602 lines
27 KiB
Python
602 lines
27 KiB
Python
def warn(*args, **kwargs):
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pass
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import warnings
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warnings.warn = warn
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import os
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import zipfile
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from os.path import join
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import pandas as pd
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from quapy.data.base import Dataset, LabelledCollection
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from quapy.data.preprocessing import text2tfidf, reduce_columns
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from quapy.data.reader import *
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from quapy.util import download_file_if_not_exists, download_file, get_quapy_home, pickled_resource
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REVIEWS_SENTIMENT_DATASETS = ['hp', 'kindle', 'imdb']
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TWITTER_SENTIMENT_DATASETS_TEST = ['gasp', 'hcr', 'omd', 'sanders',
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'semeval13', 'semeval14', 'semeval15', 'semeval16',
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'sst', 'wa', 'wb']
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TWITTER_SENTIMENT_DATASETS_TRAIN = ['gasp', 'hcr', 'omd', 'sanders',
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'semeval', 'semeval16',
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'sst', 'wa', 'wb']
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UCI_DATASETS = ['acute.a', 'acute.b',
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'balance.1', 'balance.2', 'balance.3',
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'breast-cancer',
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'cmc.1', 'cmc.2', 'cmc.3',
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'ctg.1', 'ctg.2', 'ctg.3',
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#'diabetes', # <-- I haven't found this one...
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'german',
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'haberman',
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'ionosphere',
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'iris.1', 'iris.2', 'iris.3',
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'mammographic',
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'pageblocks.5',
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#'phoneme', # <-- I haven't found this one...
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'semeion',
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'sonar',
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'spambase',
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'spectf',
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'tictactoe',
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'transfusion',
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'wdbc',
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'wine.1', 'wine.2', 'wine.3',
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'wine-q-red', 'wine-q-white',
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'yeast']
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LEQUA2022_TASKS = ['T1A', 'T1B', 'T2A', 'T2B']
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_TXA_SAMPLE_SIZE = 250
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_TXB_SAMPLE_SIZE = 1000
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LEQUA2022_SAMPLE_SIZE = {
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'TXA': _TXA_SAMPLE_SIZE,
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'TXB': _TXB_SAMPLE_SIZE,
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'T1A': _TXA_SAMPLE_SIZE,
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'T1B': _TXB_SAMPLE_SIZE,
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'T2A': _TXA_SAMPLE_SIZE,
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'T2B': _TXB_SAMPLE_SIZE,
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'binary': _TXA_SAMPLE_SIZE,
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'multiclass': _TXB_SAMPLE_SIZE
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}
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def fetch_reviews(dataset_name, tfidf=False, min_df=None, data_home=None, pickle=False) -> Dataset:
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"""
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Loads a Reviews dataset as a Dataset instance, as used in
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`Esuli, A., Moreo, A., and Sebastiani, F. "A recurrent neural network for sentiment quantification."
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Proceedings of the 27th ACM International Conference on Information and Knowledge Management. 2018. <https://dl.acm.org/doi/abs/10.1145/3269206.3269287>`_.
