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

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In the $k$-mismatch problem we are given a pattern of length $n$ and a text and must find all locations where the Hamming distance between the pattern and the text is at most $k$. A series of recent breakthroughs have resulted in an…

数据结构与算法 · 计算机科学 2021-06-22 Paweł Gawrychowski , Tatiana Starikovskaya

We define a notion called leftmost separator of size at most $k$. A leftmost separator of size $k$ is a minimal separator $S$ that separates two given sets of vertices $X$ and $Y$ such that we "cannot move $S$ more towards $X$" such that…

数据结构与算法 · 计算机科学 2021-11-05 Mahdi Belbasi , Martin Fürer

We consider the problem of matching a metric space $(X,d_X)$ of size $k$ with a subspace of a metric space $(Y,d_Y)$ of size $n \geq k$, assuming that these two spaces have constant doubling dimension $\delta$. More precisely, given an…

数据结构与算法 · 计算机科学 2020-12-22 Corentin Allair , Antoine Vigneron

As DNA data storage moves closer to practical deployment, minimizing sequencing coverage depth is essential to reduce both operational costs and retrieval latency. This paper addresses the recently studied Random Access Problem, which…

信息论 · 计算机科学 2026-01-13 Chen Wang , Eitan Yaakobi

We study the computational complexity of the graph modification problems Threshold Editing and Chain Editing, adding and deleting as few edges as possible to transform the input into a threshold (or chain) graph. In this article, we show…

数据结构与算法 · 计算机科学 2015-05-05 Pål Grønås Drange , Markus Sortland Dregi , Daniel Lokshtanov , Blair D. Sullivan

A fundamental algorithmic problem at the heart of static analysis is Dyck reachability. The input is a graph where the edges are labeled with different types of opening and closing parentheses, and the reachability information is computed…

编程语言 · 计算机科学 2019-10-02 Krishnendu Chatterjee , Bhavya Choudhary , Andreas Pavlogiannis

Most of the literature on spanners focuses on building the graph from scratch. This paper instead focuses on adding edges to improve an existing graph. A major open problem in this field is: given a graph embedded in a metric space, and a…

计算几何 · 计算机科学 2022-12-20 Joachim Gudmundsson , Sampson Wong

In many applications, it is necessary to determine the string similarity. Edit distance[WF74] approach is a classic method to determine Field Similarity. A well known dynamic programming algorithm [GUS97] is used to calculate edit distance…

数据结构与算法 · 计算机科学 2007-05-23 Qi Xiao Yang , Sung Sam Yuan , Lu Chun , Li Zhao , Sun Peng

The diameter $k$-clustering problem is the problem of partitioning a finite subset of $\mathbb{R}^d$ into $k$ subsets called clusters such that the maximum diameter of the clusters is minimized. One early clustering algorithm that computes…

数据结构与算法 · 计算机科学 2014-03-10 Marcel R. Ackermann , Johannes Blömer , Daniel Kuntze , Christian Sohler

We study the classical metric $k$-median clustering problem over a set of input rankings (i.e., permutations), which has myriad applications, from social-choice theory to web search and databases. A folklore algorithm provides a…

数据结构与算法 · 计算机科学 2026-02-23 Diptarka Chakraborty , Debarati Das , Robert Krauthgamer

We consider the problem of preprocessing two strings $S$ and $T$, of lengths $m$ and $n$, respectively, in order to be able to efficiently answer the following queries: Given positions $i,j$ in $S$ and positions $a,b$ in $T$, return the…

数据结构与算法 · 计算机科学 2021-03-08 Panagiotis Charalampopoulos , Paweł Gawrychowski , Shay Mozes , Oren Weimann

In a way similar to the string-to-string correction problem we address time series similarity in the light of a time-series-to-time-series-correction problem for which the similarity between two time series is measured as the minimum cost…

信息检索 · 计算机科学 2008-12-28 Pierre-François Marteau

We show that in the document exchange problem, where Alice holds $x \in \{0,1\}^n$ and Bob holds $y \in \{0,1\}^n$, Alice can send Bob a message of size $O(K(\log^2 K+\log n))$ bits such that Bob can recover $x$ using the message and his…

数据结构与算法 · 计算机科学 2016-07-15 Djamal Belazzougui , Qin Zhang

We show that the edit distance between two run-length encoded strings of compressed lengths $m$ and $n$ respectively, can be computed in $\mathcal{O}(mn\log(mn))$ time. This improves the previous record by a factor of…

数据结构与算法 · 计算机科学 2019-05-06 Raphaël Clifford , Paweł Gawrychowski , Tomasz Kociumaka , Daniel P. Martin , Przemysław Uznański

Several measures exist for string similarity, including notable ones like the edit distance and the indel distance. The former measures the count of insertions, deletions, and substitutions required to transform one string into another,…

数据结构与算法 · 计算机科学 2024-10-15 Sudatta Bhattacharya , Sanjana Dey , Elazar Goldenberg , Michal Koucký

We study the problem of edit similarity joins, where given a set of strings and a threshold value $K$, we want to output all pairs of strings whose edit distances are at most $K$. Edit similarity join is a fundamental problem in data…

数据库 · 计算机科学 2017-10-10 Haoyu Zhang , Qin Zhang

We consider the following model for sampling pairs of strings: $s_1$ is a uniformly random bitstring of length $n$, and $s_2$ is the bitstring arrived at by applying substitutions, insertions, and deletions to each bit of $s_1$ with some…

数据结构与算法 · 计算机科学 2020-07-08 Arun Ganesh , Aaron Sy

We introduce in this paper a novel strategy for efficiently approximating the Sinkhorn distance between two discrete measures. After identifying neglectable components of the dual solution of the regularized Sinkhorn problem, we propose to…

机器学习 · 统计学 2020-01-22 Mokhtar Z. Alaya , Maxime Bérar , Gilles Gasso , Alain Rakotomamonjy

The edit distance under the DCJ model can be computed in linear time for genomes with equal content or with Indels. But it becomes NP-Hard in the presence of duplications, a problem largely unsolved especially when Indels are considered. In…

数据结构与算法 · 计算机科学 2017-05-29 Zhaoming Yin , Jijun Tang , Stephen W. Schaeffer , David A. Bader

The discrete Fr\'echet distance is a popular measure for comparing polygonal curves. An important variant is the discrete Fr\'echet distance under translation, which enables detection of similar movement patterns in different spatial…

数据结构与算法 · 计算机科学 2021-10-13 Karl Bringmann , Marvin Künnemann , André Nusser