def compute_topk_imgs(self, mode='mean'):
if mode == 'mean':
self.topk = tally.tally_topk(self._mean_activations,
dataset=self.ds,
sample_size=self.sample_size,
batch_size=10)
else: # It can only be max if not mean
self.topk = tally.tally_topk(self._max_activations,
dataset=self.ds,
sample_size=self.sample_size,
batch_size=10)
def main():
args = parseargs()
resdir = 'results/%s-%s-%s' % (args.model, args.dataset, args.seg)
if args.layer is not None:
resdir += '-' + args.layer
if args.quantile != 0.005:
resdir += ('-%g' % (args.quantile * 1000))
if args.thumbsize != 100:
resdir += ('-t%d' % (args.thumbsize))
resfile = pidfile.exclusive_dirfn(resdir)
model = load_model(args)
layername = instrumented_layername(args)
model.retain_layer(layername)
dataset = load_dataset(args, model=model.model)
upfn = make_upfn(args, dataset, model, layername)
sample_size = len(dataset)
is_generator = (args.model == 'progan')
percent_level = 1.0 - args.quantile
iou_threshold = args.miniou
image_row_width = 5
torch.set_grad_enabled(False)
# Tally rq.np (representation quantile, unconditional).
pbar.descnext('rq')
def compute_samples(batch, *args):
data_batch = batch.cuda()
_ = model(data_batch)
acts = model.retained_layer(layername)
hacts = upfn(acts)
return hacts.permute(0, 2, 3, 1).contiguous().view(-1, acts.shape[1])
rq = tally.tally_quantile(compute_samples, dataset,
sample_size=sample_size,
r=8192,
num_workers=100,
pin_memory=True,
cachefile=resfile('rq.npz'))
# Create visualizations - first we need to know the topk
pbar.descnext('topk')
def compute_image_max(batch, *args):
data_batch = batch.cuda()
_ = model(data_batch)
acts = model.retained_layer(layername)
acts = acts.view(acts.shape[0], acts.shape[1], -1)
acts = acts.max(2)[0]
return acts
topk = tally.tally_topk(compute_image_max, dataset, sample_size=sample_size,
batch_size=50, num_workers=30, pin_memory=True,
cachefile=resfile('topk.npz'))
# Visualize top-activating patches of top-activatin images.
pbar.descnext('unit_images')
image_size, image_source = None, None
if is_generator:
image_size = model(dataset[0][0].cuda()[None,...]).shape[2:]
else:
image_source = dataset
iv = imgviz.ImageVisualizer((args.thumbsize, args.thumbsize),
image_size=image_size,
source=dataset,
quantiles=rq,
level=rq.quantiles(percent_level))
def compute_acts(data_batch, *ignored_class):
data_batch = data_batch.cuda()
out_batch = model(data_batch)
acts_batch = model.retained_layer(layername)
if is_generator:
return (acts_batch, out_batch)
else:
return (acts_batch, data_batch)
unit_images = iv.masked_images_for_topk(
compute_acts, dataset, topk,
k=image_row_width, num_workers=30, pin_memory=True,
cachefile=resfile('top%dimages.npz' % image_row_width))
pbar.descnext('saving images')
imgsave.save_image_set(unit_images, resfile('image/unit%d.jpg'),
sourcefile=resfile('top%dimages.npz' % image_row_width))
