tomasz Kociumaka , Daniel P. Martin , Przemysław Uznański

Edit distance is a measure of similarity of two strings based on the minimum number of character insertions, deletions, and substitutions required to transform one string into the other. The edit distance can be computed exactly using a…

数据结构与算法 · 计算机科学 2021-02-17 Diptarka Chakraborty , Debarati Das , Elazar Goldenberg , Michal Koucky , Michael Saks

The normalized edit distance is one of the distances derived from the edit distance. It is useful in some applications because it takes into account the lengths of the two strings compared. The normalized edit distance is not defined in…

神经与进化计算 · 计算机科学 2013-12-09 Muhammad Marwan Muhammad Fuad