LinearModule

_paramters.py

@@ -24,11 +24,14 @@ main_arg_parser.add_argument("--data_class_name", type=str, default='BinaryMasks
 main_arg_parser.add_argument("--data_normalized", type=strtobool, default=True, help="")
 main_arg_parser.add_argument("--data_use_preprocessed", type=strtobool, default=True, help="")
 main_arg_parser.add_argument("--data_n_mels", type=int, default=64, help="")
+main_arg_parser.add_argument("--data_sr", type=int, default=16000, help="")
+main_arg_parser.add_argument("--data_hop_length", type=int, default=62, help="")
+main_arg_parser.add_argument("--data_n_fft", type=int, default=512, help="")
 main_arg_parser.add_argument("--data_mixup", type=strtobool, default=False, help="")
 
 # Transformation Parameters
-main_arg_parser.add_argument("--data_loudness_ratio", type=float, default=0.08, help="")
+main_arg_parser.add_argument("--data_loudness_ratio", type=float, default=0.2, help="")
-main_arg_parser.add_argument("--data_shift_ratio", type=float, default=0.2, help="")
+main_arg_parser.add_argument("--data_shift_ratio", type=float, default=0.4, help="")
 main_arg_parser.add_argument("--data_noise_ratio", type=float, default=0.15, help="")
 
 # Training Parameters
@@ -36,9 +39,10 @@ main_arg_parser.add_argument("--train_outpath", type=str, default="output", help
 main_arg_parser.add_argument("--train_version", type=strtobool, required=False, help="")
 # FIXME: Stochastic weight Avaraging is not good, maybe its my implementation?
 main_arg_parser.add_argument("--train_sto_weight_avg", type=strtobool, default=False, help="")
+main_arg_parser.add_argument("--train_opt_reset_interval", type=int, default=300, help="")
 main_arg_parser.add_argument("--train_epochs", type=int, default=600, help="")
 main_arg_parser.add_argument("--train_batch_size", type=int, default=250, help="")
-main_arg_parser.add_argument("--train_lr", type=float, default=1e-3, help="")
+main_arg_parser.add_argument("--train_lr", type=float, default=1e-4, help="")
 main_arg_parser.add_argument("--train_num_sanity_val_steps", type=int, default=0, help="")
 
 # Model Parameters
@@ -46,12 +50,12 @@ main_arg_parser.add_argument("--model_type", type=str, default="ConvClassifier",
 main_arg_parser.add_argument("--model_secondary_type", type=str, default="BandwiseConvMultiheadClassifier", help="")
 main_arg_parser.add_argument("--model_weight_init", type=str, default="xavier_normal_", help="")
 main_arg_parser.add_argument("--model_activation", type=str, default="leaky_relu", help="")
-main_arg_parser.add_argument("--model_filters", type=str, default="[16, 32, 64, 128]", help="")
+main_arg_parser.add_argument("--model_filters", type=str, default="[16, 32, 64, 128, 64]", help="")
 main_arg_parser.add_argument("--model_classes", type=int, default=2, help="")
 main_arg_parser.add_argument("--model_lat_dim", type=int, default=8, help="")
 main_arg_parser.add_argument("--model_bias", type=strtobool, default=True, help="")
 main_arg_parser.add_argument("--model_norm", type=strtobool, default=True, help="")
-main_arg_parser.add_argument("--model_dropout", type=float, default=0.25, help="")
+main_arg_parser.add_argument("--model_dropout", type=float, default=0.0, help="")
 
 # Project Parameters
 main_arg_parser.add_argument("--project_name", type=str, default=_ROOT.name, help="")

main.py

@@ -78,41 +78,44 @@ def run_lightning_loop(config_obj):
 