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The list of valid dataset names can be accessed in `quapy.data.datasets.REVIEWS_SENTIMENT_DATASETS`
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:param dataset_name: the name of the dataset: valid ones are 'hp', 'kindle', 'imdb'
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:param tfidf: set to True to transform the raw documents into tfidf weighted matrices
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:param min_df: minimun number of documents that should contain a term in order for the term to be
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kept (ignored if tfidf==False)
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:param data_home: specify the quapy home directory where collections will be dumped (leave empty to use the default
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~/quay_data/ directory)
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:param pickle: set to True to pickle the Dataset object the first time it is generated, in order to allow for
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faster subsequent invokations
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:return: a :class:`quapy.data.base.Dataset` instance
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"""
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assert dataset_name in REVIEWS_SENTIMENT_DATASETS, \
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f'Name {dataset_name} does not match any known dataset for sentiment reviews. ' \
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f'Valid ones are {REVIEWS_SENTIMENT_DATASETS}'
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if data_home is None:
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data_home = get_quapy_home()
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URL_TRAIN = f'https://zenodo.org/record/4117827/files/{dataset_name}_train.txt'
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URL_TEST = f'https://zenodo.org/record/4117827/files/{dataset_name}_test.txt'
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os.makedirs(join(data_home, 'reviews'), exist_ok=True)
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train_path = join(data_home, 'reviews', dataset_name, 'train.txt')
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test_path = join(data_home, 'reviews', dataset_name, 'test.txt')
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download_file_if_not_exists(URL_TRAIN, train_path)
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download_file_if_not_exists(URL_TEST, test_path)
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pickle_path = None
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if pickle:
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pickle_path = join(data_home, 'reviews', 'pickle', f'{dataset_name}.pkl')
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data = pickled_resource(pickle_path, Dataset.load, train_path, test_path, from_text)
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if tfidf:
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text2tfidf(data, inplace=True)
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if min_df is not None:
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reduce_columns(data, min_df=min_df, inplace=True)
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data.name = dataset_name
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return data
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def fetch_twitter(dataset_name, for_model_selection=False, min_df=None, data_home=None, pickle=False) -> Dataset:
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"""
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Loads a Twitter dataset as a :class:`quapy.data.base.Dataset` instance, as used in:
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`Gao, W., Sebastiani, F.: From classification to quantification in tweet sentiment analysis.
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Social Network Analysis and Mining6(19), 1–22 (2016) <https://link.springer.com/content/pdf/10.1007/s13278-016-0327-z.pdf>`_
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Note that the datasets 'semeval13', 'semeval14', 'semeval15' share the same training set.
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The list of valid dataset names corresponding to training sets can be accessed in
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`quapy.data.datasets.TWITTER_SENTIMENT_DATASETS_TRAIN`, while the test sets can be accessed in
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`quapy.data.datasets.TWITTER_SENTIMENT_DATASETS_TEST`
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:param dataset_name: the name of the dataset: valid ones are 'gasp', 'hcr', 'omd', 'sanders', 'semeval13',
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'semeval14', 'semeval15', 'semeval16', 'sst', 'wa', 'wb'
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:param for_model_selection: if True, then returns the train split as the training set and the devel split
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as the test set; if False, then returns the train+devel split as the training set and the test set as the
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test set
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:param min_df: minimun number of documents that should contain a term in order for the term to be kept
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:param data_home: specify the quapy home directory where collections will be dumped (leave empty to use the default
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~/quay_data/ directory)
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:param pickle: set to True to pickle the Dataset object the first time it is generated, in order to allow for
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faster subsequent invokations
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:return: a :class:`quapy.data.base.Dataset` instance
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"""
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assert dataset_name in TWITTER_SENTIMENT_DATASETS_TRAIN + TWITTER_SENTIMENT_DATASETS_TEST, \
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f'Name {dataset_name} does not match any known dataset for sentiment twitter. ' \
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f'Valid ones are {TWITTER_SENTIMENT_DATASETS_TRAIN} for model selection and ' \
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f'{TWITTER_SENTIMENT_DATASETS_TEST} for test (datasets "semeval14", "semeval15", "semeval16" share ' \
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f'a common training set "semeval")'
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if data_home is None:
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data_home = get_quapy_home()
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URL = 'https://zenodo.org/record/4255764/files/tweet_sentiment_quantification_snam.zip'
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unzipped_path = join(data_home, 'tweet_sentiment_quantification_snam')
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if not os.path.exists(unzipped_path):
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downloaded_path = join(data_home, 'tweet_sentiment_quantification_snam.zip')
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download_file(URL, downloaded_path)
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with zipfile.ZipFile(downloaded_path) as file:
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file.extractall(data_home)
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os.remove(downloaded_path)
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if dataset_name in {'semeval13', 'semeval14', 'semeval15'}:
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trainset_name = 'semeval'
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testset_name = 'semeval' if for_model_selection else dataset_name
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print(f"the training and development sets for datasets 'semeval13', 'semeval14', 'semeval15' are common "
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f"(called 'semeval'); returning trainin-set='{trainset_name}' and test-set={testset_name}")
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else:
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if dataset_name == 'semeval' and for_model_selection==False:
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raise ValueError('dataset "semeval" can only be used for model selection. '
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'Use "semeval13", "semeval14", or "semeval15" for model evaluation.')
