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探索LLM特性在小规模事件日志预测过程监控中的应用

Exploring LLM Features in Predictive Process Monitoring for Small-Scale Event-Logs

University of Tartu(塔尔图大学)

Alessandro Padella, Massimiliano de Leoni, Marlon Dumas

AI总结:

本文提出基于LLM的预测过程监控方法,通过扩展框架评估其通用性、语义利用和推理能力,在小规模事件日志中实现了优于传统方法的预测性能。

摘要:

预测过程监控是过程挖掘的一个分支,旨在预测正在进行的过程的结果。最近,它利用了机器学习和深度学习架构。在本文中,我们扩展了先前基于LLM的预测过程监控框架,该框架最初专注于通过提示进行总时间预测。扩展部分包括全面评估其通用性、语义利用和推理机制,也涵盖了多个关键性能指标。在三个不同的事件日志上进行的实证评估,以及总时间和活动发生预测的关键性能指标上,表明在数据稀缺的设置中,仅使用100条轨迹时,LLM优于基准方法。此外,实验还显示,LLM利用了其内在的先验知识和训练轨迹之间的内部相关性。最后,我们检查了模型所采用的推理策略,证明LLM不仅复制现有的预测方法,还进行更高阶的推理以生成预测。

英文摘要:

Predictive Process Monitoring is a branch of process mining that aims to predict the outcome of an ongoing process. Recently, it leveraged machine-and-deep learning architectures. In this paper, we extend our prior LLM-based Predictive Process Monitoring framework, which was initially focused on total time prediction via prompting. The extension consists of comprehensively evaluating its generality, semantic leverage, and reasoning mechanisms, also across multiple Key Performance Indicators. Empirical evaluations conducted on three distinct event logs and across the Key Performance Indicators of Total Time and Activity Occurrence prediction indicate that, in data-scarce settings with only 100 traces, the LLM surpasses the benchmark methods. Furthermore, the experiments also show that the LLM exploits both its embodied prior knowledge and the internal correlations among training traces. Finally, we examine the reasoning strategies employed by the model, demonstrating that the LLM does not merely replicate existing predictive methods but performs higher-order reasoning to generate the predictions.

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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