Leveraging a Heterogeneous Ensemble Learning for Outcome-Based Predictive Monitoring Using Business Process Event Logs

Outcome-based predictive process monitoring concerns predicting the outcome of a running process case using historical events stored as so-called process event logs. This prediction problem has been approached using different learning models in the literature. Ensemble learners have been shown to be...

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Main Authors: Bayu Adhi Tama, Marco Comuzzi
Format: Article
Language:English
Published: MDPI AG 2022-08-01
Series:Electronics
Subjects:
Online Access:https://www.mdpi.com/2079-9292/11/16/2548
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author Bayu Adhi Tama
Marco Comuzzi
author_facet Bayu Adhi Tama
Marco Comuzzi
author_sort Bayu Adhi Tama
collection DOAJ
description Outcome-based predictive process monitoring concerns predicting the outcome of a running process case using historical events stored as so-called process event logs. This prediction problem has been approached using different learning models in the literature. Ensemble learners have been shown to be particularly effective in outcome-based business process predictive monitoring, even when compared with learners exploiting complex deep learning architectures. However, the ensemble learners that have been used in the literature rely on weak base learners, such as decision trees. In this article, an advanced stacking ensemble technique for outcome-based predictive monitoring is introduced. The proposed stacking ensemble employs strong learners as base classifiers, i.e., other ensembles. More specifically, we consider stacking of random forests, extreme gradient boosting machines, and gradient boosting machines to train a process outcome prediction model. We evaluate the proposed approach using publicly available event logs. The results show that the proposed model is a promising approach for the outcome-based prediction task. We extensively compare the performance differences among the proposed methods and the base strong learners, using also statistical tests to prove the generalizability of the results obtained.
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spelling doaj.art-a2edd39542a9402786e19f0d38b0252a2023-12-03T13:34:22ZengMDPI AGElectronics2079-92922022-08-011116254810.3390/electronics11162548Leveraging a Heterogeneous Ensemble Learning for Outcome-Based Predictive Monitoring Using Business Process Event LogsBayu Adhi Tama0Marco Comuzzi1Department of Information Systems, University of Maryland, Baltimore County (UMBC), MD 21250, USADepartment of Industrial Engineering, Ulsan National Institute of Science and Technology, Ulsan 44919, KoreaOutcome-based predictive process monitoring concerns predicting the outcome of a running process case using historical events stored as so-called process event logs. This prediction problem has been approached using different learning models in the literature. Ensemble learners have been shown to be particularly effective in outcome-based business process predictive monitoring, even when compared with learners exploiting complex deep learning architectures. However, the ensemble learners that have been used in the literature rely on weak base learners, such as decision trees. In this article, an advanced stacking ensemble technique for outcome-based predictive monitoring is introduced. The proposed stacking ensemble employs strong learners as base classifiers, i.e., other ensembles. More specifically, we consider stacking of random forests, extreme gradient boosting machines, and gradient boosting machines to train a process outcome prediction model. We evaluate the proposed approach using publicly available event logs. The results show that the proposed model is a promising approach for the outcome-based prediction task. We extensively compare the performance differences among the proposed methods and the base strong learners, using also statistical tests to prove the generalizability of the results obtained.https://www.mdpi.com/2079-9292/11/16/2548ensemble learningevent logsstackingprocess monitoring
spellingShingle Bayu Adhi Tama
Marco Comuzzi
Leveraging a Heterogeneous Ensemble Learning for Outcome-Based Predictive Monitoring Using Business Process Event Logs
Electronics
ensemble learning
event logs
stacking
process monitoring
title Leveraging a Heterogeneous Ensemble Learning for Outcome-Based Predictive Monitoring Using Business Process Event Logs
title_full Leveraging a Heterogeneous Ensemble Learning for Outcome-Based Predictive Monitoring Using Business Process Event Logs
title_fullStr Leveraging a Heterogeneous Ensemble Learning for Outcome-Based Predictive Monitoring Using Business Process Event Logs
title_full_unstemmed Leveraging a Heterogeneous Ensemble Learning for Outcome-Based Predictive Monitoring Using Business Process Event Logs
title_short Leveraging a Heterogeneous Ensemble Learning for Outcome-Based Predictive Monitoring Using Business Process Event Logs
title_sort leveraging a heterogeneous ensemble learning for outcome based predictive monitoring using business process event logs
topic ensemble learning
event logs
stacking
process monitoring
url https://www.mdpi.com/2079-9292/11/16/2548
work_keys_str_mv AT bayuadhitama leveragingaheterogeneousensemblelearningforoutcomebasedpredictivemonitoringusingbusinessprocesseventlogs
AT marcocomuzzi leveragingaheterogeneousensemblelearningforoutcomebasedpredictivemonitoringusingbusinessprocesseventlogs