Guojun Zhou

14670 NW Cornell Rd., Apt 48 Tel: (503) 264-1700

Portland, OR 97229 Email: gzhou_us@yahoo.com

SUMMARY

• Expertise in speech recognition, text-to-speech (TTS), spoken dialog design, and Digital Signal Processing (DSP)

• Hands-on experience of DSP algorithm optimization for microprocessor Architecture

• Experienced with software engineering methodology
• Strong computer programming and debugging skills (C/C++, Windows, Unix, etc.)
• Significant strengths in project planning & execution, and communication skills
• Responsible for eight U.S. and international patents
• Three years’ experience with board-level circuit design and test

· Highly reliable, sensible, well-organized contributor in team environment

INDUSTRY EXPERIENCE

Sr. Software Engineer & Staff System Performance Architect

Intel Corporation, Hillsboro, OR (1999 to present)

• Major researcher of new DSP algorithms: improved the robustness of speech recognition. Results published at primary international conference. (see Publications List)
• Chief optimization architect: built Intel Integrated Performance Primitive (IPP) Library of DSP algorithms for Intel handheld microprocessor architecture. Provided framework for team use of optimization and benchmarking.

· Server performance architect: project performance for Intel future server architectures to provide guidance for architects and performance data for marketing and other executives.

• Major designer and developer: built two Intel spoken dialog systems. Demonstrations helped Intel gain publicity and influence the next generation human-machine interfaces.
• Invited by other Intel units to provide analysis of speech recognition algorithm for Intel streaming processor architecture. Results impacted the architecture’s roadmap.
• Invited speaker at international conferences. Promoted Intel products and research to academic and industry world to facilitate industry efficiency and influence standards.
• Sole technical liaison between Intel and two major U.S. universities (MIT and University of Colorado at Boulder). Acquired the most advanced research results for Intel.

Software Engineer (Intern) Nuance Communications, Menlo Park, CA (1998)

• Implemented decision-tree based clustering algorithm in C++, which resulted in a more reliable Nuance 6.0 speech recognition engine, a pioneer in telephony area.

Senior Hardware Engineer Thakral Technology Pte Ltd, Singapore (1996)

• Ensured VCD player product to reach market on time by leading efforts between design team in Singapore and manufacturing group in China.
• Significantly increased the sale of Panasonic and Sharp Video Compact Disk (VCD) players in China by modifying their hardware circuits.

Project Engineer Gateway Technologies Services Pte Ltd, Singapore (1994 to 1996)

• Initiated speech research and established the R&D environment for speech recognition.

· Completed project design and development in Singapore English recognition. Enabled the team to do further research and development work in speech processing.

Software Engineer Xinhe Electronics Inc., Beijing, China (1993 to 1994)

• Designed Chinese speech recognition algorithms. The new algorithms improved the recognition accuracy and enabled the technology to be used in telephony area.

Hardware Engineer Xinhe Electronic Audio Co., Guangdong, China (1988 to 1990)

• Designed electronic circuits for a model of Xinhe audio systems, which was awarded the Gold Medal at the 1991 Beijing International Consumer Products Fair.
• Ensured product quality and availability in market on time by leading standard compliance testing and efforts between design team and manufacturing facilities.

PATENT

• R&D work at Intel from 2000-2001 resulted in eight U.S. and international patents.

ACADEMIC EXPERIENCE

Adjunct Instructor Portland State University, Portland, OR (2001 to present)

• Teach a graduate course titled: “Human-Computer Voice Communications”.

Professional Research Assistant University of Colorado, Boulder, CO (1999)

• Formulated new adaptation techniques for speech recognition using DSP algorithms.
• Developed novel acoustical features for speaker verification.

Research Assistant Duke University, Durham, NC (1996 to 1998)

· Conducted research on speech signal processing and applied results to automatic speech recognition and stress classification for aircraft cockpit recordings. (see Publications List)

· Developed a telephony-based data collection station for speaker verification system.

· Investigated new speech enhancement algorithm using auditory masking concepts.