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trainset_name = testset_name = dataset_name
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if for_model_selection:
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train = join(unzipped_path, 'train', f'{trainset_name}.train.feature.txt')
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test = join(unzipped_path, 'test', f'{testset_name}.dev.feature.txt')
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else:
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train = join(unzipped_path, 'train', f'{trainset_name}.train+dev.feature.txt')
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if dataset_name == 'semeval16': # there is a different test name in the case of semeval16 only
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test = join(unzipped_path, 'test', f'{testset_name}.dev-test.feature.txt')
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else:
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test = join(unzipped_path, 'test', f'{testset_name}.test.feature.txt')
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pickle_path = None
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if pickle:
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mode = "train-dev" if for_model_selection else "train+dev-test"
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pickle_path = join(unzipped_path, 'pickle', f'{testset_name}.{mode}.pkl')
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data = pickled_resource(pickle_path, Dataset.load, train, test, from_sparse)
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if min_df is not None:
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reduce_columns(data, min_df=min_df, inplace=True)
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data.name = dataset_name
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return data
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def fetch_UCIDataset(dataset_name, data_home=None, test_split=0.3, verbose=False) -> Dataset:
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"""
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Loads a UCI dataset as an instance of :class:`quapy.data.base.Dataset`, as used in
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`Pérez-Gállego, P., Quevedo, J. R., & del Coz, J. J. (2017).
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Using ensembles for problems with characterizable changes in data distribution: A case study on quantification.
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Information Fusion, 34, 87-100. <https://www.sciencedirect.com/science/article/pii/S1566253516300628>`_
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and
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`Pérez-Gállego, P., Castano, A., Quevedo, J. R., & del Coz, J. J. (2019).
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Dynamic ensemble selection for quantification tasks.
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Information Fusion, 45, 1-15. <https://www.sciencedirect.com/science/article/pii/S1566253517303652>`_.
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The datasets do not come with a predefined train-test split (see :meth:`fetch_UCILabelledCollection` for further
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information on how to use these collections), and so a train-test split is generated at desired proportion.
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The list of valid dataset names can be accessed in `quapy.data.datasets.UCI_DATASETS`
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:param dataset_name: a dataset name
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:param data_home: specify the quapy home directory where collections will be dumped (leave empty to use the default
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~/quay_data/ directory)
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:param test_split: proportion of documents to be included in the test set. The rest conforms the training set
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:param verbose: set to True (default is False) to get information (from the UCI ML repository) about the datasets
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:return: a :class:`quapy.data.base.Dataset` instance
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"""
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data = fetch_UCILabelledCollection(dataset_name, data_home, verbose)
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return Dataset(*data.split_stratified(1 - test_split, random_state=0))
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def fetch_UCILabelledCollection(dataset_name, data_home=None, verbose=False) -> Dataset:
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"""
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Loads a UCI collection as an instance of :class:`quapy.data.base.LabelledCollection`, as used in
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`Pérez-Gállego, P., Quevedo, J. R., & del Coz, J. J. (2017).
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Using ensembles for problems with characterizable changes in data distribution: A case study on quantification.
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Information Fusion, 34, 87-100. <https://www.sciencedirect.com/science/article/pii/S1566253516300628>`_
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and
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`Pérez-Gállego, P., Castano, A., Quevedo, J. R., & del Coz, J. J. (2019).
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Dynamic ensemble selection for quantification tasks.
