CLOP

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CLOP for Noisy Black-Box Parameter Optimization, a program used for parameter tuning, created by Rémi Coulom. The CLOP principle, which stands for Confident Local OPtimization [1], is an approach to local regression that overcomes problems with very noisy outputs and nonnegative Hessians [2] in a simple and efficient way. CLOP is suited to tune several parameters simultaneously, and requires polynomial time for each additional parameter to verify the tuned values, that is playing a lot of games [3].

See also#

• Match Statistics
• Cutechess-cli
• SPSA

Publications#

• Rémi Coulom (2011). CLOP: Confident Local Optimization for Noisy Black-Box Parameter Tuning. Advances in Computer Games 13, slides as pdf
• Rémi Coulom (2012). CLOP: Confident Local Optimization for Noisy Black-Box Parameter Tuning. Advances in Computer Games, LNCS, Vol. 7168, Springer

Forum Posts#

2011 …#

• CLOP for Noisy Black-Box Parameter Optimization by Rémi Coulom, CCC, September 01, 2011
• To Ilari : CLOP + cutechess-cli by Marco Costalba, CCC, October 09, 2011

2012

• Re: win rate bias and CLOP by Brian Sheppard, Computer-go Archives, January 03, 2012
• CLOP + cutechess cli by Engin Üstün, CCC, January 05, 2012 » Cutechess-cli
• EXchess v6.10 released by Daniel Homan, CCC, January 29, 2012 » EXchess
• CLOP on Stockfish by Gary, CCC, March 10, 2012 » Stockfish

2013

• CLOP and Stockfish by Joona Kiiski, FishCooking, March 31, 2013 » Stockfish
• CLOP tuning by Marco Costalba, FishCooking, May 19, 2013
• CLOP tests are active by Gary Linscott, FishCooking, July 03, 2013
• Question regarding CLOP and cutechess-cli by Jacob Børs Lind, CCC, August 05, 2013 » Cutechess-cli
• Clop and cutechess by Alcides Schulz, CCC, September 21, 2013
• CLOP tests are active (finally) by Gary Linscott, FishCooking, November 10, 2013
• CLOP overhead by Lucas Braesch, FishCooking, November 14, 2013

2014

• needed CLOP for cluster by Daniel Shawul, CCC, January 23, 2014
• Help with CLOP by Arjun Temurnikar, CCC, February 05, 2014
• Problem with CLOP and clop-cutechess-cli.py? (long post) by joster, FishCooking, May 10, 2014
• Goodbye CLOP, hello SPSA) by Gary Linscott, FishCooking, May 17, 2014
• Port of Coulom’s CLOP algorithm to Python by Kamyar, FishCooking, December 03, 2014

2015 …#

• Working with CLOP by Robert Pope, CCC, January 22, 2015
• CLOP: when to stop? by Erin Dame, CCC, November 07, 2016
• CLOP in cutechess-cli debug by Albert Silver, CCC, May 22, 2018 » Cutechess-cli
• New CLOP settings give Leela huge tactics boost by Albert Silver, CCC, June 04, 2018 » Leela Chess Zero

2020 …#

• Trying to CLOP again by Vivien Clauzon, CCC, January 19, 2020

External Links#

• CLOP: Confident Local Optimization for Noisy Black-Box Parameter Tuning
• cutechess-cly Python script fo CLOP
• Black box from Wikipedia
• Black box (disambiguation) from Wikipedia
• Les Paul - Black Box [4], YouTube Video

References#

1. ↑ CLOP: Confident Local Optimization for Noisy Black-Box Parameter Tuning
2. ↑ Second partial derivative test from Wikipedia
3. ↑ Re: How Do You Automatically Tune Your Evaluation Tables by Jon Dart, CCC, January 31, 2014
4. ↑ The Inventions - Les Paul

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