Prediction of human assessments of odor using electronic nose and neural networks

Fangle Chang, Paul Heinemann

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Scopus citations

Abstract

Use of instruments instead of human panels to assess odors can save money and make the collection process more efficient. In this work, an electronic nose comprising of an array of 32 internal polymer sensors was applied to collect measurements from dairy farm odor sources. Artificial neural networks using the Levenberg-Maerquardt Back-propagation algorithm were used to build prediction models to predict human response to odor pleasantness on a generic hedonic scale that ranged from -11 (extremely unpleasant) to +11 (extremely pleasant). Forward selection (FS), Gamma Test (GT), and Principal Component Analysis (PCA) were used to reduce the noise of the measurements. For 28 input candidates, eight variables were selected using GT, and nine variables were selected using FS and PCA, respectively. GT-LMBNN was considered as the highest accurate model based on the probability of separate validation results falling within the human assessments range.

Original languageEnglish (US)
Title of host publicationAmerican Society of Agricultural and Biological Engineers Annual International Meeting 2015
PublisherAmerican Society of Agricultural and Biological Engineers
Pages899-911
Number of pages13
ISBN (Electronic)9781510810501
StatePublished - Jan 1 2015
EventAmerican Society of Agricultural and Biological Engineers Annual International Meeting 2015 - New Orleans, United States
Duration: Jul 26 2015Jul 29 2015

Publication series

NameAmerican Society of Agricultural and Biological Engineers Annual International Meeting 2015
Volume2

Other

OtherAmerican Society of Agricultural and Biological Engineers Annual International Meeting 2015
CountryUnited States
CityNew Orleans
Period7/26/157/29/15

All Science Journal Classification (ASJC) codes

  • Bioengineering
  • Agronomy and Crop Science

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  • Cite this

    Chang, F., & Heinemann, P. (2015). Prediction of human assessments of odor using electronic nose and neural networks. In American Society of Agricultural and Biological Engineers Annual International Meeting 2015 (pp. 899-911). (American Society of Agricultural and Biological Engineers Annual International Meeting 2015; Vol. 2). American Society of Agricultural and Biological Engineers.