         # Evaluate It
         if config_obj.main.eval:
-            model.eval()
+            with torch.no_grad():
-            if torch.cuda.is_available():
+                model.eval()
-                model.cuda()
+                if torch.cuda.is_available():
-            outputs = []
+                    model.cuda()
-            from tqdm import tqdm
+                outputs = []
-            for idx, batch in enumerate(tqdm(model.val_dataloader())):
-                batch_x, label = batch
-                outputs.append(
-                    model.validation_step((batch_x.to(device='cuda' if model.on_gpu else 'cpu'), label), idx)
-                )
-                summary_dict = model.validation_epoch_end(outputs)
-            print(summary_dict['log']['uar_score'])
-
-            # trainer.test()
-            outpath = Path(config_obj.train.outpath)
-            model_type = config_obj.model.type
-            parameters = logger.name
-            version = f'version_{logger.version}'
-            inference_out = f'{parameters}_test_out.csv'
-
-            from main_inference import prepare_dataloader
-            test_dataloader = prepare_dataloader(config)
-
-            with (outpath / model_type / parameters / version / inference_out).open(mode='w') as outfile:
-                outfile.write(f'file_name,prediction\n')
-
                 from tqdm import tqdm
-                for batch in tqdm(test_dataloader, total=len(test_dataloader)):
+                for idx, batch in enumerate(tqdm(model.val_dataloader()[0])):
-                    batch_x, file_name = batch
+                    batch_x, label = batch
-                    batch_x = batch_x.unsqueeze(0).to(device='cuda' if model.on_gpu else 'cpu')
+                    batch_x = batch_x.to(device='cuda' if model.on_gpu else 'cpu')
-                    y = model(batch_x).main_out
+                    label = label.to(device='cuda' if model.on_gpu else 'cpu')
-                    prediction = (y.squeeze() >= 0.5).int().item()
+                    outputs.append(
-                    import variables as V
+                        model.validation_step((batch_x, label), idx, 1)
-                    prediction = 'clear' if prediction == V.CLEAR else 'mask'
+                    )
-                    outfile.write(f'{file_name},{prediction}\n')
+                    summary_dict = model.validation_epoch_end([outputs])
+                print(summary_dict['log']['uar_score'])
+
+                # trainer.test()
+                outpath = Path(config_obj.train.outpath)
+                model_type = config_obj.model.type
+                parameters = logger.name
+                version = f'version_{logger.version}'
+                inference_out = f'{parameters}_test_out.csv'
+
+                from main_inference import prepare_dataloader
+                test_dataloader = prepare_dataloader(config)
+
+                with (outpath / model_type / parameters / version / inference_out).open(mode='w') as outfile:
+                    outfile.write(f'file_name,prediction\n')
+
+                    from tqdm import tqdm
+                    for batch in tqdm(test_dataloader, total=len(test_dataloader)):
+                        batch_x, file_name = batch
+                        batch_x = batch_x.unsqueeze(0).to(device='cuda' if model.on_gpu else 'cpu')
+                        y = model(batch_x).main_out
+                        prediction = (y.squeeze() >= 0.5).int().item()
+                        import variables as V
+                        prediction = 'clear' if prediction == V.CLEAR else 'mask'
+                        outfile.write(f'{file_name},{prediction}\n')
     return model
 
 

main_inference.py

@@ -23,7 +23,10 @@ from datasets.binar_masks import BinaryMasksDataset
 
 
 def prepare_dataloader(config_obj):
-    mel_transforms = Compose([AudioToMel(n_mels=config_obj.data.n_mels), MelToImage()])
+    mel_transforms = Compose([
+        # Audio to Mel Transformations
+        AudioToMel(sr=config_obj.data.sr, n_mels=config_obj.data.n_mels, n_fft=config_obj.data.n_fft,
+                   hop_length=config_obj.data.hop_length), MelToImage()])
     transforms = Compose([NormalizeLocal(), ToTensor()])
 
     dataset: Dataset = BinaryMasksDataset(config_obj.data.root, setting='test',

models/bandwise_conv_classifier.py

@@ -3,9 +3,9 @@ from argparse import Namespace
 from torch import nn
 from torch.nn import ModuleDict, ModuleList
 
-from ml_lib.modules.blocks import ConvModule
+from ml_lib.modules.blocks import ConvModule, LinearModule
 from ml_lib.modules.utils import (LightningBaseModule, HorizontalSplitter,
-                                  HorizontalMerger)
+                                  HorizontalMerger, F_x)
 from util.module_mixins import (BaseOptimizerMixin, BaseTrainMixin, BaseValMixin, BinaryMaskDatasetFunction,
                                 BaseDataloadersMixin)
 
@@ -54,15 +54,11 @@ class BandwiseConvClassifier(BinaryMaskDatasetFunction,
 
         self.merge = HorizontalMerger(self.conv_dict['conv_3_1'].shape, self.n_band_sections)
 
-        self.full_1 = nn.Linear(self.flat.shape, self.params.lat_dim, self.params.bias)
+        self.full_1 = LinearModule(self.flat.shape, self.params.lat_dim, **self.params.module_kwargs)
-        self.full_2 = nn.Linear(self.full_1.out_features, self.full_1.out_features // 2, self.params.bias)
+        self.full_2 = LinearModule(self.full_1.shape, self.full_1.shape * 2, **self.params.module_kwargs)
+        self.full_3 = LinearModule(self.full_2.shape, self.full_2.out_features // 2, **self.params.module_kwargs)
 
