Prediction of Post-Diagnostic Decisions for Tested Hand Grenades’ Fuzes Using Decision Trees

The article presents a brief history of creation of decision trees and defines the purpose of the undertaken works. The process of building a classification tree, according to the CHAID method, is shown paying particular attention to the disadvantages, advantages, and characteristics features of thi...

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Main Author: Dariusz AMPUŁA
Format: Article
Language:English
Published: Military University of Technology, Warsaw, Poland 2021-06-01
Series:Problemy Mechatroniki
Subjects:
Online Access:http://promechjournal.pl/gicid/01.3001.0014.9332
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author Dariusz AMPUŁA
author_facet Dariusz AMPUŁA
author_sort Dariusz AMPUŁA
collection DOAJ
description The article presents a brief history of creation of decision trees and defines the purpose of the undertaken works. The process of building a classification tree, according to the CHAID method, is shown paying particular attention to the disadvantages, advantages, and characteristics features of this method, as well as to the formal requirements that are necessary to build this model. The tree’s building method for UZRGM (Universal Modernised Fuze of Hand Grenades) fuzes was characterized, specifying the features of the tested hand grenade fuzes and the predictors used that are necessary to create the correct tree model. A classification tree was built basing on the test results, assuming the accepted post-diagnostic decision as a qualitative dependent variable. A schema of the designed tree for the first diagnostic tests, its full structure and the size of individual classes of the node are shown. The matrix of incorrect classifications was determined, which determines the accuracy of incorrect predictions, i.e., correctness of the performed classification. A sheet with risk assessment and standard error for the learning sample and the v-fold cross-check were presented. On the selected examples, the quality of the resulting predictive model was assessed by means of a graph of the cumulative value of the lift coefficient and the "ROC" curve
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spelling doaj.art-b578a45260504da5a68c01dfe00610012022-12-22T03:57:18ZengMilitary University of Technology, Warsaw, PolandProblemy Mechatroniki2081-58912021-06-01122395410.5604/01.3001.0014.933201.3001.0014.9332Prediction of Post-Diagnostic Decisions for Tested Hand Grenades’ Fuzes Using Decision TreesDariusz AMPUŁA0Military Institute of Armament Technology, Zielonka, PolandThe article presents a brief history of creation of decision trees and defines the purpose of the undertaken works. The process of building a classification tree, according to the CHAID method, is shown paying particular attention to the disadvantages, advantages, and characteristics features of this method, as well as to the formal requirements that are necessary to build this model. The tree’s building method for UZRGM (Universal Modernised Fuze of Hand Grenades) fuzes was characterized, specifying the features of the tested hand grenade fuzes and the predictors used that are necessary to create the correct tree model. A classification tree was built basing on the test results, assuming the accepted post-diagnostic decision as a qualitative dependent variable. A schema of the designed tree for the first diagnostic tests, its full structure and the size of individual classes of the node are shown. The matrix of incorrect classifications was determined, which determines the accuracy of incorrect predictions, i.e., correctness of the performed classification. A sheet with risk assessment and standard error for the learning sample and the v-fold cross-check were presented. On the selected examples, the quality of the resulting predictive model was assessed by means of a graph of the cumulative value of the lift coefficient and the "ROC" curve http://promechjournal.pl/gicid/01.3001.0014.9332mechanical engineeringdecision treesbranchleafnodefeature
spellingShingle Dariusz AMPUŁA
Prediction of Post-Diagnostic Decisions for Tested Hand Grenades’ Fuzes Using Decision Trees
Problemy Mechatroniki
mechanical engineering
decision trees
branch
leaf
node
feature
title Prediction of Post-Diagnostic Decisions for Tested Hand Grenades’ Fuzes Using Decision Trees
title_full Prediction of Post-Diagnostic Decisions for Tested Hand Grenades’ Fuzes Using Decision Trees
title_fullStr Prediction of Post-Diagnostic Decisions for Tested Hand Grenades’ Fuzes Using Decision Trees
title_full_unstemmed Prediction of Post-Diagnostic Decisions for Tested Hand Grenades’ Fuzes Using Decision Trees
title_short Prediction of Post-Diagnostic Decisions for Tested Hand Grenades’ Fuzes Using Decision Trees
title_sort prediction of post diagnostic decisions for tested hand grenades fuzes using decision trees
topic mechanical engineering
decision trees
branch
leaf
node
feature
url http://promechjournal.pl/gicid/01.3001.0014.9332
work_keys_str_mv AT dariuszampuła predictionofpostdiagnosticdecisionsfortestedhandgrenadesfuzesusingdecisiontrees