Update README.md with new model card content
Browse files
README.md
CHANGED
|
@@ -1,18 +1,107 @@
|
|
| 1 |
---
|
| 2 |
library_name: keras-hub
|
| 3 |
---
|
| 4 |
-
|
| 5 |
-
|
| 6 |
-
|
| 7 |
-
|
| 8 |
-
|
| 9 |
-
|
| 10 |
-
|
| 11 |
-
|
| 12 |
-
|
| 13 |
-
|
| 14 |
-
|
| 15 |
-
|
| 16 |
-
|
| 17 |
-
|
| 18 |
-
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| 1 |
---
|
| 2 |
library_name: keras-hub
|
| 3 |
---
|
| 4 |
+
### Model Overview
|
| 5 |
+
⚠️ Whisper is currently only available via the `keras-hub-nightly` package. Use `pip install keras-hub-nightly` to try this model.
|
| 6 |
+
|
| 7 |
+
A Whisper encoder-decoder network for speech.
|
| 8 |
+
|
| 9 |
+
This class implements a Transformer-based encoder-decoder model as
|
| 10 |
+
described in
|
| 11 |
+
["Robust Speech Recognition via Large-Scale Weak Supervision"](https://arxiv.org/abs/2212.04356).
|
| 12 |
+
It includes the embedding lookups and transformer layers, but not the head
|
| 13 |
+
for predicting the next token.
|
| 14 |
+
|
| 15 |
+
The default constructor gives a fully customizable, randomly initialized Whisper
|
| 16 |
+
model with any number of layers, heads, and embedding dimensions. To load
|
| 17 |
+
preset architectures and weights, use the `from_preset()` constructor.
|
| 18 |
+
|
| 19 |
+
Disclaimer: Pre-trained models are provided on an "as is" basis, without
|
| 20 |
+
warranties or conditions of any kind. The underlying model is provided by a
|
| 21 |
+
third party and subject to a separate license, available
|
| 22 |
+
[here](https://github.com/openai/whisper).
|
| 23 |
+
|
| 24 |
+
|
| 25 |
+
__Arguments__
|
| 26 |
+
|
| 27 |
+
|
| 28 |
+
- __vocabulary_size__: int. The size of the token vocabulary.
|
| 29 |
+
- __num_layers__: int. The number of transformer encoder layers and
|
| 30 |
+
transformer decoder layers.
|
| 31 |
+
- __num_heads__: int. The number of attention heads for each transformer.
|
| 32 |
+
The hidden size must be divisible by the number of attention heads.
|
| 33 |
+
- __hidden_dim__: int. The size of the transformer encoding and pooler layers.
|
| 34 |
+
- __intermediate_dim__: int. The output dimension of the first Dense layer in
|
| 35 |
+
a two-layer feedforward network for each transformer.
|
| 36 |
+
- __num_mels__: int. The number of mel-frequency filters. Defaults to `80`.
|
| 37 |
+
- __dropout__: float. Dropout probability for the Transformer encoder.
|
| 38 |
+
- __max_encoder_sequence_length__: int. The maximum sequence length that the
|
| 39 |
+
audio encoder can consume. Since the second convolutional layer in
|
| 40 |
+
the encoder reduces the sequence length by half (stride of 2), we
|
| 41 |
+
use `max_encoder_sequence_length // 2` as the sequence length for the
|
| 42 |
+
positional embedding layer.
|
| 43 |
+
- __max_decoder_sequence_length__: int. The maximum sequence length that the
|
| 44 |
+
text decoder can consume.
|
| 45 |
+
|
| 46 |
+
### Example Usage
|
| 47 |
+
```python
|
| 48 |
+
import keras_hub
|
| 49 |
+
import keras_core as keras
|
| 50 |
+
import numpy as np
|
| 51 |
+
```
|
| 52 |
+
|
| 53 |
+
|
| 54 |
+
|
| 55 |
+
```python
|
| 56 |
+
input_data = {
|
| 57 |
+
"encoder_features": np.ones(shape=(1, 12, 80), dtype="int32"),
|
| 58 |
+
"decoder_token_ids": np.ones(shape=(1, 12), dtype="int32"),
|
| 59 |
+
"decoder_padding_mask": np.array(
|
| 60 |
+
[[1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0]]
|
| 61 |
+
),
|
| 62 |
+
}
|
| 63 |
+
|
| 64 |
+
# Randomly initialized Whisper encoder-decoder model with a custom config.
|
| 65 |
+
model = keras_hub.models.WhisperBackbone(
|
| 66 |
+
vocabulary_size=51864,
|
| 67 |
+
num_layers=4,
|
| 68 |
+
num_heads=4,
|
| 69 |
+
hidden_dim=256,
|
| 70 |
+
intermediate_dim=512,
|
| 71 |
+
max_encoder_sequence_length=128,
|
| 72 |
+
max_decoder_sequence_length=128,
|
| 73 |
+
)
|
| 74 |
+
model(input_data)
|
| 75 |
+
```
|
| 76 |
+
|
| 77 |
+
## Example Usage with Hugging Face URI
|
| 78 |
+
|
| 79 |
+
```python
|
| 80 |
+
import keras_hub
|
| 81 |
+
import keras_core as keras
|
| 82 |
+
import numpy as np
|
| 83 |
+
```
|
| 84 |
+
|
| 85 |
+
|
| 86 |
+
|
| 87 |
+
```python
|
| 88 |
+
input_data = {
|
| 89 |
+
"encoder_features": np.ones(shape=(1, 12, 80), dtype="int32"),
|
| 90 |
+
"decoder_token_ids": np.ones(shape=(1, 12), dtype="int32"),
|
| 91 |
+
"decoder_padding_mask": np.array(
|
| 92 |
+
[[1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0]]
|
| 93 |
+
),
|
| 94 |
+
}
|
| 95 |
+
|
| 96 |
+
# Randomly initialized Whisper encoder-decoder model with a custom config.
|
| 97 |
+
model = keras_hub.models.WhisperBackbone(
|
| 98 |
+
vocabulary_size=51864,
|
| 99 |
+
num_layers=4,
|
| 100 |
+
num_heads=4,
|
| 101 |
+
hidden_dim=256,
|
| 102 |
+
intermediate_dim=512,
|
| 103 |
+
max_encoder_sequence_length=128,
|
| 104 |
+
max_decoder_sequence_length=128,
|
| 105 |
+
)
|
| 106 |
+
model(input_data)
|
| 107 |
+
```
|