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- Path: sparky!uunet!gatech!usenet.ins.cwru.edu!agate!dog.ee.lbl.gov!ucbvax!ucdavis!toadflax!lim
- From: lim@toadflax.cs.ucdavis.edu (Lloyd Lim)
- Newsgroups: rec.games.chess
- Subject: Re: Bratko-Kopec Test
- Message-ID: <20586@ucdavis.ucdavis.edu>
- Date: 24 Dec 92 06:21:13 GMT
- References: <1992Dec22.130726.6299@ghost.dsi.unimi.it>
- Sender: usenet@ucdavis.ucdavis.edu
- Organization: Department of Computer Science, University of California, Davis
- Lines: 40
-
- In article <1992Dec22.130726.6299@ghost.dsi.unimi.it> broglia@ghost.dsi.unimi.it (marco broglia) writes:
- >
- >Is there anybody that has the opportunity to read
- > "Advances in Computer Chess 3", 1982
- >and that would help me ? Okay, go to page 57-72 and check if the article is
- > "The Bratko-Kopec Experiment: A Comparison of Human and
- > Computer Performance"
- >written by Bratko and Kopec.
-
- Yes, you have the correct reference. However, there is a newer article
- in Advances in Computer Chess 4, with more results. There might even be
- newer articles that I missed.
-
- >If so, can he send me a brief explanation about the method to compute
- >the score (for how many minutes the machines think ?) ?
- >In which way Bratko and Kopec determine the second (third, fourth)
- >choice (after how much time ?) ?
-
- Page 62:
- "Subjects were given a total of two minutes for each position to select
- their preferred move(s) and to write down up to four choices in order
- of preference on the answer sheet provided."
-
- "...if the "preferred move" selected by a subject for a given test
- position is the correct move, one full point credit is given; if the
- subject's second choice is the correct move, then 1/2 point credit is
- given; third choice correct give 1/3 point credit, and fourth choice
- gives 1/4."
-
- They don't say how they get a program's second, third, and fourth
- choices. Presumably there is some way to look at how a program
- ranks the alternative moves.
-
- Hope this helps.
-
- +++
- Lloyd Lim Internet: lim@cs.ucdavis.edu
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