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arXiv 2004.08492stat.COstat.ME
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轨道:指数平滑概率预报

Orbit: Probabilistic Forecast with Exponential Smoothing

Edwin Ng, Zhishi Wang, Huigang Chen, Steve Yang, Slawek Smyl

摘要:

时间序列预测是学术界和工业界的一个活跃的研究课题。虽然我们看到越来越多的机器学习方法被用于解决其中一些预测挑战,但统计方法在处理低粒度数据时仍然很强大。本文介绍了一种改进的贝叶斯指数平滑模型的帮助下,概率编程语言,包括斯坦。我们的模型改进包括额外的全球趋势,乘法形式的转换,噪声分布和先验的选择。一个基准研究进行了一组丰富的时间序列数据集,我们的模型以及其他知名的时间序列模型。

英文摘要:

Time series forecasting is an active research topic in academia as well as industry. Although we see an increasing amount of adoptions of machine learning methods in solving some of those forecasting challenges, statistical methods remain powerful while dealing with low granularity data. This paper introduces a refined Bayesian exponential smoothing model with the help of probabilistic programming languages including Stan. Our model refinements include additional global trend, transformation for multiplicative form, noise distribution and choice of priors. A benchmark study is conducted on a rich set of time-series data sets for our models along with other well-known time series models.

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。

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