He presided over and participated in a number of national pre-research, national natural science foundation and 863 projects. His research interests involve speech recognition, large corpus speech synthesis, trainable speech synthesis and voiceprint recognition. 20 10-20 12 presided over the national natural science foundation project "research on the robustness of synthesized speech in voiceprint recognition", and on 20/0/2006-20 10 presided over the sub-project of 863 major project "key technology of multilingual speech synthesis and its product development".

Research achievements and patents: In the 2008 World Speaker Recognition Competition held by NIST, the leading research team won the first place in the world in one fell swoop, and this achievement was reported by Guangming Daily, Science Times, the website of the National Natural Science Foundation of China and other media 100. He has published more than forty research papers in influential journals and conferences at home and abroad. Wang Eryu, a doctoral student, won the Best Student Thesis Award in 2065 438+00 ISC SLP 2065 438+00, and Liu Quan, a graduate student, won the Best Student Thesis Award in NCMMSC20 13. The list of papers is as follows:

[1] Guo Wei, Long Yanhua, Dai, Application of N-gram Nearest Neighbor Algorithm in Speech Cryptography System, China Computer Science Press, 2002 .ICASSP 20 10, pp. 4438-444 1.

[2] Guo Wenwei, Long Yanhong, Li Yanjun, et al., Application of Ifly system in speaker recognition evaluation in 2008, Proc .2009 Taipei in 2009.

[3] Guo Wu, Dai, Wang Renhua, Speaker Confirmation Based on Unsupervised Score Normalization and Factor Analysis, Acta Electronica, 2009,4

Guo Wu, Dai, Wang Renhua, Simplified Channel Coefficient Estimation, Journal of Tsinghua University, 2008,48 (S.1), pp. 664-667.

Guo Wu, Dai, Wang Renhua, Feature Mapping Based on Principal Component Analysis, acta automatica sinica, 2008,34 (8), pp. 876-879.