def reset_gen():
        if args.model in ['iagan_began_cs']:
            gen = Generator128(64)
            gen = load_trained_net(
                gen,
                ('./checkpoints/celeba_began.withskips.bs32.cosine.min=0.25'
                 '.n_cuts=0/gen_ckpt.49.pt'))
            gen = gen.eval().to(DEVICE)
            img_size = 128
        elif args.model in ['iagan_dcgan_cs']:
            gen = dcgan_generator()
            t = torch.load(('./dcgan_checkpoints/netG.epoch_24.n_cuts_0.bs_64'
                            '.b1_0.5.lr_0.0002.pt'))
            gen.load_state_dict(t)
            gen = gen.eval().to(DEVICE)
            img_size = 64

        elif args.model in ['iagan_vanilla_vae_cs']:
            gen = VAE()
            t = torch.load('./vae_checkpoints/vae_bs=128_beta=1.0/epoch_19.pt')
            gen.load_state_dict(t)
            gen = gen.eval().to(DEVICE)
            gen = gen.decoder
            img_size = 128
        else:
            raise NotImplementedError()
        return gen, img_size
Example #2
0
    def __init__(self, binary_features, continuous_features, z_dim, hidden_dim,
                 hidden_layers, optimizer, activation, cuda):
        pyro.clear_param_store()
        vae = VAE(binary_features, continuous_features, z_dim, hidden_dim,
                  hidden_layers, activation, cuda)
        vae = vae.double()
        self.vae = vae
        self.svi = SVI(vae.model, vae.guide, optimizer, loss=Trace_ELBO())
        self.cuda = cuda

        self.train_stats = Statistics()
        self.test_stats = Statistics()
Example #3
0
def main():
    (train_X, train_Y), (test_X,
                         test_Y) = load_fold(["data/input.fold.train1.csv"],
                                             ["data/input.fold.test1.csv"])

    print(train_X.shape)

    vae = VAE()

    # Train VAE
    vae.fit(train_X)

    # Sampling 1 data point from each data point in train set
    samples = vae.generate(X=train_X)

    return
Example #4
0
def main():
    parser = _build_parser()
    args = parser.parse_args()

    logging.basicConfig(format="%(levelname)s: %(message)s",
                        level=logging.DEBUG)

    device = torch.device('cpu')
    if torch.cuda.is_available():
        device = torch.device('cuda')

    model = None
    if args.model == 'vae':
        model = VAE().double().to(device)
    elif args.model == 'hm':
        model = HM().double().to(device)
    else:
        logging.critical('model unimplemented: %s' % args.model)
        return

    if not args.out.exists():
        args.out.mkdir(parents=True)

    _, test_ds = build_datasets(args.im_path, train_test_split=1)

    ckpt = torch.load(args.save_path, map_location=device)
    model.load_state_dict(ckpt['model_state_dict'])
    model.eval()

    _sample_images(model, args.batch, args.samples, test_ds, args.out)
def get_model(name):
    para = {'struct': [784,128,100],
        'hidden_func': ['r','a'],
        'hidden_func2': ['r','s'],
        'n_category': 10,
        'dropout': 0.0,
        'task': 'gnr',
        'img_size': [28,28],
        'flatten': True}
    if name == 'vae':
        return VAE(**para)
    elif name == 'mmd':
        return MMDGM_VAE(**para)
    else:
        raise Exception("Enter a correct model name!")
def main():
    parser = _build_parser()
    args = parser.parse_args()

    logging.basicConfig(format="%(levelname)s: %(message)s", level=logging.DEBUG)

    device = torch.device('cpu')
    if torch.cuda.is_available():
        device = torch.device('cuda')

    model = None
    if args.model == 'vae':
        model = VAE().double().to(device)
    else:
        logging.critical('model unimplemented: %s' % args.model)
        return

    if not args.out.parent.exists():
        args.out.parent.mkdir()

    _, test_ds = build_datasets(args.im_path, train_test_split=1)

    ckpt = torch.load(args.save_path, map_location=device)
    model.load_state_dict(ckpt['model_state_dict'])
    model.eval()

    with torch.no_grad():
        samps = model.sample(args.samples).reshape(-1, *IM_DIMS, 3)

    loader = DataLoader(test_ds, 
                        batch_size=args.batch, 
                        num_workers=args.workers,
                        pin_memory=torch.cuda.is_available())

    record = _init_record(samps)
    with tqdm(total=TOTAL_IMAGES) as pbar:
        for chunk in loader:
            _update_winner(chunk.reshape(-1, *IM_DIMS, 3), record, pbar)
    
    np.save(args.out, record['pair'])
    print('final distances:', record['distance'])
Example #7
0
 def reset_gen(model):
     if model == 'began':
         gen = Generator128(64)
         gen = load_trained_net(
             gen,
             ('./checkpoints/celeba_began.withskips.bs32.cosine.min=0.25'
              '.n_cuts=0/gen_ckpt.49.pt'))
         gen = gen.eval().to(DEVICE)
         img_size = 128
     elif model == 'vae':
         gen = VAE()
         t = torch.load('./vae_checkpoints/vae_bs=128_beta=1.0/epoch_19.pt')
         gen.load_state_dict(t)
         gen = gen.eval().to(DEVICE)
         gen = gen.decoder
         img_size = 128
     elif model == 'dcgan':
         gen = dcgan_generator()
         t = torch.load(('./dcgan_checkpoints/netG.epoch_24.n_cuts_0.bs_64'
                         '.b1_0.5.lr_0.0002.pt'))
         gen.load_state_dict(t)
         gen = gen.eval().to(DEVICE)
         img_size = 64
     return gen, img_size
Example #8
0
def generator_samples(model):
    if model == 'began':
        g = Generator128(64).to('cuda:0')
        g = load_trained_net(
            g, ('./checkpoints/celeba_began.withskips.bs32.cosine.min=0.25'
                '.n_cuts=0/gen_ckpt.49.pt'))
    elif model == 'vae':
        g = VAE().to('cuda:0')
        g.load_state_dict(
            torch.load('./vae_checkpoints/vae_bs=128_beta=1.0/epoch_19.pt'))
        g = g.decoder
    elif model == 'biggan':
        g = BigGanSkip().to('cuda:0')
    elif model == 'dcgan':
        g = dcgan_generator().to('cuda:0')
        g.load_state_dict(
            torch.load(('./dcgan_checkpoints/netG.epoch_24.n_cuts_0.bs_64'
                        '.b1_0.5.lr_0.0002.pt')))
    else:
        raise NotImplementedError

    nseed = 10
    n_cuts_list = [0, 1, 2, 3, 4, 5]

