P ^3 -Folder: Optimal Model Simplification for Improving Accuracy in Process Performance Prediction
P ^3 -Folder: Optimal Model Simplification for Improving Accuracy in Process Performance Prediction
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P ^3 -文件夹:用于提高过程性能预测准确性的最佳模型简化
DOI:
10.1007/978-3-319-45348-4_24
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发表时间:
2016
期刊:
影响因子:
--
通讯作者:
Avishai Mandelbaum
中科院分区:
文献类型:
--
作者:
Arik Senderovich;Alexander Shleyfman;Matthias Weidlich;Avigdor Gal;Avishai Mandelbaum
Operational process models such as generalised stochastic Petri nets (GSPNs) are useful when answering performance queries on business processes (e.g. ‘how long will it take for a case to finish?’). Recently, methods for process mining have been developed to discover and enrich operational models based on a log of recorded executions of processes, which enables evidence-based process analysis. To avoid a bias due to infrequent execution paths, discovery algorithms strive for a balance between over-fitting and under-fitting regarding the originating log. However, state-of-the-art discovery algorithms address this balance solely for the control-flow dimension, neglecting possible over-fitting in terms of performance annotations. In this work, we thus offer a technique for performance-driven model reduction of GSPNs, using structural simplification rules. Each rule induces an error in performance estimates with respect to the original model. However, we show that this error is bounded and that the reduction in model parameters incurred by the simplification rules increases the accuracy of process performance prediction. We further show how to find an optimal sequence of applying simplification rules to obtain a minimal model under a given error budget for the performance estimates. We evaluate the approach with a real-world case in the healthcare domain, showing that model simplification indeed yields significant improvements in time prediction accuracy.
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DOI:
--
发表时间:
2001
期刊:
影响因子:
--
作者:
L. Zerguini
通讯作者:
L. Zerguini
影响因子:
6
作者:
S. Leemans;Dirk Fahland;Wil M.P. van der Aalst
通讯作者:
S. Leemans;Dirk Fahland;Wil M.P. van der Aalst
DOI:
--
发表时间:
2003
期刊:
IEEE International Conference on Formal Engineering Methods
影响因子:
--
作者:
J. Freiheit;J. Billington
通讯作者:
J. Billington
DOI:
--
发表时间:
2015
期刊:
International Conference on Business Process Management
影响因子:
--
作者:
Arik Senderovich;Andreas Rogge;A. Gal;J. Mendling;A. Mandelbaum;S. Kadish;C. Bunnell
通讯作者:
C. Bunnell
DOI:
10.1109/pnpm.1991.238781
发表时间:
1991
期刊:
Proceedings of the Fourth International Workshop on Petri Nets and Performance Models PNPM91
影响因子:
--
作者:
C. Woodside;Yao Li
通讯作者:
Yao Li