cross_validation.py
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#!/usr/bin/python
# CrossValidation - python module for classes and methods related to
# recommenders evaluation.
#
# Copyright (C) 2010 Tassia Camoes <tassia@gmail.com>
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
import os
import sys
import logging
import datetime
from datetime import timedelta
from config import *
from data import *
from evaluation import *
from similarity_measure import *
from recommender import *
from strategy import *
from user import *
from error import Error
if __name__ == '__main__':
try:
cfg = Config()
rec = Recommender(cfg)
user = LocalSystem()
user.maximal_pkg_profile()
begin_time = datetime.datetime.now()
logging.debug("Cross-validation started at %s" % begin_time)
metrics = []
metrics.append(Precision())
metrics.append(Recall())
validation = CrossValidation(0.3,10,rec,metrics)
validation.run(user)
print validation
end_time = datetime.datetime.now()
logging.debug("Cross-validation completed at %s" % end_time)
delta = end_time - begin_time
logging.info("Time elapsed: %d seconds." % delta.seconds)
except Error:
logging.critical("Aborting proccess. Use '--debug' for more details.")