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https://issues.apache.org/jira/browse/SANDBOX-348?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13197177#comment-13197177
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Thomas Neidhart commented on SANDBOX-348:
-----------------------------------------

Hi,

actually I was also working on a patch for Boruvka's algorithm, but decided to 
stop it, as it is really hard to come up with a performant version of it given 
the current graph interface (and considering that there are already faster 
alternatives).

Using the current implementation, a non-trivial test case with ~10000 vertices 
results in the following execution times:

Boruvka took 174559 ms
Prim took 1100 ms
Kruskal took 199 ms

I do not want to spoil Marco's effort, but from my point of view, there is no 
reason to keep Boruvka's algorithm.
                
> Implement the Boruvka's algorithm
> ---------------------------------
>
>                 Key: SANDBOX-348
>                 URL: https://issues.apache.org/jira/browse/SANDBOX-348
>             Project: Commons Sandbox
>          Issue Type: Sub-task
>          Components: Graph
>            Reporter: Simone Tripodi
>            Assignee: Simone Tripodi
>         Attachments: SANDBOX-348-ConnectivityAlgo.patch, 
> SANDBOX-348_Boruvka_algorithm_implementation.patch
>
>
> The class {{org.apache.commons.graph.spanning.Boruvka}} contains an empty 
> implementation of 
> [Boruvka|http://en.wikipedia.org/wiki/Bor%C5%AFvka's_algorithm]'s algorithm, 
> that needs to be filled.

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