baraline/convst

[BUG] BadZipFile and ValueError on Wafer Dataset

Closed this issue · 2 comments

SewoongLee commented

Describe the bug
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There is data loading error in 'Wafer' dataset, while 'GunPoint' is ok.
image

To Reproduce
Steps to reproduce the behavior:
You can reproduce the error by running following file.
https://1drv.ms/f/s!AuU5Lmr0utymk4IKdA1WNoxzkD0tNg

Expected behavior
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Accuracy should be 1 on wafer dataset.

Code example
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Same as above

Environment (please complete the following information):

  • OS: [e.g. iOS] Google colab
  • Version of the convst package [e.g. 0.15] : Latest (0.3.0)

Additional context
Add any other context about the problem here.

baraline commented

Hi, thanks for raising the issue. Next time you create an issue, please paste your code in markdown using ```python your code```. Don't worry, the screenshot does the trick for this simple issue.

I can reproduce the issue on my side. The problem seem to be linked to an update of the source of the data (https://www.timeseriesclassification.com/dataset.php), and the link in the aeon package, which I use to pull the data, was not yet updated.

This should be fixed in the next version of aeon. In the meantime, you can edit the source file (in aeon 0.3) aeon/datasets/_data_loaders.py and modify the _load_dataset function. At line 493, you will find:

url = "https://timeseriesclassification.com/Downloads/%s.zip" % name

Change it to:

url = "https://timeseriesclassification.com/ClassificationDownloads/%s.zip" % name

And now this works as exepcted:

X_train, X_test, y_train, y_test, _ = load_UCR_UEA_dataset_split('Wafer')

Alternatively, the file was already updated on the current verion of aeon on git (see https://github.com/aeon-toolkit/aeon/blob/48075924fd95be0e80cdca131aa71fee22e1017f/aeon/datasets/_data_loaders.py#L452). So you could build aeon from the github sources.

TODO to solve the issue :

  • Update aeon dependency when new version comes out
  • 👍1
  • 😄1
baraline commented

This should be now solved with the new release, updating aeon to >=0.4 should have the same effect.