Wei Yu

PhD-Electrical and Computer Engineering
Expected Graduation: May 2006
Resume

Research Interests

My research interests mainly focus on security and cooperation enforcement in wireless networks, including system vulnerability analysis, secure protocol design, network monitoring and malicious behavior detection, trust modeling and evaluation, and key management. Meanwhile, I am also working on multimedia processing, wireless communications, and bioinformatics.

Publications

  • Fangting Sun, David Fernandez-Baca, Wei Yu, "Inverse Parametric Sequence Alignment", Journal of Algorithms 53 (2004) 36-54. PDF
  • Wei Yu, Fangting Sun, and Jason Fritts, "Efficient Rate Control for JPEG 2000", accepted by IEEE Transactions on Circuits and Systems for Video Technology. PDF
  • Wei Yu and K. J. Ray Liu, "Attack-Resistant Cooperation Stimulation in Autonomous Ad Hoc Networks", IEEE JSAC special issue on autonomic communication systems, to appear in December 2005. PDF
  • Yan Sun, Wei Yu, Zhu Han and K. J. Ray Liu, "Information Theoretic Framework of Trust Modelling and Evaluation for Ad Hoc Networks", IEEE JSAC special issue on security in wireless ad hoc networks, to appear in 2nd Quarter, 2006. PDF
  • Wei Yu, Yan Sun and K. J. Ray Liu, "Optimizing Rekeying Cost for Contributory Group Key Agreement Schemes", IEEE Transactions on Dependable and Secure Computing, to appear. PDF
  • Wei Yu and K. J. Ray Liu, "Game Theoretic Analysis of Cooperation and Security in Autonomous Ad Hoc Networks", under revision, IEEE Transactions on Mobile Computing.
  • Wei Yu and K. J. Ray Liu, "Secure Cooperative Ad Hoc Networks against Insider Attacks", submitted to IEEE/ACM Transactions on Networking. PDF
  • Zhu Ji, Wei Yu, and K. J. Ray Liu, "Optimal Dynamic Pricing for Self-organized Mobile Ad Hoc Networks", submitted to IEEE/ACM Transactions on Networking.
  • Wei Yu, Zhu Ji, and K. J. Ray Liu, "Secure Cooperative Ad Hoc Networks against Insider Attacks: Strategies and Game Theoretic Analysis", submitted to ICDCS 2006.
  • Zhu Ji, Wei Yu, and K. J. Ray Liu, "Belief-Based Cooperation Enforcement for Autonomous Mobile Ad Hoc Networks with Noise and Imperfect Observation", submitted to ICDCS 2006.
  • Zhu Ji, Wei Yu, and K. J. Ray Liu, "An Optimal Dynamic Pricing Framework for Autonomous Mobile Ad Hoc Networks", IEEE INFOCOM 2006, to appear. PDF
  • Yan Sun, Zhu Han, Wei Yu, and K. J. Ray Liu, "A Trust Evaluation Framework in Distributed Networks: Vulnerability Analysis and Defense against Attacks", IEEE INFOCOM 2006, to appear. PDF
  • Wei Yu, Yan Sun, and K. J. Ray Liu, "Minimization of Rekeying Cost for Contributory Group Communications", GLOBECOM 2005 (This paper has been invited for submission to International Journal of Security and Networks (IJSN) Special Issue on Computer Network Security). PDF
  • Yan Sun, Wei Yu, Zhu Han, and K. J. Ray Liu, "Trust Modeling and Evaluation in Ad Hoc Networks", GLOBECOM 2005 (This paper has been invited for submission to International Journal of Security and Networks Special Issue on Computer Network Security). PDF
  • Wei Yu, and K. J. Ray Liu, "Secure Cooperative Mobile Ad Hoc Networks Against Injecting Traffic Attacks", IEEE SECON 2005. PDF
  • Wei Yu, and K. J. Ray Liu, "Stimulating Cooperation and Defending Against Attacks in Self-Organized Mobile Ad Hoc Networks", IEEE SECON 2005. PDF
  • Wei Yu, Yan Sun, and K. J. Ray Liu, "HADOF: Defense Against Routing Disruptions in Mobile Ad Hoc Networks", IEEE INFOCOM 2005. PDF
  • Wei Yu, Zafer Sahinoglu, and Anthony Vetro, "Energy Effcient JPEG 2000 Image Transmission over Wireless Sensor Networks", IEEE GLOBECOM 2004. PDF
  • Wei Yu, Zoltan Safar, and K. J. Ray Liu, "Scalable Cross-Layer Rate Allocation for Image Transmission over Heterogeneous Wireless Networks", IEEE ICASSP 2004. PDF
  • Wei Yu, "Integrated Rate Control and Entropy Coding for JPEG 2000", Data Compression Conference, Snowbird, UT, Mar. 2004. PDF
  • Wei Yu, Fangting Sun, and Jason Fritts, "An Efficient Packetization Algorithm in JPEG2000", IEEE International Conference on Image Processing, Rochester, NY, Sep. 2002. PDF
  • Wei Yu, Fangting Sun, and Jason Fritts, "A Hierarchical Image Segmentation Algorithm", IEEE International Conference on Multimedia and Expo, Lausanne, Switzerland, Aug. 2002. PDF
  • Qi Zhang, Sally Goldman, Wei Yu, and Jason Fritts, "Content-Based Image Retrieval Using Multiple-Instance Learning", The Nineteenth International Conference on Machine Learning, Sydney, July 2002. PDF
  • Wei Yu, Ruibiao Qiu, and Jason Fritts, "Advantages of Motion-JPEG2000 in Video Processing", SPIE Photonics West, Electronic Imaging 2002, San Jose, CA, Jan. 2002. PDF


    Internships

  • May 2003 - Aug 2003: Summer Intern, Mitsubishi Electric Research Laboratories
    Design an energy efficient image transmission system for wireless networks (one patent filed).
  • May 2002 - Aug 2002: Summer Intern, Fujitsu Laboratories of America College Park
    Design a wireless geolocation system for E911 using AOA techniques (having built a real testbed).

    Contact Information

    Adress: Kim Building 2238,
    University of Maryland,
    College Park, MD 20742
    Tel no.: 301-405-3342, 301-520-2498
    email: weiyu@umd.edu
    Link: http://www.enee.umd.edu/~weiyu/