Kewei Tu    ()

Ph.D. Student
Advisor: Vasant Honavar
Department of Computer Science
Iowa State University

[Research Interests] [Projects] [Publications] [Education] [Teaching] [Contact Me] {Curriculum Vitae} {Research Blog}

Research Interests

My research interest lies in artificial intelligence, machine learning, and computational neuroscience. I am currently interested in grammar learning and concept learning. I'm also interested in neural and probabilistic modeling of perception and motor, as well as their potential applications in AI and Robotics.

Before coming to ISU, my research was focused on ontology engineering, including automatic ontology mapping and schema matching, ontology inference, and ontology visualization. In ontology mapping research, I improved previous approaches by better combining multiple mapping strategies using meta-learning. For ontology inference, my colleagues and I designed an efficient algorithm to perform RDF(S) reasoning on relational database. For ontology visualization, we proposed a novel approach to visualize large-scale ontologies in a holistic way. I also participated in and later led the development of an integrated ontology engineering environment called ORIENT. See my publications for the details.

Projects

Context-free grammar learning and applications

Past Projects

Publications

• Kewei Tu, Vasant Honavar, "Unsupervised Learning of Probabilistic Context-Free Grammar Using Iterative Biclustering". In Proceedings of 9th International Colloquium on Grammatical Inference (ICGI 2008), LNCS 5278, St Malo, Brittany, France, September 22-24, 2008. (Extended version)
• KeWei Tu, Miao Xiong, Lei Zhang, HaiPing Zhu, Jie Zhang and Yong Yu, "Towards Imaging Large-Scale Ontologies for Quick Understanding and Analysis". In Proceedings of the Fourth International Semantic Web Conference (ISWC2005), LNCS 3729/2005, Galway, Ireland, November 6-10, 2005.
• Jing Lu, Yong Yu, Kewei Tu, Chenxi Lin and Lei Zhang, "An Approach to RDF(S) Query, Manipulation and Inference on Databases". In Proceedings of the 6th International Conference on Web-Age Information Management (WAIM2005), LNCS 3739/2005, Hangzhou, China, October 11-13, 2005.
• KeWei Tu, "Automatic Ontology Mapping by Combining Multiple Stratergies" (in Chinese). Master thesis. Jan 2005.
• KeWei Tu, Yong Yu, "CMC: Combining Multiple Schema-Matching Strategies based on Credibility Prediction". In Proceedings of the 10th International Conference on Database Systems for Advanced Applications (DASFAA 2005), LNCS 3453, Beijing, China, April 17-20, 2005. (Full version)
• KeWei Tu, ChenXi Lin, Yong Yu, "Complex-Mapping Oriented Schema Mapping Composition". Technical report. Sept 2004.
• Lei Zhang, Yong Yu, Jing Lu, Chenxi Lin, KeWei Tu, MingChuan Guo, Zhuo Zhang, GuoTong Xie, Zhong Su, Yue Pan, "ORIENT: Integrate Ontology Engineering into Industry Tooling Environment". In Proceedings of the 3rd International Semantic Web Conference (ISWC2004), LNCS 3298, Hiroshima, Japan, Nov.7-11, 2004.
• Kewei Tu, Jing Lu, Haiping Zhu, Guowei Liu, Yong Yu, "A Semantic Search Approach by Graph Matching with Negations and Inferences", In Proceedings of the 11th International Conference on Conceptual Structures (ICCS 2003), LNCS 2746, Dresden, Germany, July 21-25, 2003.

Education

• Ph.D. Student, Department of Computer Science, Iowa State University, USA. (2005-Present)
• Master, Department of Computer Science and Engineering, Shanghai JiaoTong University, China. (2002-2005)
• Bachelor, Department of Computer Science and Engineering, Shanghai JiaoTong University, China. (1998-2002)

Teaching

I'm currently a TA of ComS 103 (Computer Literacy and Applications). I was a TA for ComS 227 (Introduction to Object-Oriented Programming) and ComS 342 (Principles of Programming Languages) in previous semesters. Before coming to ISU, I was a TA for a few years when pursuing my Master degree in Shanghai JiaoTong University.
 

Contact Me

Email	tukw cs.iastate.edu
Address	Department of Computer Science Atanasoff Hall Ames, IA 50011-1041 USA
Homepage	http://www.cs.iastate.edu/~tukw/