forked from moreo/QuaPy
118 lines
4.8 KiB
Python
118 lines
4.8 KiB
Python
import argparse
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import pickle
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from sklearn.decomposition import TruncatedSVD
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from sklearn.feature_extraction.text import TfidfVectorizer
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from sklearn.linear_model import LogisticRegression as LR
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from sklearn.pipeline import Pipeline
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from sklearn.preprocessing import StandardScaler
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from LeQua2022.pretrained_embeddings import TfidfWordEmbeddingTransformer, WordEmbeddingAverageTransformer
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from LeQua2022.word_class_embeddings import WordClassEmbeddingsTransformer, ConcatenateEmbeddingsTransformer
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from quapy.method.aggregative import *
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from quapy.method.non_aggregative import MaximumLikelihoodPrevalenceEstimation as MLPE
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import quapy.functional as F
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from data import *
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import os
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import constants
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# LeQua official baselines for task T1A (Binary/Vector) and T1B (Multiclass/Vector)
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# =========================================================
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def baselines():
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yield CC(LR(n_jobs=-1)), "CC"
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# yield ACC(LR(n_jobs=-1)), "ACC"
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# yield PCC(LR(n_jobs=-1)), "PCC"
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# yield PACC(LR(n_jobs=-1)), "PACC"
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# yield EMQ(CalibratedClassifierCV(LR(), n_jobs=-1)), "SLD"
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# yield HDy(LR(n_jobs=-1)) if args.task == 'T2A' else OneVsAll(HDy(LR()), n_jobs=-1), "HDy"
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# yield MLPE(), "MLPE"
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def main(args):
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models_path = qp.util.create_if_not_exist(os.path.join(args.modeldir, args.task))
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path_dev_vectors = os.path.join(args.datadir, 'dev_samples')
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path_dev_prevs = os.path.join(args.datadir, 'dev_prevalences.txt')
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path_train = os.path.join(args.datadir, 'training_data.txt')
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qp.environ['SAMPLE_SIZE'] = constants.SAMPLE_SIZE[args.task]
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train = LabelledCollection.load(path_train, load_raw_documents)
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tfidf = TfidfVectorizer(min_df=5, sublinear_tf=True, ngram_range=(1,2))
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train.instances = tfidf.fit_transform(*train.Xy)
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print(f'number of classes: {len(train.classes_)}')
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print(f'number of training documents: {len(train)}')
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print(f'training prevalence: {F.strprev(train.prevalence())}')
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print(f'training matrix shape: {train.instances.shape}')
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# param_grid = {
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# 'C': np.logspace(-3, 3, 7),
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# 'class_weight': ['balanced', None]
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# }
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param_grid = {
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'C': [1],
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'class_weight': ['balanced']
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}
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def gen_samples():
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return gen_load_samples(path_dev_vectors, ground_truth_path=path_dev_prevs,
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load_fn=load_raw_unlabelled_documents, vectorizer=tfidf)
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outs = []
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for quantifier, q_name in baselines():
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print(f'{q_name}: Model selection')
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quantifier = qp.model_selection.GridSearchQ(
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quantifier,
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param_grid,
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sample_size=None,
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protocol='gen',
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error=qp.error.mrae,
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refit=False,
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verbose=True
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).fit(train, gen_samples)
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print(f'{q_name} got MAE={quantifier.best_score_:.5f} (hyper-params: {quantifier.best_params_})')
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outs.append(f'{q_name} got MAE={quantifier.best_score_:.5f} (hyper-params: {quantifier.best_params_})')
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model_path = os.path.join(models_path, q_name+'.'+args.task+'.pkl')
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print(f'saving model in {model_path}')
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pickle.dump(quantifier.best_model(), open(model_path, 'wb'), protocol=pickle.HIGHEST_PROTOCOL)
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print(outs)
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with open(f'{args.mode}.{args.task}.txt', 'wt') as foo:
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for line in outs:
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foo.write(f'{line}\n')
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if __name__ == '__main__':
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parser = argparse.ArgumentParser(description='LeQua2022 Task T2A/T2B baselines')
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parser.add_argument('task', metavar='TASK', type=str, choices=['T2A', 'T2B'],
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help='Task name (T2A, T2B)')
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parser.add_argument('datadir', metavar='DATA-PATH', type=str,
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help='Path of the directory containing "dev_prevalences.txt", "training_data.txt", and '
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'the directory "dev_documents"')
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parser.add_argument('modeldir', metavar='MODEL-PATH', type=str,
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help='Path where to save the models. '
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'A subdirectory named <task> will be automatically created.')
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args = parser.parse_args()
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if not os.path.exists(args.datadir):
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raise FileNotFoundError(f'path {args.datadir} does not exist')
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if not os.path.isdir(args.datadir):
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raise ValueError(f'path {args.datadir} is not a valid directory')
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if not os.path.exists(os.path.join(args.datadir, "dev_prevalences.txt")):
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raise FileNotFoundError(f'path {args.datadir} does not contain "dev_prevalences.txt" file')
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if not os.path.exists(os.path.join(args.datadir, "training_data.txt")):
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raise FileNotFoundError(f'path {args.datadir} does not contain "training_data.txt" file')
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if not os.path.exists(os.path.join(args.datadir, "dev_samples")):
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raise FileNotFoundError(f'path {args.datadir} does not contain "dev_samples" folder')
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main(args)
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