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fix(dataflow): correct target sequence definition in data loader

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game-loader
2025-08-27 15:58:04 +08:00
parent b7e8960fed
commit 4129832f98
1 changed files with 19 additions and 6 deletions
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25
dataflow/data_loader.py
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@ -79,15 +79,21 @@ class Dataset_ETT_hour(Dataset):
self.data_stamp = data_stamp
def __getitem__(self, index):
# 1. 定义输入序列 seq_x 的起止位置
s_begin = index
s_end = s_begin + self.seq_len
r_begin = s_end - self.label_len
r_end = r_begin + self.label_len + self.pred_len
# 2. 定义目标序列 seq_y 的起止位置
# seq_y 的开始 (r_begin) 就是 seq_x 的结束 (s_end)
r_begin = s_end
# seq_y 的结束 (r_end) 是其开始位置加上预测长度 (pred_len)
r_end = r_begin + self.pred_len
# 3. 根据起止位置切片数据
seq_x = self.data_x[s_begin:s_end]
seq_y = self.data_y[r_begin:r_end]
seq_x_mark = self.data_stamp[s_begin:s_end]
seq_y_mark = self.data_stamp[r_begin:r_end]
seq_x = seq_x.astype('float32')
seq_y = seq_y.astype('float32')
return seq_x, seq_y, seq_x_mark, seq_y_mark
@ -169,15 +175,22 @@ class Dataset_ETT_minute(Dataset):
self.data_stamp = data_stamp
def __getitem__(self, index):
# 1. 定义输入序列 seq_x 的起止位置
s_begin = index
s_end = s_begin + self.seq_len
r_begin = s_end - self.label_len
r_end = r_begin + self.label_len + self.pred_len
# 2. 定义目标序列 seq_y 的起止位置
# seq_y 的开始 (r_begin) 就是 seq_x 的结束 (s_end)
r_begin = s_end
# seq_y 的结束 (r_end) 是其开始位置加上预测长度 (pred_len)
r_end = r_begin + self.pred_len
# 3. 根据起止位置切片数据
seq_x = self.data_x[s_begin:s_end]
seq_y = self.data_y[r_begin:r_end]
seq_x_mark = self.data_stamp[s_begin:s_end]
seq_y_mark = self.data_stamp[r_begin:r_end]
seq_x = seq_x.astype('float32')
seq_y = seq_y.astype('float32')
return seq_x, seq_y, seq_x_mark, seq_y_mark