arXivDaily arXiv每日学术速递 周一至周五更新
arXiv周末暂无论文更新,休息一下吧,周末愉快~~
arXiv 2204.09640stat.MLcs.LG
收藏

用于精确长期预测的概率自回归神经网络

Probabilistic AutoRegressive Neural Networks for Accurate Long-range Forecasting

International Institute of Information Technology Bangalore(班加罗尔国际信息技术学院);Sorbonne University Abu Dhabi(索邦大学阿布扎比分校)

Madhurima Panja, Tanujit Chakraborty, Uttam Kumar, Abdenour Hadid

AI总结:

本文提出概率自回归神经网络 PARNN,通过引入 ARIMA 反馈误差改进 ARNN,并结合预测区间实现不确定性量化,在多个真实数据集上超越 Transformers、NBeats 和 DeepAR 等模型,实现精确长期预测。

摘要:

时间序列数据预测是一个关键的研究领域,其应用范围涵盖股票价格到早期流行病预测。尽管已经提出了大量统计和机器学习方法,但现实生活中的预测问题通常需要将经典预测方法与现代神经网络模型相结合的混合解决方案。在本研究中,我们提出了概率自回归神经网络(Probabilistic AutoRegressive Neural Networks,PARNN),能够处理表现出非平稳性、非线性、非季节性、长程依赖性和混沌模式的复杂时间序列数据。PARNN 通过使用自回归积分滑动平均(ARIMA)反馈误差改进自回归神经网络(ARNN)而构建,结合了两种模型的可解释性、可扩展性和“类白箱”预测行为。值得注意的是,PARNN 模型通过预测区间提供不确定性量化,使其区别于先进的深度学习工具。通过全面的计算实验,我们将 PARNN 的性能与标准统计、机器学习和深度学习模型(包括 Transformers、NBeats 和 DeepAR)进行了评估比较。来自宏观经济学、旅游业、流行病学和其他领域的多种真实世界数据集被用于短期、中期和长期预测评估。我们的结果表明 PARNN 在各种预测时域上均具有优越性,超越了最先进的预测器。所提出的 PARNN 模型为精确长期预测提供了一种有价值的混合解决方案。通过有效捕捉时间序列数据中存在的复杂性,它在准确性和可靠性方面优于现有方法。通过预测区间量化不确定性的能力进一步增强了该模型在决策过程中的实用性。

英文摘要:

Forecasting time series data is a critical area of research with applications spanning from stock prices to early epidemic prediction. While numerous statistical and machine learning methods have been proposed, real-life prediction problems often require hybrid solutions that bridge classical forecasting approaches and modern neural network models. In this study, we introduce the Probabilistic AutoRegressive Neural Networks (PARNN), capable of handling complex time series data exhibiting non-stationarity, nonlinearity, non-seasonality, long-range dependence, and chaotic patterns. PARNN is constructed by improving autoregressive neural networks (ARNN) using autoregressive integrated moving average (ARIMA) feedback error, combining the explainability, scalability, and "white-box-like" prediction behavior of both models. Notably, the PARNN model provides uncertainty quantification through prediction intervals, setting it apart from advanced deep learning tools. Through comprehensive computational experiments, we evaluate the performance of PARNN against standard statistical, machine learning, and deep learning models, including Transformers, NBeats, and DeepAR. Diverse real-world datasets from macroeconomics, tourism, epidemiology, and other domains are employed for short-term, medium-term, and long-term forecasting evaluations. Our results demonstrate the superiority of PARNN across various forecast horizons, surpassing the state-of-the-art forecasters. The proposed PARNN model offers a valuable hybrid solution for accurate long-range forecasting. By effectively capturing the complexities present in time series data, it outperforms existing methods in terms of accuracy and reliability. The ability to quantify uncertainty through prediction intervals further enhances the model's usefulness in decision-making processes.

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。

↑