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Information Fusion, 45, 1-15. <https://www.sciencedirect.com/science/article/pii/S1566253517303652>`_.
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The datasets do not come with a predefined train-test split, and so Pérez-Gállego et al. adopted a 5FCVx2 evaluation
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protocol, meaning that each collection was used to generate two rounds (hence the x2) of 5 fold cross validation.
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This can be reproduced by using :meth:`quapy.data.base.Dataset.kFCV`, e.g.:
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>>> import quapy as qp
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>>> collection = qp.datasets.fetch_UCILabelledCollection("yeast")
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>>> for data in qp.data.Dataset.kFCV(collection, nfolds=5, nrepeats=2):
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>>> ...
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The list of valid dataset names can be accessed in `quapy.data.datasets.UCI_DATASETS`
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:param dataset_name: a dataset name
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:param data_home: specify the quapy home directory where collections will be dumped (leave empty to use the default
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~/quay_data/ directory)
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:param test_split: proportion of documents to be included in the test set. The rest conforms the training set
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:param verbose: set to True (default is False) to get information (from the UCI ML repository) about the datasets
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:return: a :class:`quapy.data.base.Dataset` instance
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"""
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assert dataset_name in UCI_DATASETS, \
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f'Name {dataset_name} does not match any known dataset from the UCI Machine Learning datasets repository. ' \
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f'Valid ones are {UCI_DATASETS}'
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if data_home is None:
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data_home = get_quapy_home()
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dataset_fullname = {
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'acute.a': 'Acute Inflammations (urinary bladder)',
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'acute.b': 'Acute Inflammations (renal pelvis)',
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'balance.1': 'Balance Scale Weight & Distance Database (left)',
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'balance.2': 'Balance Scale Weight & Distance Database (balanced)',
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'balance.3': 'Balance Scale Weight & Distance Database (right)',
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'breast-cancer': 'Breast Cancer Wisconsin (Original)',
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'cmc.1': 'Contraceptive Method Choice (no use)',
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'cmc.2': 'Contraceptive Method Choice (long term)',
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'cmc.3': 'Contraceptive Method Choice (short term)',
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'ctg.1': 'Cardiotocography Data Set (normal)',
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'ctg.2': 'Cardiotocography Data Set (suspect)',
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'ctg.3': 'Cardiotocography Data Set (pathologic)',
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'german': 'Statlog German Credit Data',
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'haberman': "Haberman's Survival Data",
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'ionosphere': 'Johns Hopkins University Ionosphere DB',
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'iris.1': 'Iris Plants Database(x)',
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'iris.2': 'Iris Plants Database(versicolour)',
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'iris.3': 'Iris Plants Database(virginica)',
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'mammographic': 'Mammographic Mass',
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'pageblocks.5': 'Page Blocks Classification (5)',
