Kernel Restarting The kernel appears to have died. It will restart automatically.

[RaviTej581]

from libtsvm.estimators import TSVM
from tensorflow.keras import backend as K
m_temp = tf.keras.Model(inputs=model.input, outputs=model.get_layer('drop_out').output)
t = m_temp.predict(train_ids)
arr = K.eval(t)

lssvc_concat = TSVM(kernel='linear') # Class instantiation

lssvc_concat.fit(arr, train_labels.ravel()) # Fitting the mode

This is my code. I have taken the weights from some deep learning model and I am trying to add the classifier TSVM. Until class instantiation, it is working fine. But while fitting, I am getting like "The kernel appears to have died. It will restart automatically". Kindly help me in this regard.

Thanks in advance...

[mir-am]

Thanks for using LIBTwinSVM and reporting an issue.
Mentioning the kernel, I assume that you are using a Jupyter notebook.
To further debug the issue, I would suggest monitoring the memory usage of your kernel process using htop on Linux or Task Manager on Windows. A kernel usually dies due to the out-of-memory error.

Also, what is the dimension of your input dataset, arr?

[xizepu]

from libtsvm.optimizer import clipdcd
ImportError: cannot import name 'clipdcd' from 'libtsvm.optimizer' (/Users/zepu/Documents/LIBTwinSVM/libtsvm/optimizer/init.py)

No clipdcd module

OS: Mac
Python Version: py3.8.3

cd optimizer
$ ls
__init__.py    __pycache__    armadillo-code setup.py       src

[mir-am]

@xizepu
Have you installed LibTwinSVM using pip?
Also, note that the optimizer module may not work with macOS. At the moment, we do not have compiled binary wheels for macOS.

[xizepu]

@mir-am Hi, I reinstall LibTwinSVM using pip and success run in macOS. Many thanks!

[xizepu]

Now I install LibTwinSVM for Windows11

C:\WINDOWS\system32>pip install numpy cython
Looking in indexes: https://pypi.tuna.tsinghua.edu.cn/simple
Requirement already satisfied: numpy in c:\programdata\anaconda3\lib\site-packages (1.21.4)
Requirement already satisfied: cython in c:\programdata\anaconda3\lib\site-packages (0.29.28)

the errors:

Building wheels for collected packages: LIBTwinSVM
  Building wheel for LIBTwinSVM (setup.py) ... error
  error: subprocess-exited-with-error

  × python setup.py bdist_wheel did not run successfully.
  │ exit code: 1
  ╰─> [83 lines of output]
      Added LAPACK and BLAS DLLs to the wheel for Windows platform.

Maybe the git subprocess?

[xizepu]

Maybe the Python version is not suit for it. I install

C:\Users\Lenovo\Desktop\SciLab\LIBTwinSVM>python --version
Python 3.8.10

the errors is

No module named 'numpy.distutils._msvccompiler' in numpy.distutils; trying from distutils

let me install python 3.7.

[mir-am]

Unfortunately, I have not tested LibTwinSVM with Python 3.8 and newer. It is tested up to Python 3.7.

[xizepu]

@mir-am OK, many thanks! Great jobs!

[xizepu]

@mir-am Hi, the same errors on Python 3.7

1st, I try to install LIBTwinSVM from the source, but the compile errors.

2nd, I install LIBTwinSVM from pip install libtsvm:

LIBTwinSVM                    0.3.0

In python

(LIBTwinSVM) C:\Users\Lenovo\Desktop\SciLab\LIBTwinSVM>python
Python 3.7.13 (default, Mar 28 2022, 08:03:21) [MSC v.1916 64 bit (AMD64)] :: Anaconda, Inc. on win32
Type "help", "copyright", "credits" or "license" for more information.
>>> import libtsvm
>>> help(libtsvm)
Help on package libtsvm:

NAME
    libtsvm

DESCRIPTION
    # LIBTwinSVM: A Library for Twin Support Vector Machines
    # Developers: Mir, A. and Mahdi Rahbar
    # License: GNU General Public License v3.0

However, when I try GUI, the errors:

(LIBTwinSVM) C:\Users\Lenovo\Desktop\SciLab\LIBTwinSVM>python -m libtsvm
Traceback (most recent call last):
  File "C:\ProgramData\Anaconda3\envs\LIBTwinSVM\lib\runpy.py", line 193, in _run_module_as_main
    "__main__", mod_spec)
  File "C:\ProgramData\Anaconda3\envs\LIBTwinSVM\lib\runpy.py", line 85, in _run_code
    exec(code, run_globals)
  File "C:\Users\Lenovo\Desktop\SciLab\LIBTwinSVM\libtsvm\__main__.py", line 8, in <module>
    from libtsvm.app import main
  File "C:\Users\Lenovo\Desktop\SciLab\LIBTwinSVM\libtsvm\app.py", line 13, in <module>
    from libtsvm.model import UserInput
  File "C:\Users\Lenovo\Desktop\SciLab\LIBTwinSVM\libtsvm\model.py", line 12, in <module>
    from libtsvm.estimators import TSVM, LSTSVM
  File "C:\Users\Lenovo\Desktop\SciLab\LIBTwinSVM\libtsvm\estimators.py", line 14, in <module>
    from libtsvm.optimizer import clipdcd
ImportError: cannot import name 'clipdcd' from 'libtsvm.optimizer' (C:\Users\Lenovo\Desktop\SciLab\LIBTwinSVM\libtsvm\optimizer\__init__.py)

[mir-am]

@xizepu
Note that you should NOT run python -m libtsvm in the project repository root. Run the command in another folder, e.g., C:\Users\Lenovo\Desktop\.