-        self.full_out = nn.Linear(self.full_2.out_features, 1, self.params.bias)
+        self.full_out = LinearModule(self.full_3.shape, 1, bias=self.params.bias, activation=nn.Sigmoid)
-
-        # Utility Modules
-        self.dropout = nn.Dropout2d(self.params.dropout) if self.params.dropout else lambda x: x
-        self.activation = self.params.activation()
-        self.sigmoid = nn.Sigmoid()
 
     def forward(self, batch, **kwargs):
         tensors = self.split(batch)
@@ -74,13 +70,8 @@ class BandwiseConvClassifier(BinaryMaskDatasetFunction,
             tensors[idx] = self.conv_dict[f"conv_3_{idx}"](tensor)
 
         tensor = self.merge(tensors)
-        tensor = self.flat(tensor)
         tensor = self.full_1(tensor)
-        tensor = self.activation(tensor)
-        tensor = self.dropout(tensor)
         tensor = self.full_2(tensor)
-        tensor = self.activation(tensor)
+        tensor = self.full_3(tensor)
-        tensor = self.dropout(tensor)
         tensor = self.full_out(tensor)
-        tensor = self.sigmoid(tensor)
         return Namespace(main_out=tensor)

models/bandwise_conv_multihead_classifier.py

@@ -1,12 +1,10 @@
 from argparse import Namespace
-from collections import defaultdict
 
 import torch
 from torch import nn
-from torch.nn import ModuleDict, ModuleList
+from torch.nn import ModuleList
-from torchcontrib.optim import SWA
 
-from ml_lib.modules.blocks import ConvModule
+from ml_lib.modules.blocks import ConvModule, LinearModule
 from ml_lib.modules.utils import (LightningBaseModule, Flatten, HorizontalSplitter)
 from util.module_mixins import (BaseOptimizerMixin, BaseTrainMixin, BaseValMixin, BinaryMaskDatasetFunction,
                                 BaseDataloadersMixin)
@@ -59,49 +57,57 @@ class BandwiseConvMultiheadClassifier(BinaryMaskDatasetFunction,
         self.in_shape = self.dataset.train_dataset.sample_shape
         self.conv_filters = self.params.filters
         self.criterion = nn.BCELoss()
-        self.n_band_sections = 8
+        self.n_band_sections = 4
+        k = 3  # Base Kernel Value
 
         # Modules
         # =============================================================================
         self.split = HorizontalSplitter(self.in_shape, self.n_band_sections)
-        self.conv_dict = ModuleDict()
 
-        self.conv_dict.update({f"conv_1_{band_section}":
+        self.band_list = ModuleList()
-                                   ConvModule(self.split.shape, self.conv_filters[0], 3, conv_stride=1, **self.params.module_kwargs)
+        for band in range(self.n_band_sections):
-                               for band_section in range(self.n_band_sections)}
+            last_shape = self.split.shape
-                              )
+            conv_list = ModuleList()
-        self.conv_dict.update({f"conv_2_{band_section}":
+            for filters in self.conv_filters:
-                                   ConvModule(self.conv_dict['conv_1_1'].shape, self.conv_filters[1], 3, conv_stride=1,
+                conv_list.append(ConvModule(last_shape, filters, (k, k*4), conv_stride=(1, 2),
-                                              **self.params.module_kwargs) for band_section in range(self.n_band_sections)}
+                                            **self.params.module_kwargs))
-                              )
+                last_shape = conv_list[-1].shape
-        self.conv_dict.update({f"conv_3_{band_section}":
+                # self.conv_list.append(ConvModule(last_shape, 1, 1, conv_stride=1, **self.params.module_kwargs))
-                                   ConvModule(self.conv_dict['conv_2_1'].shape, self.conv_filters[2], 3, conv_stride=1,
+                # last_shape = self.conv_list[-1].shape
-                                              **self.params.module_kwargs)
+            self.band_list.append(conv_list)
-                               for band_section in range(self.n_band_sections)}
-                              )
 