    fig, ax = plt.subplots(len(n_cuts_list),
                           nseed,
                           figsize=(10, len(n_cuts_list)))
    for row, n_cuts in enumerate(n_cuts_list):
        input_shapes = g.input_shapes[n_cuts]
        z1_shape = input_shapes[0]
        z2_shape = input_shapes[1]

        for col in range(nseed):
            torch.manual_seed(col)
            np.random.seed(col)
            if n_cuts == 0 and model == 'biggan':
                class_vector = torch.tensor(
                    949, dtype=torch.long).to('cuda:0').unsqueeze(
                        0)  # 949 = strawberry
                embed = g.biggan.embeddings(
                    torch.nn.functional.one_hot(
                        class_vector, num_classes=1000).to(torch.float))
                cond_vector = torch.cat(
                    (torch.randn(1, 128).to('cuda:0'), embed), dim=1)

                img = orig_biggan_forward(
                    g.biggan.generator, cond_vector,
                    truncation=1.0).detach().cpu().squeeze(
                        0).numpy().transpose([1, 2, 0])
            elif n_cuts > 0 and model == 'biggan':
                z1 = torch.randn(1, *z1_shape).to('cuda:0')

                class_vector = torch.tensor(
                    949, dtype=torch.long).to('cuda:0').unsqueeze(
                        0)  # 949 = strawberry
                embed = g.biggan.embeddings(
                    torch.nn.functional.one_hot(
                        class_vector, num_classes=1000).to(torch.float))
                cond_vector = torch.cat(
                    (torch.randn(1, 128).to('cuda:0'), embed), dim=1)
                z2 = cond_vector

                img = g(
                    z1, z2, truncation=1.0,
                    n_cuts=n_cuts).detach().cpu().squeeze(0).numpy().transpose(
                        [1, 2, 0])
            else:
                z1 = torch.randn(1, *z1_shape).to('cuda:0')
                if len(z2_shape) == 0:
                    z2 = None
                else:
                    z2 = torch.randn(1, *z2_shape).to('cuda:0')

                img = g(
                    z1, z2,
                    n_cuts=n_cuts).detach().cpu().squeeze(0).numpy().transpose(
                        [1, 2, 0])

            if g.rescale:
                img = (img + 1) / 2

            ax[row, col].imshow(np.clip(img, 0, 1), aspect='auto')
            ax[row, col].set_xticks([])
            ax[row, col].set_yticks([])
            ax[row, col].set_frame_on(False)
            if col == 0:
                ax[row, col].set_ylabel(f'{n_cuts}')

    fig.subplots_adjust(0, 0, 1, 1, 0, 0)
    os.makedirs('./figures/generator_samples', exist_ok=True)
    plt.savefig((f'./figures/generator_samples/'
                 f'model={model}.pdf'),
                dpi=300,
                bbox_inches='tight')
def mgan_images(args):
    if args.set_seed:
        torch.manual_seed(0)
        np.random.seed(0)
        torch.backends.cudnn.deterministic = True
        torch.backends.cudnn.benchmark = False

    os.makedirs(BASE_DIR, exist_ok=True)

    if args.model in ['mgan_began_cs']:
        gen = Generator128(64)
        gen = load_trained_net(
            gen, ('./checkpoints/celeba_began.withskips.bs32.cosine.min=0.25'
                  '.n_cuts=0/gen_ckpt.49.pt'))
        gen = gen.eval().to(DEVICE)
        img_size = 128
    elif args.model in ['mgan_vanilla_vae_cs']:
        gen = VAE()
        t = torch.load('./vae_checkpoints/vae_bs=128_beta=1.0/epoch_19.pt')
        gen.load_state_dict(t)
        gen = gen.eval().to(DEVICE)
        gen = gen.decoder
        img_size = 128
    elif args.model in ['mgan_dcgan_cs']:
        gen = dcgan_generator()
        t = torch.load(('./dcgan_checkpoints/netG.epoch_24.n_cuts_0.bs_64'
                        '.b1_0.5.lr_0.0002.pt'))
        gen.load_state_dict(t)
        gen = gen.eval().to(DEVICE)
        img_size = 64
    else:
        raise NotImplementedError()

    img_shape = (3, img_size, img_size)
    metadata = recovery_settings[args.model]
    n_cuts_list = metadata['n_cuts_list']
    del (metadata['n_cuts_list'])

    z_init_mode_list = metadata['z_init_mode']
    limit_list = metadata['limit']
    assert len(z_init_mode_list) == len(limit_list)
    del (metadata['z_init_mode'])
    del (metadata['limit'])

    forwards = forward_models[args.model]

    data_split = Path(args.img_dir).name
    for img_name in tqdm(sorted(os.listdir(args.img_dir)),
                         desc='Images',
                         leave=True,
                         disable=args.disable_tqdm):
        # Load image and get filename without extension
        orig_img = load_target_image(os.path.join(args.img_dir, img_name),
                                     img_size).to(DEVICE)
        img_basename, _ = os.path.splitext(img_name)

        for n_cuts in tqdm(n_cuts_list,
                           desc='N_cuts',
                           leave=False,
                           disable=args.disable_tqdm):
            metadata['n_cuts'] = n_cuts
            for i, (f, f_args_list) in enumerate(
                    tqdm(forwards.items(),
                         desc='Forwards',
                         leave=False,
                         disable=args.disable_tqdm)):
                for f_args in tqdm(f_args_list,
                                   desc=f'{f} Args',
                                   leave=False,
                                   disable=args.disable_tqdm):

                    f_args['img_shape'] = img_shape
                    forward_model = get_forward_model(f, **f_args)

                    for z_init_mode, limit in zip(
                            tqdm(z_init_mode_list,
                                 desc='z_init_mode',
                                 leave=False), limit_list):
                        metadata['z_init_mode'] = z_init_mode
                        metadata['limit'] = limit

                        # Before doing recovery, check if results already exist
                        # and possibly skip
                        recovered_name = 'recovered.pt'
                        results_folder = get_results_folder(
                            image_name=img_basename,
                            model=args.model,
                            n_cuts=n_cuts,
                            split=data_split,
                            forward_model=forward_model,
                            recovery_params=dict_to_str(metadata),
                            base_dir=BASE_DIR)

                        os.makedirs(results_folder, exist_ok=True)

                        recovered_path = results_folder / recovered_name
                        if os.path.exists(
                                recovered_path) and not args.overwrite:
                            print(
                                f'{recovered_path} already exists, skipping...'
                            )
                            continue

                        if args.run_name is not None:
                            current_run_name = (
                                f'{img_basename}.{forward_model}'
                                f'.{dict_to_str(metadata)}'
                                f'.{args.run_name}')
                        else:
                            current_run_name = None

