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

Courses Taught

• CSC3102 (Advanced Data Structures and Algorithm Analysis)           link to the class website
  
• CSC4402 (Introduction to Database Systems)                                       link to the class website
  
• CSC7333 (Machine Learning)                                                                 link to the class website
  
• CSC7442 (Data Mining and Knowledge Discovery from Databases)
• 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.