-        self.flat = Flatten(self.conv_dict['conv_3_1'].shape)
+        self.bandwise_deep_list_1 = ModuleList([
+            LinearModule(self.band_list[0][-1].shape, self.params.lat_dim * 4, **self.params.module_kwargs)
+            for _ in range(self.n_band_sections)])
+        self.bandwise_deep_list_2 = ModuleList([
+            LinearModule(self.params.lat_dim * 4, self.params.lat_dim * 2, **self.params.module_kwargs)
+            for _ in range(self.n_band_sections)])
         self.bandwise_latent_list = ModuleList([
-            nn.Linear(self.flat.shape, self.params.lat_dim, self.params.bias) for _ in range(self.n_band_sections)])
+            LinearModule(self.params.lat_dim * 2, self.params.lat_dim, **self.params.module_kwargs)
-        self.bandwise_classifier_list = ModuleList([nn.Linear(self.params.lat_dim, 1, self.params.bias)
+            for _ in range(self.n_band_sections)])
-                                                    for _ in range(self.n_band_sections)])
+        self.bandwise_classifier_list = ModuleList([
+            LinearModule(self.params.lat_dim, 1, bias=self.params.bias, activation=nn.Sigmoid)
+            for _ in range(self.n_band_sections)])
 
-        self.full_out = nn.Linear(self.n_band_sections, 1, self.params.bias)
+        self.full_1 = LinearModule(self.n_band_sections, self.params.lat_dim * 4, **self.params.module_kwargs)
-
+        self.full_2 = LinearModule(self.full_1.shape, self.params.lat_dim * 2, **self.params.module_kwargs)
-        # Utility Modules
+        self.full_3 = LinearModule(self.full_2.shape, self.params.lat_dim, **self.params.module_kwargs)
-        self.sigmoid = nn.Sigmoid()
+        self.full_out = LinearModule(self.full_3.shape, 1, bias=self.params.bias, activation=nn.Sigmoid)
 
     def forward(self, batch, **kwargs):
         tensors = self.split(batch)
-        for idx, tensor in enumerate(tensors):
+        for idx, (tensor, convs) in enumerate(zip(tensors, self.band_list)):
-            tensor = self.conv_dict[f"conv_1_{idx}"](tensor)
+            for conv in convs:
-            tensor = self.conv_dict[f"conv_2_{idx}"](tensor)
+                tensor = conv(tensor)
-            tensor = self.conv_dict[f"conv_3_{idx}"](tensor)
+
-            tensor = self.flat(tensor)
+            tensor = self.bandwise_deep_list_1[idx](tensor)
+            tensor = self.bandwise_deep_list_2[idx](tensor)
             tensor = self.bandwise_latent_list[idx](tensor)
-            tensor = self.bandwise_classifier_list[idx](tensor)
+            tensors[idx] = self.bandwise_classifier_list[idx](tensor)
-            tensors[idx] = self.sigmoid(tensor)
+
         tensor = torch.cat(tensors, dim=1)
+        tensor = self.full_1(tensor)
+        tensor = self.full_2(tensor)
+        tensor = self.full_3(tensor)
         tensor = self.full_out(tensor)
-        tensor = self.sigmoid(tensor)
         return Namespace(main_out=tensor, bands=tensors)

models/conv_classifier.py

@@ -3,8 +3,8 @@ from argparse import Namespace
 from torch import nn
 from torch.nn import ModuleList
 
-from ml_lib.modules.blocks import ConvModule
+from ml_lib.modules.blocks import ConvModule, LinearModule
-from ml_lib.modules.utils import LightningBaseModule, Flatten
+from ml_lib.modules.utils import LightningBaseModule
 from util.module_mixins import (BaseOptimizerMixin, BaseTrainMixin, BaseValMixin, BinaryMaskDatasetFunction,
                                 BaseDataloadersMixin)
 
@@ -38,38 +38,21 @@ class ConvClassifier(BinaryMaskDatasetFunction,
         for filters in self.conv_filters:
             self.conv_list.append(ConvModule(last_shape, filters, (k, k*2), conv_stride=2, **self.params.module_kwargs))
             last_shape = self.conv_list[-1].shape
-            self.conv_list.appen(ConvModule(last_shape, filters, 1, conv_stride=1, **self.params.module_kwargs))
+            # self.conv_list.append(ConvModule(last_shape, 1, 1, conv_stride=1, **self.params.module_kwargs))
-            last_shape = self.conv_list[-1].shape
+            # last_shape = self.conv_list[-1].shape
-            self.conv_list.appen(ConvModule(last_shape, 1, 1, conv_stride=1, **self.params.module_kwargs))
-            last_shape = self.conv_list[-1].shape
-            k = k+2
 