                        recovered_img, distorted_img, _ = mgan_recover(
                            orig_img, gen, n_cuts, forward_model,
                            metadata['optimizer'], z_init_mode, limit,
                            metadata['z_lr'], metadata['n_steps'],
                            metadata['z_number'], metadata['restarts'],
                            args.run_dir, current_run_name, args.disable_tqdm)

                        # Make images folder
                        img_folder = get_images_folder(split=data_split,
                                                       image_name=img_basename,
                                                       img_size=img_size,
                                                       base_dir=BASE_DIR)
                        os.makedirs(img_folder, exist_ok=True)

                        # Save original image if needed
                        original_img_path = img_folder / 'original.pt'
                        if not os.path.exists(original_img_path):
                            torch.save(orig_img, original_img_path)

                        # Save distorted image if needed
                        if forward_model.viewable:
                            distorted_img_path = img_folder / f'{forward_model}.pt'
                            if not os.path.exists(distorted_img_path):
                                torch.save(distorted_img, distorted_img_path)

                        # Save recovered image and metadata
                        torch.save(recovered_img, recovered_path)
                        pickle.dump(
                            metadata,
                            open(results_folder / 'metadata.pkl', 'wb'))
                        p = psnr(recovered_img, orig_img)
                        pickle.dump(p, open(results_folder / 'psnr.pkl', 'wb'))
from dataset.cfd import build_datasets
# from dataset.utk import build_datasets
from model.vae import VAE
# from model.vae_gm import GMVAE
from util import lda_analysis

data_path = Path('../data/cfd')
# data_path = Path('../data/utk')
model_path = Path('../save/vae/vae_jan19_final.pt')
save_path = Path('../save/vae/cfd/latent')

# <codecell>
if not save_path.exists():
    save_path.mkdir(parents=True)

model = VAE()
ckpt = torch.load(model_path, map_location=torch.device('cpu'))
model.load_state_dict(ckpt['model_state_dict'])
model.eval()

_, test_ds = build_datasets(data_path, train_test_split=1)

# test_ds = [test_ds[i] for i in range(10)]

# <codecell>
test_len = len(test_ds)
ldims = model.latent_dims
mu_points = np.zeros((test_len, ldims))
var_points = np.zeros((test_len, ldims))
feats = []
Example #11
0
                        default=0.4,
                        metavar='DR',
                        help='aux loss coef (default: 0.4)')
    parser.add_argument('--use-trained',
                        type=bool,
                        default=False,
                        metavar='UT',
                        help='load pretrained model (default: False)')

    args = parser.parse_args()

    batch_loader = BatchLoader()
    parameters = Parameters(batch_loader.vocab_size)

    vae = VAE(parameters.vocab_size, parameters.embed_size,
              parameters.latent_size, parameters.decoder_rnn_size,
              parameters.decoder_rnn_num_layers)
    if args.use_trained:
        vae.load_state_dict(t.load('trained_VAE'))
    if args.use_cuda:
        vae = vae.cuda()

    optimizer = Adam(vae.parameters(), args.learning_rate)

    for iteration in range(args.num_iterations):
        '''Train step'''
        input, decoder_input, target = batch_loader.next_batch(
            args.batch_size, 'train', args.use_cuda)
        target = target.view(-1)

        logits, aux_logits, kld = vae(args.dropout, input, decoder_input)
Example #12
0
    def __init__(self, config):
        super(Cycle_GAN, self).__init__()
        self.config = config
        self.logger = get_logger("CycleGAN")
        self.output_names = [
            'real_A', 'fake_B', 'rec_A', 'real_B', 'fake_A', 'rec_B'
        ]
        self.sigma = self.config['variational']['sigma']
        assert "sketch" in self.config["model_type"] and "face" in self.config[
            "model_type"], "This CycleGAN iterator only works with model_type:'sketch2face'"
        assert config[
            "iterator"] == "iterator.cycle_gan.CycleGAN", "This CycleGAN model only works with with the Cycle_GAN iterator."

        latent_dim = self.config["latent_dim"]
        min_channels = self.config['conv']['n_channel_start']
        max_channels = self.config['conv']['n_channel_max']
        sketch_shape = [32, 1]
        face_shape = [self.config['data']['transform']['resolution'], 3]
        sigma = self.config['variational']['sigma']
        num_extra_conv_sketch = self.config['conv']['sketch_extra_conv']
        num_extra_conv_face = self.config['conv']['face_extra_conv']
        BlockActivation = nn.ReLU()
        FinalActivation = nn.Tanh()
        batch_norm_enc = batch_norm_dec = self.config['batch_norm']
        drop_rate_enc = self.config['dropout']['enc_rate']
        drop_rate_dec = self.config['dropout']['dec_rate']
        bias_enc = self.config['bias']['enc']
        bias_dec = self.config['bias']['dec']
        num_latent_layer = self.config['variational'][
            'num_latent_layer'] if 'num_latent_layer' in self.config[
                'variational'] else 0
        # load the right networks of the model
        self.netG_A = VAE(latent_dim,
                          min_channels,
                          max_channels,
                          *sketch_shape,
                          *face_shape,
                          sigma,
                          num_extra_conv_sketch,
                          num_extra_conv_face,
                          BlockActivation,
                          FinalActivation,
                          batch_norm_enc,
                          batch_norm_dec,
                          drop_rate_enc,
                          drop_rate_dec,
                          bias_enc,
                          bias_dec,
                          num_latent_layer=num_latent_layer)
        self.netD_A = Discriminator_sketch()
        self.netG_B = VAE(latent_dim,
                          min_channels,
                          max_channels,
                          *face_shape,
                          *sketch_shape,
                          sigma,
                          num_extra_conv_face,
                          num_extra_conv_sketch,
                          BlockActivation,
                          FinalActivation,
                          batch_norm_enc,
                          batch_norm_dec,
                          drop_rate_enc,
                          drop_rate_dec,
                          bias_enc,
                          bias_dec,
                          num_latent_layer=num_latent_layer)
        self.netD_B = Discriminator_face()
Example #13
0
    def __init__(self, config):
        super(Cycle_WGAN, self).__init__()
        assert config[
            "iterator"] == "iterator.cycle_wgan.Cycle_WGAN", "This model only works with the iterator: 'iterator.cycle_wgan.Cycle_WGAN"
        assert "sketch" in config["model_type"] and "face" in config[
            "model_type"], "This model only works with model_type: 'sketch2face'"
        if "debug_log_level" in config and config["debug_log_level"]:
            LogSingleton.set_log_level("debug")
        # get logger and config
        self.logger = get_logger("CycleWGAN")
        self.config = config
        set_random_state(self.config)
        self.logger.info("WGAN_GradientPenalty init model.")
        self.output_names = [
            'real_A', 'fake_B', 'rec_A', 'real_B', 'fake_A', 'rec_B'
        ]
        self.sigma = self.config['variational']['sigma']
        self.num_latent_layer = self.config['variational'][
            'num_latent_layer'] if "variational" in self.config and "num_latent_layer" in self.config[
                "variational"] else 0

