Median String Problem with Unbounded Alphabets: Difference between revisions

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[[File:Median String Problem - Median String Problem with Unbounded Alphabets - Time.png|1000px]]
[[File:Median String Problem - Median String Problem with Unbounded Alphabets - Time.png|1000px]]
== Space Complexity Graph ==
[[File:Median String Problem - Median String Problem with Unbounded Alphabets - Space.png|1000px]]
== Time-Space Tradeoff ==
[[File:Median String Problem - Median String Problem with Unbounded Alphabets - Pareto Frontier.png|1000px]]


== References/Citation ==  
== References/Citation ==  


https://link.springer.com/content/pdf/10.1007/3-540-44888-8_23.pdf
https://link.springer.com/content/pdf/10.1007/3-540-44888-8_23.pdf

Latest revision as of 10:12, 28 April 2023

Description

Given an unbounded alphabet $\Sigma$, a set $W$ of strings over $\Sigma$, and the Levenshtein distance between strings, find a string over $\Sigma$ that minimizes the sum of distances to the strings of $W$.

Related Problems

Related: Median String Problem with Bounded Alphabets, Median String Problem with Binary Alphabets

Parameters

$n$: number of strings

Table of Algorithms

Name Year Time Space Approximation Factor Model Reference
Naive Solution 1965 {2}^$O(n)$ $O(n)$ Exact Deterministic

Time Complexity Graph

Median String Problem - Median String Problem with Unbounded Alphabets - Time.png

References/Citation

https://link.springer.com/content/pdf/10.1007/3-540-44888-8_23.pdf