Machine learning algorithms to predict core, skin, and hair-coat temperatures of piglets
Autor(a) principal: | |
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Data de Publicação: | 2018 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1016/j.compag.2018.06.028 http://hdl.handle.net/11449/160465 |
Resumo: | Internal-body (core) and surface temperatures of livestock are important information that indicate heat stress status and comfort of animals. Previous studies focused on developing mechanistic and empirical models to predict these temperatures. Mechanistic models based on bioenergetics of animals often require parameters that may be difficult to obtain (e.g., thickness of internal tissues). Empirical models, on the other hand, are databased and often assume linear relationships between predictor (e.g., air temperature) and response (e.g., internal-body temperature) variables although, from the theory of bioenergetics, the relationship between the predictor and the response variables is non-linear. One alternative to consider non-linearity is to use machine learning algorithms to predict physiological temperatures. Unlike mechanistic models, machine learning algorithms do not depend on biophysical parameters, and, unlike linear empirical models, machine learning algorithms automatically select the predictor variables and find non-linear functions between predictor and response variables. In this paper, we tested four different machine learning algorithms to predict rectal (T-r), skin-surface (T-s), and hair-coat surface (T-h) temperatures of piglets based on environmental data. From the four algorithms considered, deep neural networks provided the best prediction for T-r with an error of 0.36%, gradient boosted machines provided the best prediction for T-s with an error of 0.62%, and random forests provided the best predictions for T-h with an error of 1.35%. These three algorithms were robust for a wide range of inputs. The fourth algorithm, generalized linear regression, predicted at higher errors and was not robust for a wide range of inputs. This study supports the use of machine learning algorithms (specifically deep neural networks, gradient boosted machines, and random forests) to predict physiological temperature responses of piglets. |
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Machine learning algorithms to predict core, skin, and hair-coat temperatures of pigletsBioenergeticsMachine learningPigletsPrecision livestock farmingTemperatureInternal-body (core) and surface temperatures of livestock are important information that indicate heat stress status and comfort of animals. Previous studies focused on developing mechanistic and empirical models to predict these temperatures. Mechanistic models based on bioenergetics of animals often require parameters that may be difficult to obtain (e.g., thickness of internal tissues). Empirical models, on the other hand, are databased and often assume linear relationships between predictor (e.g., air temperature) and response (e.g., internal-body temperature) variables although, from the theory of bioenergetics, the relationship between the predictor and the response variables is non-linear. One alternative to consider non-linearity is to use machine learning algorithms to predict physiological temperatures. Unlike mechanistic models, machine learning algorithms do not depend on biophysical parameters, and, unlike linear empirical models, machine learning algorithms automatically select the predictor variables and find non-linear functions between predictor and response variables. In this paper, we tested four different machine learning algorithms to predict rectal (T-r), skin-surface (T-s), and hair-coat surface (T-h) temperatures of piglets based on environmental data. From the four algorithms considered, deep neural networks provided the best prediction for T-r with an error of 0.36%, gradient boosted machines provided the best prediction for T-s with an error of 0.62%, and random forests provided the best predictions for T-h with an error of 1.35%. These three algorithms were robust for a wide range of inputs. The fourth algorithm, generalized linear regression, predicted at higher errors and was not robust for a wide range of inputs. This study supports the use of machine learning algorithms (specifically deep neural networks, gradient boosted machines, and random forests) to predict physiological temperature responses of piglets.Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)USDA/Hatch (Washington, DC) funds as part of the Cornell UniversityCornell Univ, Dept Biol & Environm Engn, Ithaca, NY 14853 USAState Univ Sao Paulo, Lab Anim Biometeorol, Dept Anim Sci, Fac Agr & Vet Sci, BR-14884900 Jaboticabal, SP, BrazilState Univ Sao Paulo, Lab Anim Biometeorol, Dept Anim Sci, Fac Agr & Vet Sci, BR-14884900 Jaboticabal, SP, BrazilCNPq: 203312/2014-7FAPESP: 17.519/14USDA/Hatch (Washington, DC) funds as part of the Cornell University: W-3173Elsevier B.V.Cornell UnivUniversidade Estadual Paulista (Unesp)Gorczyca, Michael T.Milan, Hugo Fernando MaiaCampos Maia, Alex Sandro [UNESP]Gebremedhin, Kifle G.2018-11-26T16:04:34Z2018-11-26T16:04:34Z2018-08-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article286-294application/pdfhttp://dx.doi.org/10.1016/j.compag.2018.06.028Computers And Electronics In Agriculture. Oxford: Elsevier Sci Ltd, v. 151, p. 286-294, 2018.0168-1699http://hdl.handle.net/11449/16046510.1016/j.compag.2018.06.028WOS:000440119900030WOS000440119900030.pdfWeb of Sciencereponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengComputers And Electronics In Agriculture0,814info:eu-repo/semantics/openAccess2023-10-31T06:11:44Zoai:repositorio.unesp.br:11449/160465Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462023-10-31T06:11:44Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Machine learning algorithms to predict core, skin, and hair-coat temperatures of piglets |
