Warren D. Smith

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Warren Douglas Smith, an American physicist, mathematician, general theoretical scientist, and in 2005 founder of the Center of Range Voting. He received a double B.Sc. from Massachusetts Institute of Technology in physics and mathematics, and a Ph.D. at Princeton University in the field of applied mathematics on computational geometry motivated by Mesh generation, under Robert E. Tarjan and John H. Conway. He was affiliated with the AT&T Bell Laboratories, the NEC Research Institute, Princeton, New Jersey, where he wrote most of his papers during the 90s, and with DIMACS. His research interest covers the broad range of mathematics, physics, information theory, computer science and politics, amongst other things on algorithms, coding theory, cryptography, combinatorics, computational complexity, game tree search, game theory, computer chess, quantum mechanics, Bayesian statistics, range voting and direct democracy. With the advent of deep learning MCTS chess engines after the AlphaZero publications, Warren D. Smith contributed to Leela Chess Zero as well as Stockfish discussions in LCZero and FishCooking forums respectively.

=Test Suite for Chess Programs= In 1993, along with Kevin J. Lang, Warren D. Smith published and described a test suite for chess programs of about 5500 positions, optically scanned from chess books. The suite is arranged in a number of files, each file being thematic by difficulty, tactical, positional and others.

=BPIP-DFISA= Along with Eric B. Baum et al., Warren D. Smith worked and published on game tree search, in particular the BPIP-DFISA (Best play for imperfect players - Depth free independent staircase approximation) search control model , further generalized in 2004 by Yan Radovilsky and Solomon Eyal Shimony.

=Smith Notation= Warren D. Smith proposed the Smith notation as used in the Internet Chess Club chess server. The Smith notation encodes moves without any ambiguity using from-square, to-square, and to make it reversible, the captured piece if any - so it is as easy to go backwards as forwards while re-playing a game. =Selected Publications=

1989

 * Warren D. Smith (1989). Studies in Computational Geometry Motivated by Mesh Generation. Ph.D. thesis, Princeton University, advisors Robert E. Tarjan and John H. Conway

1990 ...

 * Andries E. Brouwer, James B. Shearer, Neil Sloane, Warren D. Smith (1990). A New Table of Constant Weight Codes. IEEE Transactions of Information Theory, Vol. 36
 * Steven Skiena, Warren D. Smith, Paul Lemke (1990). Reconstructing Sets from Interpoint Distances. Symposium on Computational Geometry
 * Warren D. Smith (1992). How To Find Steiner Minimal Trees in Euclidean d-Space. Algorithmica, Vol. 7, Nos. 2-6
 * Warren D. Smith (1992). Fundamental Physical Limits on Computation.
 * Warren D. Smith (1992). Fixed Point for Negamaxing Probability Distributions on Regular Trees. NEC Research Institute
 * Warren D. Smith (1992). Hash functions for Binary and Ternary Words. NEC Research Institute
 * Kevin J. Lang, Warren D. Smith (1993). A Test Suite for Chess Programs. ps, ChessTest2.tar.Z
 * Warren D. Smith (1993). Rating Systems for Gameplayers, and Learning.
 * Warren D. Smith, Kevin J. Lang (1994). Values of the merging function and algorithm design as a game. NEC Research Institute

1995 ...

 * Kevin J. Lang, Warren D. Smith (1995). A Test Suite for Chess Programs. ICCA Journal, Vol. 16, No. 3
 * Eric B. Baum, Warren D. Smith (1995). Best Play for Imperfect Players and Game Tree Search. Part I - theory, with pseudocode appendix by Charles Garrett
 * Warren D. Smith, Eric B. Baum, Charles Garrett, Rico Tudor (1995). Best Play for Imperfect Players and Game Tree Search. Part 2 - Experiments
 * Eric B. Baum, Warren D. Smith (1997). A Bayesian Approach to Relevance in Game Playing. Artificial Intelligence, Vol. 97
 * Warren D. Smith (1998). Taking the Fuzz Out of Fuzzy Logic. NEC Research Institute
 * Eric B. Baum, Warren D. Smith (1999). Propagating Distributions Up Directed Acyclic Graphs. Neural Computation, Vol. 11, No. 1

2000 ...

