added grid search
parent
e9e2bf1b8a
commit
3ad2d37ea2
71
BERT.py
71
BERT.py
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@ -9,6 +9,7 @@ from transformers import BertForSequenceClassification, AutoTokenizer
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import numpy as np
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from datetime import datetime
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import json
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import itertools
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import Datasets
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import dataset_helper
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@ -52,18 +53,26 @@ class CustomBert(nn.Module):
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if __name__ == '__main__':
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# Hyperparameter und Konfigurationen
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params = {
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# Config
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"max_len": 128,
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# Training
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"epochs": 1,
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"patience": 7,
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"batch_size": 32,
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"learning_rate": 1e-6,
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"weight_decay": 5e-4 ,
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"epochs": [1],
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"patience": [7],
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"learning_rate": [1e-5, 1e-6],
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"weight_decay": [5e-4],
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# Model
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"dropout": 0.6
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"dropout": [0.6]
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}
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# Generate permutations of hyperparameters
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keys, values = zip(*params.items())
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grid_params = [dict(zip(keys, v)) for v in itertools.product(*values)]
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best_params = {}
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best_params_rmse = -1
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# Example usage of grid_params
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# for param_set in grid_params:
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# print(param_set)
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print('Number of grid_params:', len(grid_params))
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# Configs
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GLOVE_PATH = 'data/glove.6B.100d.txt'
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DATA_PATH = 'data/hack.csv'
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@ -72,7 +81,11 @@ if __name__ == '__main__':
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TEST_SIZE = 0.1
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VAL_SIZE = 0.1
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N_MODELS = 2
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MAX_LEN = 280
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BATCH_SIZE = 32
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N_MODELS = 1
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USE_GIRD_SEARCH = True
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models = []
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timestamp = datetime.now().strftime("%Y-%m-%d_%H-%M-%S")
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@ -91,17 +104,29 @@ if __name__ == '__main__':
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print("Tokenizer Initialized")
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# Dataset und DataLoader
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train_dataset = Datasets.BertDataset(tokenizer, data_split['train']['X'], data_split['train']['y'], max_len=params["max_len"])
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val_dataset = Datasets.BertDataset(tokenizer, data_split['val']['X'], data_split['val']['y'], max_len=params["max_len"])
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test_dataset = Datasets.BertDataset(tokenizer, data_split['test']['X'], data_split['test']['y'], max_len=params["max_len"])
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train_dataset = Datasets.BertDataset(tokenizer, data_split['train']['X'], data_split['train']['y'], max_len=MAX_LEN)
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val_dataset = Datasets.BertDataset(tokenizer, data_split['val']['X'], data_split['val']['y'], max_len=MAX_LEN)
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test_dataset = Datasets.BertDataset(tokenizer, data_split['test']['X'], data_split['test']['y'], max_len=MAX_LEN)
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train_loader = DataLoader(train_dataset, batch_size=params["batch_size"], shuffle=True)
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val_loader = DataLoader(val_dataset, batch_size=params["batch_size"], shuffle=False)
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test_loader = DataLoader(test_dataset, batch_size=params["batch_size"], shuffle=False)
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train_loader = DataLoader(train_dataset, batch_size=BATCH_SIZE, shuffle=True)
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val_loader = DataLoader(val_dataset, batch_size=BATCH_SIZE, shuffle=False)
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test_loader = DataLoader(test_dataset, batch_size=BATCH_SIZE, shuffle=False)
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subset_size = len(train_dataset) // N_MODELS
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device = ml_helper.get_device(verbose=True, include_mps=False)
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# assert if N_MODLES > 1, than grid_params should be len 1
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if N_MODELS > 1 and len(grid_params) > 1 or N_MODELS > 1 and USE_GIRD_SEARCH:
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raise ValueError("If N_MODELS > 1, than grid_params should be len 1")
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if not USE_GIRD_SEARCH:
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print('Using best params')
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# load best params
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params_name = f'models/best_params_BERT.json'
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with open(params_name, 'r') as f:
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best_params = json.load(f)
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grid_params = [best_params]
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for i in range(N_MODELS):
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model_name = f'BERT.pt'
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hist_name = f'BERT_history'
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@ -112,7 +137,12 @@ if __name__ == '__main__':
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subset_indices = dataset_helper.ensemble_data_idx(train_dataset.labels, N_MODELS, i, methods='bootstrap')
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train_dataset_sub = Subset(train_dataset, subset_indices)
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train_loader = DataLoader(train_dataset_sub, batch_size=params["batch_size"], shuffle=True)
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train_loader = DataLoader(train_dataset_sub, batch_size=BATCH_SIZE, shuffle=True)
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for para_idx, params in enumerate(grid_params):
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if len(grid_params) > 1:
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model_name = f'BERT_{i}_param_{para_idx}.pt'
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hist_name = f'BERT_{i}_param_{para_idx}_history'
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model = CustomBert(dropout=params["dropout"])
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@ -153,6 +183,15 @@ if __name__ == '__main__':
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test_r2 = r2_score(test_labels, test_preds)
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print(f"Test RMSE: {test_rmse:.4f}, Test MAE: {test_mae:.4f}, Test R²: {test_r2:.4f}")
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if test_rmse > best_params_rmse:
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best_params_rmse = test_rmse
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best_params = params
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if len(grid_params) > 1:
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best_params_name = f'models/best_params_BERT.json'
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with open(best_params_name, 'w') as f:
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json.dump(best_params, f)
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if N_MODELS >1:
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# Ensemble Prediction
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@ -9,6 +9,7 @@ from sklearn.metrics import mean_squared_error, mean_absolute_error, r2_score
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import numpy as np
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from datetime import datetime
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import json
