C-MAPSS dataset的Scoring function 函数

C-MAPSS数据集中的Scoring function函数是用来计算发动机寿命的。该函数使用以下公式：

RUL = TTF - TT

其中，RUL代表剩余使用寿命，TTF代表故障时间，TT代表历史使用时间。该函数通过比较预测的剩余寿命和实际寿命来评估模型的性能。具体而言，该函数计算预测剩余寿命和实际寿命之间的均方根误差（RMSE）和平均绝对误差（MAE）。较低的RMSE和MAE值表示模型预测的剩余寿命与实际寿命更接近，因此表明该模型具有更好的性能。

相关问题

C-MAPSS dataset

The C-MAPSS dataset (Commercial Modular Aero-Propulsion System Simulation) is a widely used benchmark dataset for prognostics and health management (PHM) research in the field of aviation. It was originally developed by NASA to support research in the areas of fault diagnosis, prognostics, and remaining useful life (RUL) estimation for aircraft engines.

The dataset contains sensor measurements and operational data from a fleet of commercial turbofan engines, which were operated under different conditions and subjected to various types of faults and failures. The dataset includes four different sub-datasets, each representing a different engine model and covering different levels of fault severity.

The C-MAPSS dataset has been widely used by researchers and practitioners to develop and evaluate various PHM techniques, including data-driven and model-based approaches for fault detection, diagnosis, and RUL estimation. It has also been used to compare the performance of different PHM methods and to benchmark different algorithms and techniques in the field.

Overall, the C-MAPSS dataset has played a critical role in advancing the state of the art in PHM research for aircraft engines and has contributed to improving the safety, reliability, and efficiency of commercial aviation.