 * Warren D. Smith (2000). Range Voting. pdf
 * Paul Lemke, Steven Skiena, Warren D. Smith (2002). Reconstructing Sets from Interpoint Distances. DIMACS Technical Report: 2002-37
 * Warren D. Smith (2003). A new theorem in vector calculus. pdf
 * Warren D. Smith (2004). Direct Democracy. pdf
 * Warren D. Smith (2006). Church's thesis meets the N-body problem. Applied Mathematics and Computation, Vol. 178, No. 1, pdf preprint
 * Warren D. Smith (2007). 1. AES seems weak. 2. Linear time secure cryptography. pdf
 * Robby G. McKilliam, Warren D. Smith, I. Vaughan L. Clarkson (2009). Linear-time nearest point algorithms for Coxeter lattices. 8https://arxiv.org/abs/0903.0673 arXiv:0903.0673]

2010 ...

 * Richard P. Brent, Judy-anne H. Osborn, Warren D. Smith (2014). Lower bounds on maximal determinants of +-1 matrices via the probabilistic method. arXiv:1211.3248
 * Warren D. Smith (2014). Envy-Free allocations.
 * Richard P. Brent, Judy-anne H. Osborn, Warren D. Smith (2014). ounds on determinants of perturbed diagonal matrices. Linear Algebra and its Applications, Vol. 466, arXiv:1401.7084
 * Richard P. Brent, Judy-anne H. Osborn, Warren D. Smith (2016). Lower bounds on maximal determinants of binary matrices via the probabilistic method. arXiv:1402.6817
 * Richard P. Brent, Judy-anne H. Osborn, Warren D. Smith (2016). Probabilistic lower bounds on maximal determinants of binary matrices. Australasian Journal of Combinatorics, Vol. 66, arXiv:1501.06235

=Forum Posts=

2018

 * Re: Low draw rate in training games/data by Warren D. Smith, LCZero Forum, April 14, 2018
 * use multiple neural nets? by Warren D. Smith, LCZero Forum, December 25, 2018 » Leela Chess Zero

2019

 * "boosting" endgames in leela training? Simple change to learning process proposed: "forked" training games by Warren D. Smith, LCZero Forum, January 03, 2019 » Leela Chess Zero
 * Michael Larabel benches lc0 on various GPUs by Warren D. Smith, LCZero Forum, January 14, 2019 » Lc0, GPU
 * TCEC 15 superfinal by Warren D. Smith, FishCooking, May 15, 2019 » TCEC Season 15 Sufi
 * zugzwang suggestion by Warren D. Smith, FishCooking, September 15, 2019
 * high dimensional optimization by Warren D. Smith, FishCooking, December 27, 2019

2020

 * underpromoting is worth how many elo? by Warren D. Smith, FishCooking, March 08, 2020 » Promotions
 * tcec 17 superfinal by Warren D. Smith, LCZero Forum, April 08, 2020 » TCEC Season 17 Sufi
 * Tcec season 18 by Warren D. Smith, LCZero Forum, June 14, 2020 » TCEC Season 18
 * Tcec season 18 by Warren D. Smith, FishCooking, June 14, 2020
 * Re: Tcec season 18 by Warren D. Smith, FishCooking, June 28, 2020 » Pawn Center, TCEC Season 18 Sufi Game 63 10... c4


 * stockfishNNUE vs others (TCEC 18 bonus) by Warren D. Smith, FishCooking, July 14, 2020

2021

 * KataGo by Warren D. Smith, LCZero Forum, March 16, 2021
 * Re: Idea: use range (evalMin - evalMax) for position evaluation by Warren D. Smith, LCZero Forum, May 29, 2021

=External Links=
 * Warren D. Smith's blog
 * The Future of Computers, AI (artificial intelligence), etc -- aka, You're gonna die, sucker by Warren D. Smith, March 07, 2013


 * The Mathematics Genealogy Project - Warren Smith
 * RangeVoting.org - Center for Range Voting
 * Resume of Warren D. Smith

=References= Up one level