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Date: Tue, 19 Jul 2011 10:05:47 +0200
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Subject: Re: [graph & collections] Fibonacci Heap implementation
From: Simone Tripodi <simonetripodi@apache.org>
To: Commons Developers List <dev@commons.apache.org>
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Hi Stephen
it looks like indeed that [collections] development is in stand-by :(
Give me a voice if you need any help to release it, I'd would be more
than pleased to be helpful!
If you're interested on contributing on [graph], keeping an eye on
moving codebase to collections, you are welcome as well :)
Have a nice day, all the best!
Simo

http://people.apache.org/~simonetripodi/
http://www.99soft.org/


On Tue, Jul 19, 2011 at 12:53 AM, Stephen Colebourne
<scolebourne@joda.org> wrote:
> I think from the quiet reply its apparent that [collections] is pretty
> quiet these days. I think [collections] development must focus first
> on a release of a Java 5 version of what it has, rather than new code.
> Stephen
>
> On 14 July 2011 01:19, Simone Tripodi <simonetripodi@apache.org> wrote:
>> Hi all guys,
>> in order to improve graph algorithms performances, I started
>> implementing in [graph] an advanced priority queue called Fibonacci
>> Heap[1], based on detailed description of University of Science and
>> Technology of China's lessons[2].
>> You can find initial implementation on 'collections'[3] package in
>> [graph] (sandbox) - it is still a little bugged, indeed A* and
>> Dijkstra implementations are working with it while Prim & Kruskal, not
>> - but I think that it could be added in [collections] once completed
>> (I'm trying to implement it as java.util.Queue).
>> Is there anyone from [collections] interested on that topic that wants
>> to join efforts?
>> TIA, all the best!!!
>> Simo
>>
>> [1] http://en.wikipedia.org/wiki/Fibonacci_heap
>> [2] http://staff.ustc.edu.cn/~csli/graduate/algorithms/book6/chap21.htm
>> [3] https://svn.apache.org/repos/asf/commons/sandbox/graph/trunk/src/main/java/org/apache/commons/graph/collections
>>
>> http://people.apache.org/~simonetripodi/
>> http://www.99soft.org/
>>
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