        latent_dim = self.config["latent_dim"]
        min_channels = self.config['conv']['n_channel_start']
        max_channels = self.config['conv']['n_channel_max']
        sketch_shape = [32, 1]
        face_shape = [self.config['data']['transform']['resolution'], 3]
        sigma = self.config['variational']['sigma']
        num_extra_conv_sketch = self.config['conv']['sketch_extra_conv']
        num_extra_conv_face = self.config['conv']['face_extra_conv']
        block_activation = nn.ReLU()
        final_activation = nn.Tanh()
        batch_norm_enc = batch_norm_dec = self.config['batch_norm']
        drop_rate_enc = self.config['dropout'][
            'enc_rate'] if "dropout" in self.config and "enc_rate" in self.config[
                "dropout"] else 0
        drop_rate_dec = self.config['dropout'][
            'dec_rate'] if "dropout" in self.config and "dec_rate" in self.config[
                "dropout"] else 0
        bias_enc = self.config['bias'][
            'enc'] if "bias" in self.config and "enc" in self.config[
                "bias"] else True
        bias_dec = self.config['bias'][
            'dec'] if "bias" in self.config and "dec" in self.config[
                "bias"] else True
        num_latent_layer = self.config['variational'][
            'num_latent_layer'] if "variational" in self.config and "num_latent_layer" in self.config[
                "variational"] else 0
        ## cycle A ##
        self.netG_A = VAE(latent_dim=latent_dim,
                          min_channels=min_channels,
                          max_channels=max_channels,
                          in_size=sketch_shape[0],
                          in_channels=sketch_shape[1],
                          out_size=face_shape[0],
                          out_channels=face_shape[1],
                          sigma=sigma,
                          num_extra_conv_enc=num_extra_conv_sketch,
                          num_extra_conv_dec=num_extra_conv_face,
                          block_activation=block_activation,
                          final_activation=final_activation,
                          batch_norm_enc=batch_norm_enc,
                          batch_norm_dec=batch_norm_dec,
                          drop_rate_enc=drop_rate_enc,
                          drop_rate_dec=drop_rate_dec,
                          bias_enc=bias_enc,
                          bias_dec=bias_dec,
                          same_max_channels=False,
                          num_latent_layer=num_latent_layer)
        self.netD_A = WGAN_Discriminator_sketch()
        ## cycle B ##
        self.netG_B = VAE(latent_dim=latent_dim,
                          min_channels=min_channels,
                          max_channels=max_channels,
                          in_size=face_shape[0],
                          in_channels=face_shape[1],
                          out_size=sketch_shape[0],
                          out_channels=sketch_shape[1],
                          sigma=sigma,
                          num_extra_conv_enc=num_extra_conv_sketch,
                          num_extra_conv_dec=num_extra_conv_face,
                          block_activation=block_activation,
                          final_activation=final_activation,
                          batch_norm_enc=batch_norm_enc,
                          batch_norm_dec=batch_norm_dec,
                          drop_rate_enc=drop_rate_enc,
                          drop_rate_dec=drop_rate_dec,
                          bias_enc=bias_enc,
                          bias_dec=bias_dec,
                          same_max_channels=False,
                          num_latent_layer=num_latent_layer)
        self.netD_B = WGAN_Discriminator_face(input_resolution=face_shape[0])
Example #14
0
def main():
    file_name = 'data/CUB/attributes.txt'
    f = open(file_name, 'r')
    content = f.readlines()
    atts = []
    for item in content:
        atts.append(item.strip().split(' ')[1])

    CUDA = False
    if torch.cuda.is_available():
        CUDA = True
        print('cuda available')
        torch.backends.cudnn.benchmark = True
    config = config_process(parser.parse_args())
    print(config)

    # pkl_name='./pkl/{}_{}_{}_{}_task_id_{}_finetune_{}_{}'.format(
    #             config['dataset'], config['method'], config['softmax_method'],config['arch'],
    #             config['task_id'], config['finetune'], '.pkl')
    #
    # with open(pkl_name,'rb') as f:
    #     feat_dict=pkl.load(f)

    with open('pkl/task_0_train.pkl', 'rb') as f:
        task_0_train = pkl.load(f)

    with open('pkl/task_1_train.pkl', 'rb') as f:
        task_1_train = pkl.load(f)

    ###### task 0:seen training data and unseen test data
    examples, labels, class_map = image_load(config['class_file'],
                                             config['image_label'])
    ###### task 0: seen test data
    examples_0, labels_0, class_map_0 = image_load(config['class_file'],
                                                   config['test_seen_classes'])

    datasets = split_byclass(config, examples, labels,
                             np.loadtxt(config['attributes_file']), class_map)
    datasets_0 = split_byclass(config, examples_0, labels_0,
                               np.loadtxt(config['attributes_file']),
                               class_map)
    print('load the task 0 train: {} the task 1 as test: {}'.format(
        len(datasets[0][0]), len(datasets[0][1])))
    print('load task 0 test data {}'.format(len(datasets_0[0][0])))

    classes_text_embedding = torch.eye(312, dtype=torch.float32)
    test_attr = classes_text_embedding[:, :]

    train_attr = F.normalize(datasets[0][3])
    # test_attr=F.normalize(datasets[0][4])

    best_cfg = config
    best_cfg['n_classes'] = datasets[0][3].size(0)
    best_cfg['n_train_lbl'] = datasets[0][3].size(0)
    best_cfg['n_test_lbl'] = datasets[0][4].size(0)

    task_0_train_set = grab_data(best_cfg, task_0_train, datasets[0][2], True)
    task_1_train_set = grab_data(best_cfg, task_1_train, datasets[0][2], False)

    base_model = models.__dict__[config['arch']](pretrained=True)
    if config['arch'].startswith('resnet'):
        FE_model = nn.Sequential(*list(base_model.children())[:-1])
    else:
        print('untested')
        raise NotImplementedError

    print('load pretrained FE_model')
    FE_path = './ckpts/{}_{}_{}_task_id_{}_finetune_{}_{}'.format(
        config['dataset'], config['softmax_method'], config['arch'],
        config['task_id'], config['finetune'], 'checkpoint.pth')

