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From Simone Tripodi <simonetrip...@apache.org>
Subject Re: [graph & collections] Fibonacci Heap implementation
Date Tue, 19 Jul 2011 13:15:21 GMT
Of course Matt, I would be much more than pleased to co-work with you!!!
What I need is just the new laptop arrives, ATM I'm using a temporary
computer where I cannot install my toys due to resources limitations.
I'm pretty sure in 2 more working days I'm in the conditions to give a help!
Many thanks, all the best!!!
Simo

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



On Tue, Jul 19, 2011 at 2:58 PM, Matt Benson <gudnabrsam@gmail.com> wrote:
> On Tue, Jul 19, 2011 at 3:05 AM, Simone Tripodi
> <simonetripodi@apache.org> wrote:
>> 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
>>
>
> Simo,
>  With no slight to others intended, I had been one of the only
> Commons devs still trying to put some time into [collections] to get
> it to a 4.0 release, and arguing against its mothballing.  I've got a
> large commit to make in a few hours, then I'll try to make time to dig
> through old emails to see what's outstanding.  If you could spare some
> of that inexhaustible energy of yours to get [collections] out the
> door, I'd really appreciate it!
>
> Matt
>
>> 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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>>>>
>>>
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>>>
>>
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>
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