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'semeion': 'Semeion Handwritten Digit (8)',
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'sonar': 'Sonar, Mines vs. Rocks',
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'spambase': 'Spambase Data Set',
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'spectf': 'SPECTF Heart Data',
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'tictactoe': 'Tic-Tac-Toe Endgame Database',
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'transfusion': 'Blood Transfusion Service Center Data Set',
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'wdbc': 'Wisconsin Diagnostic Breast Cancer',
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'wine.1': 'Wine Recognition Data (1)',
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'wine.2': 'Wine Recognition Data (2)',
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'wine.3': 'Wine Recognition Data (3)',
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'wine-q-red': 'Wine Quality Red (6-10)',
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'wine-q-white': 'Wine Quality White (6-10)',
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'yeast': 'Yeast',
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}
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# the identifier is an alias for the dataset group, it's part of the url data-folder, and is the name we use
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# to download the raw dataset
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identifier_map = {
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'acute.a': 'acute',
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'acute.b': 'acute',
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'balance.1': 'balance-scale',
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'balance.2': 'balance-scale',
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'balance.3': 'balance-scale',
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'breast-cancer': 'breast-cancer-wisconsin',
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'cmc.1': 'cmc',
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'cmc.2': 'cmc',
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'cmc.3': 'cmc',
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'ctg.1': '00193',
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'ctg.2': '00193',
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'ctg.3': '00193',
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'german': 'statlog/german',
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'haberman': 'haberman',
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'ionosphere': 'ionosphere',
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'iris.1': 'iris',
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'iris.2': 'iris',
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'iris.3': 'iris',
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'mammographic': 'mammographic-masses',
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'pageblocks.5': 'page-blocks',
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'semeion': 'semeion',
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'sonar': 'undocumented/connectionist-bench/sonar',
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'spambase': 'spambase',
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'spectf': 'spect',
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'tictactoe': 'tic-tac-toe',
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'transfusion': 'blood-transfusion',
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'wdbc': 'breast-cancer-wisconsin',
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'wine-q-red': 'wine-quality',
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'wine-q-white': 'wine-quality',
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'wine.1': 'wine',
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'wine.2': 'wine',
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'wine.3': 'wine',
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'yeast': 'yeast',
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}
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# the filename is the name of the file within the data_folder indexed by the identifier
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file_name = {
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'acute': 'diagnosis.data',
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'00193': 'CTG.xls',
