Emeritus Professors

王奕翔 Wang, I-Hsiang

  • Professor, Department of Electrical Engineering, National Taiwan University
  • Ph.D. University of California, Berkeley, 2011
  • M.S. University of California, Berkeley, 2009
  • B.S. National Taiwan University, 2006
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Major Research Areas

Information Theory, Wireless Communications, Networked Information and Data Processing

Research Summary

Our group is focused on fundamental research on networked information and data, including communications, computation, data analysis, and machine learning. Areas of our major interest are information theory, learning theory, and high dimensional statistics. 

In particular, we are interested in the following subjects:

  • Learning from graphical and networked data
  • Distributed/decentralized information processing
  • Real-time/sequential decision making
  • Information theoretic privacy and security
  • Streaming

    I-Hsiang Wang received the B.Sc. degree in electrical engineering from National Taiwan University, Taiwan, in 2006. He received a Ph.D. degree in electrical engineering and computer sciences from the University of California at Berkeley, USA, in 2011. From 2011 to 2013, he was a postdoctoral researcher at École Polytechnique Fédérale de Lausanne, Switzerland. Since 2013, he has been at the Department of Electrical Engineering in National Taiwan University, where he is now a full professor. His research interests include network information theory, networked data analysis, and statistical learning. He was a finalist of the Best Student Paper Award of IEEE International Symposium on Information Theory, 2011. He received the 2017 IEEE Information Theory Society Taipei Chapter and IEEE Communications Society Taipei/Tainan Chapters Best Paper Award for Young Scholars. He held the Irving T. Ho Outstanding Young Chair Professorship in the College of Electrical Engineering and Computer Sciences, National Taiwan University, from 2021 to 2022. He won the National Taiwan University Distinguished Teaching Award (top 1% of the university teaching staff, awarded for 5 years) in 2017, the NTU EECS Academic Contribution Award in 2021, and the NSTC Project for Excellent Junior Research Investigators from 2021 to 2024 and from 2024  to 2028. He also serves as an Associate Editor for the IEEE Transactions on Information Theory.

Journal articles & book chapters Conference & proceeding papers Books Patents Other publication
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Journal articles & book chapters

1. C.-F. Li and I.-H. Wang, “A Unified Study on Sequentiality in Universal Classification With Empirically Observed Statistics” , IEEE Transactions on Information Theory , Vol. 71 , 1546-1569, Mar. 2025

2. T.-Y. Liu and I.-H. Wang, “Robust Privatization with Multiple Tasks and the Optimal Privacy-Utility Tradeoff” , IEEE Transactions on Information Theory , Vol. 70 , 8164-8179, Nov. 2024

3. P.-W. Su, Y.-C. Huang, S.-C. Lin, I.-H. Wang, and C.-C. Wang, “Random Linear Streaming Codes in the Finite Memory Length and Decoding Deadline Regime — Part I: Exact Analysis” , IEEE Transactions on Information Theory , Vol. vol, 68, no. 9 , pp. 6356-6387, Sep. 2022

4. I.-H. Wang, Y.-C. Huang, and S.-C. Lin, “Universal Feedback Gain for Modulo-Sum Computation over the Erasure MAC” , IEEE Transactions on Information Theory , Vol. vol. 65, no. 12 , pp. 2365-2383, Apr. 2022

5. S.-C. Lin, I.-H. Wang, and A. Vahid, “Capacity of Broadcast Packet Erasure Channels With Single-User Delayed CSI” , IEEE Transactions on Information Theory , Vol. vol. 67, no. 10 , pp. 6283-6295, Oct. 2021

6. A. Vahid, S.-C. Lin, and I.-H. Wang, “Erasure Broadcast Channels With Intermittent Feedback” , IEEE Transactions on Communications , Vol. vol. 69, no. 11 , pp. 7363-7375, Nov. 2021

7. A. Vahid, S.-C. Lin, I.-H. Wang, and Y.-C. Lai, “Content Delivery Over Broadcast Erasure Channels With Distributed Random Cache” , IEEE Journal on Selected Areas in Information Theory , Vol. vol. 2, no. 4 , pp. 1191-1205, Dec. 2021

8. W.-N. Chen and I.-H. Wang,, “Anonymous Heterogeneous Distributed Detection: Optimal Decision Rules, Error Exponents, and the Price of Anonymity” , IEEE Transactions on Information Theory , Vol. vol. 65, no. 11 , pp. 7390-7406, Nov. 2019

