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import os |
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import pickle |
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import logging |
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import argparse |
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import sklearn.svm |
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from datetime import datetime |
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from pyActLearn.CASAS.data import CASASData |
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from pyActLearn.CASAS.fuel import CASASFuel |
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from pyActLearn.performance.record import LearningResult |
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from pyActLearn.performance import get_confusion_matrix |
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logger = logging.getLogger(__file__) |
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def training_and_test(token, train_data, test_data, num_classes, result): |
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"""Train and test |
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Args: |
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token (:obj:`str`): token representing this run |
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train_data (:obj:`tuple` of :obj:`numpy.array`): Tuple of training feature and label |
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test_data (:obj:`tuple` of :obj:`numpy.array`): Tuple of testing feature and label |
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num_classes (:obj:`int`): Number of classes |
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result (:obj:`pyActLearn.performance.record.LearningResult`): LearningResult object to hold learning result |
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""" |
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svm_model = sklearn.svm.SVC(kernel='rbf') |
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svm_model.fit(train_data[0], train_data[1].flatten()) |
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# Test |
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predicted_y = svm_model.predict(test_data[0]) |
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# Evaluate the Test and Store Result |
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confusion_matrix = get_confusion_matrix(num_classes=num_classes, |
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label=test_data[1].flatten(), predicted=predicted_y) |
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result.add_record(svm_model, key=token, confusion_matrix=confusion_matrix) |
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if __name__ == '__main__': |
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args_ok = False |
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parser = argparse.ArgumentParser(description='Run Support Vector Machine on single resident CASAS datasets.') |
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parser.add_argument('-d', '--dataset', help='Directory to original datasets') |
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parser.add_argument('-o', '--output', help='Output folder') |
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parser.add_argument('--h5py', help='HDF5 dataset folder') |
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parser.add_argument('-k', '--kernel', help='svm kernel') |
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args = parser.parse_args() |
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# Default parameters |
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log_filename = os.path.basename(__file__).split('.')[0] + \ |
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'-%s.log' % datetime.now().strftime('%y%m%d_%H:%M:%S') |
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# Setup output directory |
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output_dir = args.output |
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if output_dir is not None: |
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output_dir = os.path.abspath(os.path.expanduser(output_dir)) |
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if os.path.exists(output_dir): |
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# Found output_dir, check if it is a directory |
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if not os.path.isdir(output_dir): |
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exit('Output directory %s is found, but not a directory. Abort.' % output_dir) |
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else: |
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# Create directory |
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os.mkdir(output_dir) |
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else: |
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output_dir = '.' |
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log_filename = os.path.join(output_dir, log_filename) |
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# Setup Logging as early as possible |
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logging.basicConfig(level=logging.DEBUG, |
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format='[%(asctime)s] %(name)s:%(levelname)s:%(message)s', |
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handlers=[logging.FileHandler(log_filename), |
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logging.StreamHandler()]) |
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# If dataset is specified, update h5py |
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casas_data_dir = args.dataset |
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if casas_data_dir is not None: |
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casas_data_dir = os.path.abspath(os.path.expanduser(casas_data_dir)) |
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if not os.path.isdir(casas_data_dir): |
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exit('CASAS dataset at %s does not exist. Abort.' % casas_data_dir) |
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# Find h5py dataset first |
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h5py_dir = args.h5py |
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if h5py_dir is not None: |
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h5py_dir = os.path.abspath(os.path.expanduser(h5py_dir)) |
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else: |
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# Default location |
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h5py_dir = os.path.join(output_dir, 'h5py') |
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if os.path.exists(h5py_dir): |
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if not os.path.isdir(h5py_dir): |
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exit('h5py dataset location %s is not a directory. Abort.' % h5py_dir) |
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else: |
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os.mkdir(h5py_dir) |
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# Finish check and creating all directory needed - now load datasets |
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if casas_data_dir is not None: |
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casas_data = CASASData(path=casas_data_dir) |
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casas_data.summary() |
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# SVM needs to use statistical feature with per-sensor and normalization |
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casas_data.populate_feature(method='stat', normalized=True, per_sensor=True) |
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casas_data.export_hdf5(h5py_dir) |
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casas_fuel = CASASFuel(dir_name=h5py_dir) |
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# Prepare learning result |
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result_pkl_file = os.path.join(output_dir, 'result.pkl') |
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result = None |
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if os.path.isfile(result_pkl_file): |
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f = open(result_pkl_file, 'rb') |
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result = pickle.load(f) |
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f.close() |
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if result.data != h5py_dir: |
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logger.error('Result pickle file found for different dataset %s' % result.data) |
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exit('Cannot save learning result at %s' % result_pkl_file) |
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else: |
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result = LearningResult(name='SVM', data=h5py_dir, mode='by_week') |
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num_classes = casas_fuel.get_output_dims() |
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# Open Fuel and get all splits |
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split_list = casas_fuel.get_set_list() |
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train_name = split_list[0] |
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train_set = casas_fuel.get_dataset((train_name,), load_in_memory=True) |
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(train_set_data) = train_set.data_sources |
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for i in range(1, len(split_list)): |
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test_name = split_list[i] |
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test_set = casas_fuel.get_dataset((test_name,), load_in_memory=True) |
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(test_set_data) = test_set.data_sources |
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# run svm |
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logger.info('Training on %s, Testing on %s' % (train_name, test_name)) |
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if result.get_record_by_key(test_name) is None: |
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training_and_test(test_name, train_set_data, test_set_data, num_classes, result) |
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train_name = test_name |
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train_set_data = test_set_data |
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f = open(result_pkl_file, 'wb') |
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pickle.dump(obj=result, file=f, protocol=pickle.HIGHEST_PROTOCOL) |
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f.close() |
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result.export_to_xlsx(os.path.join(output_dir, 'result.xlsx')) |
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TinghuiWang /
pyActLearn
