I am a second level professor and doctoral supervisor at Chongqing University. I graduated from the Department of Mathematics at Sichuan University in 1983 and studied in the Graduate School of Mathematical Statistics at the University of Science and Technology of China from 1986 to 1987. My supervisor was Professor Wang Songgui. In 1992, I obtained a Master's degree in Basic Mathematics from Yunnan University, and my supervisor was Professor Wang Xueren. In 1992, I was promoted to associate professor directly from a teaching assistant, and in 1995, I was promoted to professor. In 2003, I obtained a Ph.D. in Computer Science from Chongqing University, and my supervisor was Professor Cheng Daijie, Now he is a member of the National Organizing Committee of the Undergraduate Mathematical Modeling Contest (2008-), director of the Chongqing Organizing Committee, a former member of the Statistics Teaching Steering Committee of the Ministry of Education (2008-2018), a judge of the mathematics discipline review team of the the State Natural Science Award in 2013, a review expert of the statistics discipline review team of the 7th Excellent Achievement Award of the Ministry of Education, and a vice chairman of the China Field Statistics Research Association (1997-20052009-2017), Executive Director of the Chinese Society of Industry and Applied Mathematics (2008-2016), Supervisor of the Supervisory Board of the Chinese Society of Industry and Applied Mathematics (2019-), Chairman of the Chongqing Society of Industry and Applied Mathematics (2006-2018, 2022-), Director of the Chinese Society of Education Statistics, former Dean of the School of Mathematics and Science at Chongqing University (2002-2010), Dean of the School of Mathematics and Statistics at Chongqing University (2010-2011), and Vice Chairman of the Chongqing Science and Technology Youth Federation (2003-2008), Director of the Chongqing Division of the College Student Mathematical Modeling Competition (2006-2008, 2022-), Vice Chairman of the Chongqing Mathematical Society (2003-2007), Vice President of the Chongqing Statistical Society (1997-2010), Executive Director of the China Statistical Society, Director of the China Mathematical Society, and Member of the National College Student Mathematical Competition Committee. In 2002, he was a senior visiting scholar at the University of Hong Kong, in 2005 he was a visiting professor at NotreDame University in the United States, and in 2006 he was a senior visiting scholar at the National University of Singapore. He also visited universities such as Princeton University, the University of Chicago, Northwestern University, the University of Minnesota, the National University of Australia, the University of Queensland, Tamkang University in Taiwan, and Fu Jen University.

Mainly engaged in research on linear models, model selection, financial statistics, statistical calculations, statistical diagnosis, semi parametric models, sparse principal component analysis, support vector selection, text analysis, index tracking, ultra-high dimensional analysis, etc., I have led and undertaken more than 30 scientific research projects funded by the National Natural Science Foundation of China, the Doctoral Program Fund of the Ministry of Education, the Ministry of Transportation, the National Bureau of Statistics, the National Immigration Administration, and the Chongqing Municipal Science and Technology Commission, I have participated in research projects funded by the Science Foundation of the Third World Academy of Sciences in the United States. In 1988, the generalized Kontorovich inequality for trace quotient was established, which successfully solved the bound problem of mean square error ratio efficiency in estimation error theory. In 1994, a comparison of linear estimates under the Pitman criterion was established. In 1996, regularization methods were used to explain the numerical stability of biased estimates. More than 300 academic papers have been officially published both domestically and internationally, with 23 being included in SSCI and over 200 in SCI. As early as 1993, he served as the Chairman of the AMSE International Academic Conference Branch, Vice Chairman of the Reform and Development Branch of Large and Medium sized Enterprises at the First Academic Annual Conference of the Chinese Association for Science and Technology, and Chairman of the Main Venue of China's Financial and Economic Statistics to Meet WTO Challenges at the Fourth Academic Annual Conference of the Chinese Association for Science and Technology. In June 1997, won the first prize for the development and application of data from the third industrial census in Chongqing; In 1998, won the second prize of National Statistical Science and Technology Progress Award; In 2008, won the third prize of National Excellent Achievements in Statistical Research; In 2009, won the first prize for excellent teaching achievements in Chongqing.

In 1990, he was selected as one of the first batch of outstanding scientific and technological talents at the ministerial level by the Ministry of Transportation, and was the youngest young and middle-aged expert with outstanding contributions at the provincial and ministerial level in China at that time (26 years old); In December 1994, he was awarded the title of "Excellent Young Teacher" in Sichuan Province; Received special government subsidies from the State Council in 1996; In 2006, he was awarded the title of Young and Middle aged Backbone Teacher in Chongqing's universities; In 2008, he was awarded the title of Academic and Technical Leader in Probability Theory and Mathematical Statistics in Chongqing. During the tenure of the dean, he/she obtained the first doctoral degree in condensed matter physics and the second doctoral degree in computational mathematics from Chongqing University. He/she is the leader in the creation of doctoral programs in the first level discipline of mathematics and statistics at Chongqing University.