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Information Theoretic Analysis for Input Vector Selection in Black Box Modeling

[+] Author Affiliations
Brett Martin, Peter H. Meckl

Purdue University, West Lafayette, IN

Benjamin J. Zwissler

Cummins, Inc., Columbus, IN

Paper No. IMECE2002-33451, pp. 249-254; 6 pages
doi:10.1115/IMECE2002-33451
From:
  • ASME 2002 International Mechanical Engineering Congress and Exposition
  • Dynamic Systems and Control
  • New Orleans, Louisiana, USA, November 17–22, 2002
  • Conference Sponsors: Dynamic Systems and Control Division
  • ISBN: 0-7918-3629-0 | eISBN: 0-7918-1691-5, 0-7918-1692-3, 0-7918-1693-1
  • Copyright © 2002 by ASME

abstract

When developing a black box model, the precise functional relationship between inputs and output is unknown. Engineers and scientists have turned to various regression tools in order to effectively capture the relationship based on past data observations. When modeling this data, however, it is important to only use inputs that provide information about the output. This paper presents a method of selecting the most informational input vectors for use in regression model building. This information-theoretic analysis for input vector selection requires only past data observations. Experimental results show that models built on the most informational input vectors produce less mean squared error on both training and validation data sets.

Copyright © 2002 by ASME

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