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Izhak Shafran
Associate Professor
The Center for Spoken Language Understanding
Oregon Health & Science University


I have moved to Google Inc


  • Speech and language processing: algorithms for extracting information from spoken language, including large vocabulary speech recognition, acoustic modeling, spoken term detection, and prosody modeling.
  • Machine learning: learning finite state machines for speech recognition, and developing frameworks for recognizing speaker characteristics (e.g., emotion and dialect) from limited amounts of spoken utterances.
  • Example applications: Tools for assessing cognitive function and social engagement in older adults, screening patients for Parkinson's disease, modeling social behavior in macaques, recognizing speech in noisy and everyday settings, and exploiting prosody to improve downstream processing (e.g., parsing and disfluency detection)


    CS 552/652: Automatic Speech Recognition
    CS 548/648: Probabilitistic Graphical Models
    CS 506/606: Special Topics: Large Vocabulary Recognition
    CS 506/606: Special Topics: Problem Solving with Large Clusters
    CS 559/659: Machine Learning
    CS 547/647: Statistical Pattern Recognition
    CS 506/606: Probabilistic Graphical Models

    Current Students & Postdocs

  • Maider Lehr, Graduate Student
  • Meysam Asgari, Graduate Student
  • Alireza Bayesteh, Graduate Student
  • Golnar Sheikhshabbafghi, Graduate Student
  • Shiran Dudy, Graduate Student
  • Ranjani Ramakrishnan, Graduate Student
  • Guillaume Thiebault, Post-doctoral Fellow

  • Past Students & Postdocs
  • Anthony Stark, Post-doctoral Fellow (now at Microsoft)
  • Christian Monson, Post-doctoral Fellow (now at Amazon)
  • Open Positions

  • Postdoctoral Fellow: We are seeking outstanding graduates to fill a postdoctoral fellowship. Graduates of Computer Science or Electrical Engineering with background in machine learning or applications of it in speech and language processing or computer vision are encouraged to apply. For more information, see here.
  • Research Computing System Administration
  • PublicationsSpeech and Language   Medicine and Health   Miscellaneous

    The articles presented below are meant for timely dissemination of scholarly and technical work and may not be reposted without the explicit permission of the copyright holder. Copyright and all rights therein are retained by authors or by other copyright holders.

    Speech and Language

    Medicine and Health


    • Naturalistic and Objective Measures of Social Engagement via Automated Spoken Language Processing Izhak Shafran, Anthony Stark, Nicole Larimer, Maider Lehr, Nora Mattek, Jon Yeagers, Katherine Wild, and Jeffrey Kaye, Abstract at the GSA Annual Meeting, 2011.
    • Parsing and Spoken Structural Event Detection, Mary Harper, Bonnie J. Dorr, John Hale, Brian Roark, Izhak Shafran, Matthew Lease, Yang Liu, Matthew Snover, Lisa Yung, Anna Krasnyanskaya, and Robin Stewart, Final Report of 2005 Johns Hopkins Summer Workshop, 2005.
    • The JHU 2004 Chinese-English and Arabic-English MT Evaluation Systems, Shankar Kumar, Yonggang Deng, Charles Schafer, Woosung Kim, Paola Virga, Nizar Habash, David Smith, Filip Jurcicek, Bill Byrne, Sanjeev Khudanpur, Izhak Shafran, and David Yarowsky, NIST Machine Translation 2004 Evaluation. June 22, 2004.
    • AT&T 1xRT CTS STT System, Enrico Bocchieri, Andrej Ljolje, Michael Riley, Brian Roark, Murat Saraclar and Izhak Shafran, DARPA Rich Transcription Workshop, unpublished presentation, Boston, Spring 2003.
    • Coherent de-dispersion system for GMRT, Izhak Shafran, Yashwant Gupta and C. R. Subramanya, Proc. 6th Asia Pacific Meet on Astronomy, Int'l Astronomical Union, 1993.
    • Feeds for GMRT, G. Sankarasubramanian, M. R. Shankaraman, Izhak Shafran, et. al., Proc. 6th Asia Pacific Meet on Astronomy, Int'l Astronomical Union, 1993.
    • Signal Processing for Analyzing Pulsars, Izhak Shafran, M.Tech. Thesis, Electrical Engineering, Indian Institute of Technology, Bombay (Mumbai), 1996.
    • Checkout recent discoveries using Giant Meterwave Radio Telescope (GMRT)!

    Some useful links:

    Contact Me
    3181 SW Sam Jackson Park Rd, GH40
    Portland, OR 97239-3098
    Phone: 503-346-3761
    FAX: 503-349-3765
    zakshafran at gmail nospam com

    Stolen Computer
    A MacBook Pro with the serial number W80411Z6ATP was stolen from me on Dec 24th 2010 in Barecelona, Spain. If anyone finds it, please contact me.