We address the problem of predicting the occurrence of infrequent adverse events in the context of predictive maintenance. We cast the corresponding machine learning task as an imbalanced classification problem and propose a framework for solving it that is capable of leveraging different classifiers in order to predict the occurrence of an adverse event before it takes place. In particular, we focus on two applications arising in low-carbon energy production: foam formation in anaerobic digestion and condenser tube leakage in the steam turbines of a nuclear power station. The results of an extensive set of omputational experiments show the effectiveness of the techniques that we propose.
翻译:我们从预测性维护的角度处理预测不经常发生不利事件的问题,我们把相应的机器学习任务作为一个不平衡的分类问题,并提出一个能够利用不同分类人员解决该问题的框架,以便预测发生不利事件之前的发生情况,特别是,我们侧重于低碳能源生产中产生的两个应用:在核电站蒸气涡轮机中形成厌氧消化泡沫和冷凝管渗漏。 一系列广泛的截肢实验的结果显示了我们提出的技术的有效性。