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'statlog/german': 'german.data-numeric',
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'mammographic-masses': 'mammographic_masses.data',
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'page-blocks': 'page-blocks.data.Z',
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'undocumented/connectionist-bench/sonar': 'sonar.all-data',
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'spect': ['SPECTF.train', 'SPECTF.test'],
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'blood-transfusion': 'transfusion.data',
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'wine-quality': ['winequality-red.csv', 'winequality-white.csv'],
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'breast-cancer-wisconsin': 'breast-cancer-wisconsin.data' if dataset_name=='breast-cancer' else 'wdbc.data'
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}
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# the filename containing the dataset description (if any)
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desc_name = {
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'acute': 'diagnosis.names',
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'00193': None,
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'statlog/german': 'german.doc',
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'mammographic-masses': 'mammographic_masses.names',
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'undocumented/connectionist-bench/sonar': 'sonar.names',
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'spect': 'SPECTF.names',
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'blood-transfusion': 'transfusion.names',
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'wine-quality': 'winequality.names',
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'breast-cancer-wisconsin': 'breast-cancer-wisconsin.names' if dataset_name == 'breast-cancer' else 'wdbc.names'
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}
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identifier = identifier_map[dataset_name]
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filename = file_name.get(identifier, f'{identifier}.data')
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descfile = desc_name.get(identifier, f'{identifier}.names')
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fullname = dataset_fullname[dataset_name]
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URL = f'http://archive.ics.uci.edu/ml/machine-learning-databases/{identifier}'
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data_dir = join(data_home, 'uci_datasets', identifier)
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if isinstance(filename, str): # filename could be a list of files, in which case it will be processed later
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data_path = join(data_dir, filename)
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download_file_if_not_exists(f'{URL}/{filename}', data_path)
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if descfile:
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try:
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download_file_if_not_exists(f'{URL}/{descfile}', f'{data_dir}/{descfile}')
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if verbose:
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print(open(f'{data_dir}/{descfile}', 'rt').read())
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except Exception:
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print('could not read the description file')
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elif verbose:
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print('no file description available')
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print(f'Loading {dataset_name} ({fullname})')
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if identifier == 'acute':
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df = pd.read_csv(data_path, header=None, encoding='utf-16', sep='\t')
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df[0] = df[0].apply(lambda x: float(x.replace(',', '.'))).astype(float, copy=False)
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[_df_replace(df, col) for col in range(1, 6)]
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X = df.loc[:, 0:5].values
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if dataset_name == 'acute.a':
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y = binarize(df[6], pos_class='yes')
