电子工程系

Department of Electronic Engineering 

Jia LIU, Ph.D. Professor

Department of Electronic Engineering, Tsinghua University, Beijing 100084, China

Tel: +86-10-62781705

Fax: +86-10-62770317

E-mail: liuj@tsinghua.edu.cn

 

Education background

Ph.D., Electronic Engineering, April 1990

Tsinghua University, Beijing, China

Master of Science, Electronic Engineering, July 1986

Tsinghua University, Beijing, China

Bachelor of Engineering, Electrical Engineering, June 1983

Tsinghua University, Beijing, China

 

Experience

01/2002 – Present Professor, Department of Electronic Engineering, TSINGHUA University, Beijing, China

06/1995 – 12/2001 Associate Professor, Department of Electronic Engineering, TSINGHUA University, Beijing, China

04/1994 – 05/1995 Assistant Professor, Department of Electronic Engineering, TSINGHUA University, Beijing, China

04/1990-03/1994 Research Assistant, Remote Sensing Satellite Ground Station, Chinese Academy of Science.

01/1992-02/1994 Royal Fellow, Department of Engineering, Cambridge University, UK.

 

Concurrent Academic

Graduate

Human-Machine Speech Communication (in Spring)

Statistical Learning Method and Its Applications in Signal and Information Processing (in Fall)

 

Areas of Research Interests/ Research Projects

Speech Recognition: large vocabulary speech recognition, keyword spotting, embedded speech recognition, ASIC for speech recognition.

Speaker Recognition: speaker recognition in complex channel, ASIC for voice texture recognition.

Language Identification: Language Identification in complex channel.

Microphone Array Signal Processing: acoustic positioning, speech enhancement.

Internet Speech and Audio Information Retrieval and Data Mining: Semantics-and-notion-based text search, content-based speech/audio retrieval.

E-Learning: Interactive language learning (helps Chinese to learn foreign language and foreigners to learn Chinese

 

Research Status

[1] National Science Funding, China, “Research on Cross-Language Content-Based Spoken Language Retrieval”

[2] National Science Funding, China, “Research in Interactive Spoken Dialogs to Support Secondary Language Learning of English by Native Putonghua and Cantonese Speakers”

[3] National Science Funding, China, “Speech separation、content analysis and understanding in multi-speaker multi-party dialogues”

[4] Hi-tech Research and Development Program of China (National 863 Project, “Humanizing Interactive Speech Technology for Serving Robot”

[5] Hi-tech Research and Development Program of China (National 863 Project, “Research on Automation Screening of Community People Depression Based on Speech Recognition Technology”

[6] Hi-tech Research and Development Program of China (National 863 Project, “Multi-lingual Speech and Language Basic Resource Database Development”

[7] Cooperate Project, “Intelligent Speech signal Processing”

[8] Tsinghua-CISCO Joint Research Program, “MASON: Metropolitan Area Sensing and Operating Networks”, Jan. 2009-Dec. 2011, Principle Investigator

 

Honors And Awards

Personal and Group Award of Science and Technology in Olympic Games 2008, Beijing China, 2008

Third Grades Award of Science and Technology Progress of the Chinese People's Liberation Army 2003

 

Academic Achievement

[1] Chaolei Li, Jia Liu, Shanhong Xia., English sentence stress detection system based on HMM framework. Applied Mathematics and Computation, 2007, 185 (2): 759-768

[2] W.-Q. Zhang, J. Liu. An equalized heteroscedastic linear discriminant analysis algorithm. IEEE Signal Processing Letters, 2008, 15(12): 585-588.

[3] Yanmin Qian, Jia Liu, Michael T. Johnson. Efficient Embedded Speech Recognition for Very Large Vocabulary Mandarin Car-Navigation Systemsi. IEEE Transactions on Consumer Electronics, 2009, 55(3): 1496-1500.

[4] Zhong S, Shan Y X, He L, Liu J. Research on Intersession Variability Compensation for MLLR-SVM Speaker Recognition. IEICE Transaction on Fundamentals of Electronics, Communications and Computer Sciences, 2009, Vol.E92-A(2009), No.8: 1892-1897.

[5] S. Meng, J. Shao, P. Yu, J. Liu, F. Seide. Addressing the Out-Of-Vocabulary Problem for Large-Scale Chinese Spoken Term Detection. Interspeech'2008, Brisbane, 2008.

[6] S. Meng, P. Yu, J. Liu, F. Seide. Fusing Multiple Systems Into A Compact Lattice Index for Chinese Spoken Term Detection. ICASSP'2008, Las Vegas, 2008.

[7] W.-Q. Zhang, L. He, T. Hou, J. Liu. Fractional Fourier transform based auditory feature for language identification. IEEE Asia-Pacific Conference on Circuits and Systems (APCCAS 2008), Macao, China, Nov 30-Dec 3, 2008, pp. 209-212.

[8] Yan Deng, Jia Liu. Feature selection based on mutual information for language recognition. 2nd International Congress on Image and Signal Processing, Oct. 2009, Tianjin, China. (EI)

[9] Yuxiang Shan, Jia Liu. Robust Speaker Recognition in Cross-channel Condition. 2nd International Congress on Image and Signal Processing, Oct. 2009, Tianjin, China. (EI)

[10] Hong Cao, Jia Liu. A Combined De-correlation Method for Acoustic Feedback Cancellation in Hearing Aids. 2009 WRI World Congress on Computer Science and Information Engineering. Mar. 2009, 220-224