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arXiv 2202.11985cs.LG
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深度神经网络可以学习流程模型结构吗?评估框架和分析

Can deep neural networks learn process model structure? An assessment framework and analysis

KU Leuven(鲁汶大学);Ghent University(根特大学)

Jari Peeperkorn, Seppe vanden Broucke, Jochen De Weerdt

摘要:

预测性流程监控关注的是对(业务)流程中正在进行的案例的预测。预测任务通常集中在剩余时间,结果,下一个事件或完整的情况下后缀预测。近年来,针对这些任务提出了各种使用机器和深度学习的方法。特别是诸如长短期记忆网络(LSTM)的递归神经网络(RNN)已经变得流行。但是,没有研究关注这种基于神经网络的模型是否能够真正学习底层过程模型的结构。例如,这样的神经网络能有效地学习并行行为或循环吗?因此,在这项工作中,我们提出了一个评估方案,补充了新的健身,精度和泛化指标,专门针对测量深度学习模型学习过程模型结构的能力。我们将这个框架应用到几个简单的控制流行为的过程模型,下一个事件预测的任务。我们的研究结果表明,即使是这样简单的模型,仔细调整过拟合对策,需要让这些模型学习过程模型结构。

英文摘要:

Predictive process monitoring concerns itself with the prediction of ongoing cases in (business) processes. Prediction tasks typically focus on remaining time, outcome, next event or full case suffix prediction. Various methods using machine and deep learning havebeen proposed for these tasks in recent years. Especially recurrent neural networks (RNNs) such as long short-term memory nets (LSTMs) have gained in popularity. However, no research focuses on whether such neural network-based models can truly learn the structure of underlying process models. For instance, can such neural networks effectively learn parallel behaviour or loops? Therefore, in this work, we propose an evaluation scheme complemented with new fitness, precision, and generalisation metrics, specifically tailored towards measuring the capacity of deep learning models to learn process model structure. We apply this framework to several process models with simple control-flow behaviour, on the task of next-event prediction. Our results show that, even for such simplistic models, careful tuning of overfitting countermeasures is required to allow these models to learn process model structure.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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