基于ACGAN的高可靠性时间序列数据生成方法
Fang Liu1, Yuxin Li1, Yuanfang Zheng1
1School of Information Science and Engineering, Shenyang Ligong University, Shenyang 110159, China.
Entropy (Basel, Switzerland)
|February 26, 2025
概括
本研究引入了高可靠性ACGAN (HR-ACGAN) 来生成工业故障诊断数据. 该方法增强了特征提取和数据可靠性,有效地解决了大数据处理中的小样本大小问题.
科学领域:
- 人工智能的人工智能
- 机器学习 机器学习
- 数据科学数据科学数据科学
背景情况:
- 大数据处理,特别是在工业故障诊断中,面临着小样本规模的挑战.
- 现有的生成对抗网络 (GAN) 方法经常忽视时间特征,导致特征提取不足,生成数据的可靠性低.
- 由于实际数据的类别差异较低,生成数据的重叠程度较高,进一步降低了可靠性.
研究的目的:
- 提出一种新的时间序列数据生成方法,即高可靠性ACGAN (HR-ACGAN),用于工业故障诊断.
- 通过结合时间特征来增强特征提取能力.
- 提高生成数据的可靠性和类别差异化.
主要方法:
- 将双向长短期存储器 (Bi-LSTM) 网络层集成到区分器中以捕获时间特征.
- 在生成器中设计了改进的训练目标功能,以最大限度地减少数据重叠并提高可靠性.
- 在两个代表性的工业故障数据集上进行应用和模拟分析.
主要成果:
- HR-ACGAN方法成功生成与真实数据高度相似的时间序列数据.
- 使用HR-ACGAN生成的数据扩展数据集,导致分类准确性的显著改善.
- 该方法有效地缓解了与工业故障诊断中的数据集不平衡相关的问题.
结论:
- 拟议的HR-ACGAN方法提供了一个可靠的解决方案,用于生成可靠的,高质量的合成数据,用于工业故障诊断.
- 整合时间动态和改进的培训目标提高了GAN对复杂时间序列数据的能力.
- HR-ACGAN为实际应用提供了有效的技术支持,特别是解决故障诊断中的数据稀缺问题.
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