Comments (4)
Hi @summa-code ,
- Ensure that your input data has a static batch size. When using stateful=True, the batch size should not change between batches. You can achieve this by padding or truncating sequences to a fixed length.
- When defining your LSTM layer, set stateful=True and specify the batch_input_shape parameter with a fixed batch size and sequence length.
example:
model.add(LSTM(units=64, batch_input_shape=(batch_size, sequence_length, input_dim), stateful=True))
- If you are using timeseries_dataset_from_array to prepare your data, make sure that all sequences have the same length. You can achieve this by setting the sequence_length parameter when creating the dataset.
example:
dataset = timeseries_dataset_from_array(data, targets, sequence_length=desired_length, batch_size=batch_size)
Thank you!
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So that was the working code, but after I updated to latest in fresh ubuntu install, "batch_input_shape" not a recognized attribute.
This is what I am getting
ValueError: Unrecognized keyword arguments passed to LSTM: {'batch_input_shape': (xxx, xxx, xxx)}
And yes, I am using sequence_length, please refer to timeseries example on this Tensorflow site.
https://www.tensorflow.org/tutorials/structured_data/time_series
from tensorflow.
Facing the exact same issue with tensorflow 2.16.1
and Python 3.9.16
from tensorflow.
Looks like either it is a bug or they got ride of the function, but either way, it is like a bug in how they configure the shape internally for statefulness. And also, there are no examples on how to use stateful LSTM in addition to lack of documentation on statefulness.
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