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Subject: Re: detecting clones

Author: Roman Hartmann

Date: 12:00:25 01/28/06

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On January 28, 2006 at 14:56:48, Sebastian Leibnitz wrote:

>On January 28, 2006 at 13:44:35, Roman Hartmann wrote:
>
>>On January 28, 2006 at 07:59:03, Uri Blass wrote:
>>
>>>I wonder if there can be some program to detect clones based on the exe files.
>>>
>>>The program does not have to be 100% correct and even detecting part of the
>>>clones is good.
>>>
>>>I remember that there is already a program that help to detect clones based on
>>>source codes and by reverse engineering it should be possible to translate exe
>>>files to source code so I think that the natural step is to have a program that
>>>detects clones automatically for people like Leo by comparing the sources of the
>>>programs that he is using.
>>>
>>>If there is going to be a program that can detect all the clones that were
>>>detected until today and does not have false clone detection by comparing
>>>different free source code programs that are not clones then it is going to be
>>>good.
>>>
>>>Uri
>>
>>Hi Uri,
>>I doubt this can be done automatically.
>>Looking fo similar PV's of certain positions (including illegal positions) and
>>compare evals of different positions is probably the simpler approach. AFAIK
>>this is already (sucessfully) done by some people.
>>
>>Roman
>
>
>I disagree.

Did you note the word 'automatically'? I believe that you are able to identify a
clone by looking at the decompiled code but I doubt that a program can do this
easily.

Roman

>I am fairly certain that I could identify a (e.g.) fruit clone by looking at the
>decompiler output of fruit and the clone and identifying *too* similiar looking
>procedures.
>No more than 2-3 hours should do the job.
>
>Actually, as both Toga and Fruit are open-source, I'll do so and post the
>results (to showcase what I mean).
>Look out for a post on that topic...
>(As exams are coming up, I'll most likely postpone it till wednesday, but it'll
>come)
>
>
>Sebastian



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