t-sakai-kure / pywsl Goto Github PK

PNU/python/cpe_ene.py:49: RuntimeWarning: invalid value encountered in sqrt
  return np.sqrt(dist)
PNU/python/pnu_sl.py:152: RuntimeWarning: invalid value encountered in greater_equal
  f_p = np.mean(g_n >= 0) if n_n != 0 else 0
PNU/python/pnu_sl.py:161: RuntimeWarning: invalid value encountered in less_equal
  f_nu = np.mean(g_u <= 0) if n_u != 0 else 0
Traceback (most recent call last):
  File "./demo.py", line 64, in <module>
    model='lm', nargout=3)
  File "PNU/python/pnu_sl.py", line 92,in PNU_SL
    sigma, lam = sigma_list[best_sigma_index], lambda_list[best_lambda_index]
UnboundLocalError: local variable 'best_sigma_index' referenced before assignment

Hello, I've been trying to run the demo file, and encountered an error presented above.
any way to fix this?
Thanks in advance.

Hello.

Currently, PNU_SL function internally computes the cross validation score. I'd like to use PNU classification with a scikit-learn cross validator. Is it possible to implement PNU_SL class conforming to scikit-learn?

Thank you.

Hi,
When I try to install using pip, I am getting the following error
ERROR: Command "python setup.py egg_info" failed with error code 1 in /tmp/pip-install-dwrj5xhj/pywsl/

Could you please check if installation is working properly?

I was looking at your nnPU chainer implementation. If I am not mistaken, it seems to download data from mldata.org. This sklearn issue report discusses the instability of mldata.org and how it often goes down for extended periods of time. For example, mldata.org is down at the moment.

When you run the fetch_mldata command, you get the warning in sklearn:

DeprecationWarning: Function fetch_mldata is deprecated; fetch_mldata was deprecated in version 0.20 and will be removed in version 0.22

What are your thoughts on moving away from fetch_mldata to an alternative? Different alternatives include:

• Hosting the file on Github (probably in a different repository)
• Moving to another source for the data, e.g., torchvision

I would be happy to work with you on this if you are interested.