    FE_model.load_state_dict(torch.load(FE_path)['state_dict_FE'])
    for name, para in FE_model.named_parameters():
        para.requires_grad = False

    vae = VAE(encoder_layer_sizes=config['encoder_layer_sizes'],
              latent_size=config['latent_size'],
              decoder_layer_sizes=config['decoder_layer_sizes'],
              num_labels=config['num_labels'])
    vae2 = VAE(encoder_layer_sizes=config['encoder_layer_sizes'],
               latent_size=config['latent_size'],
               decoder_layer_sizes=config['decoder_layer_sizes'],
               num_labels=config['num_labels'])
    vae_path = './ckpts/{}_{}_{}_task_id_{}_finetune_{}_{}'.format(
        config['dataset'], config['method'], config['arch'], config['task_id'],
        config['finetune'], 'ckpt.pth')

    vae_path = './ckpts/{}_{}_{}_{}_task_id_{}_finetune_{}_{}'.format(
        config['dataset'], 'vae', 'softmax_distill', config['arch'], 1,
        config['finetune'], 'ckpt.pth')

    vae2_path = './ckpts/{}_{}_{}_{}_task_id_{}_finetune_{}_{}'.format(
        config['dataset'], 'vae_distill', 'softmax_distill', config['arch'], 1,
        config['finetune'], 'ckpt.pth')

    vae.load_state_dict(torch.load(vae_path))
    vae2.load_state_dict(torch.load(vae2_path))
    for name, para in vae.named_parameters():
        para.requires_grad = False
    for name, para in vae2.named_parameters():
        para.requires_grad = False

    if CUDA:
        FE_model = FE_model.cuda()
        vae = vae.cuda()
        vae2 = vae2.cuda()

    ATTR_NUM = 312
    SYN_NUM = config['syn_num']
    attr_feat, attr_lbl = generate_syn_feature(ATTR_NUM, vae, test_attr,
                                               SYN_NUM, config)
    attr_feat2, attr_lbl2 = generate_syn_feature(ATTR_NUM, vae2, test_attr,
                                                 SYN_NUM, config)

    with open('attr_tsne_data/attr_vae_time_2_fe_distill.pkl', 'wb') as f:
        pkl.dump(attr_feat, f)
    with open('attr_tsne_data/attr_vae_time_2_double_distill.pkl', 'wb') as g:
        pkl.dump(attr_feat2, g)

    colors = cm.rainbow(np.linspace(0, 1, ATTR_NUM))
    fig = plt.figure(figsize=(16, 9))
    tsne = TSNE(n_components=2)

    feat = torch.cat((attr_feat, attr_feat2))
    tsne_results = tsne.fit_transform(feat)
    color_ind = colors[attr_lbl]
    ax = fig.add_subplot(1, 1, 1)

    for i in range(ATTR_NUM):
        ax.scatter(tsne_results[i * SYN_NUM:(i + 1) * SYN_NUM, 0],
                   tsne_results[i * SYN_NUM:(i + 1) * SYN_NUM, 1],
                   label=atts[i],
                   c=np.tile(colors[i].reshape(1, -1), (SYN_NUM, 1)),
                   s=20,
                   marker='X')

    result = tsne_results[ATTR_NUM * SYN_NUM:, :]
    for j in range(ATTR_NUM):
        ax.scatter(result[j * SYN_NUM:(j + 1) * SYN_NUM, 0],
                   result[j * SYN_NUM:(j + 1) * SYN_NUM, 1],
                   label=atts[j],
                   c=np.tile(colors[j].reshape(1, -1), (SYN_NUM, 1)),
                   s=20,
                   marker='o')
    # ax.scatter(tsne_results[:, 0], tsne_results[:, 1],c=color_ind, s=20, marker='X')
    plt.legend()
    plt.show()
Example #15
0
args = parser.parse_args()
args.cuda = not args.no_cuda and torch.cuda.is_available()

torch.manual_seed(args.seed)
if args.cuda:
    torch.cuda.manual_seed(args.seed)

train_loader = DataLoader(get_dataset(dsize=args.size),
                          batch_size=args.batch_size,
                          shuffle=True)
test_loader = DataLoader(get_dataset(root="../data/test", dsize=args.size),
                         batch_size=args.batch_size,
                         shuffle=True)

model = VAE(args)
model.apply(weights_init())
if args.cuda:
    model.cuda()

optimizer = optim.Adam(model.parameters(), lr=1e-4)

if args.rec_loss == "ssim":
    rec_loss = SSIMLoss(method=args.ssim_method)
elif args.rec_loss == "bce":
    rec_loss = nn.BCELoss(size_average=args.size_average)
elif args.rec_loss == "l1":
    rec_loss = nn.L1Loss(size_average=args.size_average)
else:
    rec_loss = None
kl_loss = KLLoss(size_average=args.size_average)
Example #16
0
                    help="random seed for reproductability")
parser.add_argument("--lr", default=0.0001, type=float, help="learning rate")
parser.add_argument("--epoch", default=5, type=int, help="training epochs")
parser.add_argument("--model",
                    default="memae",
                    type=str,
                    help="model list = ['dagmm', 'memae']")

args = parser.parse_args()

# Fix seed
set_seed(args.seed)
device = torch.device('cuda:0')

# Model list
model_all = {'dagmm': DAGMM(), 'memae': MEMAE(), 'ae': AE(), 'vae': VAE()}

kdd_path = '../kdd_120'
data_name = '10'
# data_name='og'

x_train, y_train = get_hdf5_data(kdd_path +
                                 '/processed/train_{}.hdf5'.format(data_name),
                                 labeled=True)
print("Train: Normal:{}, Atk:{}".format(x_train[y_train == 0].shape[0],
                                        x_train[y_train == 1].shape[0]))

x_test, y_test = get_hdf5_data(kdd_path +
                               '/processed/test_{}.hdf5'.format(data_name),
                               labeled=True)
print("Test: Normal:{}, Atk:{}".format(x_test[y_test == 0].shape[0],
def main():
    CUDA = False
    if torch.cuda.is_available():
        CUDA = True
        print('cuda available')
        torch.backends.cudnn.benchmark = True
    config = config_process(parser.parse_args())
    print(config)

    with open('pkl/task_1_train.pkl', 'rb') as f:
        task_1_train = pkl.load(f)
    with open('pkl/task_1_test.pkl', 'rb') as g:
        task_1_test = pkl.load(g)

