Shun Watanabe's Homepage

 
Shun Watanabe

Associate Professor
Department of Computer and Information Sciences
Tokyo University of Agriculture and Technology, Japan

Email: shunwata [at] cc.tuat.ac.jp

Phone: +81-42-388-7896


Biography:

Shun Watanabe received B.E., M.E., and Ph.D. degree from Tokyo Institute of Technology
in 2005, 2007, and 2009, respectively. During April 2009 to February 2015, he was an assistant professor of
the Department of Information Science and Intelligence Systems at the University of Tokushima. 
During April 2013 to March 2015, he was a visiting assistant professor of the Institute for Systems Research
at the University of Maryland, College Park. Since February 2015, he has been a tenure track associate professor
of the Department of Computer and Information Sciences at Tokyo University of Agriculture and Technology.
He is a member of IEEE and IEICE.


Research Interests:


Information Theory, Network Information Theory, Information Theoretic Security, Quantum Information Theory, Quantum Cryptography



Publications:

Preprints:


  1. "Source Compression with a Quantum Helper," (with Min-Hsiu Hsieh).
  2. "Secret Key Agreement: General Capacity and Second-Order Asymptotics," (with Masahito Hayashi and Himanshu Tyagi).
  3. "A Dichotomy of Functions in Distributed Coding: An Information Spectral Approach," (with Shigeaki Kuzuoka).
  4. "Converses for Secret Key Agreement and Secure Computing," (with Himanshu Tyagi).
  5. "Information Geometry Approach to Parameter Estimation in Markov Chains," (with Masahito Hayashi).
  6. "Finite-length Analysis on Tail probability and Simple Hypothesis Testing for Markov Chain," (with Masahito Hayashi).
  7. "A Unified Approach to Non-Asymptotic and Asymptotic Analyses of Information Processing on Markov Chains," (with Masahito Hayashi).

Journal Papaers:

  1. "An Information-Spectrum Approach to Weak Variable-Length Source Coding with Side-Information," accepted for publication in IEEE Transactions on Information Theory (with Shigeaki Kuzuoka).
  2. "Non-Asymtptic and Second Order Achievability Bounds for Coding with Side-Information," IEEE Transactions on Information Theory, vol. 61, no. 4, pp. 1574-1605, April 2015 (with Shigeaki Kuzuoka and Vincent Y. F. Tan).
  3. "The Optimal Use of Rate-Limited Randomness in Broadcast Channels with Confidential Messages," IEEE Transactions on Information Theory, vol. 61, no. 2, pp. 983-995, February 2015 (with Yasutada Oohama).
  4. "Cognitive Interference Channels with Confidential Messages under Randomness Constraint," IEEE Transactions on Information Theory, vol. 60, no. 12, pp. 7698-7707, December 2014 (with Yasutada Oohama).
  5. "Universal Wyner-Ziv Coding for Distortion Constrained General Side-Information," IEEE Transactions on Information Theory, vol. 60, no. 12, pp. 7568-7583, December 2014 (with Shigeaki Kuzuoka).
  6. "Optimal Axis Compensation in Quantum Key Distribution Protocols over Unital Channels," Theoretical Computer Science:, Elsevier, vol. 560, part 1, Theoretical Aspect of Quantum Cryptography--Celebrating 30 years of BB84, pp. 91-106, December 2014 (with Ryutaroh Matsumoto and Tomohiko Uyematsu).
  7. "The Rate-Distortion Function for Product of Two Sources with Side-Information at Decoders," IEEE Transactions on Information Theory, vol. 59, no. 9, pp. 5678-5691, September 2013.
  8. "Private and Quantum Capacities of More Capable and Less Noisy Quantum Channels," Physical Review A, vol. 85, no. 1, p. 012326, January 2012.
  9. "Secret Key Agreement from Vector Gaussian Sources by Rate Limited Public Communication," IEEE Transactions on Information Forensics and Security, vol. 6, no. 3, pp. 541-550, September 2011 (with Yasutada Oohama).
  10. "Secret Key Agreement from Correlated Gaussian Sources by Rate Limited Public Communication," IEICE Transactions on Fundamentals, vol. E93, no. 11, pp. 1976-1983, November 2010 (with Yasutada Oohama).
  11. "Strongly Secure Privacy Amplification Cannot Be Obtained by Encoder of Slepian-Wolf Code," IEICE Transactions on Fundamentals, vol. E93, no. 9, pp. 1650-1659, September 2010 (with Ryutaroh Matsumoto and Tomohiko Uyematsu).
  12. "Narrow basis angle doubles secret key in the BB84 protocol," Journal of Physics A: Mathematical and Theoretical, vol. 43, no. 14, p. 145302, April 2010 (with Ryutaroh Matsumoto).
  13. "Universal Source Coding over Generalized Complementary Delivery Networks," IEEE Transactions on Information Theory, vol. 55, no. 3, pp. 1360-1373, March 2009 (with Akisato Kimura, Tomohiko Uyematsu, and Shigeaki Kuzuoka).
  14. "Secret Key Agreement by Soft-Decsion of Signals in Gaussian Maurer's Model," IEICE Transactions on Fundamentals, vol. E92, no. 2, pp. 525-534, February 2009 (with Masashi Naito, Ryutaroh Matsumoto, and Tomohiko Uyematsu).
  15. "Tomography Increases Key Rates of Quantum Key Distribution Protocols," Physical Review A, vol. 78, no. 4, p. 042316, October 2008 (with Ryutaroh Matsumoto and Tomohiko Uyematsu).
  16. "Key Rate Available from Mismatched Measurements in the BB84 Protocol and the Uncertainty Principle," IEICE Transactions on Fundamentals., vol. E91, no. 10, pp. 2870-2873, October 2008 (with Ryutaroh Matsumoto).
  17. "Key Rate of Quantum Key Distribution with Hashed Two-Way Classical Communication," Physical Review A, vol. 76, no. 3, p. 032312, September 2007 (with Ryutaroh Matsumoto, Tomohiko Uyematsu, and Yasuhito Kawano).
  18. "Noise Tolerance of the BB84 Protocol with Random Privacy Amplification," International Journal of Quantum Information, vol. 4, no. 6, pp. 935-946, December 2006 (with Ryutaroh Matsumoto and Tomohiko Uyematsu).
  19. "Improvement of Stabilizer-Based Entanglement Distillation Protocols by Encoding Operators," Journal of Physics A: Mathematical and General, vol. 39, no. 16, pp. 4273-4290, April 2006 (with Ryutaroh Matsumoto and Tomohiko Uyematsu).