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import itertools
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import Datasets
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import dataset_helper
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@ -108,21 +109,28 @@ class TransformerBinaryClassifier(nn.Module):
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if __name__ == '__main__':
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# Hyperparameter und Konfigurationen
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params = {
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# Config
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"max_len": 280,
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# Training
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"epochs": 1,
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"patience": 7,
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"batch_size": 32,
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"learning_rate": 1e-4, # 1e-4
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"weight_decay": 5e-4 ,
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"epochs": [1],
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"patience": [7],
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"learning_rate": [1e-4], # 1e-4
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"weight_decay": [5e-4],
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# Model
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'nhead': 2, # 5
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"dropout": 0.2,
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'hiden_dim': 2048,
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'num_layers': 6
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'nhead': [2], # 5
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"dropout": [0.2],
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'hiden_dim': [1024, 2048],
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'num_layers': [6]
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}
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# Generate permutations of hyperparameters
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keys, values = zip(*params.items())
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grid_params = [dict(zip(keys, v)) for v in itertools.product(*values)]
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best_params = {}
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best_params_rmse = -1
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# Example usage of grid_params
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# for param_set in grid_params:
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# print(param_set)
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print('Number of grid_params:', len(grid_params))
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# Configs
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GLOVE_PATH = 'data/glove.6B.100d.txt'
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DATA_PATH = 'data/hack.csv'
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@ -130,7 +138,11 @@ if __name__ == '__main__':
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TEST_SIZE = 0.1
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VAL_SIZE = 0.1
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N_MODELS = 2
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MAX_LEN = 280
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BATCH_SIZE = 32
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N_MODELS = 1
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USE_GIRD_SEARCH = True
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models = []
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timestamp = datetime.now().strftime("%Y-%m-%d_%H-%M-%S")
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@ -145,17 +157,29 @@ if __name__ == '__main__':
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data_split = dataset_helper.split_data(X, y, test_size=TEST_SIZE, val_size=VAL_SIZE)
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# Dataset und DataLoader
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train_dataset = Datasets.GloveDataset(data_split['train']['X'], data_split['train']['y'], word_index, max_len=params["max_len"])
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val_dataset = Datasets.GloveDataset(data_split['val']['X'], data_split['val']['y'], word_index, max_len=params["max_len"])
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test_dataset = Datasets.GloveDataset(data_split['test']['X'], data_split['test']['y'], word_index, max_len=params["max_len"])
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train_dataset = Datasets.GloveDataset(data_split['train']['X'], data_split['train']['y'], word_index, max_len=MAX_LEN)
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val_dataset = Datasets.GloveDataset(data_split['val']['X'], data_split['val']['y'], word_index, max_len=MAX_LEN)
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test_dataset = Datasets.GloveDataset(data_split['test']['X'], data_split['test']['y'], word_index, max_len=MAX_LEN)
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train_loader = DataLoader(train_dataset, batch_size=params["batch_size"], shuffle=True)
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val_loader = DataLoader(val_dataset, batch_size=params["batch_size"], shuffle=False)
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test_loader = DataLoader(test_dataset, batch_size=params["batch_size"], shuffle=False)
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train_loader = DataLoader(train_dataset, batch_size=BATCH_SIZE, shuffle=True)
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val_loader = DataLoader(val_dataset, batch_size=BATCH_SIZE, shuffle=False)
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test_loader = DataLoader(test_dataset, batch_size=BATCH_SIZE, shuffle=False)
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subset_size = len(train_dataset) // N_MODELS
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device = ml_helper.get_device(verbose=True, include_mps=False)
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# assert if N_MODLES > 1, than grid_params should be len 1
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if N_MODELS > 1 and len(grid_params) > 1 or N_MODELS > 1 and USE_GIRD_SEARCH:
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raise ValueError("If N_MODELS > 1, than grid_params should be len 1")
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if not USE_GIRD_SEARCH:
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print('Using best params')
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# load best params
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params_name = f'models/best_params_Transformer.json'
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with open(params_name, 'r') as f:
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best_params = json.load(f)
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grid_params = [best_params]
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for i in range(N_MODELS):
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model_name = f'Transformer.pt'
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hist_name = f'Transformer_history'
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@ -166,7 +190,12 @@ if __name__ == '__main__':
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subset_indices = dataset_helper.ensemble_data_idx(train_dataset.labels, N_MODELS, i, methods='bootstrap')
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train_dataset_sub = Subset(train_dataset, subset_indices)
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train_loader = DataLoader(train_dataset_sub, batch_size=params["batch_size"], shuffle=True)
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train_loader = DataLoader(train_dataset_sub, batch_size=BATCH_SIZE, shuffle=True)
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for para_idx, params in enumerate(grid_params):
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if len(grid_params) > 1:
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model_name = f'Transformer_{i}_param_{para_idx}.pt'
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hist_name = f'Transformer_{i}_param_{para_idx}_history'
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# Modell initialisieren
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model = TransformerBinaryClassifier(
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@ -214,6 +243,15 @@ if __name__ == '__main__':
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test_r2 = r2_score(test_labels, test_preds)
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print(f"Test RMSE: {test_rmse:.4f}, Test MAE: {test_mae:.4f}, Test R²: {test_r2:.4f}")
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if test_rmse > best_params_rmse:
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best_params_rmse = test_rmse
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best_params = params
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if len(grid_params) > 1:
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best_params_name = f'models/best_params_Transformer.json'
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with open(best_params_name, 'w') as f:
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json.dump(best_params, f)
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if N_MODELS >1:
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# Ensemble Prediction
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ensemble_test_preds = ml_train.ensemble_predict(models, test_loader, device)
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