9. I Chien, C.-Y. Lin, and I.-H. Wang, “On the Minimax Misclassification Ratio of Hypergraph Community Detection” , IEEE Transactions on Information Theory , Vol. vol. 65, no. 12 , pp. 8095-8118, Dec. 2019

10. S.-Y. Yeh and I.-H. Wang, “Degrees of Freedom of the Bursty MIMO X Channel without Feedback” , IEEE Transactions on Information Theory , Vol. vol. 64, no. 4 , pp. 2298-2320, Apr. 2018

11. S. Kim, I.-H. Wang, and C. Suh, “A Relay Can Increase Degrees of Freedom in Bursty Interference Networks” , IEEE Transactions on Information Theory , Vol. vol. 64, no. 6 , pp. 4581-4593, Jun. 2018

12. S.-C. Lin and I.-H. Wang, “Gaussian Broadcast Channels with Intermittent Connectivity and Hybrid State Information at the Transmitter” , IEEE Transactions on Information Theory , Vol. vol. 64, no. 9 , pp. 6362-6383, Sep. 2018

13. S. Mishra, I.-H. Wang, and S. Diggavi, “Harnessing Bursty Interference in Multicarrier Systems with Output Feedback” , IEEE Transactions on Information Theory , Vol. vol. 63, no. 7 , pp. 4430-4452, Jul. 2017

14. C. Carakus, I.-H. Wang, and S. Diggavi, “Gaussian Interference Channel with Intermittent Feedback” , IEEE Transactions on Information Theory , Vol. vol. 61, no. 9 , pp. 4663-4699, Sep. 2015

15. A. Sengupta, I.-H. Wang, and C. Fragouli, “Cooperative Relaying at Finite SNR – Role of Quantize-Map-and-Forward” , IEEE Transactions on Wireless Communications , Vol. vol. 13, no. 9 , pp. 4857-4870, Sep. 2014

16. V. Nagpal, I.-H. Wang, M. Jorgovanovic, D. Tse, and B. Nikolic, “Coding and System Design for Quantize-Map-and-Forward Relaying” , IEEE Journal on Selected Areas in Communications , Vol. vol. 31, no. 8 , pp. 1423-1435-, Aug. 2013

17. I.-H. Wang, “Approximate Capacity of the Dirty Multiple-Access Channel with Partial State Information at Encoders” , IEEE Transactions on Information Theory , Vol. vol. 58, no. 5 , pp. 2781-2787-, May 2012

18. I.-H. Wang and D. N. C. Tse, “Interference Mitigation through Limited Transmitter Cooperation” , IEEE Transactions on Information Theory , Vol. vol. 57, no. 5 , pp. 2941-2965-, May 2011

19. I.-H. Wang and D. N. C. Tse, “Interference Mitigation through Limited Receiver Cooperation” , IEEE Transactions on Information Theory , Vol. vol. 57, no. 5 , pp. 2913-2940-, May 2011

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Conference & proceeding papers:

1. C.-F. Li and I.-H. Wang, “On the Error Exponent Benefit of Sequentiality in Universal Binary Classification” , 2024 International Zurich Seminar on Information and Communication , Zurich, Switzerland , Mar. 2024

2. C.-Y. Hsu and I.-H. Wang, “On the Optimal Tradeoffs among Error Exponents in Active Sequential Multiple Hypothesis Testing” , 2024 IEEE International Symposium on Information Theory (ISIT) , Athens, Greece , Jul. 2024

3. C.-F. Li and I.-H. Wang, “A Unified Study on Sequentiality in Universal Classification with Empirically Observed Statistics” , 2024 IEEE International Symposium on Information Theory (ISIT) , Athens, Greece , Jul. 2024

4. P.-W. Su, Y.-C. Huang, S.-C. Lin, I.-H. Wang, and C.-C. Wang, “Detailed Asymptotics of the Delay-Reliability Tradeoff of Random Linear Streaming Codes” , 2023 IEEE International Symposium on Information Theory (ISIT) , Taipei, Taiwan , Jun. 2023

5. Y.-M. Liao and I.-H. Wang, “On the Benefit of Single-User Feedback for Secret Communication over Broadcast Erasure Channels” , 2023 IEEE International Symposium on Information Theory (ISIT) , Taipei, Taiwan , Jun. 2023

6. P.-W. Su, Y.-C. Huang, S.-C. Lin, I.-H. Wang, and C.-C. Wang, “Sequentially Mixing Randomly Arriving Packets Improves Channel Dispersion Over Block-Based Designs” , 2022 IEEE International Symposium on Information Theory (ISIT) , Jun. 2022

