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Tytuł artykułu

Incremental Computing Approximations with the Dynamic Object set in Interval-valued Ordered Information System

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Języki publikacji
EN
Abstrakty
EN
Rough set theory has been successfully used in formation system for classification analysis and knowledge discovery. The upper and lower approximations are fundamental concepts of this theory. The new information arrives continuously and redundant information may be produced with the time in real-world application. So, then incremental learning is an efficient technique for knowledge discovery in a dynamic database, which enables acquiring additional knowledge from new data without forgetting prior knowledge, which need to be updated incrementally while the object set get varies over time in the interval-valued ordered information system. In this paper, we analyzed the updating mechanisms for computing approximations with the variation of the object set. Two incremental algorithms respectively for adding and deleting objects with updating the approximations are proposed in interval-valued ordered information system. Furthermore, extensive experiments are carried out on six UCI data sets to verify the performance of these proposed algorithms. And the experiments results indicate the incremental approaches significantly outperform non-incremental approaches with a dramatic reduction in the computational time.
Wydawca
Rocznik
Strony
373--397
Opis fizyczny
Bibliogr. 44 poz., rys., tab.
Twórcy
autor
  • School of Mathematics and Statistics Chongqing University of Technology Chongqing, 400054, P.R. China
autor
  • School of Mathematics and Statistics Chongqing University of Technology Chongqing, 400054, P.R. China
Bibliografia
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  • [5] H.M. Chen, T.R. Li, S.J. Qiao, D. Ruan, A rough set based dynamic maintenance approach for approximations in coarsening and refining attribute values, International Journal of Intelligent Systems, 25, 2010, 1005-1026.
  • [6] H.M. Chen, T.R. Li, D. Ruan, J.H. Lin, C.X. Hu, A rough-set based incremental approach for updating approximations under dynamic maintenance environments, IEEE Transactions on Knowledge and Data Engineering, 25, 2013, 274-284.
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  • [20] D. Liu, T.R. Li, D. Ruan, W.L. Zou, An incremental approach for inducing knowledge from dynamic information systems, Fundamenta Informaticae, 94, 2009, 245-260.
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  • [22] C. Luo, T.R. Li, H.M. Chen, D. Liu, Incremental approaches for updating approximations in set-valued ordered information systems, Knowledge-Based Systems , 50, 2013, 218-233.
  • [23] S.Y. Li, T.R. Li, D. Liu, Dynamic maintenance of approximations in dominance-based rough set approach under the variation of the object set, International Journal of Systems, 28, 2013, 729-751.
  • [24] S.Y. Li, T.R. Li, D. Liu, Incremental updating approximations in dominance-based rough sets approach under the variation of the attribute set, Knowledge-Based systems, 40, 2013, 17-26.
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  • [39] X.B. Yang, D.J. Yu, J.Y. Yang, L.H.Wei, Dominance-based rough set approach to incomplete interval-valued information system, Data & Knowledge Engineering, 68, 2009, 1331-1347.
  • [40] X.B. Yang, Y. Qi, D.J. Yu, H.L. Yu, J.Y Yang, _-Dominance relation and rough sets in interval-valued information systems, Information Sciences,294, 2015, 334-347.
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Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-95d8a0ab-ec2d-4084-94a6-2c7d53d37e46
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