0


深度学习与生存分析相结合的资产健康管理框架

A Framework of Combining Deep Learning and Survival Analysis for Asset Health Management
课程网址: https://videolectures.net/videos/kdd2016_liao_health_management  
主讲教师: Linxia Liao
开课单位: KDD 2016研讨会
开课时间: 2025-02-04
课程语种: 英语
中文简介:
我们提出了一种方法,通过将三层模型堆叠为深度学习结构,将特征提取和预测整合为一个优化任务。深层结构的第一层是长短期记忆(LSTM)模型,它处理来自一组资产的顺序输入数据。LSTM模型的输出之后是均值池,结果被馈送到第二层。第二层是神经网络层,它进一步学习特征表示。第二层的输出与生存模型相连,作为预测资产健康状况的第三层。通过随机梯度下降对三层模型的参数进行优化。所提出的方法在从采矿拖运卡车车队收集的小型数据集上进行了测试。该模型产生了用于评估每个单独资产健康状况的“个性化”故障概率表示,很好地将在用和故障卡车分开。所提出的方法也在大型开源硬盘数据集上进行了测试,并显示出有希望的结果。
课程简介: We propose a method to integrate feature extraction and prediction as a single optimization task by stacking a threelayer model as a deep learning structure. The first layer of the deep structure is a Long Short Term Memory (LSTM) model which deals with the sequential input data from a group of assets. The output of the LSTM model is followed by mean-pooling, and the result is fed to the second layer. The second layer is a neural network layer, which further learns the feature representation. The output of the second layer is connected to a survival model as the third layer for predicting asset health condition. The parameters of the three-layer model are optimized together via stochastic gradient decent. The proposed method was tested on a small dataset collected from a fleet of mining haul trucks. The model resulted in the “individualized” failure probability representation for assessing the health condition of each individual asset, which well separates the in-service and failed trucks. The proposed method was also tested on a large open source hard drive dataset, and it showed promising result.
关 键 词: 深度学习; 生存分析; 管理框架
课程来源: 视频讲座网
数据采集: 2025-03-11:liyq
最后编审: 2025-03-11:liyq
阅读次数: 3