# Compute IoU agreement between segmentation labels and every unit
# Grab the 99th percentile, and tally conditional means at that level.
level_at_99 = rq.quantiles(percent_level).cuda()[None,:,None,None]
segmodel, seglabels, segcatlabels = setting.load_segmenter(args.seg)
renorm = renormalize.renormalizer(dataset, target='zc')
def compute_conditional_indicator(batch, *args):
data_batch = batch.cuda()
out_batch = model(data_batch)
image_batch = out_batch if is_generator else renorm(data_batch)
seg = segmodel.segment_batch(image_batch, downsample=4)
acts = model.retained_layer(layername)
hacts = upfn(acts)
iacts = (hacts > level_at_99).float() # indicator
return tally.conditional_samples(iacts, seg)
pbar.descnext('condi99')
condi99 = tally.tally_conditional_mean(compute_conditional_indicator,
dataset, sample_size=sample_size,
num_workers=3, pin_memory=True,
cachefile=resfile('condi99.npz'))
# Now summarize the iou stats and graph the units
iou_99 = tally.iou_from_conditional_indicator_mean(condi99)
unit_label_99 = [
(concept.item(), seglabels[concept],
segcatlabels[concept], bestiou.item())
for (bestiou, concept) in zip(*iou_99.max(0))]
labelcat_list = [labelcat
for concept, label, labelcat, iou in unit_label_99
if iou > iou_threshold]
save_conceptcat_graph(resfile('concepts_99.svg'), labelcat_list)
dump_json_file(resfile('report.json'), dict(
header=dict(
name='%s %s %s' % (args.model, args.dataset, args.seg),
image='concepts_99.svg'),
units=[
dict(image='image/unit%d.jpg' % u,
unit=u, iou=iou, label=label, cat=labelcat[1])
for u, (concept, label, labelcat, iou)
in enumerate(unit_label_99)])
)
copy_static_file('report.html', resfile('+report.html'))
resfile.done();
sr = inst_net.retained_layer('features.' + layername)
return ((sr > s_99).float() * (ur > u_99).float()).permute(
0, 2, 3, 1).reshape(-1, ur.size(1))
intersect_99 = tally.tally_mean(intersect_99_fn,
ds,
cachefile=os.path.join(
qd.dir(layername), 'intersect_99.npz'))
def compute_image_max(batch):
inst_net(batch.cuda())
return inst_net.retained_layer('features.' +
layername).max(3)[0].max(2)[0]
s_topk = tally.tally_topk(compute_image_max,
sds,
cachefile=os.path.join(qd.dir(layername),
's_topk.npz'))
def compute_acts(image_batch):
inst_net(image_batch.cuda())
acts_batch = inst_net.retained_layer('features.' + layername)
return (acts_batch, image_batch)
iv = imgviz.ImageVisualizer(128, quantiles=s_rq, source=sds)
unit_images = iv.masked_images_for_topk(compute_acts, sds, s_topk, k=5)
os.makedirs(os.path.join(qd.dir(layername), 's_imgs'), exist_ok=True)
imgsave.save_image_set(
unit_images, os.path.join(qd.dir(layername), 's_imgs/unit%d.jpg'))
iv = imgviz.ImageVisualizer(128, quantiles=u_rq, source=uds)
unit_images = iv.masked_images_for_topk(compute_acts, uds, s_topk, k=5)
def main():
# Load the arguments
args = parse_option()
dataset = args.dataset
sample_size = args.sample_size
layername = args.layer
# Other values for places and imagenet MoCo model
epoch = 240
image_size = 224
crop = 0.2
crop_padding = 32
batch_size = 1
num_workers = 24
train_sampler = None
moco = True
mean = [0.485, 0.456, 0.406]
std = [0.229, 0.224, 0.225]
normalize = transforms.Normalize(mean=mean, std=std)
# Set appropriate paths
folder_path = "/data/vision/torralba/ganprojects/yyou/CMC_data/{}_models".format(
dataset)
model_name = "/{}_MoCo0.999_softmax_16384_resnet50_lr_0.03".format(dataset) \
+ "_decay_0.0001_bsz_128_crop_0.2_aug_CJ"
epoch_name = "/ckpt_epoch_{}.pth".format(epoch)
my_path = folder_path + model_name + epoch_name
data_path = "/data/vision/torralba/datasets/"
web_path = "/data/vision/torralba/scratch/yyou/wednesday/dissection/"
if dataset == "imagenet":
data_path += "imagenet_pytorch"
web_path += dataset + "/" + layername
elif dataset == "places365":
data_path += "places/places365_standard/places365standard_easyformat"
web_path += dataset + "/" + layername
# Create web path folder directory for this layer
if not os.path.exists(web_path):
os.makedirs(web_path)
# Load validation data loader
val_folder = data_path + "/val"
val_transform = transforms.Compose([
transforms.Resize(image_size + crop_padding),
transforms.CenterCrop(image_size),
transforms.ToTensor(),
normalize,
])
ds = QuickImageFolder(val_folder,
transform=val_transform,
shuffle=True,
two_crop=False)
ds_loader = torch.utils.data.DataLoader(ds,
batch_size=batch_size,
shuffle=(train_sampler is None),
num_workers=num_workers,
pin_memory=True,
sampler=train_sampler)
# Load model from checkpoint
checkpoint = torch.load(my_path)
model_checkpoint = {
key.replace(".module", ""): val
for key, val in checkpoint['model'].items()
}
model = InsResNet50(parallel=False)
model.load_state_dict(model_checkpoint)
model = nethook.InstrumentedModel(model)
model.cuda()