-        self.flat = Flatten(self.conv_list[-1].shape)
+        self.full_1 = LinearModule(self.flat.shape, self.params.lat_dim, **self.params.module_kwargs)
-        self.full_1 = nn.Linear(self.flat.shape, self.params.lat_dim, self.params.bias)
+        self.full_2 = LinearModule(self.full_1.out_features, self.full_1.out_features * 2, self.params.bias)
-        self.full_2 = nn.Linear(self.full_1.out_features, self.full_1.out_features * 2, self.params.bias)
+        self.full_3 = LinearModule(self.full_2.out_features, self.full_2.out_features // 2, self.params.bias)
-        self.full_3 = nn.Linear(self.full_2.out_features, self.full_2.out_features // 2, self.params.bias)
 
-        self.full_out = nn.Linear(self.full_3.out_features, 1, self.params.bias)
+        self.full_out = LinearModule(self.full_3.out_features, 1, bias=self.params.bias, activation=nn.Sigmoid)
-
-        # Utility Modules
-        self.dropout = nn.Dropout2d(self.params.dropout) if self.params.dropout else lambda x: x
-        self.activation = self.params.activation()
-        self.sigmoid = nn.Sigmoid()
 
     def forward(self, batch, **kwargs):
         tensor = batch
         for conv in self.conv_list:
             tensor = conv(tensor)
-        tensor = self.flat(tensor)
         tensor = self.full_1(tensor)
-        tensor = self.activation(tensor)
-        tensor = self.dropout(tensor)
         tensor = self.full_2(tensor)
-        tensor = self.activation(tensor)
-        tensor = self.dropout(tensor)
         tensor = self.full_3(tensor)
-        tensor = self.activation(tensor)
-        tensor = self.dropout(tensor)
         tensor = self.full_out(tensor)
-        tensor = self.sigmoid(tensor)
         return Namespace(main_out=tensor)

util/module_mixins.py

@@ -14,6 +14,7 @@ from torchvision.transforms import Compose, RandomApply
 
 from ml_lib.audio_toolset.audio_augmentation import NoiseInjection, LoudnessManipulator, ShiftTime
 from ml_lib.audio_toolset.audio_io import AudioToMel, MelToImage, NormalizeLocal
+from ml_lib.modules.utils import LightningBaseModule
 from ml_lib.utils.transforms import ToTensor
 
 import variables as V
@@ -22,6 +23,7 @@ import variables as V
 class BaseOptimizerMixin:
 
     def configure_optimizers(self):
+        assert isinstance(self, LightningBaseModule)
         opt = Adam(params=self.parameters(), lr=self.params.lr)
         if self.params.sto_weight_avg:
             opt = SWA(opt, swa_start=10, swa_freq=5, swa_lr=0.05)
@@ -33,7 +35,7 @@ class BaseOptimizerMixin:
                 opt.swap_swa_sgd()
 
     def on_epoch_end(self):
-        if False:  # FIXME: Pass a new parameter to model args.
+        if self.params.opt_reset_interval:
             if self.current_epoch % self.params.opt_reset_interval == 0:
                 for opt in self.trainer.optimizers:
                     opt.state = defaultdict(dict)
@@ -42,6 +44,7 @@ class BaseOptimizerMixin:
 class BaseTrainMixin:
 
     def training_step(self, batch_xy, batch_nb, *args, **kwargs):
+        assert isinstance(self, LightningBaseModule)
         batch_x, batch_y = batch_xy
         y = self(batch_x).main_out
         loss = self.criterion(y, batch_y)
@@ -60,7 +63,7 @@ class BaseValMixin:
 
     absolute_loss = L1Loss()
 
-    def validation_step(self, batch_xy, batch_idx, *args, **kwargs):
+    def validation_step(self, batch_xy, batch_idx, dataloader_idx, *args, **kwargs):
         batch_x, batch_y = batch_xy
         y = self(batch_x).main_out
         val_bce_loss = self.criterion(y, batch_y)
@@ -69,52 +72,63 @@ class BaseValMixin:
                     batch_idx=batch_idx, y=y, batch_y=batch_y
                     )
 
-    def validation_epoch_end(self, outputs):
+    def validation_epoch_end(self, outputs, *args, **kwargs):
-        keys = list(outputs[0].keys())
+        summary_dict = dict(log=dict())
+        for output_idx, output in enumerate(outputs):
+            keys = list(output[0].keys())
+            ident = '' if output_idx == 0 else '_train'
+            summary_dict['log'].update({f'mean{ident}_{key}': torch.mean(torch.stack([output[key]
+                                                                                      for output in output]))
+                                        for key in keys if 'loss' in key}
+                                       )
 
