Replace with clean markdown card
Browse files
README.md
CHANGED
|
@@ -13,13 +13,12 @@ tags:
|
|
| 13 |
|
| 14 |
# SyncNet
|
| 15 |
|
| 16 |
-
Synchronization Network (SyncNet) from Li, Y et al (2017) .
|
| 17 |
|
| 18 |
-
> **Architecture-only repository.**
|
| 19 |
> `braindecode.models.SyncNet` class. **No pretrained weights are
|
| 20 |
-
> distributed here**
|
| 21 |
-
> data
|
| 22 |
-
> separately.
|
| 23 |
|
| 24 |
## Quick start
|
| 25 |
|
|
@@ -38,159 +37,44 @@ model = SyncNet(
|
|
| 38 |
)
|
| 39 |
```
|
| 40 |
|
| 41 |
-
The signal-shape arguments above are
|
| 42 |
-
|
| 43 |
|
| 44 |
## Documentation
|
| 45 |
-
|
| 46 |
-
-
|
| 47 |
-
<https://braindecode.org/stable/generated/braindecode.models.SyncNet.html>
|
| 48 |
-
- Interactive browser with live instantiation:
|
| 49 |
<https://huggingface.co/spaces/braindecode/model-explorer>
|
| 50 |
- Source on GitHub: <https://github.com/braindecode/braindecode/blob/master/braindecode/models/syncnet.py#L14>
|
| 51 |
|
| 52 |
-
## Architecture description
|
| 53 |
-
|
| 54 |
-
The block below is the rendered class docstring (parameters,
|
| 55 |
-
references, architecture figure where available).
|
| 56 |
-
|
| 57 |
-
<div class='bd-doc'><main>
|
| 58 |
-
<p>Synchronization Network (SyncNet) from Li, Y et al (2017) [Li2017]_.</p>
|
| 59 |
-
<span style="display:inline-block;padding:2px 8px;border-radius:4px;background:#E69F00;color:white;font-size:11px;font-weight:600;margin-right:4px;">Interpretability</span>
|
| 60 |
-
|
| 61 |
-
|
| 62 |
-
|
| 63 |
-
.. figure:: https://braindecode.org/dev/_static/model/SyncNet.png
|
| 64 |
-
:align: center
|
| 65 |
-
:alt: SyncNet Architecture
|
| 66 |
-
|
| 67 |
-
SyncNet uses parameterized 1-dimensional convolutional filters inspired by
|
| 68 |
-
the Morlet wavelet to extract features from EEG signals. The filters are
|
| 69 |
-
dynamically generated based on learnable parameters that control the
|
| 70 |
-
oscillation and decay characteristics.
|
| 71 |
-
|
| 72 |
-
The filter for channel ``c`` and filter ``k`` is defined as:
|
| 73 |
-
|
| 74 |
-
.. math::
|
| 75 |
-
|
| 76 |
-
f_c^{(k)}(\\tau) = amplitude_c^{(k)} \\cos(\\omega^{(k)} \\tau + \\phi_c^{(k)}) \\exp(-\\beta^{(k)} \\tau^2)
|
| 77 |
-
|
| 78 |
-
where:
|
| 79 |
-
- :math:`amplitude_c^{(k)}` is the amplitude parameter (channel-specific).
|
| 80 |
-
- :math:`\\omega^{(k)}` is the frequency parameter (shared across channels).
|
| 81 |
-
- :math:`\\phi_c^{(k)}` is the phase shift (channel-specific).
|
| 82 |
-
- :math:`\\beta^{(k)}` is the decay parameter (shared across channels).
|
| 83 |
-
- :math:`\\tau` is the time index.
|
| 84 |
-
|
| 85 |
-
Parameters
|
| 86 |
-
----------
|
| 87 |
-
num_filters : int, optional
|
| 88 |
-
Number of filters in the convolutional layer. Default is 1.
|
| 89 |
-
filter_width : int, optional
|
| 90 |
-
Width of the convolutional filters. Default is 40.
|
| 91 |
-
pool_size : int, optional
|
| 92 |
-
Size of the pooling window. Default is 40.
|
| 93 |
-
activation : nn.Module, optional
|
| 94 |
-
Activation function to apply after pooling. Default is ``nn.ReLU``.
