作者
Chuyao Luo, Xinyue Zhao, Yuxi Sun, Xutao Li, Yunming Ye
发表日期
2022/3/5
期刊
Knowledge-Based Systems
卷号
239
页码范围
107900
出版商
Elsevier
简介
Precipitation nowcasting is an important task in the fields of transportation, traffic, agriculture, and tourism. One of the main challenges is radar echo maps forecasting. It is regarded as a spatiotemporal sequence prediction problem. The prevailing approaches including the state-of-the-art methods are all based on the ConvRNN which combines the Convolution Neural Network (CNN) and Recurrent Neural Network (RNN). However, the feature flow delivered in multi-layer CNNs and RNN usually accompanies the information loss. Therefore, these algorithms fail to model the long-term dependency and the heavy rainfalls tend to be underestimated. In addition, they cannot predict the increasing intensity trend of heavy rainfalls. In this paper, we propose a PredRANN model by embedding the Temporal Attention Module (TAM) and Layer Attention Module (LAM) into the prediction unit to preserve more representation …
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