7. C.-Y. Hou and I.-H. Wang, “Fundamental Limits of Personalized Federated Linear Regression with Data Heterogeneity” , 2022 IEEE International Symposium on Information Theory (ISIT) , Jun. 2022

8. C.-Y. Hsu, C.-F. Li, and I.-H. Wang, “On Universal Sequential Classification from Sequentially Observed Empirical Statistics” , 2022 IEEE Information Theory Workshop (ITW) , Mumbai, India , Nov. 2022

9. Y.-C. Huang and I.-H. Wang, “Social Learning is Almost as Good as Centralized Detection with Slight Global Knowledge” , 2020 IEEE Information Theory Workshop (ITW) , Riva del Garda, Italy , Apr. 2021

10. Y.-H. Li and I.-H. Wang, “Combinatorial Quantitative Group Testing with Adversarially Perturbed Measurements” , 2020 IEEE Information Theory Workshop (ITW) , Riva del Garda, Italy , Apr. 2021

11. T.-Y. Liu and I.-H. Wang, “Privacy-Utility Tradeoff with Nonspecific Tasks: Robust Privatization and Minimum Leakage” , 2020 IEEE Information Theory Workshop (ITW) , Riva del Garda, Italy , Apr. 2021

12. S.-W. Lan and I.-H. Wang, “Heterogeneous Sequential Hypothesis Testing with Active Source Selection under Budget Constraints” , 2021 IEEE International Symposium on Information Theory (ISIT) , Melbourne, Australia , Jul. 2021

13. P.-W. Su, Y.-C. Huang, S.-C. Lin, I.-H. Wang, and C.-C. Wang, “Random Linear Streaming Codes in the Finite Memory Length and Decoding Deadline Regime” , 2021 IEEE International Symposium on Information Theory (ISIT) , Melbourne, Australia , Jul. 2021

14. S.-C. Lin, C.-C. Wang, I.-H. Wang, Y.-C. Huang, and Y.-C. Lai, “On finite-length analysis and channel dispersion for broadcast packet erasure channels with feedback” , 2021 IEEE International Symposium on Information Theory (ISIT) , Melbourne, Australia , Jul. 2021

15. C.-H. Hsiao and I.-H. Wang, “Joint Clustering and Ranking from Heterogeneous Pairwise Comparisons” , 2021 IEEE International Symposium on Information Theory (ISIT) , Melbourne, Australia , Jul. 2021

16. S.-C. Lin, Y.-C. Lai, Y.-C. Huang, C.-C. Wang, and I.-H. Wang, “Optimal finite-length linear codes and the corresponding channel dispersion for broadcast packet erasure channels with feedback” , 2021 IEEE Information Theory Workshop (ITW) , Kanazawa, Japan , Oct. 2021

17. S.-C. Lin, A. Vahid, and I.-H. Wang, “Capacity of Erasure Broadcast Channels with Single-User Delayed CSI and Common Messages” , GLOBECOM 2020 - 2020 IEEE Global Communications Conference , Taipei, Taiwan , Dec. 2020

18. P.-W. Su, Y.-C. Huang, S.-C. Lin, I.-H. Wang, and C.-C. Wang, “Error Rate Analysis for Random Linear Streaming Codes in the Finite Memory Length Regime” , 2020 IEEE International Symposium on Information Theory (ISIT) , Los Angeles, CA, USA , Jun. 2020

19. H.-W. Hsu and I.-H. Wang, “On Binary Statistical Classification from Mismatched Empirically Observed Statistics” , 2020 IEEE International Symposium on Information Theory (ISIT) , Los Angeles, CA, USA , Jun. 2020

20. S.-C. Lin, I.-H. Wang, and A. Vahid, “No Feedback, No Problem: Capacity of Erasure Broadcast Channels with Single-User Delayed CSI” , 2019 IEEE International Symposium on Information Theory (ISIT) , Paris, France , Jul. 2019

21. W.-N. Chen and I.-H. Wang, “On the Price of Source Anonymity in Heterogeneous Parametric Point Estimation” , 2019 IEEE International Symposium on Information Theory (ISIT) , Paris, France , Jul. 2019

22. A. Vahid, I.-H. Wang, and S.-C. Lin, “Capacity Results for Erasure Broadcast Channels with Intermittent Feedback” , 2019 IEEE Information Theory Workshop (ITW) , Visby, Sweden , Aug. 2019

23. I Chien, C.-Y. Lin, and I.-H. Wang, “Community Detection in Hypergraphs: Optimal Statistical Limit and Efficient Algorithms” , International Conference on Artificial Intelligence and Statistics , Apr. 2018

