Re: [Hutter Prize] Is the Hutter prize competition still taking place?

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James Bowery

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Feb 19, 2021, 2:55:27 PMFeb 19
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Yes. The competition is still underway.

On Fri, Feb 19, 2021 at 12:37 PM Austin Bryant <austin.b...@gmail.com> wrote:
I discovered the Hutter prize competition while researching and developing a lossless compression technique. 
...
Is the competition is still underway? 

Sebastian Nerger

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May 5, 2021, 11:14:33 AMMay 5
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Hello,
I'm not sure: is the time limit only for compressing.

Thank you

Matt Mahoney

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May 5, 2021, 11:26:22 AMMay 5
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100 hours to compress and 100 hours to decompress.

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Sebastian Nerger

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May 20, 2021, 2:34:12 PMMay 20
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Thank you Matt,

I hope my english is understandable. If I understand it correctly I only need to compress the file in 100 hours? Not 10 - OK. This seems not a problem, unlike than decompression.

But I am not(!) a math prof and in result of this I do the compression "in another way", but my PoC works.

So to optimize my code I have few questions:
- Can I use Java?
- Can you define / tell a minimum size, where I can stop the compression?
- How can I estimate my local performance against your test system? Is a file, standard compression (like gzip) and time on your system given for local run to calculate a ca.-factor for runtime?

Thank you
Bastie 

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Matt Mahoney

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May 20, 2021, 7:04:27 PMMay 20
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The rules permit C++, Python, and x86 assembler. Personally I would allow Java. For testing, you have 100 hours on a machine with a geekbench score of 500. I suggest measuring your hardware with it and adjust accordingly. The compression ratio should not depend on your hardware or any input arguments.

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