Generating Weighted Fuzzy Rules for Estimating Null Values Using an Evolutionary Algorithm

Author

Islam, Muhammad Nazrul ; Shill, Pintu Chandra ; Mridha, Muhammad Firoz ; Muhammad, D. ; Islam, Sariful ; Hashem, M.M.A.

Author_Institution

Dept. of Comput. Sci. & Eng., Khulna Univ. of Eng. & Technol.

fYear

2006

fDate

19-21 Dec. 2006

Firstpage

324

Lastpage

327

Abstract

In this paper we have been trying to estimate null values from relational database systems. At present some methods exist to estimate null values from relational database systems. The estimated accuracy of the existing methods are not good enough. We use advance technique for estimating null values in relational database systems. In our paper we present the technique to generate weighted fuzzy rules from relational database systems for estimating null values using evolutionary algorithms. The parameters (operators) of the evolutionary algorithms are adapted via fuzzy systems. We have fuzzified the attribute values using membership functions shape, type and parameter values. The results of the evolutionary algorithms are the weights of the attributes. The different weight of attribute generates a set of fuzzy rules. From this we have obtained a set of rules. Our proposed techniques have a higher average estimated accuracy rate and able to estimate the null values in relational database systems

Keywords

evolutionary computation; expert systems; fuzzy set theory; fuzzy systems; relational databases; attribute values; evolutionary algorithm; fuzzy expert system; membership functions shape; null values; parameter values; relational database systems; weighted fuzzy rules; Computer science; Counting circuits; Data engineering; Evolutionary computation; Fuzzy sets; Fuzzy systems; Genetic mutations; Hybrid intelligent systems; Relational databases; Shape; Evolutionary Algorithms; Fuzzy Expert System; Membership Functions; Null values; Relational Database Systems; Weighted Fuzzy Rules;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical and Computer Engineering, 2006. ICECE '06. International Conference on

Conference_Location

Dhaka

Print_ISBN

98432-3814-1

Type

conf

DOI

10.1109/ICECE.2006.355637

Filename

4178473