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arXiv 2204.13293cs.LGcs.AI
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风电和光伏发电预测中迁移学习的模型选择、自适应和组合

Model Selection, Adaptation, and Combination for Transfer Learning in Wind and Photovoltaic Power Forecasts

University of Kassel(卡塞尔大学)

Jens Schreiber, Bernhard Sick

摘要:

最近人们对在计算机视觉任务中使用模型中心(一组预先训练的模型)很感兴趣。为了利用模型中心,我们首先选择一个源模型,然后调整目标模型以补偿差异。虽然对于计算机视觉任务的模型选择和自适应的研究还很有限,但这对于可再生能源领域来说更是如此。与此同时,根据数值天气预报的天气特征为日益增长的电力预报需求提供预报是一个关键的挑战。我们通过对可再生能源预测中的迁移学习进行模型选择和适应的第一次彻底实验来缩小这些差距,采用了667个风能和光伏园区的计算机视觉领域的最新成果。据我们所知,这使得它成为可再生能源预测中最广泛的迁移学习研究,减少了计算工作量,改善了预测误差。因此,我们采用基于不同季节的目标数据的源模型,并限制训练数据的量。作为现有技术的扩展,我们利用贝叶斯线性回归预测响应的基础上提取的神经网络的功能。该方法优于仅使用七天训练数据的基线。我们进一步展示了如何通过集成组合多个模型可以显着改善模型选择和自适应方法。

英文摘要:

There is recent interest in using model hubs, a collection of pre-trained models, in computer vision tasks. To utilize the model hub, we first select a source model and then adapt the model for the target to compensate for differences. While there is yet limited research on model selection and adaption for computer vision tasks, this holds even more for the field of renewable power. At the same time, it is a crucial challenge to provide forecasts for the increasing demand for power forecasts based on weather features from a numerical weather prediction. We close these gaps by conducting the first thorough experiment for model selection and adaptation for transfer learning in renewable power forecast, adopting recent results from the field of computer vision on 667 wind and photovoltaic parks. To the best of our knowledge, this makes it the most extensive study for transfer learning in renewable power forecasts reducing the computational effort and improving the forecast error. Therefore, we adopt source models based on target data from different seasons and limit the amount of training data. As an extension of the current state of the art, we utilize a Bayesian linear regression for forecasting the response based on features extracted from a neural network. This approach outperforms the baseline with only seven days of training data. We further show how combining multiple models through ensembles can significantly improve the model selection and adaptation approach.

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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