我得到了形状可变长度（seq_len）的序列。我想创建批次，以使每个批次的总序列长度（seq_len1 + seq_len2 + ...）不超过某个值。如何在Tensorflow中使用数据集api创建它？
例如在改组序列之后...
x1 = [1,2,3] (seq_len = 3)
x2 = [3,4,5,6,7] (seq_len = 5)
x3 = [4,5,6,7,8,9,5,8] (seq_len = 8)
x4 = [1,7,3] (seq_len = 3)
x5 = [6,7,8] (seq_len = 3)
x6 = [5,6,7,8] (seq_len = 4)
.
.
batch_size len = 10 (lets say)
batch1 = [x1,x2] (8<10)
batch2 = [x3] (8<10)
batch3 = [x4,x5,x6] (10=10)
谢谢