24. T.-H. Fan and I.-H. Wang, “Rumor Source Detection: A Probabilistic Perspective” , IEEE International Conference on Acoustics, Speech, and Signal Processing , Apr. 2018

25. S.-Y. Yeh and I.-H. Wang, “Degrees of Freedom of the Bursty MIMO X Channel with Instantaneous Topological Information” , IEEE International Symposium on Information Theory , Jun. 2018

26. W.-N. Chen, H.-C. Chen, and I.-H. Wang, “On the Fundamental Limits of Heterogeneous Distributed Detection: Price of Anonymity” , IEEE International Symposium on Information Theory , Jun. 2018

27. W.-N. Chen and I.-H. Wang, “Partial Data Extraction via Noisy Histogram Queries: Information Theoretic Bounds” , IEEE International Symposium on Information Theory , Jun. 2017

28. I.-H. Wang, S.-C. Lin, and Y.-C. Huang, “Role of Feedback in Modulo-Sum Computation over Erasure Multiple-Access Channels” , IEEE International Symposium on Information Theory , Jun. 2017

29. C.-Y. Lin, I Chien, and I.-H. Wang, “On the Fundamental Statistical Limit of Community Detection in Random Hypergraphs” , IEEE International Symposium on Information Theory , Jun. 2017

30. C.-H. Liu, V. Tan, and I.-H. Wang, “Delay Scaling Laws of Random Wireless Networks: Impact of Blocklength” , IEEE Information Theory Workshop , Nov. 2017

31. Y.-S. Hsiao and I.-H. Wang, “On the Benefit of Delayed CSIT in Fading MIMO Broadcast Channel with CSIR Locality” , IEEE Information Theory Workshop , Nov. 2017

32. I.-H. Wang, Y.-C. Huang, and S.-C. Lin, “Role of Feedback in Modulo-Sum Computation over K-User Erasure Multiple-Access Channels” , IEEE Information Theory Workshop , Nov. 2017

33. S.-C. Lin and I.-H. Wang, “Single-User CSIT Can be Quite Useful for State-Dependent Broadcast Channels” , IEEE International Symposium on Information Theory , Jul. 2016

34. S.-Y. Yeh and I.-H. Wang, “Degrees of Freedom of the Bursty MIMO X Channel without Feedback” , IEEE International Symposium on Information Theory , Jul. 2016

35. I.-H. Wang, S.-L. Huang, K.-Y. Lee, and K.-C. Chen, “Data Extraction via Histogram and Arithmetic Mean Queries: Fundamental Limits and Algorithms” , IEEE International Symposium on Information Theory , Jul. 2016

36. I.-H. Wang, S.-L. Huang, and K.-Y. Lee, “Extracting Sparse Data via Histogram Queries” , Allerton Conference on Communications, Control, and Computing , Sep. 2016

37. S.-C. Lin and I.-H. Wang, “On Two-Pair Two-Way Relay Channel with an Intermittently Available Relay” , IEEE International Symposium on Information Theory , Jun. 2015

38. S. Kim, I.-H. Wang, and C. Suh, “A Relay Can Increase Degrees of Freedom in Bursty MIMO Interference Networks” , IEEE International Symposium on Information Theory , Jun. 2015

39. J. Sebastian, C. Karakus, S. Diggavi, and I.-H. Wang, “Rate Splitting is Approximately Optimal for Fading Gaussian Interference Channels” , Allerton Conference on Communications, Control, and Computing , Sep. 2015

40. sdaDAS, “asd” , S , S , S, Jul. 2014

41. S. Brahma, M. Duarte, A. Sengupta, I.-H. Wang, C. Fragouli, and S. N. Diggavi, “QUILT: A Decode/Quantize-Interleave-Transmit Approach to Cooperative Relaying” , IEEE INFOCOM , May 2014

42. S. Mishra, I.-H. Wang, and S. Diggavi, “Harnessing Bursty Interference in Multicarrier Systems with Feedback” , IEEE International Symposium on Information Theory , Jul. 2014

43. I.-H. Wang, C. Suh, S. Diggavi, and P. Viswanath, “Bursty Interference Channel with Feedback” , IEEE International Symposium on Information Theory , Istanbul, Turkey , Jul. 2013

44. C. Karakus, I.-H. Wang, and S. Diggavi, “Interference Channel with Intermittent Feedback” , IEEE International Symposium on Information Theory , Istanbul, Turkey , Jul. 2013

