ACM稱(chēng)，Valiant在機器學(xué)習，計算復雜度理論，并行和分布式計算等領(lǐng)域都有突出貢獻，推動(dòng)了人工智能技術(shù)的發(fā)展。在Valiant之前，有很多人在研究機器學(xué)習，也取得了不俗的貢獻，但一個(gè)基礎問(wèn)題始終沒(méi)有攻破——如何處理錯誤。當時(shí)的機器學(xué)習能執行陽(yáng)性結果和陰性結果，對超過(guò)樣本局限之外的情況無(wú)法自我發(fā)揮，系統無(wú)法處理不可避免的錯誤。Valiant在1984年提出了概率近似正確模型，以一種弱學(xué)習方式訓練機器學(xué)習，輸入的信息越充分它的預測也會(huì )愈加精確，它允許未來(lái)的錯誤發(fā)生，比如我們所熟悉的垃圾郵件過(guò)濾器。在復雜度理論方面，Valiant提出了復雜度#P完全概念。
Leslie Valiant
T. Jefferson Coolidge Professor of Computer Science and Applied Mathematics,
School of Engineering and Applied Sciences, Harvard University.
Contact Info:
Email: valiant seas harvard edu
Tel: 617-495-5817
Fax: 617-496-6404
Office: 351, Maxwell Dworkin,
33, Oxford Street,
Cambridge, MA 02138.
Office Hours:
Thursdays 1.30-2.30 pm.
Recent Publications:
71. Circuits of the Mind, Oxford University Press, (1994, 2000).
72. Robust logics, Artificial Intelligence Journal, 117 (2000) 231-253.
73. A neuroidal architecture for cognitive computation, J. Assoc. Computing Machinery, 47:5 (2000) 854-882.
74. Quantum circuits that can be simulated classically in polynomial time, SIAM J. on Computing, 31:4 (2002) 1229-1254.
75. Expressiveness of matchgates, Theoretical Computer Science, 289:1 (2002) 457-471 (and 299 (2003) 795.)
76. Three problems in computer science, J. Assoc. Computing Machinery, 50:1 (2003) 96-99.
77. Holographic algorithms (extended abstract), Proc. 45th Annual IEEE Symposium on Foundations of Computer Science, Oct 17-19, Rome, Italy, (2004). IEEE Press, 306-315.
78. Memorization and association on a realistic neural model, Neural Computation, 17:3 (2005) 527-555.
79. Holographic circuits, Proc. 32nd International Colloquium on Automata, Languages and Programming, July 11-15, Lisbon, Portugal, LNCS, Vol. 3580, (2005), Springer-Verlag, 1-15.
80. Completeness for parity problems, Proc. 11th International Computing and Combinatorics Conference, Aug 16-19, Kunming, China, LNCS, Vol. 3959, (2005), Springer-Verlag, 1-9.
81. A quantitative theory of neural computation, Biological Cybernetics, 95:3 (2006) 205-211.
82. Knowledge infusion, Proc. 21st National Conference on Artificial Intelligence, AAAI06, Jul 16-20, Boston, MA, AAAI Press, (2006), 1546-1551.
83. Accidental algorithms, Proc. 47th Annual IEEE Symposium on Foundations of Computer Science, Oct 22 -24, Berkeley, CA, IEEE Press, (2006), 509-517.
84. Holographic algorithms, SIAM J. on Computing, 37:5 (2008) 1565-1594. (Earlier version: Electronic Colloquium on Computational Complexity, Report TR05-099, (2005).)
85. A first experimental demonstration of massive knowledge infusion, (with Loizos Michael), Proc. 11th International Conference on Principles of Knowledge Representation and Reasoning, Sept. 16-20, 2008, Sydney, Australia, 378-389.
86. Knowledge infusion: In pursuit of robustness in artificial intelligence, Proc 28th Conference on Foundations of Software Technology and Theoretical Computer Science, Dec 9-11, 2008, Bangalore, India, Indian Association for Research in Computing Science, 415-422.
87. Evolvability, J. Assoc. Computing Machinery, 56:1 (2009) 3:1 - 3:21. (Earlier version: Proc. 32nd International Symposium on Mathematical Foundations of Computer Science, Aug. 26-31, ?esky Krumlov, Czech Republic, LNCS, Vol 4708, (2007) Springer-Verlag, 22-43.)
88. Experience-induced neural circuits that achieve high capacity, (with Vitaly Feldman), Neural Computation, 21:10 (2009) 2715-2754.
89. A bridging model for multi-core computing, Journal of Computer and System Sciences, 77:1 (2011) 154-166 . (Earlier version: Proc. 16th Annual European Symposium on Algorithms, Sept. 15-17, 2008, Karlsruhe, Germany, LNCS, Vol 5193, (2008), Springer-Verlag, 13-28.)
90. Some observations on holographic algorithms, Proc. 9th Latin American Theoretical Informatics Symposium, LATIN 2010: Oaxaca, Mexico, April 19-23, 2010, LNCS, Vol 6034 Springer-Verlag (2010), 577-590.
91. Evolution with drifting targets, (with Varun Kanade and Jennifer Wortman Vaughan), Proc, 23rd Annual Conference on Learning Theory, (COLT 2010).
This profile was referenced from: http://people.seas.harvard.edu/~valiant/
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