Research Interests

• Machine Learning and Data Mining, Data Clustering
• Applications of Machine Learning for Security
  
• Web Mining and Ontology Construction
  
• Fuzzy Logic and Fuzzy Systems
• Intelligent Information Retrieval and Interactive Systems
• Knowledge Representation, Logics in AI, Non-monotonic reasoning

Recent NSF Grant

From August 2003 to January 2010, Professor Chen was the Co-Principal Investigator of a large NSF-funded project on the profiling of terrorists and malicioius cyber transactions for counter terrorisms and crimes. For more detailed information about this project and its publications, please browse the web page  www.csc.lsu.edu/~chen/NSF-Project.htm

Courses Taught

• CSC3102 (Advanced Data Structures and Algorithm Analysis)           link to the class website
  
• CSC4402 (Introduction to Database Systems)                                       link to the class website
  
• CSC4444 (Artificial Intelligence)                                                             link to the class website
  
• CSC7333 (Machine Learning)                                                                 link to the class website
  
• CSC7442 (Data Mining and Knowledge Discovery from Databases)    link to the class website
  
• CSc7444 (Advanced Artificial Intelligence)                                            link to the class website
  
• CSC7700 (Special Topics in Computer Science)
• CSC7999 (Independent Study)
• CSC9000 (Dissertation Research)
• SYSC7090 (System Science Design Project)
• SYSC8000 (System Science Thesis Research)

Selected Journal Publications

• Patrick McDowell, Brian Bourgeois, Pamela J. McDowell, S.S. Iyengar and Jianhua Chen.  Relative Positioning for Team Robot Navigation. To Appear: Autonomous Robots, 2006.
  
• S. Seiden, P. Chen, R. Lax, J. Chen, G. Ding. New Bounds on Randomized Busing. Theoretical Computer Science,
  332 (2005), 63-81.
  
• J. Chen, Y. Chen, W. Gao, B. Zhang, A. Gider, S. Vuppala, D. Kraft, Fuzzy Clustering and Intelligent Search for A Web-based Fabric Database. Book Chapter in  Computational Web Intelligence - Intelligent Technology for Web Applications,
  Y. Zhang, A. Kandel, T. Lin, Y. Yao Eds., World Scientific Publishers, 2004, pp. 117-134.
  
• D. Kraft, M.J. Martin-Bautista, J. Chen, and D. Sanchez,  Rules and Fuzzy Rules in Text: Concept, Extraction and Usage.
  Special Issue of International Journal of Approximate Reasoning, August 2003.
  
• S. N. Sanchez, E. Triantaphyllou, J. Chen, W. Liao, An incremental learning algorithm for constructing Boolean functions from
  positive and negative examples,  Journal of Computers and Operations Research, 29(2002), pp. 1677-1700.
  
• S. Kundu, J. Chen, Learning Rules from Numerical Data by Combining Geometric and Graph TheoreticApproach,
  Robotics and Autonomous Systems, Elsevier, B.V.., 33 (2000), pp. 135-147.
• J. Chen, A Sound and Complete Proof Theory for the Generalized Logic of Only Knowing, Journal of Experimental and Theoretical AI,
  10(1998), pp. 421-438.
  
• J. Chen, The Generalized Logic of Only Knowing That Covers the Notion of Epistemic Specifications, Journal of Logic and Computation, Vol. 7, No. 2, 1997, pp. 159-174.
• S. Kundu, J. Chen, A New Method of Circumscribing Beliefs: the Propositional Case, Fundamenta Informatica, Vol. 29, No. 4, 1997, pp. 383-390.
• S. Kundu, J. Chen, Fuzzy Logic or Lukasiewicz Logic: A Clarification, Fuzzy Sets and Systems Vol. 95, 1998, pp. 369-379.
• R.R. Brooks, S.S. Iyengar, J. Chen, Automatic Correlation and Calibration of Noisy Sensor Readings using Elite Genetic Algorithms, Artificial Intelligence, 84(1-2), July 1996, pp. 339-354.
• S. Kundu, J. Chen, A New Class of Theories for which the Circumscription can be Obtained via Predicate Completion, Journal of Experimental and Theoretical AI, 8(1996), pp. 191-205.
• J. Chen, S. Kundu, The Strong Semantics for Logic Programs, Journal of Intelligent Information Systems, 5(1995), pp. 51-68.
• J. Chen, Relating Only Knowing to Minimal Knowledge and Negation as Failure, Journal of Experimental and Theoretical Artificial Intelligence, 6(1994), pp. 409-429.
• W. Wang, J. Chen, Learning by Discovering Problem Solving Heuristics through Experience, IEEE Transactions on Knowledge and Data Engineering, (4) Vol 3, 1991, pp. 415-420.