|
| 95 |
-
ampli_init_values : tuple of float, optional
|
| 96 |
-
The initialization range for amplitude parameter using uniform
|
| 97 |
-
distribution. Default is (-0.05, 0.05).
|
| 98 |
-
omega_init_values : tuple of float, optional
|
| 99 |
-
The initialization range for omega parameters using uniform
|
| 100 |
-
distribution. Default is (0, 1).
|
| 101 |
-
beta_init_values : tuple of float, optional
|
| 102 |
-
The initialization range for beta (decay) parameters using uniform
|
| 103 |
-
distribution. Default is (0, 0.05).
|
| 104 |
-
phase_init_values : tuple of float, optional
|
| 105 |
-
The initialization mean and standard deviation for phase
|
| 106 |
-
parameters using normal distribution. Default is (0, 0.05).
|
| 107 |
-
|
| 108 |
-
|
| 109 |
-
Notes
|
| 110 |
-
-----
|
| 111 |
-
This implementation is not guaranteed to be correct! it has not been checked
|
| 112 |
-
by original authors. The modifications are based on derivated code from
|
| 113 |
-
[CodeICASSP2025]_.
|
| 114 |
-
|
| 115 |
-
|
| 116 |
-
References
|
| 117 |
-
----------
|
| 118 |
-
.. [Li2017] Li, Y., Dzirasa, K., Carin, L., & Carlson, D. E. (2017).
|
| 119 |
-
Targeting EEG/LFP synchrony with neural nets. Advances in neural
|
| 120 |
-
information processing systems, 30.
|
| 121 |
-
.. [CodeICASSP2025] Code from Baselines for EEG-Music Emotion Recognition
|
| 122 |
-
Grand Challenge at ICASSP 2025.
|
| 123 |
-
https://github.com/SalvoCalcagno/eeg-music-challenge-icassp-2025-baselines
|
| 124 |
-
|
| 125 |
-
.. rubric:: Hugging Face Hub integration
|
| 126 |
-
|
| 127 |
-
When the optional ``huggingface_hub`` package is installed, all models
|
| 128 |
-
automatically gain the ability to be pushed to and loaded from the
|
| 129 |
-
Hugging Face Hub. Install with::
|
| 130 |
-
|
| 131 |
-
pip install braindecode[hub]
|
| 132 |
-
|
| 133 |
-
**Pushing a model to the Hub:**
|
| 134 |
-
|
| 135 |
-
.. code::
|
| 136 |
-
from braindecode.models import SyncNet
|
| 137 |
-
|
| 138 |
-
# Train your model
|
| 139 |
-
model = SyncNet(n_chans=22, n_outputs=4, n_times=1000)
|
| 140 |
-
# ... training code ...
|
| 141 |
-
|
| 142 |
-
# Push to the Hub
|
| 143 |
-
model.push_to_hub(
|
| 144 |
-
repo_id="username/my-syncnet-model",
|
| 145 |
-
commit_message="Initial model upload",
|
| 146 |
-
)
|
| 147 |
-
|
| 148 |
-
**Loading a model from the Hub:**
|
| 149 |
-
|
| 150 |
-
.. code::
|
| 151 |
-
from braindecode.models import SyncNet
|
| 152 |
-
|
| 153 |
-
# Load pretrained model
|
| 154 |
-
model = SyncNet.from_pretrained("username/my-syncnet-model")
|
| 155 |
-
|
| 156 |
-
# Load with a different number of outputs (head is rebuilt automatically)
|
| 157 |
-
model = SyncNet.from_pretrained("username/my-syncnet-model", n_outputs=4)
|
| 158 |
-
|
| 159 |
-
**Extracting features and replacing the head:**
|
| 160 |
|
| 161 |
-
|
| 162 |
-
import torch
|
| 163 |
|
| 164 |
-
|
| 165 |
-
# Extract encoder features (consistent dict across all models)
|
| 166 |
-
out = model(x, return_features=True)
|
| 167 |
-
features = out["features"]
|
| 168 |
|
| 169 |
-
# Replace the classification head
|
| 170 |
-
model.reset_head(n_outputs=10)
|
| 171 |
|
| 172 |
-
|
| 173 |
|
| 174 |
-
|
| 175 |
-
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| 176 |
|
| 177 |
-
config = model.get_config() # all __init__ params
|
| 178 |
-
with open("config.json", "w") as f:
|
| 179 |
-
json.dump(config, f)
|
| 180 |
|
| 181 |
-
|
| 182 |
|
| 183 |
-
|
| 184 |
-
|
| 185 |
-
saved to the Hub and restored when loading.