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elif dataset_name == 'acute.b':
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y = binarize(df[7], pos_class='yes')
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if identifier == 'balance-scale':
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df = pd.read_csv(data_path, header=None, sep=',')
|
||
if dataset_name == 'balance.1':
|
||
y = binarize(df[0], pos_class='L')
|
||
elif dataset_name == 'balance.2':
|
||
y = binarize(df[0], pos_class='B')
|
||
elif dataset_name == 'balance.3':
|
||
y = binarize(df[0], pos_class='R')
|
||
X = df.loc[:, 1:].astype(float).values
|
||
|
||
if identifier == 'breast-cancer-wisconsin' and dataset_name=='breast-cancer':
|
||
df = pd.read_csv(data_path, header=None, sep=',')
|
||
Xy = df.loc[:, 1:10]
|
||
Xy[Xy=='?']=np.nan
|
||
Xy = Xy.dropna(axis=0)
|
||
X = Xy.loc[:, 1:9]
|
||
X = X.astype(float).values
|
||
y = binarize(Xy[10], pos_class=2)
|
||
|
||
if identifier == 'breast-cancer-wisconsin' and dataset_name=='wdbc':
|
||
df = pd.read_csv(data_path, header=None, sep=',')
|
||
X = df.loc[:, 2:32].astype(float).values
|
||
y = df[1].values
|
||
y = binarize(y, pos_class='M')
|
||
|
||
if identifier == 'cmc':
|
||
df = pd.read_csv(data_path, header=None, sep=',')
|
||
X = df.loc[:, 0:8].astype(float).values
|
||
y = df[9].astype(int).values
|
||
if dataset_name == 'cmc.1':
|
||
y = binarize(y, pos_class=1)
|
||
elif dataset_name == 'cmc.2':
|
||
y = binarize(y, pos_class=2)
|
||
elif dataset_name == 'cmc.3':
|
||
y = binarize(y, pos_class=3)
|
||
|
||
if identifier == '00193':
|
||
df = pd.read_excel(data_path, sheet_name='Data', skipfooter=3)
|
||
df = df[list(range(1,24))] # select columns numbered (number 23 is the target label)
|
||
# replaces the header with the first row
|
||
new_header = df.iloc[0] # grab the first row for the header
|
||
df = df[1:] # take the data less the header row
|
||
df.columns = new_header # set the header row as the df header
|
||
X = df.iloc[:, 0:22].astype(float).values
|
||
y = df['NSP'].astype(int).values
|
||
if dataset_name == 'ctg.1':
|
||
y = binarize(y, pos_class=1) # 1==Normal
|
||
elif dataset_name == 'ctg.2':
|
||
y = binarize(y, pos_class=2) # 2==Suspect
|
||
elif dataset_name == 'ctg.3':
|
||
y = binarize(y, pos_class=3) # 3==Pathologic
|
||
|
||
if identifier == 'statlog/german':
|
||
df = pd.read_csv(data_path, header=None, delim_whitespace=True)
|
||
X = df.iloc[:, 0:24].astype(float).values
|
||
y = df[24].astype(int).values
|
||
y = binarize(y, pos_class=1)
|
||
|
||
if identifier == 'haberman':
|
||
df = pd.read_csv(data_path, header=None)
|
||
X = df.iloc[:, 0:3].astype(float).values
|
||
y = df[3].astype(int).values
|
||
y = binarize(y, pos_class=2)
|
||
|
||
if identifier == 'ionosphere':
|
||
df = pd.read_csv(data_path, header=None)
|
||
X = df.iloc[:, 0:34].astype(float).values
|
||
y = df[34].values
|
||
y = binarize(y, pos_class='b')
|
||
|
||
if identifier == 'iris':
|
||
df = pd.read_csv(data_path, header=None)
|
||
X = df.iloc[:, 0:4].astype(float).values
|
||
y = df[4].values
|
||
if dataset_name == 'iris.1':
|
||
y = binarize(y, pos_class='Iris-setosa') # 1==Setosa
|
||
elif dataset_name == 'iris.2':
|
||
y = binarize(y, pos_class='Iris-versicolor') # 2==Versicolor
|
||
elif dataset_name == 'iris.3':
|
||
y = binarize(y, pos_class='Iris-virginica') # 3==Virginica
|
||
|
||
if identifier == 'mammographic-masses':
|
||
df = pd.read_csv(data_path, header=None, sep=',')
|
||
df[df == '?'] = np.nan
|
||
Xy = df.dropna(axis=0)
|
||
X = Xy.iloc[:, 0:5]
|
||
X = X.astype(float).values
|
||
y = binarize(Xy.iloc[:,5], pos_class=1)
|
||
|
||
if identifier == 'page-blocks':
|
||
data_path_ = data_path.replace('.Z', '')
|
||
if not os.path.exists(data_path_):
|
||
raise FileNotFoundError(f'Warning: file {data_path_} does not exist. If this is the first time you '
|
||
f'attempt to load this dataset, then you have to manually unzip the {data_path} '
|
||
f'and name the extracted file {data_path_} (unfortunately, neither zipfile, nor '
|
||
f'gzip can handle unix compressed files automatically -- there is a repo in GitHub '
|
||
f'https://github.com/umeat/unlzw where the problem seems to be solved anyway).')
|
||
df = pd.read_csv(data_path_, header=None, delim_whitespace=True)
|
||
X = df.iloc[:, 0:10].astype(float).values
|
||
y = df[10].values
|
||
y = binarize(y, pos_class=5) # 5==block "graphic"
|
||
|
||
if identifier == 'semeion':
|
||
df = pd.read_csv(data_path, header=None, delim_whitespace=True )
