Re: Plagiary, CGF view

[Sam Sloan <sloan@xxxxxxxxxxxxx>]

You need to explain this claim of plagiary in more detail. Otherwise,
nobody will take you seriously.

If the offending programs simply emulate yours and think the same way yours
does, that is not plagiary and is perfectly legal.

If they copied your code directly, that is clearly plagiary.

For example, in chess, when computer chess started, there were many
different ideas of how a chess program should work. Most early programs
evaluated positions on the basis of such factors as development, space,
time, pawn structure, king safety and material.

We now know that these evaluation functions do not work and programs using
them are not successful. Every strong chess program now uses a full breadth
search based on the minimax principle.

If a new programmer takes advantage of this knowledge and writes a new
program based on these principles, he is not giulty of plaigary, even
though he is taking advantage of the work of others.

So, we need to know exactly what your claim is and how it constitutes
plagiary.

Sam Sloan

At 10:52 AM 3/17/99 +0800, Chen Zhixing wrote:
>>
>>This plagerism was also not fair to the other competitors.  It's as
>>if Prof Chen had been allowed to enter Handtalk 3 times, and took
>>the top 3 places.  The second best program comes in 4th instead.
>>
>                --David Fotland
>
>   I am afraid that no one will be glad to participate tournaments if the
>problem of plagiarism is not solved.  There will be the 3rd, the forth,...
>plagiary-Handtalk to enter the tournaments, thus the tournaments will become
>a competition mainly between plariary-Handtalks.
>   The plagiarism also injured the profit of the go programmers very much.
>David Fotland is one of the greatest victim.  His Many Faces was sold as
>AI-Igo 6 in Japan by a company named ASCII.  After the 3rd FOST Cup in which
>Many Faces lost to Hit (a plagiary from Handtalk), ASCII rejected Many Faces
>and began to sell Hit as AI-Igo 7.  Since then David Fotland lost all income
>from selling Many Faces in Japan.
>   Now the plagiary-Handtalk is filling the market.  There are many names:
>Medusa(Hit or Hamlet) in Korea, Silver Igo, Family Igo(a variety of Silver
>Igo) and AI-Igo 7 (Hit) in Japan, and a new version of Silver Igo named
>Ginsei Igo is to be sold in Japan.  The advertisement claims that the price
>of Family Igo is only 3,300 yen, and its strength reaches those go-software
>with price of 12,800 yen!!! How can it be tolerated?!
>
>Chen Zhixing
>
>
>