Conference and Workshop Papers:

  1. "Strong Converse for a Degraded Wiretap Channel via Active Hypothesis Testing," Allerton 2014 (with Masahito Hayashi and Himanshu Tyagi).
  2. "Strong Converse and Second-Order Asymptotics of Channel Resolvability," ISIT 2014, Honolulu, HI (extended version), (with Masahito Hayashi). 
  3. "Secret key agreement: general capacity and second-order asymptotics," ISIT 2014, Honolulu, HI (with Masahito Hayashi and Himanshu Tyagi).
  4. "Information Geometry Approach to Parameter Estimation in Markov Chains," ISIT 2014, Honolulu, HI (with Masahito Hayashi).
  5. "An Information-Spectrum Approach to Weak Variable-Length Slepian-Wolf Coding," ISIT 2014, Honolulu, HI (with Shigeaki Kuzuoka).
  6. "Moderate Deviations for Joint Source-Channel Coding of Systems With Markovian Memory," ISIT 2014, Honolulu, HI (with Vincent Y. F. Tan and Masahito Hayashi).
  7. "A Bound for Multiparty Secret Key Agreement and Implications for A Problem of Secure Computing," EUROCRYPT 2014, Copenhagen, Denmark (with Himanshu Tyagi).
  8. "Non-Asymptotic Bounds on Fixed Length Source Coding for Markov Chains," Allerton 2013. (slide), (with Masahito Hayashi)
  9. "Secret Key Capacity For Multipleaccess Channel With Public Feedback," Allerton 2013 (with Himanshu Tyagi).
  10. "Universal Wyner-Ziv Coding for Distortion Constrained General Side-Information," ISIT 2013, Istanbul, Turkey. (slide), (with Shigeaki Kuzuoka).
  11. "Non-Asymtptic and Second Order Achievability Bounds for Source Coding with Side-Information," ISIT 2013, Istanbul, Turkey.  (slide), (with Shigeaki Kuzuoka and Vincent Y. F. Tan)
  12. "Non-Asymptotic Analysis of Privacy Amplification via Renyi Entropy and Inf-Spectral Entropy," ISIT 2013, Istanbul, Turkey. (slide, arXiv), (with Masahito Hayashi).
  13. "Cognitive Interference Channels with Confidential Messages under Randomness Constraint," ISITA 2012, Honolulu, HI. (slide), (with Yasutada Oohama).
  14. "More Capable and Less Noisy Quantum Channels," Japan-Singapore Workshop on Multi-user Networks, 2012. (slide).
  15. "Expurgation Exponent of Leaked Information in Privacy Amplification for Binary Sources," ITW 2012, Lausanne, Switzerland. (slide, poster).
  16. "Privacy Amplification Theorem for Bounded Storage Eavesdropper," ITW 2012, Lausanne, Switzerland (with Yasutada Oohama).
  17. "Broadcast Channels with Confidential Messages by Randomness Constrained Stochastic Encoder," ISIT 2012, Cambridge, MA. (slide), (with Yasutada Oohama).
  18. "The Rate-Distortion Function for Product of Two Sources with Side-Information at Decoders," ISIT 2011, Saint Petersburg, Russia. (slide).

Ph.D. Thesis:

    A Study of Channel Estimation and Postprocessing in Quantum Key Distribution Protocols
 



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