Research Assistant Tsinghua University, Beijing, China (1990 to 1993)

• Designed a speech recognition system using Hidden Markov Model (HMM) algorithm. (see Publications List)
• Completed a voice-automated PBX (Private Branch Exchange) operator system.
• Designed hardware interfaces between PC and PBX systems.

Research Assistant Southeast University, Nanjing, China (1987 to 1988)

· Designed hardware circuits based on DSP algorithms for a digital adaptive filter used for canceling interference in spread spectrum communication systems.

EDUCATION

• Ph.D. Electrical Engineering Duke University, Durham, North Carolina, U.S.A.
• M.S. Electrical Engineering Tsinghua University, Beijing, China
• B.S. Electrical Engineering Southeast University, Nanjing, China

COMPUTER & OTHER SKILLS

• Operating Systems: MS-Windows UNIX, LINUX, MS-DOS,
• Programming Languages: C/C++, Perl, C-Script, x86/ARM Assembly, Java, HTML
• Software: Matlab, AutoCAD, ESPS, xwaves, HTK, Tango
• Languages: fluent in Mandarin Chinese and English

PUBLICATIONS

• Y. Zhao and G. Zhou, “N-word-sequence Frequency Noise Mitigation for SLM Based on Binomial Distribution”, Submitted to ICSLP2002: 2002 Intl. Conf. On Spoken Language Processing, Denver, Sept. 2002.
• G. Zhou, M. Deisher, and S. Sharma, “Causal Analysis of Speech Recognition Failure in Adverse Environments”, Accepted to be published on IEEE ICASSP-02: 2002 Intl. Conf. On Acoust., Speech, and Signal Processing, Orlando, FL. May, 2002.

• G. Zhou, J.H.L. Hansen, and J.F. Kaiser, "Nonlinear Features for Classification and Assessment of Speech Under Stress", IEEE Transactions on Speech and Audio Processing, Vol. 9, No. 3, March 2001, pp. 201 - 216.
• J.H.L. Hansen, G. Zhou, and Ruhi Sarikaya, "Analysis of Acoustic Correlates of Speech Under Stress Part III: Applications to Speech Recognition, Speaker Identification, and Stress Classification", accepted to Journal Acoust. Society of America.
• G. Zhou, J.H.L. Hansen, and J.F. Kaiser, "Methods for Stress Classification: Nonlinear TEO and Linear Speech Based Features", Special Session of IEEE ICASSP-99: 1999 Intl. Conf. on Acoust., Speech, and Signal Processing, Phoenix, AZ, Vol. 4, pp. 2087 - 2090, March 1999.
• G. Zhou, J.H.L. Hansen, and J.F. Kaiser, "Linear and Nonlinear Speech Feature Analysis for Stress Classification", ICSLP-98: 1998 Intl. Conf. on Spoken Lang. Processing, Sydney, Australia, Vol. 2, pp. 883 - 886, Dec. 1998.
• G. Zhou, J.H.L. Hansen, and J.F. Kaiser, "A New Nonlinear Feature for Stress Classification", IEEE NORSIG-98, Denmark, pp. 89 - 92, June 1998.
• G. Zhou, J.H.L. Hansen, and J.F. Kaiser, "Classification of Speech Under Stress Based on Features Derived from the Nonlinear Teager Energy Operator", IEEE ICASSP-98: 1998 Intl. Conf. on Acoust., Speech, and Signal Processing, Seattle, pp. 549 - 552, May 1998.
• G. Zhou, L. Zeng, and C. Feng, "An Automatic Telephone Operator System Using Speech Recognition", IEEE ICCT-96: 1996 Intl. Conf. on Comm. Technology, Beijing, China, pp. 420 - 423, Oct. 1996.
• G. Zhou, L. Zeng, and C. Feng, "The Performance Comparison of Conventional and Improved HMMs in the Speaker Independent Speech Recognition of Isolated Words", ICCT-94: 1994 Intl. Conf. on Comm. Technology, Shanghai, China, pp. 1109 - 1112, Oct. 1994.