app_recommender.py
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#!/usr/bin/python
# AppRecommender - A GNU/Linux application recommender
#
# 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
from data import *
from evaluation import *
from similarity_measure import *
from recommender import *
from strategy import *
from user import *
DB_PATH = "/var/lib/debtags/package-tags"
INDEX_PATH = os.path.expanduser("~/.app-recommender/debtags_index")
if __name__ == '__main__':
reindex = 0
if len(sys.argv) == 2:
DB_PATH = sys.argv[1]
reindex = 1
print "reindex true"
elif len(sys.argv) > 2:
print >> sys.stderr, ("Usage: %s [PATH_TO_DEBTAGS_DATABASE]" %
sys.argv[0])
sys.exit(1)
debtags_db = DebtagsDB(DB_PATH)
if not debtags_db.load(): sys.exit(1)
user = LocalSystem()
recommender = Recommender(items_repository=debtags_db,
strategy=ContentBasedStrategy(reindex))
result = recommender.generate_recommendation(user)
result.print_result()
metrics = []
metrics.append(Precision())
metrics.append(Recall())
validation = CrossValidation(0.1,10,recommender,metrics)
validation.run(user)