Master of Mathematics , Nanjing University, July 1993

Aug.  1993  to  Present:  Department of Computer Science and Engineering ,
                    Shanghai Jiao Tong University,

Discrete Mathematical Structure ,  Data Structure , Mathematical Logic and Computability Theory ,Algorithm Designing , Computational Linguistics

1.                      Yi Hu, Ruzhan Lu, Yuquan Chen and Jianyong Duan. Using a Generative Model for Sentiment Analysis. International Journal of Computational Linguistics and Chinese Language Processing. Vol. 12, No. 2, pp. 107-126, 2007.
2.                      Yi Hu, Ruzhan Lu, Yuquan Chen, Maosheng Zhong. Exploring A Multi-feature Based Language Modeling Method for Sentiment Classification. Special Issue on Dynamics of Continuous, Discrete and Impulsive Systems, Series B: Applications and Algorithms, 14(S4), pp. 386-391, Watam Press, Waterloo, 2007.
3.                      Yi Hu, Ruzhan Lu, Yuquan Chen, Maosheng Zhong and Jianyong Duan. A Rough Pattern Based Method for Automated Extraction of Conceptual Knowledge from a Chinese Dictionary. Special Issue on Dynamics of Continuous, Discrete and Impulsive Systems, Series B: Applications and Algorithms, 14(S4), pp. 405-408, Watam Press, Waterloo, 2007.
4.                      Yi Hu, Ruzhan Lu, Yuquan Chen and Bingzhen Pei. A Way for Applying Conceptual Knowledge Derived from a Traditional Dictionary to Document Clustering. WSEAS Transactions on Information and Applications. 2007.
5.        Hu Yi, Lu Ruzhan, Li Xuening, Duan Jianyong, Chen Yuquan. Research on Language Modeling Based Sentiment Classification of Text. Journal of Computer Research and Development (EI Journal, One Top Journal in China), Vol. 44, No. 9, pp. 1469-1475, 2007. EI Accession number:  074110859629.
6.        Hu Yi, Lu Ruzhan, Chen Yuquan and Liu Hui. Research on Quantified Lexical Relationship within the Dictionary Based Chinese Text Clustering. High Technology Letter. Vol. 17, no. 8, pp. 778-782, 2007. EI Accession number: 073710810851.
7.        Gao Feng, Chen Yuquan, Wu Weilin and Lu Ruzhan. A study on situational description in domain of mobile phone operation. 6th International Workshop on Human Interaction with Machines : 117-128, 2006.
8.        Jiang feng,Liu Hui, Chen Yuquan,An Enhanced Model for Chinese Word Segmentation and Part-of-Speech Tagging. 3rd SIGHAN Workshop in conjunction with ACL 2004 ,2004．10


9. Yuquan Chen, Ruzhan lu, "An automatic semantic interpretation system based on intensional temporal logic",Proceeding of JSCL'2001,2001.7,The Press of Tsinghua University
10. Yimin Zhang, Yuquan Chen, Ruzhan lu, A Trainable Fast Partial Parsing Method For Chinese, Journal of Software, Dec.2000.
11. Yuquan Chen, Ruzhan lu, Data Mining Algorithm for Text Data, Journal of Shanghai Jiaotong University, July,2000
12. Yuquan Chen, Ruzhan lu, Neologism Dictionary Compilation Based on Data Mining, Journal of Shanghai Jiaotong University , July,2000
13. Libin Shen, Yuquan Chen, Design and Implementation of a Chinese Parser ，NLPRS'99
14. Computer-assisted Neologism Dictionary Compilation, NCYCS'98
15. Yuquan Chen, Ruzhan lu, Automatic Theorem Proving Based on Matings, Journal of Software, No. 4 , 1997
16. Yizhong Lu, Yuquan Chen, Relativized Polynomial Isomorphism of Complete Sets of UP,βn , and FewP , Computer research and Development , No. 6 , 1995
17. Yuquan Chen, Yizhong Lu, Separating UP,βn , and FewP with Tally Oracles, Journal of Nanjing University , Mathematical Biquarterly , No. 5 , 1995

NSFC:
1)Techniques for Proving Higher-order Logic Theorem
2)Studies on the Computational Framework of Chinese Semantics 
3)Semantics and Pragmatics of Natural Language Processing 
State Language Commission: 
Balanced Corpus Processing of Modern Chinese
Co-operations with IT companies:
1）Xerox (Singapore Language Service Center):   
            English-Chinese Translation of Automobile Information 
2）IBM: Phone voice inquiry system 
3）Intel: Parser based on phrasal grammar
4）Motorola: Human-Computer Interaction system
5）Fuji Xerox: parser of Chinese language