-        summary_dict = dict(log={f'mean_{key}': torch.mean(torch.stack([output[key]
+            # UnweightedAverageRecall
-                                                                        for output in outputs]))
+            y_true = torch.cat([output['batch_y'] for output in output]) .cpu().numpy()
-                                 for key in keys if 'loss' in key})
+            y_pred = torch.cat([output['y'] for output in output]).squeeze().cpu().numpy()
 
-        # UnweightedAverageRecall
+            y_pred = (y_pred >= 0.5).astype(np.float32)
-        y_true = torch.cat([output['batch_y'] for output in outputs]) .cpu().numpy()
-        y_pred = torch.cat([output['y'] for output in outputs]).squeeze().cpu().numpy()
 
-        y_pred = (y_pred >= 0.5).astype(np.float32)
+            uar_score = sklearn.metrics.recall_score(y_true, y_pred, labels=[0, 1], average='macro',
+                                                     sample_weight=None, zero_division='warn')
 
-        uar_score = sklearn.metrics.recall_score(y_true, y_pred, labels=[0, 1], average='macro',
+            summary_dict['log'].update({f'uar{ident}_score': uar_score})
-                                                 sample_weight=None, zero_division='warn')
-        summary_dict['log'].update(uar_score=uar_score)
         return summary_dict
 
 
 class BinaryMaskDatasetFunction:
 
     def build_dataset(self):
+        assert isinstance(self, LightningBaseModule)
 
         # Dataset
         # =============================================================================
         # Mel Transforms
         mel_transforms = Compose([
             # Audio to Mel Transformations
-            AudioToMel(n_mels=self.params.n_mels), MelToImage()])
+            AudioToMel(sr=self.params.sr, n_mels=self.params.n_mels, n_fft=self.params.n_fft,
+                       hop_length=self.params.hop_length), MelToImage()])
         # Data Augmentations
         aug_transforms = Compose([
             RandomApply([
-            NoiseInjection(self.params.noise_ratio),
+                NoiseInjection(self.params.noise_ratio),
-            LoudnessManipulator(self.params.loudness_ratio),
+                LoudnessManipulator(self.params.loudness_ratio),
-            ShiftTime(self.params.shift_ratio)], p=0.5),
+                ShiftTime(self.params.shift_ratio)], p=0.5),
             # Utility
             NormalizeLocal(), ToTensor()
         ])
         val_transforms = Compose([NormalizeLocal(), ToTensor()])
 
+        # sampler = RandomSampler(train_dataset, True, len(train_dataset)) if params['bootstrap'] else None
+
         # Datasets
         from datasets.binar_masks import BinaryMasksDataset
         dataset = Namespace(
             **dict(
-                train_dataset=BinaryMasksDataset(self.params.root, setting=V.DATA_OPTIONS.train, mixup=self.params.mixup,
+                train_dataset=BinaryMasksDataset(self.params.root, setting=V.DATA_OPTIONS.train,
+                                                 mixup=self.params.mixup,
                                                  mel_transforms=mel_transforms, transforms=aug_transforms),
+                val_train_dataset=BinaryMasksDataset(self.params.root, setting=V.DATA_OPTIONS.train,
+                                                     mel_transforms=mel_transforms, transforms=val_transforms),
                 val_dataset=BinaryMasksDataset(self.params.root, setting=V.DATA_OPTIONS.devel,
                                                mel_transforms=mel_transforms, transforms=val_transforms),
                 test_dataset=BinaryMasksDataset(self.params.root, setting=V.DATA_OPTIONS.test,
@@ -142,6 +156,9 @@ class BaseDataloadersMixin(ABC):
 
     # Validation Dataloader
     def val_dataloader(self):
-        return DataLoader(dataset=self.dataset.val_dataset, shuffle=True,
+        val_dataloader = DataLoader(dataset=self.dataset.val_dataset, shuffle=True,
-                          batch_size=self.params.batch_size,
+                                    batch_size=self.params.batch_size, num_workers=self.params.worker)
-                          num_workers=self.params.worker)
+
+        train_dataloader = DataLoader(self.dataset.val_train_dataset, num_workers=self.params.worker,
+                                      batch_size=self.params.batch_size, shuffle=False)
+        return [val_dataloader, train_dataloader]