Determining the membership values to optimize retrieval in a fuzzy relational database
作者： Shweta Sanghi
关键词:
摘要: A fuzzy data model is able to represent ambiguities in values as well impreciseness the associations among them. In these systems, imprecise information can be stored using linguistic terms (e.g. young, big) that are used frequently daily life. Although words ambiguous, community agreement reached their meaning. Fuzzy Relational Database extends a normal relational database by adding and membership functions. function mathematical defines degree of an element's set. This research aims determine best way setting given feedback elicited from community. It proposed construct Direct Rating method. approach subscribes point view fuzziness arises subjective vagueness. The method then compared with Random Method.
acm.org
sci-hub.se 参考文章(8)
Taner Bilgiç, I Burhan Türkşen, None, Measurement of Membership Functions: Theoretical and Empirical Work Springer, Boston, MA. pp. 195- 227 ,(2000) , 10.1007/978-1-4615-4429-6_4
Karen L. Joy, Smita Dattatri, Implementing a fuzzy relational database using community defined membership values Proceedings of the 43rd annual southeast regional conference on - ACM-SE 43. pp. 264- 265 ,(2005) , 10.1145/1167350.1167427
Jean-Lou Chameau, Juan Carlos Santamarina, Membership functions I: Comparing methods of measurement International Journal of Approximate Reasoning. ,vol. 1, pp. 287- 301 ,(1987) , 10.1016/S0888-613X(87)80003-8
Hideo Tashiro, Naoto Ohki, Takahiko Nomura, Teruo Yokoyama, Yutaka Masushita, Managing subjective information in fuzzy database systems conference on scientific computing. pp. 156- 161 ,(1993) , 10.1145/170791.170823
I.B. Turksen, Measurement of membership functions and their acquisition Fuzzy Sets and Systems. ,vol. 40, pp. 5- 38 ,(1991) , 10.1016/0165-0114(91)90045-R
P. Bosc, O. Pivert, SQLf: a relational database language for fuzzy querying IEEE Transactions on Fuzzy Systems. ,vol. 3, pp. 1- 17 ,(1995) , 10.1109/91.366566
John H. Boose, Knowledge Acquisition Tools, Methods, and Mediating Representations ,(1990)
Lotfi A. Zadeh, Fuzzy sets Fuzzy sets, fuzzy logic, and fuzzy systems. pp. 394- ,(1996)