Abstract: The Semantic Web is considered as the next generation of the Web. It provides a common framework that allows data to be shared and reused across application, enterprise, and community boundaries. Much knowledge has been published on the semantic Web. Such knowledge is unavoidablely imprecise because the methods that are used to extract it are mostly based on statistics, and the methods that generate mapping between different sources may cause imprecision. In this talk, I will talk about some of my work on reasoning with large-scale imprecise knowledge on the Semantic Web using MapReduce. In the first part of the presentation, I will focus on the dava level, that is, reasoning with large scale fuzzy semanitc data. The underlying language is fuzzy OWL 2 RL. In the second part of the presentation, I will focus on the schema level, that is, reasoning with large scale fuzzy OWL 2 EL ontologies. For both parts of the presentation, I will give the challenges of applying MapReduce to reasoning with imprecise knowledge and our solutions to deal with these challenges. I will talk about other issues in the third part of the presentation, such as debugging large scale knowledge bases and reasoning with annotated knowledge. Finally, I will conclude the presentation and discuss what can be the next steps of large scalable reasoning with imprecise knowledge.
Bio: Dr. Guilin Qi is a professor working at Southeast University in China. He was a visiting professor of Griffith University (from November 2011 to February 2011 and from June 2013 to July 2013) and a visiting professor of IRIT - Université Toulouse 1. He is the head of the Knowledge Science and Engineering Lab and the deputy director of Web Science research lab at Southeast University. He is a professional member of ACM and a member of China Computer Federation. He received his PhD in Computer Science from Queen's University of Belfast in 2006. Before he moved back to China, 2009, he had worked in Institute AIFB at University of Karlsruhe for three years. His research interests include knowledge representation and reasoning, uncertainty reasoning, and semantic web. He has published over 90 papers in these areas, many of which published in proceedings of major conferences or journals. One of his paper won a best paper running-up award at ASWS’08. He is in the editorial board of the Journal of Web Semantics, which is one of the top journals in Semantic Web. He is an associate editor of the Journal of Advances in Artificial Intelligence and has co-edited a special issue of Annals of Mathematics and Artificial Intelligence. He is one of the general Chairs of 2013 Chinese Semantic Web Symposium and Web Science Conference (CSWS’13) and was a PC co-Chair of CSWS’09 and CSWS’12. He is a co-Chair of the poster and demo track of EKAW’14 and is a co-Chair of the poster and demo track of ISWC’11 and JIST’13. He has organized a couple of international workshops, including WL4AI’13, EvoDyn’13, WoDOOM12-13, C&O'08, ARea'08, ARCOE 09-10, IWOD'10. He has served as PC members of several international conferences and workshops, such as IJCAI’11,13, AAAI’11-13, KR'12, ECAI'12 and ECAI’14, ESWC11-13, ISWC09-13. He was invited to give a lecture at Reasoning Web summer school in Vienna in 2012 and was invited to give a couple of talks in some famous Chinese universities. He gave several tutorials in some top conferences, such as AAAI’10 and ISWC’11.
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