45. S. Mishra, I.-H. Wang, and S. Diggavi, “Opportunistic Interference Management for Multicarrier Systems” , IEEE International Symposium on Information Theory , Istanbul, Turkey , Jul. 2013

46. J. Hachem, I.-H. Wang, C. Fragouli, and S. Diggavi, “Coding with Encoding Uncertainty” , IEEE International Symposium on Information Theory , Istanbul, Turkey , Jul. 2013

47. M. Jorgovanovic, I.-H. Wang, V. Nagpal, M. Weiner, D. Tse, and B. Nikolic, “Relay Scheduling and Interference Cancellation for Quantize-Map-and-Forward Cooperative Relaying” , IEEE International Symposium on Information Theory , Istanbul, Turkey , Jul. 2013

48. I.-H. Wang and S. Diggavi, “Interference Channels with Bursty Traffic and Delayed Feedback (Invited)” , IEEE International Workshop on Signal Processing Advances for Wireless Communications , Darmstadt, Germany , Jun. 2013

49. C. Karakus, I.-H. Wang, and S. Diggavi, “An Achievable Rate Region for Gaussian Interference Channel with Intermittent Feedback” , Allerton Conference on Communications, Control, and Computing , Oct. 2013

50. I.-H. Wang and C. Suh, “Feedback Increases the Degrees of Freedom of Two Unicast Gaussian Networks” , Allerton Conference on Communications, Control, and Computing , Monticello, IL, USA , Oct. 2012

51. A. Sengupta, I.-H. Wang, and C. Fragouli, “Optimizing Quantize-Map-and-Forward in Slow Fading Relay Networks (Invited)” , Allerton Conference on Communications, Control, and Computing , Monticello, IL, USA , Oct. 2012

52. A. Sengupta, I.-H. Wang, and C. Fragouli, “Optimizing Quantize-Map-and-Forward Relaying for Gaussian Diamond Networks” , IEEE Information Theory Workshop , Lausanne, Switzerland , Sep. 2012

53. I.-H. Wang and S. Diggavi, “On Degrees of Freedom of Layered Two Unicast Networks with Delayed CSIT” , IEEE International Symposium on Information Theory , Cambridge, MA, USA , Jul. 2012

54. I.-H. Wang, “On Two Unicast Wireless Networks with Destination-to-Source Feedback” , IEEE International Symposium on Information Theory , Cambridge, MA, USA , Jul. 2012

55. C. Suh, I.-H. Wang, and D. Tse, “Two-way Interference Channels” , IEEE International Symposium on Information Theory , Cambridge, MA, USA , Jul. 2012

56. I.-H. Wang, S. U. Kamath, and D. N. C. Tse, “Two Unicast Information Flows Over Linear Deterministic Networks” , IEEE International Symposium on Information Theory , St. Petersburg, Russia , Aug. 2011

57. A. Lapidoth and I.-H. Wang, “Communicating Remote Gaussian Sources Over Gaussian Multiple Access Channels (Student Paper Award Finalist)” , IEEE International Symposium on Information Theory , St. Petersburg, Russia , Aug. 2011

58. V. Nagpal, I.-H. Wang, M. Jorgovanovic, D. Tse, and B. Nikolic, “Quantize-Map-and-Forward Relaying: Coding and System Design” , Allerton Conference on Communications, Control, and Computing , Monticello, IL, USA , Sep. 2010

59. I.-H. Wang and D. N. C. Tse, “Interference Mitigation through Limited Transmitter Cooperation” , IEEE International Symposium on Information Theory , Austin, TX, USA , Jun. 2010

60. I.-H. Wang and D. N. C. Tse, “Interference Mitigation through Limited Receiver Cooperation: Symmetric Case” , IEEE Information Theory Workshop , Taormina, Italy , Oct. 2009

61. I.-H. Wang and D. N. C. Tse, “Gaussian Interference Channels with Multiple Receive Antennas: Capacity and Generalized Degrees of Freedom” , Allerton Conference on Communications, Control, and Computing , Monticello, IL, USA , Sep. 2008

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Books:

1. sdfgfsdg, “tttttsdgsdfg” , sdfgsdf ,

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Patents:

1. T. Luo, J. Montojo, and I.-H. Wang, “Efficiently identifying system waveform in uplink transmission” , US Patent 10033500, Jul. 2018

2. T. Luo, J. Montojo, and I.-H. Wang, “Efficiently identifying system waveform in uplink transmission” , US Patent 8913672, Dec. 2014

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Other publication:

1. ASDFAS, “AS2A” , ASDFAS, Oct. 2014

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