    ###### task 0:seen training data and unseen test data
    examples, labels, class_map = image_load(config['class_file'],
                                             config['image_label'])
    ###### task 0: seen test data
    examples_0, labels_0, class_map_0 = image_load(config['class_file'],
                                                   config['test_seen_classes'])

    datasets = split_byclass(config, examples, labels,
                             np.loadtxt(config['attributes_file']), class_map)
    datasets_0 = split_byclass(config, examples_0, labels_0,
                               np.loadtxt(config['attributes_file']),
                               class_map)
    print('load the task 0 train: {} the task 1 as test: {}'.format(
        len(datasets[0][0]), len(datasets[0][1])))
    print('load task 0 test data {}'.format(len(datasets_0[0][0])))

    test_attr = F.normalize(datasets[0][4])

    best_cfg = config
    best_cfg['n_classes'] = datasets[0][3].size(0)
    best_cfg['n_train_lbl'] = datasets[0][3].size(0)
    best_cfg['n_test_lbl'] = datasets[0][4].size(0)

    task_1_train_set = grab_data(best_cfg, task_1_train, datasets[0][2], True)
    # task_1_test_set = grab_data(best_cfg, task_1_test, datasets[0][2], False)

    base_model = models.__dict__[config['arch']](pretrained=False)
    if config['arch'].startswith('resnet'):
        FE_model = nn.Sequential(*list(base_model.children())[:-1])
    else:
        print('untested')
        raise NotImplementedError

    ###### if finetune == False,
    print('load pretrained FE_model')
    FE_path = './ckpts/{}_{}_{}_task_id_{}_finetune_{}_{}'.format(
        config['dataset'], config['softmax_method'], config['arch'],
        config['task_id'], config['finetune'], 'checkpoint.pth')

    FE_model.load_state_dict(torch.load(FE_path)['state_dict_FE'])
    for name, para in FE_model.named_parameters():
        para.requires_grad = False

    vae = VAE(encoder_layer_sizes=config['encoder_layer_sizes'],
              latent_size=config['latent_size'],
              decoder_layer_sizes=config['decoder_layer_sizes'],
              num_labels=config['num_labels'])

    vae_path = './ckpts/{}_{}_{}_task_id_{}_finetune_{}_{}'.format(
        config['dataset'], 'vae', config['arch'], 0, config['finetune'],
        'ckpt.pth')
    vae.load_state_dict(torch.load(vae_path))

    print(vae)
    if CUDA:
        FE_model = FE_model.cuda()
        vae = vae.cuda()
    FE_model.eval()
    optimizer = torch.optim.Adam(vae.parameters(), lr=config['lr'])

    scheduler = torch.optim.lr_scheduler.StepLR(optimizer,
                                                config['step'],
                                                gamma=0.1,
                                                last_epoch=-1)
    criterion = loss_fn
    print('have got real trainval feats and labels')

    for epoch in range(config['epoch']):
        print('\n epoch: %d' % epoch)
        print('...TRAIN...')
        print_learning_rate(optimizer)
        ### train_attr--->test_attr, task_0_train_set---> task_1_train_set
        train(epoch, FE_model, vae, task_1_train_set, optimizer, criterion,
              test_attr, CUDA)
        scheduler.step()

    vae_ckpt_name = './ckpts/{}_{}_{}_{}_task_id_{}_finetune_{}_{}'.format(
        config['dataset'], config['method'], config['softmax_method'],
        config['arch'], config['task_id'], config['finetune'], 'ckpt.pth')
    torch.save(vae.state_dict(), vae_ckpt_name)
Example #18
0
device = torch.device('cuda:0')

train_loader, img_size = get_dataloader('./data/celeba_preprocessed',
                                        args.batch_size,
                                        n_train=-1,
                                        train=True)
test_loader, _ = get_dataloader('./data/celeba_preprocessed',
                                args.batch_size,
                                n_train=-1,
                                train=False)

save_img_every_n = 20

latent_dim = 512
lr = 2e-4
model = VAE(latent_dim).to(device)
optimizer = optim.AdamW(model.parameters(), lr=lr, betas=(0.9, 0.999))
scheduler = optim.lr_scheduler.ExponentialLR(optimizer, gamma=0.9)


# Reconstruction + KL divergence losses summed over all elements and batch
def loss_function(recon_x, x, mu, logvar):
    reconstr = F.mse_loss(recon_x, x,
                          reduction='none').sum(3).sum(2).sum(1).mean(0)

    # see Appendix B from VAE paper:
    # Kingma and Welling. Auto-Encoding Variational Bayes. ICLR, 2014
    # https://arxiv.org/abs/1312.6114
    # 0.5 * sum(1 + log(sigma^2) - mu^2 - sigma^2)
    KLD = torch.mean(-0.5 *
                     torch.sum(1 + logvar - mu.pow(2) - logvar.exp(), dim=1),
Example #19
0
 def test_new(self):
     model = VAE()
     self.assertNotEqual(model, None)
Example #20
0
def main(_):
    """
    Main training function, loads MNIST training data, then builds and trains the VAE. Also runs
    some plotting code in order to visually evaluate the quality of the reconstructions.
    """
    # Fix directories
    if tf.gfile.Exists(FLAGS.log_dir):
        tf.gfile.DeleteRecursively(FLAGS.log_dir)
    tf.gfile.MakeDirs(FLAGS.log_dir)

    mnist = input_data.read_data_sets('MNIST_data', one_hot=True)
    n_samples = mnist.train.num_examples

    # Start training
    print "Starting Session"
    with tf.Session() as sess:
        # Instantiate Network
        vae = VAE()

        # Create a saver
        saver = tf.train.Saver(tf.all_variables())

        # Initialize all variables
        sess.run(tf.initialize_all_variables())

        # Run through the epochs
        for epoch in range(FLAGS.epochs):
            avg_cost = 0.
            total_batch = n_samples / FLAGS.batch_size

            # Loop over batches
            for i in range(total_batch):
                batch_x, _ = mnist.train.next_batch(FLAGS.batch_size)
                cost, _ = sess.run([vae.loss_val, vae.train_op], feed_dict={vae.X: batch_x})
                avg_cost += cost / (n_samples * FLAGS.batch_size)

            # Display step
            if epoch % FLAGS.display_step == 0:
                print "Epoch:", epoch, " " * 4, "Average Cost:", avg_cost
                checkpoint_path = os.path.join(FLAGS.log_dir, 'model.ckpt')
                saver.save(sess, checkpoint_path, epoch)