|
| 186 |
|
| 187 |
-
See :ref:`load-pretrained-models` for a complete tutorial.</main>
|
| 188 |
-
</div>
|
| 189 |
|
| 190 |
## Citation
|
| 191 |
|
| 192 |
-
|
| 193 |
-
*References* section above) and braindecode:
|
| 194 |
|
| 195 |
```bibtex
|
| 196 |
@article{aristimunha2025braindecode,
|
|
|
|
| 13 |
|
| 14 |
# SyncNet
|
| 15 |
|
| 16 |
+
Synchronization Network (SyncNet) from Li, Y et al (2017) [Li2017].
|
| 17 |
|
| 18 |
+
> **Architecture-only repository.** Documents the
|
| 19 |
> `braindecode.models.SyncNet` class. **No pretrained weights are
|
| 20 |
+
> distributed here.** Instantiate the model and train it on your own
|
| 21 |
+
> data.
|
|
|
|
| 22 |
|
| 23 |
## Quick start
|
| 24 |
|
|
|
|
| 37 |
)
|
| 38 |
```
|
| 39 |
|
| 40 |
+
The signal-shape arguments above are illustrative defaults — adjust to
|
| 41 |
+
match your recording.
|
| 42 |
|
| 43 |
## Documentation
|
| 44 |
+
- Full API reference: <https://braindecode.org/stable/generated/braindecode.models.SyncNet.html>
|
| 45 |
+
- Interactive browser (live instantiation, parameter counts):
|
|
|
|
|
|
|
| 46 |
<https://huggingface.co/spaces/braindecode/model-explorer>
|
| 47 |
- Source on GitHub: <https://github.com/braindecode/braindecode/blob/master/braindecode/models/syncnet.py#L14>
|
| 48 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| 49 |
|
| 50 |
+
## Architecture
|
|
|
|
| 51 |
|
| 52 |
+

|
|
|
|
|
|
|
|
|
|
| 53 |
|
|
|
|
|
|
|
| 54 |
|
| 55 |
+
## Parameters
|
| 56 |
|
| 57 |
+
| Parameter | Type | Description |
|
| 58 |
+
|---|---|---|
|
| 59 |
+
| `num_filters` | int, optional | Number of filters in the convolutional layer. Default is 1. |
|
| 60 |
+
| `filter_width` | int, optional | Width of the convolutional filters. Default is 40. |
|
| 61 |
+
| `pool_size` | int, optional | Size of the pooling window. Default is 40. |
|
| 62 |
+
| `activation` | nn.Module, optional | Activation function to apply after pooling. Default is `nn.ReLU`. |
|
| 63 |
+
| `ampli_init_values` | tuple of float, optional | The initialization range for amplitude parameter using uniform distribution. Default is (-0.05, 0.05). |
|
| 64 |
+
| `omega_init_values` | tuple of float, optional | The initialization range for omega parameters using uniform distribution. Default is (0, 1). |
|
| 65 |
+
| `beta_init_values` | tuple of float, optional | The initialization range for beta (decay) parameters using uniform distribution. Default is (0, 0.05). |
|
| 66 |
+
| `phase_init_values` | tuple of float, optional | The initialization mean and standard deviation for phase parameters using normal distribution. Default is (0, 0.05). |
|
| 67 |
|
|
|
|
|
|
|
|
|
|
| 68 |
|
| 69 |
+
## References
|
| 70 |
|
| 71 |
+
1. Li, Y., Dzirasa, K., Carin, L., & Carlson, D. E. (2017). Targeting EEG/LFP synchrony with neural nets. Advances in neural information processing systems, 30.
|
| 72 |
+
2. Code from Baselines for EEG-Music Emotion Recognition Grand Challenge at ICASSP 2025. https://github.com/SalvoCalcagno/eeg-music-challenge-icassp-2025-baselines
|
|
|
|
| 73 |
|
|
|
|
|
|
|
| 74 |
|
| 75 |
## Citation
|
| 76 |
|
| 77 |
+
Cite the original architecture paper (see *References* above) and braindecode:
|
|
|
|
| 78 |
|
| 79 |
```bibtex
|
| 80 |
@article{aristimunha2025braindecode,
|