def load(model_name=model_name, layer=layer, region=region, pca_components=pca_components):
activations_model = base_model_pool[model_name]
if pca_components:
LayerPCA.hook(activations_model, n_components=pca_components)
activations_model.identifier += "-pca_1000"
model = LayerMappedModel(f"{model_name}-{layer}", activations_model=activations_model, visual_degrees=8)
model.commit(region, layer)
model = TemporalIgnore(model)
return model
def test_newmodel_pytorch(self):
import torch
from torch import nn
from model_tools.activations.pytorch import load_preprocess_images
class MyModel(nn.Module):
def __init__(self):
super(MyModel, self).__init__()
self.conv1 = torch.nn.Conv2d(in_channels=3,
out_channels=2,
kernel_size=3)
self.relu1 = torch.nn.ReLU()
linear_input_size = np.power((224 - 3 + 2 * 0) / 1 + 1, 2) * 2
self.linear = torch.nn.Linear(int(linear_input_size), 1000)
self.relu2 = torch.nn.ReLU(
) # can't get named ReLU output otherwise
# init weights for reproducibility
self.conv1.weight.data.fill_(0.01)
self.conv1.bias.data.fill_(0.01)
self.linear.weight.data.fill_(0.01)
self.linear.bias.data.fill_(0.01)
def forward(self, x):
x = self.conv1(x)
x = self.relu1(x)
x = x.view(x.size(0), -1)
x = self.linear(x)
x = self.relu2(x)
return x
preprocessing = functools.partial(load_preprocess_images,
image_size=224)
model_id = 'new_pytorch'
activations_model = PytorchWrapper(model=MyModel(),
preprocessing=preprocessing,
identifier=model_id)
layer = 'relu2'
candidate = LayerMappedModel(f"{model_id}-{layer}",
activations_model=activations_model,
visual_degrees=8)
candidate.commit('IT', layer)
candidate = TemporalIgnore(candidate)
ceiled_score = score_model(
model_identifier=model_id,
model=candidate,
benchmark_identifier='dicarlo.MajajHong2015.IT-pls')
score = ceiled_score.raw
assert score.sel(aggregation='center') == approx(.0820823, abs=.01)
def test_commit(self, model_ctr, layers, region):
activations_model = model_ctr()
layer_model = LayerMappedModel(identifier=activations_model.identifier,
activations_model=activations_model)
layer_model.commit(region, layers)
layer_model.start_recording(region)
stimulus_set = StimulusSet([{'image_id': 'test'}])
stimulus_set.image_paths = {
'test': os.path.join(os.path.dirname(__file__), 'rgb1.jpg')
}
stimulus_set.name = self.__class__.__name__
predictions = layer_model.look_at(stimulus_set)
assert set(predictions['region'].values) == {region}
assert set(predictions['layer'].values) == {layers} if isinstance(
layers, str) else set(layers)