        # Generate Reconstructed Pictures
        if FLAGS.z_dim > 2:
            x_sample = mnist.test.next_batch(FLAGS.batch_size)[0]
            x_reconstruct = vae.reconstruct(sess, x_sample)

            plt.figure(figsize=(8, 12))
            for i in range(5):
                plt.subplot(5, 2, 2 * i + 1)
                plt.imshow(x_sample[i+10].reshape(28, 28), vmin=0, vmax=1)
                plt.title("Test input")
                plt.colorbar()
                plt.subplot(5, 2, 2 * i + 2)
                plt.imshow(x_reconstruct[i+10].reshape(28, 28), vmin=0, vmax=1)
                plt.title("Reconstruction")
                plt.colorbar()
            plt.tight_layout()
            plt.show()
        else:
            nx = ny = 20
            x_values = np.linspace(-3, 3, nx)
            y_values = np.linspace(-3, 3, ny)
            canvas = np.empty((28 * ny, 28 * nx))
            for i, yi in enumerate(x_values):
                for j, xi in enumerate(y_values):
                    z_mu = np.tile(np.array([[xi, yi]]), (FLAGS.batch_size, 1))
                    x_mean = vae.generate(sess, z_mu)
                    canvas[(nx-i-1)*28:(nx-i)*28, j*28:(j+1)*28] = x_mean[0].reshape(28, 28)

            plt.figure(figsize=(8, 10))
            Xi, Yi = np.meshgrid(x_values, y_values)
            plt.imshow(canvas, origin="upper")
            plt.tight_layout()
            plt.show()
Example #21
0
def main():
    parser = _build_parser()
    args = parser.parse_args()

    logging.basicConfig(format="%(levelname)s: %(message)s",
                        level=logging.DEBUG)

    device = torch.device('cpu')
    if torch.cuda.is_available():
        device = torch.device('cuda')

    model = None
    save_path = args.save
    if args.model == 'vae':
        model = VAE(args.dim)
        logging.info('training VAE with dims: {}'.format(args.dim))
    elif args.model == 'ae':
        model = AE(args.dim)
        logging.info('training AE with dims: {}'.format(args.dim))
    elif args.model == 'hm':
        model = HM(args.color)
    elif args.model == 'gmvae':
        model = GMVAE()
    else:
        logging.critical('model unimplemented: %s' % args.model)
        return

    if not save_path.exists():
        save_path.mkdir(parents=True)

    model = model.float()
    model.to(device)
    optimizer = optim.Adam(model.parameters())

    train_ds, test_ds = build_datasets(args.path)

    losses = []
    for e in range(args.epochs):
        logging.info('epoch: %d of %d' % (e + 1, args.epochs))

        loader = DataLoader(train_ds,
                            batch_size=args.batch_size,
                            shuffle=True,
                            num_workers=args.workers,
                            pin_memory=torch.cuda.is_available())
        total_batches = len(train_ds) // args.batch_size

        log_every = total_batches // 50 + 1
        save_every = 1  # hardcoded for now
        for i, x in enumerate(loader):
            x = x.to(device)
            optimizer.zero_grad()
            output = model(x)
            total_loss = model.loss_function(output)
            if type(total_loss) is dict:  # TODO: generalize loss handling
                total_loss = total_loss['loss']

            total_loss.backward()
            optimizer.step()

            if i % log_every == 0:
                model.eval()
                loss = _eval(model, test_ds, device)
                model.train()

                logging.info('[batch %d/%d] ' % (i + 1, total_batches) +
                             model.print_loss(loss))
                # TODO: generalize printing
                # print_params = (i+1, total_batches, loss['loss'], loss['mse'], loss['kld'])
                # logging.info('[batch %d/%d] loss: %f, mse: %f, kld: %f' % print_params)
                # print_params = (i+1, total_batches, loss)
                # logging.info('[batch %d/%d] loss: %f' % print_params)
                losses.append({'iter': i, 'epoch': e, 'loss': loss})

        if e % save_every == 0:
            torch.save(
                {
                    'epoch': e + 1,
                    'model_state_dict': model.state_dict(),
                    'optimizer_state_dict': optimizer.state_dict(),
                    'loss': loss
                }, save_path / ('epoch_%d.pt' % (e + 1)))

    model.eval()
    loss = _eval(model, test_ds, device)
    model.train()

    logging.info('final loss: %s' % loss)
    losses.append({'iter': 0, 'epoch': e + 1, 'loss': loss})

    with open(save_path / 'loss.pk', 'wb') as pkf:
        pickle.dump(losses, pkf)

    torch.save(
        {
            'epoch': args.epochs,
            'model_state_dict': model.state_dict(),
            'optimizer_state_dict': optimizer.state_dict(),
            'loss': loss
        }, save_path / 'final.pt')
    print('done!')
def main():
    CUDA = False
    if torch.cuda.is_available():
        CUDA = True
        print('cuda available')
        torch.backends.cudnn.benchmark = True
    config = config_process(parser.parse_args())
    print(config)

    with open('pkl/task_1_train.pkl', 'rb') as f:
        task_1_train = pkl.load(f)
    # with open('pkl/task_1_test.pkl', 'rb') as g:
    #     task_1_test = pkl.load(g)
    ######################## task_1_testval.pkl
    with open('pkl/task_1_test.pkl', 'rb') as g:
        task_1_testval = pkl.load(g)

    task_1_test = task_1_testval[:500]
    task_1_val = task_1_testval[500:]
    ###################################### task 1  test + val
    ###### task 0:seen training data and unseen test data
    examples, labels, class_map = image_load(config['class_file'],
                                             config['image_label'])
    ###### task 0: seen test data
    examples_0, labels_0, class_map_0 = image_load(config['class_file'],
                                                   config['test_seen_classes'])

    datasets = split_byclass(config, examples, labels,
                             np.loadtxt(config['attributes_file']), class_map)
    datasets_0 = split_byclass(config, examples_0, labels_0,
                               np.loadtxt(config['attributes_file']),
                               class_map)
    print('load the task 0 train: {} the task 1 as test: {}'.format(
        len(datasets[0][0]), len(datasets[0][1])))
    print('load task 0 test data {}'.format(len(datasets_0[0][0])))

    train_attr = F.normalize(datasets[0][3])
    test_attr = F.normalize(datasets[0][4])

    best_cfg = config
    best_cfg['n_classes'] = datasets[0][3].size(0)
    best_cfg['n_train_lbl'] = datasets[0][3].size(0)
    best_cfg['n_test_lbl'] = datasets[0][4].size(0)

    task_1_train_set = grab_data(best_cfg, task_1_train, datasets[0][2], True)
    task_1_test_set = grab_data(best_cfg, task_1_test, datasets[0][2], False)
    task_1_val_set = grab_data(best_cfg, task_1_val, datasets[0][2], False)
    task_0_seen_test_set = grab_data(best_cfg, datasets_0[0][0],
                                     datasets_0[0][2], False)

    base_model = models.__dict__[config['arch']](pretrained=True)
    if config['arch'].startswith('resnet'):
        FE_model = nn.Sequential(*list(base_model.children())[:-1])
    else:
        print('untested')
        raise NotImplementedError

    print('load pretrained FE_model')
    #######3 task id 'softmax'
    FE_path = './ckpts/{}_{}_{}_task_id_{}_finetune_{}_{}'.format(
        config['dataset'], config['softmax_method'], config['arch'],
        config['task_id'], config['finetune'], 'checkpoint.pth')