title |
Machine learning algorithms to predict core, skin, and hair-coat temperatures of piglets |
spellingShingle |
Machine learning algorithms to predict core, skin, and hair-coat temperatures of piglets Gorczyca, Michael T. Bioenergetics Machine learning Piglets Precision livestock farming Temperature |
title_short |
Machine learning algorithms to predict core, skin, and hair-coat temperatures of piglets |
title_full |
Machine learning algorithms to predict core, skin, and hair-coat temperatures of piglets |
title_fullStr |
Machine learning algorithms to predict core, skin, and hair-coat temperatures of piglets |
title_full_unstemmed |
Machine learning algorithms to predict core, skin, and hair-coat temperatures of piglets |
title_sort |
Machine learning algorithms to predict core, skin, and hair-coat temperatures of piglets |
author |
Gorczyca, Michael T. |
author_facet |
Gorczyca, Michael T. Milan, Hugo Fernando Maia Campos Maia, Alex Sandro [UNESP] Gebremedhin, Kifle G. |
author_role |
author |
author2 |
Milan, Hugo Fernando Maia Campos Maia, Alex Sandro [UNESP] Gebremedhin, Kifle G. |
author2_role |
author author author |
dc.contributor.none.fl_str_mv |
Cornell Univ Universidade Estadual Paulista (Unesp) |
dc.contributor.author.fl_str_mv |
Gorczyca, Michael T. Milan, Hugo Fernando Maia Campos Maia, Alex Sandro [UNESP] Gebremedhin, Kifle G. |
dc.subject.por.fl_str_mv |
Bioenergetics Machine learning Piglets Precision livestock farming Temperature |
topic |
Bioenergetics Machine learning Piglets Precision livestock farming Temperature |
description |
Internal-body (core) and surface temperatures of livestock are important information that indicate heat stress status and comfort of animals. Previous studies focused on developing mechanistic and empirical models to predict these temperatures. Mechanistic models based on bioenergetics of animals often require parameters that may be difficult to obtain (e.g., thickness of internal tissues). Empirical models, on the other hand, are databased and often assume linear relationships between predictor (e.g., air temperature) and response (e.g., internal-body temperature) variables although, from the theory of bioenergetics, the relationship between the predictor and the response variables is non-linear. One alternative to consider non-linearity is to use machine learning algorithms to predict physiological temperatures. Unlike mechanistic models, machine learning algorithms do not depend on biophysical parameters, and, unlike linear empirical models, machine learning algorithms automatically select the predictor variables and find non-linear functions between predictor and response variables. In this paper, we tested four different machine learning algorithms to predict rectal (T-r), skin-surface (T-s), and hair-coat surface (T-h) temperatures of piglets based on environmental data. From the four algorithms considered, deep neural networks provided the best prediction for T-r with an error of 0.36%, gradient boosted machines provided the best prediction for T-s with an error of 0.62%, and random forests provided the best predictions for T-h with an error of 1.35%. These three algorithms were robust for a wide range of inputs. The fourth algorithm, generalized linear regression, predicted at higher errors and was not robust for a wide range of inputs. This study supports the use of machine learning algorithms (specifically deep neural networks, gradient boosted machines, and random forests) to predict physiological temperature responses of piglets. |
publishDate |
2018 |
dc.date.none.fl_str_mv |
2018-11-26T16:04:34Z 2018-11-26T16:04:34Z 2018-08-01 |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.1016/j.compag.2018.06.028 Computers And Electronics In Agriculture. Oxford: Elsevier Sci Ltd, v. 151, p. 286-294, 2018. 0168-1699 http://hdl.handle.net/11449/160465 10.1016/j.compag.2018.06.028 WOS:000440119900030 WOS000440119900030.pdf |
url |
http://dx.doi.org/10.1016/j.compag.2018.06.028 http://hdl.handle.net/11449/160465 |
identifier_str_mv |
Computers And Electronics In Agriculture. Oxford: Elsevier Sci Ltd, v. 151, p. 286-294, 2018. 0168-1699 10.1016/j.compag.2018.06.028 WOS:000440119900030 WOS000440119900030.pdf |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Computers And Electronics In Agriculture 0,814 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
286-294 application/pdf |
dc.publisher.none.fl_str_mv |
Elsevier B.V. |
publisher.none.fl_str_mv |
Elsevier B.V. |
dc.source.none.fl_str_mv |
Web of Science reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1799964770768519168 |