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chencodeX / Rnn_pytorch

Using the Pytorch to build an image temporal prediction model of the encoder-forecaster structure, ConvGRU kernel & ConvLSTM kernel

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RNN_Pytorch

使用pytorch框架搭建一个encoder-forecaster结构的图像时序预测模型,ConvGRU内核

##文件说明

BMSELoss.py 一个对不同降雨级别进行加权损失的loss函数。
ConvGRUCell.py 利用卷积操作实现的ConvGRU内核,单Cell
ConvLSTM.py 利用卷积操作实现的ConvLSTM内核,包含了单Cell,多层Cell的实现方式,以及一个实验用的RNN模型
encoder.py 序列编码结构
forecaster.py 序列预测结构
HKO_EF.py 尝试一个试验性质的训练方式
HKO_model.py HKO-7模型的搭建和训练
RNN.py 一般的RNN模型
RNN_train.py RNN模型的训练

##模型说明

本项目参考的HKO模型为论文  [Deep learning for precipitation nowcasting: A benchmark and a new model](http://papers.nips.cc/paper/7145-deep-learning-for-precipitation-nowcasting-a-benchmark-and-a-new-model)
encoder和forecaster 结构皆参照此论文编写
本文的数据样本原始大为20*1*477*477,训练过程中会缩放或随机切割到120*120大小。
原始数据为0-70之间的DBz值,在输入网络前已经映射到(0-255)/255.所以代码中的BMSELoss的阈值也经过了调整。

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