Median String Problem with Unbounded Alphabets (Median String Problem)
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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
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References/Citation
https://link-springer-com.ezproxy.canberra.edu.au/content/pdf/10.1007/3-540-44888-8_23.pdf