def test_cross_validation(self):
cfg = Config()
axi = xapian.Database(cfg.axi)
packages = ["gimp","aaphoto","eog","emacs","dia","ferret",
"festival","file","inkscape","xpdf"]
path = "test_data/.sample_axi"
sample_axi = SampleAptXapianIndex(packages,axi,path)
rec = Recommender(cfg)
rec.items_repository = sample_axi
user = User({"gimp":1,"aaphoto":1,"eog":1,"emacs":1})
metrics = []
metrics.append(Precision())
metrics.append(Recall())
metrics.append(F1())
validation = CrossValidation(0.3,5,rec,metrics,0.5)
validation.run(user)
print validation
from user import RandomPopcon,LocalSystem,PopconSystem
if __name__ == '__main__':
cfg = Config()
rec = Recommender(cfg)
#user = LocalSystem()
#user = RandomPopcon(cfg.popcon_dir)
#user = RandomPopcon(cfg.popcon_dir,os.path.join(cfg.filters_dir,"desktopapps"))
user = PopconSystem(os.path.expanduser("~/.app-recommender/popcon-entries/00/0001166d0737c6dffb083071e5ee69f5"))
user.filter_pkg_profile(os.path.join(cfg.filters_dir,"desktopapps"))
user.maximal_pkg_profile()
begin_time = datetime.datetime.now()
metrics = []
metrics.append(Precision())
metrics.append(Recall())
metrics.append(F_score(0.5))
metrics.append(Accuracy())
metrics.append(FPR())
validation = CrossValidation(0.9,20,rec,metrics,0.005)
validation.run(user)
print validation
end_time = datetime.datetime.now()
delta = end_time - begin_time
logging.info("Cross-validation for user %s" % user.user_id)
logging.info("Recommender strategy: %s" % rec.strategy.description)
logging.debug("Cross-validation started at %s" % begin_time)
logging.debug("Cross-validation completed at %s" % end_time)
logging.info("Time elapsed: %d seconds." % delta.seconds)