Abstract
The purpose of this paper is to present a hybrid Knowledge Representation System (KRS) in which Terminological Logic (TL) and Fuzzy Logic (FL) resources are used to store and to retrieve information. Knowledge here must be related to technical subjects that deals with terms whose meanings are vague and whose definitions are dependent on taxonomic organization of other terms, such as demographic census, medical diagnosis etc. Terminological and Assertional Knowledge compose the Knowledge Base (KB). The Terminological Knowledge defines crisp and fuzzy terms by means of TL term constructors. The Assertional Knowledge describes the world by means of Predicate Calculus formulae whose variables are annotated by TL expressions. The inference engine is able to answer questions that include Natural Language (NL) fuzzy quantifiers such asseveral, some, most, many etc. The advantages to be gained by this hybrid approach are: the ease of expressing knowledge and of retrieving information where the definition of fuzzy terms depend on several factors (for example, the definition of the fuzzy termtall for human beings depends on the height, the sex and the age of individuals); the contribution of using subsumption to improve the information retrieval process in goals that are structured in terms of NL fuzzy quantifiers.
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References
G. Bittencourt, The Integration of Terminological and Logical Knowledge Representation Languages, Elsevier Science Publishing Co., Inc., 1990.
R.M. Da Silva Julia, Un Systme Hybride Pour le traitement du Langage Naturel et pour la Rcuperation de l’Information, PhD Thesis, Universit Paul Sabatier, Toulouse, France, 1995.
R.M. Da Silva Julia, A.C Pereira, W.M. Arantes, A.M.S. Guillén, Improving Incremental Construction of Knowledge Bases by Using Terminological Logic Resources, IEEE’98 International Conference on SMC, San Diego, California, USA, 1998.
F. Gomide and W. Pedrycz, An Introduction to Fuzzy Sets, Analysis and Design, MIT - Press, 1998.
E.S. Lee, Q. Zhu, Fuzzy and Evidence Reasoning, Physica - Verlag Heidelberg, 1995.
Natural Center for Health Statistics, Clinical growth charts,http://www.cdc.gov/nchs/about/major/nhanes/growthcharts/clinical_charts.htm, Revised November 21, 2000, Accessed June 6, 2002.
B. Nebel, Reasoning and Revision in Hybrid Representation Systems, Published 1990 by Springer-Verlag, Berlin, Heidelberg, New York as LNAI 422, Reprinted June 1995.
V. Novák, Fuzzy Set and Their Applications, Adam-Hilger, Bristol, UK, 1989.
V. Novák, Fuzzy Logic: Applications to Natural Language, In: Encyclopedia of Artificial Intelligence, Second Edition, 515-521, 1992.
P.F. Patel-Schneider, A hybrid, decidable, logic-based knowledge representation system, 1987.
S. Russel and P. Norving, Artificial Intelligence: A Modern Approach, Prentice Hall, Inc., 1995.
F. Sebastiane and U. Straccia, A Computationally Tractable Terminological Logic, 1991.
M. Vilain, The Restricted Languages Architecture of a Hybrid Representation System, Proceedings IJCAI-85, Los Angeles, CA, 1985.
R.R. Yager, S. Ovchinnikov, R.M. Tong, H.T. Nguyen, Fuzzy Sets and Applications: Selected Papers by L.A. Zadeh, John Wiley & Sons, 1987.
L.A. Zadeh, Fuzzy Sets, Information and Control, 8, 338-353, 1965.
L.A. Zadeh, A Computational Approach to Fuzzy Quantifiers in Natural Languages, Computers and Mathematics with Applications, 1983.
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da Silva Julia, R.M., de Resende, F.E.M., Pereira, A.E.C. (2003). A Hybrid KRS to Treat Fuzzy and Taxonomic Knowledge. In: Bramer, M., Preece, A., Coenen, F. (eds) Research and Development in Intelligent Systems XIX. Springer, London. https://doi.org/10.1007/978-1-4471-0651-7_9
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DOI: https://doi.org/10.1007/978-1-4471-0651-7_9
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