Selected Conference Publications

• J.R. Punuru and J. Chen. Automatic Acquisition of Concepts from Domain Texts. Proceedings of the IEEE Int. Conf. on Granular Computing, Atlanta, GA, May 2006.
• R. Lax, G. Ding, P. Chen and J. Chen.  Approximating Pseudo-Boolean Functions in Non-Uniform Domains.
  Proceedings of International Joint Conference on Artificial Intelligence (IJCAI), Scotland, August 2005.
• G. Ding, J. Chen, R. Lax, P. Chen. Efficient Learning of Pseudo-Boolean Functions from Limited Training Data.
  Lecture Notes in Computer Science, Vol. 3488(2005), Proceedings of International Symposium on Methodologies for Intelligent Systems, Saratoga Springs, NY, May 2005. pp. 323-331.
• L. Moscovich and J. Chen. Learning Hidden Markov Models using the State distribution Oracle.
  Proceedings of Int. Conference on Machine Learning and Applications (ICMLA), Louisville, KY, Dec. 2004.
• J. Chen, J. Chen and G.P. Kemp, Fuzzy Clustering and Decision Tree Learning for Time-series Tidal Data
  Classification.  Proceedings of FUZZ-IEEE2003, May 2003, St. Louis.
• J. Chen, Y. Chen, B. Zhang and A. Gider, Fuzzy Linear Clustering for Fabric Selection from Online Database,
  Proceedings of NAFIPS-FLINT 2002 Int. Conference, New Orleans June 2002.
• J. Chen, Combining Description Logic and Stratified Logic Programs in Knowledge Representation,   Proceedings of the 12th International Symposium on Methodologies for Intelligent Systems (IMSIS'2000), Charlotte, NC, October 2000.
• D. Kraft and J. Chen,  Integrating and Extending Fuzzy Clustering and Inference to Improve Text Retrieval Performance,
  Proceedings of Flexible Query Answering Systems (FQAS2000), Warsaw, Poland, October 2000.
• J. Chen, A Class of Stratified Programs in Autoepistemic Logic of Knowledge and Belief,  Proceedings of the 11th International Symposium on Methodologies for Intelligent Systems (IMSIS'99), Warsaw, Poland, June 1999.
• J. Chen, Embedding Prioritized Circumscription in Logic Programs. Proceedings of 10th International Symposium on Methodologies for Intelligent Systems,, October 1997.
• E. R. Mertooetomo, J. Chen, Character Recognition with Fuzzy Features and Fuzzy Regions. Proceedings of North Americal Fuzzy Info. Processing Society (NAFIPS) Conference, Sept. 1997.
• A. Mikulcic, J. Chen, Experiments on Application of Fuzzy Clustering in Fuzzy System Design, Proceedings of FUZZ'IEEE 1996, New Orleans, LA, September 1996.
• J. Chen, S. Kundu, Fuzzy Control System Design by Fuzzy Clustering and Self-Organization, Proceedings of NAFIPS'96 Conference, Berkeley, CA, June 1996.
• J. Chen, S. Kundu, A Sound and Complete Fuzzy Logic System using Zadeh's Implication Operator, Proceedings of the 9th Internation Symposium on Methodologies for Intelligent Systems (ISMIS'96), Poland, June 1996, LNAI 1079, pp. 233-242.
• N. Mada, J. Chen and S.K. MacGregor, ALAN: A Multimedia Intelligent Tutoring System, Proceedings of the 4th Golden West International Conference on Intelligent Systems, San Francisco, CA, June 1995.
• S. Kundu, J. Chen, Fuzzy Linear Invariant Clustering with Applications in Fuzzy Control, Proceedings of NAFIPS/IFIS/NASA-94 Conference, San Antonio, TX, December 1994.
• V. Goel, J. Chen, An Expert Network Approach to Material Selection in Engineering Design, Proceedings of the International Symposium on Integrating Knowledge and Neural Heuristics, Pensacola, FL, May 1994, pp. 206-215.
• J. Chen, Inductive Learning of Stratified Logic Programs via Non-monotonic Inference. Proceedings of the 1994 Florida Artificial Intelligence Research Symposium, Pensacola, FL, May 1994, pp. 81-85.
• J. Chen, Application of Boolean Expression Minimization to Learning via Hierarchical Generalizations, Proceedings of the 1994 Symposium on Applied Computing (SAC'94), Phoenix, AZ, March 1994, pp. 303-307.
• J. Chen, Minimal Knowledge + Negation as Failure = Only Knowing (Sometimes), Proceedings of the 2nd International Workshop on Logic Programming and Nonmonotonic Reasoning, Portugal, June 1993, pp. 132-150.
• J. Chen, The Logic of Only Knowing as a Unified Framework for Non-monotonic Reasoning, Proceedings of the 7th International Symposium on Methodologies for Intelligent Systems (ISMIS'93), Norway, June 1993.
• J. Chen, A Refined Semantics for Disjunctive Logic Programs, Proceedings of the European Conference on Artificial Intelligence (ECAI'92)).
• W. C. Jung, B. Jones, J. Chen, Optimization of the Decision Tree, Proceedings of the 3rd International Conference on Tools for Artificial Intelligence, Nov. 1991.
• S. Kundu, J. Chen, Truth in Truth-maintenance, Proceedings of International Symposium on Methodologies for Intelligent Systems, (ISMIS'89), October 12-14, 1989, pp. 468-476.
• L. Xu, J. Chen, L. Yang, Solving the Plane Geometry Problem by Learning, Proc. of 1st International Conference on Computers and Applications, Beijing, China, 1984, pp. 862-869.