|
||
X = df.iloc[:, 0:256].astype(float).values
|
||
y = df[263].values # 263 stands for digit 8 (labels are one-hot vectors from col 256-266)
|
||
y = binarize(y, pos_class=1)
|
||
|
||
if identifier == 'undocumented/connectionist-bench/sonar':
|
||
df = pd.read_csv(data_path, header=None, sep=',')
|
||
X = df.iloc[:, 0:60].astype(float).values
|
||
y = df[60].values
|
||
y = binarize(y, pos_class='R')
|
||
|
||
if identifier == 'spambase':
|
||
df = pd.read_csv(data_path, header=None, sep=',')
|
||
X = df.iloc[:, 0:57].astype(float).values
|
||
y = df[57].values
|
||
y = binarize(y, pos_class=1)
|
||
|
||
if identifier == 'spect':
|
||
dfs = []
|
||
for file in filename:
|
||
data_path = join(data_dir, file)
|
||
download_file_if_not_exists(f'{URL}/{file}', data_path)
|
||
dfs.append(pd.read_csv(data_path, header=None, sep=','))
|
||
df = pd.concat(dfs)
|
||
X = df.iloc[:, 1:45].astype(float).values
|
||
y = df[0].values
|
||
y = binarize(y, pos_class=0)
|
||
|
||
if identifier == 'tic-tac-toe':
|
||
df = pd.read_csv(data_path, header=None, sep=',')
|
||
X = df.iloc[:, 0:9].replace('o',0).replace('b',1).replace('x',2).values
|
||
y = df[9].values
|
||
y = binarize(y, pos_class='negative')
|
||
|
||
if identifier == 'blood-transfusion':
|
||
df = pd.read_csv(data_path, sep=',')
|
||
X = df.iloc[:, 0:4].astype(float).values
|
||
y = df.iloc[:, 4].values
|
||
y = binarize(y, pos_class=1)
|
||
|
||
if identifier == 'wine':
|
||
df = pd.read_csv(data_path, header=None, sep=',')
|
||
X = df.iloc[:, 1:14].astype(float).values
|
||
y = df[0].values
|
||
if dataset_name == 'wine.1':
|
||
y = binarize(y, pos_class=1)
|
||
elif dataset_name == 'wine.2':
|
||
y = binarize(y, pos_class=2)
|
||
elif dataset_name == 'wine.3':
|
||
y = binarize(y, pos_class=3)
|
||
|
||
if identifier == 'wine-quality':
|
||
filename = filename[0] if dataset_name=='wine-q-red' else filename[1]
|
||
data_path = join(data_dir, filename)
|
||
download_file_if_not_exists(f'{URL}/{filename}', data_path)
|
||
df = pd.read_csv(data_path, sep=';')
|
||
X = df.iloc[:, 0:11].astype(float).values
|
||
y = df.iloc[:, 11].values > 5
|
||
|
||
if identifier == 'yeast':
|
||
df = pd.read_csv(data_path, header=None, delim_whitespace=True)
|
||
X = df.iloc[:, 1:9].astype(float).values
|
||
y = df.iloc[:, 9].values
|
||
y = binarize(y, pos_class='NUC')
|
||
|
||
data = LabelledCollection(X, y)
|
||
data.stats()
|
||
return data
|
||
|
||
|
||
def _df_replace(df, col, repl={'yes': 1, 'no':0}, astype=float):
|
||
df[col] = df[col].apply(lambda x:repl[x]).astype(astype, copy=False)
|
||
|
||
|
||
def fetch_lequa2022(task, data_home=None):
|
||
"""
|
||
"""
|
||
from quapy.data._lequa2022 import load_raw_documents, load_vector_documents, SamplesFromDir
|
||
|
||
assert task in LEQUA2022_TASKS, \
|
||
f'Unknown task {task}. Valid ones are {LEQUA2022_TASKS}'
|
||
if data_home is None:
|
||
data_home = get_quapy_home()
|
||
|
||
URL_TRAINDEV=f'https://zenodo.org/record/6546188/files/{task}.train_dev.zip'
|
||
URL_TEST=f'https://zenodo.org/record/6546188/files/{task}.test.zip'
|
||
URL_TEST_PREV=f'https://zenodo.org/record/6546188/files/{task}.test_prevalences.zip'
|
||
|
||
lequa_dir = join(data_home, 'lequa2022')
|
||
os.makedirs(lequa_dir, exist_ok=True)
|
||
|
||
def download_unzip_and_remove(unzipped_path, url):
|
||
tmp_path = join(lequa_dir, task + '_tmp.zip')
|
||
download_file_if_not_exists(url, tmp_path)
|
||
with zipfile.ZipFile(tmp_path) as file:
|
||
file.extractall(unzipped_path)
|
||
os.remove(tmp_path)
|
||
|
||
if not os.path.exists(join(lequa_dir, task)):
|
||
download_unzip_and_remove(lequa_dir, URL_TRAINDEV)
|
||
download_unzip_and_remove(lequa_dir, URL_TEST)
|
||
download_unzip_and_remove(lequa_dir, URL_TEST_PREV)
|
||
|
||
if task in ['T1A', 'T1B']:
|
||
load_fn = load_vector_documents
|
||
elif task in ['T2A', 'T2B']:
|
||
load_fn = load_raw_documents
|
||
|
||
tr_path = join(lequa_dir, task, 'public', 'training_data.txt')
|
||
train = LabelledCollection.load(tr_path, loader_func=load_fn)
|
||
|
||
val_samples_path = join(lequa_dir, task, 'public', 'dev_samples')
|
||
val_true_prev_path = join(lequa_dir, task, 'public', 'dev_prevalences.txt')
|
||
val_gen = SamplesFromDir(val_samples_path, val_true_prev_path, load_fn=load_fn)
|
||
|
||
test_samples_path = join(lequa_dir, task, 'public', 'test_samples')
|
||
test_true_prev_path = join(lequa_dir, task, 'public', 'test_prevalences.txt')
|
||
test_gen = SamplesFromDir(test_samples_path, test_true_prev_path, load_fn=load_fn)
|
||
|
||
return train, val_gen, test_gen
|
||
|