    FE_model.load_state_dict(torch.load(FE_path)['state_dict_FE'])
    for name, para in FE_model.named_parameters():
        para.requires_grad = False

    vae = VAE(encoder_layer_sizes=config['encoder_layer_sizes'],
              latent_size=config['latent_size'],
              decoder_layer_sizes=config['decoder_layer_sizes'],
              num_labels=config['num_labels'])

    vae_path = './ckpts/{}_{}_{}_{}_task_id_{}_finetune_{}_{}'.format(
        config['dataset'], config['method'], config['softmax_method'],
        config['arch'], config['task_id'], config['finetune'], 'ckpt.pth')
    vae.load_state_dict(torch.load(vae_path))
    for name, para in vae.named_parameters():
        para.requires_grad = False

    FE_model.eval()
    vae.eval()
    # print(vae)
    if CUDA:
        FE_model = FE_model.cuda()
        vae = vae.cuda()

    #seen
    task_1_real_train = get_prev_feat(FE_model, task_1_train_set, CUDA)
    # task_0_real_val = get_prev_feat(FE_model, task_0_val_set, CUDA)

    print('have got real trainval feats and labels')
    print('...GENERATING fake features...')
    task_0_fake = generate_syn_feature(150, vae, train_attr, config['syn_num'],
                                       config)

    train_X = torch.cat((task_0_fake[0].cuda(), task_1_real_train[0].cuda()))
    train_Y = torch.cat(
        (task_0_fake[1].cuda(), task_1_real_train[1].cuda() + 150))
    # train_X = task_0_fake[0].cuda()
    # train_Y = task_0_fake[1].cuda()
    test_Dataset = PURE(train_X, train_Y)

    test_dataloader = torch.utils.data.DataLoader(test_Dataset,
                                                  batch_size=256,
                                                  shuffle=True)

    test_loss_net = nn.Linear(in_features=2048, out_features=200).cuda()
    test_loss_net_optimizer = torch.optim.Adam(test_loss_net.parameters())

    print('...TRAIN test set CLASSIFIER...')
    # train_syn_val(test_loss_net,task_0_val_set, test_dataloader, test_loss_net_optimizer, 200)
    best_loss_net = train_syn_val(config, FE_model, test_loss_net,
                                  task_1_val_set, test_dataloader,
                                  test_loss_net_optimizer, 200)
    test_loss_net = copy.deepcopy(best_loss_net)
    print('\n...TESTING... GZSL: 200 labels')

    # test_loss_net = torch.load('hist_files/vae_time_2_doulbe_distill_loss_net.pth')
    # torch.save(test_loss_net,'vae_time_2_loss_net.pth')
    test_0_acc, test_0_top1, _, true_labels_0, pred_labels_0 = test(
        config,
        FE_model,
        test_loss_net,
        task_0_seen_test_set,
        CUDA,
        0,
        eval_mode=0,
        print_sign=1)
    test_1_acc, test_1_top1, _, true_labels_1, pred_labels_1 = test(
        config,
        FE_model,
        test_loss_net,
        task_1_test_set,
        CUDA,
        1,
        eval_mode=1,
        print_sign=1)
    H = 2 * test_0_acc * test_1_acc / (test_0_acc + test_1_acc)
    print(H)
    OM = (3 * test_0_acc + test_1_acc) / 4
    print(OM)
    if not os.path.exists('results'):
        os.makedirs('results')

    file_name = '{}_{}_{}_{}.txt'.format(config['dataset'], config['arch'],
                                         config['method'], config['task_id'])
    with open('results/' + file_name, 'a') as fp:
        print(best_cfg, file=fp)
        print(
            'task B: {:.3f}, task A:{:.3f}, H= {:.3f}, OM= {:.3f}  \n'.format(
                test_0_acc, test_1_acc, H, OM),
            file=fp)
Example #23
0
    args = parser.parse_args()
    args.device = torch.device(
        "cuda" if args.gpu and torch.cuda.is_available() else "cpu")
    with open('config') as file:
        params = yaml.load(file, Loader=yaml.Loader)
        layer = '_'.join([str(l) for l in args.layer])

    path = '{}/{}/{}'.format(params['dataset_dir'], params['dataset'],
                             params['feature'])
    print('feature data path: ' + path)
    X = io.mmread(path).A.astype('float32')
    args.n, args.d = X.shape

    # X = normalize(X, norm='l2', axis=0)

    vae = VAE(args)
    if args.load:
        path = '{}/model/vae_{}_{}'.format(params['dataset_dir'],
                                           params['dataset'], layer)
        vae.load_state_dict(torch.load(path))

    vae.to(args.device)

    # psm = PSM(torch.from_numpy(R.astype('float32')).to(args.device), args).to(args.device)

    loader = DataLoader(np.arange(args.n), batch_size=1, shuffle=True)
    optimizer = optim.Adam(vae.parameters(), lr=args.lr)

    evaluator = Evaluator({'recall', 'dcg_cut'})
    # variational()
    # maximum()
asian_to_black_lda_acc = []
male_to_female_lda_acc = []

white_to_asian_lda_acc_pca = []
white_to_black_lda_acc_pca = []
asian_to_black_lda_acc_pca = []
male_to_female_lda_acc_pca = []

for conf in configs:
    print('processing conf: {}'.format(conf.name))
    out_dir = out_path / conf.name
    if not out_dir.exists():
        out_dir.mkdir(parents=True)

    # set up model
    model = VAE(**conf.params)
    ckpt = torch.load(conf.save_path, map_location=torch.device('cpu'))
    model.load_state_dict(ckpt['model_state_dict'])
    model.eval()

    # encode data
    test_len = len(test_ds)
    ldims = model.latent_dims
    mu_points = np.zeros((test_len, ldims))
    var_points = np.zeros((test_len, ldims))
    feats = []

    if not (out_dir / 'mu_points.npy').exists():
        for i in tqdm(range(test_len)):
            im, feat = test_ds[i]
            im = im.unsqueeze(0)
Example #25
0
                                                  batch_size=2,
                                                  shuffle=True,
                                                  num_workers=2,
                                                  collate_fn=collate_fn)

#
# Model
#

device = torch.device('cuda')

epochs = 50
hidden_size = 1024
latent_size = 512

model = VAE(h_dim=hidden_size, z_dim=latent_size)
model = nn.DataParallel(model)
model = model.to(device)

criterion = vae_loss_function
optimizer = torch.optim.Adam(model.parameters(), lr=0.0001)

#
# Training
#

model.train()
for epoch in range(epochs):
    loss, bce, kld = 0, 0, 0

    max_batches = len(unlabeled_trainloader)