Universiti Teknologi Malaysia Institutional Repository

Outlier elimination using granular box regression

Reza Mashinchi, M. and Selamat, A. and Ibrahim, S. and Fujita, H. (2016) Outlier elimination using granular box regression. Information Fusion, 27 . pp. 161-169. ISSN 1566-2535

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Official URL: https://www.scopus.com/inward/record.uri?eid=2-s2....

Abstract

A regression method desires to fit the curve on a data set irrespective of outliers. This paper modifies the granular box regression approaches to deal with data sets with outliers. Each approach incorporates a three-stage procedure includes granular box configuration, outlier elimination, and linear regression analysis. The first stage investigates two objective functions each applies different penalty schemes on boxes or instances. The second stage investigates two methods of outlier elimination to, then, perform the linear regression in the third stage. The performance of the proposed granular box regressions are investigated in terms of: volume of boxes, insensitivity of boxes to outliers, elapsed time for box configuration, and error of regression. The proposed approach offers a better linear model, with smaller error, on the given data sets containing varieties of outlier rates. The investigation shows the superiority of applying penalty scheme on instances.

Item Type:Article
Uncontrolled Keywords:Statistics, Data abstraction, Data simplification, Granular box regression, Noisy data, Outlier elimination, Regression analysis
Subjects:Q Science > QA Mathematics > QA76 Computer software
Divisions:Computing
ID Code:71674
Deposited By: Widya Wahid
Deposited On:16 Nov 2017 06:06
Last Modified:16 Nov 2017 06:06

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