# Renormalize RGB data from the staistical scaling in ds to [-1...1] range
renorm = renormalize.renormalizer(source=ds, target='zc')
# Retain desired layer with nethook
batch = next(iter(ds_loader))[0]
model.retain_layer(layername)
model(batch.cuda())
acts = model.retained_layer(layername).cpu()
upfn = upsample.upsampler(
target_shape=(56, 56),
data_shape=(7, 7),
)
def flatten_activations(batch, *args):
image_batch = batch
_ = model(image_batch.cuda())
acts = model.retained_layer(layername).cpu()
hacts = upfn(acts)
return hacts.permute(0, 2, 3, 1).contiguous().view(-1, acts.shape[1])
def tally_quantile_for_layer(layername):
rq = tally.tally_quantile(
flatten_activations,
dataset=ds,
sample_size=sample_size,
batch_size=100,
cachefile='results/{}/{}_rq_cache.npz'.format(dataset, layername))
return rq
rq = tally_quantile_for_layer(layername)
# Visualize range of activations (statistics of each filter over the sample images)
fig, axs = plt.subplots(2, 2, figsize=(10, 8))
axs = axs.flatten()
quantiles = [0.5, 0.8, 0.9, 0.99]
for i in range(4):
axs[i].plot(rq.quantiles(quantiles[i]))
axs[i].set_title("Rq quantiles ({})".format(quantiles[i]))
fig.suptitle("{} - sample size of {}".format(dataset, sample_size))
plt.savefig(web_path + "/rq_quantiles")
# Set the image visualizer with the rq and percent level
iv = imgviz.ImageVisualizer(224,
source=ds,
percent_level=0.95,
quantiles=rq)
# Tally top k images that maximize the mean activation of the filter
def max_activations(batch, *args):
image_batch = batch.cuda()
_ = model(image_batch)
acts = model.retained_layer(layername)
return acts.view(acts.shape[:2] + (-1, )).max(2)[0]
def mean_activations(batch, *args):
image_batch = batch.cuda()
_ = model(image_batch)
acts = model.retained_layer(layername)
return acts.view(acts.shape[:2] + (-1, )).mean(2)
topk = tally.tally_topk(
mean_activations,
dataset=ds,
sample_size=sample_size,
batch_size=100,
cachefile='results/{}/{}_cache_mean_topk.npz'.format(
dataset, layername))
top_indexes = topk.result()[1]
# Visualize top-activating images for a particular unit
if not os.path.exists(web_path + "/top_activating_imgs"):
os.makedirs(web_path + "/top_activating_imgs")
def top_activating_imgs(unit):
img_ids = [i for i in top_indexes[unit, :12]]
images = [iv.masked_image(ds[i][0], \
model.retained_layer(layername)[0], unit) \
for i in img_ids]
preds = [ds.classes[model(ds[i][0][None].cuda()).max(1)[1].item()]\
for i in img_ids]
fig, axs = plt.subplots(3, 4, figsize=(16, 12))
axs = axs.flatten()
for i in range(12):
axs[i].imshow(images[i])
axs[i].tick_params(axis='both', which='both', bottom=False, \
left=False, labelbottom=False, labelleft=False)
axs[i].set_title("img {} \n pred: {}".format(img_ids[i], preds[i]))
fig.suptitle("unit {}".format(unit))
plt.savefig(web_path + "/top_activating_imgs/unit_{}".format(unit))
for unit in np.random.randint(len(top_indexes), size=10):
top_activating_imgs(unit)
def compute_activations(image_batch):
image_batch = image_batch.cuda()
_ = model(image_batch)
acts_batch = model.retained_layer(layername)
return acts_batch
unit_images = iv.masked_images_for_topk(
compute_activations,
ds,
topk,
k=5,
num_workers=10,
pin_memory=True,
cachefile='results/{}/{}_cache_top10images.npz'.format(
dataset, layername))
file = open("results/{}/unit_images.pkl".format(dataset, layername), 'wb')
pickle.dump(unit_images, file)
# Load a segmentation model
segmodel, seglabels, segcatlabels = setting.load_segmenter('netpqc')
# Intersections between every unit's 99th activation
# and every segmentation class identified
level_at_99 = rq.quantiles(0.99).cuda()[None, :, None, None]
def compute_selected_segments(batch, *args):
image_batch = batch.cuda()
seg = segmodel.segment_batch(renorm(image_batch), downsample=4)
_ = model(image_batch)
acts = model.retained_layer(layername)
hacts = upfn(acts)
iacts = (hacts >
level_at_99).float() # indicator where > 0.99 percentile.
return tally.conditional_samples(iacts, seg)
condi99 = tally.tally_conditional_mean(
compute_selected_segments,
dataset=ds,
sample_size=sample_size,
cachefile='results/{}/{}_cache_condi99.npz'.format(dataset, layername))
iou99 = tally.iou_from_conditional_indicator_mean(condi99)
file = open("results/{}/{}_iou99.pkl".format(dataset, layername), 'wb')
pickle.dump(iou99, file)
# Show units with best match to a segmentation class
iou_unit_label_99 = sorted(
[(unit, concept.item(), seglabels[concept], bestiou.item())
for unit, (bestiou, concept) in enumerate(zip(*iou99.max(0)))],
key=lambda x: -x[-1])
fig, axs = plt.subplots(20, 1, figsize=(20, 80))
axs = axs.flatten()
for i, (unit, concept, label, score) in enumerate(iou_unit_label_99[:20]):
axs[i].imshow(unit_images[unit])
axs[i].set_title('unit %d; iou %g; label "%s"' % (unit, score, label))
axs[i].set_xticks([])
axs[i].set_yticks([])
plt.savefig(web_path + "/best_unit_segmentation")