Pyflix - 04/12/2009

Pyflix
If you put your algorithm in a module under the algorithms package (e.g. pyflix.algorithms.myalg.py), you can test it on the probe set and get its RMSE by running:

python pyflix/algorithms/run.py myalg.MyFancyAlgorithm path/to/database

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Under my environment

E:\pyflix-0.1>python pyflix/algorithms/run.py average.DoubleAverage e:\pyflix-0.
1\database
E:\pyflix-0.1\pyflix\_path.py:37: DeprecationWarning: the md5 module is deprecat
ed; use hashlib instead
import sys, warnings, os, fnmatch, glob, shutil, codecs, md5
[********************************************************************] 100%
Computed RMSE in 41 minutes and 56.5 seconds
average.DoubleAverage: RMSE=1.0158

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how to generate a prediction file by DoubleAverage algorithm
modify run.py
(1) beginning
from pyflix.algorithms import Algorithm
from pyflix.algorithms.average import DoubleAverage

(2) main function
rmse = timeCall('Computed RMSE', probe_set.rmse, model, progressbar=True)
print '%s.%s: RMSE=%.4f' % (algorithm.__module__, algorithm.__name__, rmse)

a = DoubleAverage(RatedDataset(basedir/'training_set'))
a.writePredictions('E:/np/download/qualifying.txt','DoubleAverage_pre.txt')

(3) winxp cmd
E:\pyflix-0.1>python pyflix/algorithms/run.py average.DoubleAverage e:\pyflix-0.
1\database
E:\pyflix-0.1\pyflix\_path.py:37: DeprecationWarning: the md5 module is deprecat
ed; use hashlib instead
import sys, warnings, os, fnmatch, glob, shutil, codecs, md5
[********************************************************************] 100%
Computed RMSE in 3 minutes and 59.2 seconds
average.DoubleAverage: RMSE=1.0158
[********************************************************************] 100%
==================================================================================
Submit your prediction file
(1) gzip or zip your file
(2) check the MD5
(3) submit your result (my firefox can't submit, only IE can, weird??)