The University of Dublin | Trinity College -- Ollscoil Átha Cliath | Coláiste na Tríonóide
Trinity's Access to Research Archive
Home :: Log In :: Submit :: Alerts ::

TARA >
School of Computer Science and Statistics >
Computer Science >
Computer Science Technical Reports >

Please use this identifier to cite or link to this item: http://hdl.handle.net/2262/13144

Title: Solutions to Instability Problems with Sequential Wrapper-based Approaches to Feature Selection
Author: Dunne, Kevin
Cunningham, Pádraig
Azuaje, Francisco
Keywords: Computer Science
Issue Date: Jul-2002
Publisher: Trinity College Dublin, Department of Computer Science
Citation: Dunne, Kevin; Cunningham, Pádraig; Azuaje, Francisco. 'Solutions to Instability Problems with Sequential Wrapper-based Approaches to Feature Selection'. - Dublin, Trinity College Dublin, Department of Computer Science, TCD-CS-2002-28, 2002, pp22
Series/Report no.: Computer Science Technical Report
TCD-CS-2002-28
Abstract: It is generally accepted that Wrapper approaches will outperform Filter-based approaches to feature selection, particularly in situations where an adequate amount of data is available. What is often overlooked is that Wrapper approaches can be unstable. For instance, different partitionings of the training data can result in di erent routes through the search space and thus in di erent feature subsets being selected. In this paper we illustrate examples of this problem and a solution based on the aggregation of several runs of a sequential search is suggested. This is essentially an ensemble solution to instability in feature subset selection and it does seem to stabilise the process.
URI: https://www.cs.tcd.ie/publications/tech-reports/reports.02/TCD-CS-2002-28.pdf
http://hdl.handle.net/2262/13144
Appears in Collections:Computer Science Technical Reports

Files in This Item:

File Description SizeFormat
TCD-CS-2002-28.pdf521.78 kBAdobe PDFView/Open


This item is protected by original copyright


Please note: There is a known bug in some browsers that causes an error when a user tries to view large pdf file within the browser window. If you receive the message "The file is damaged and could not be repaired", please try one of the solutions linked below based on the browser you are using.

Items in TARA are protected by copyright, with all rights reserved, unless otherwise indicated.

 

Valid XHTML 1.0! DSpace Software Copyright © 2002-2010  Duraspace - Feedback