[ENH] Add load_model functionality for regression ensemble models

[khansalman12]

Reference Issues/PRs

Addresses #2673

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What does this implement/fix? Explain your changes.

• Implementation: Adds load_model functionality for InceptionTimeRegressor and LITETimeRegressor to enable loading pre-trained regression ensemble models.
• Testing: Introduces a comprehensive test suite to validate the load_model functionality, including prediction consistency and error handling.
• Fix: Corrects the is_fitted flag for loaded models to ensure proper state tracking.

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PR Checklist

For all contributions

• I've added myself to the list of contributors.
• The PR title starts with [ENH] (enhancement).

For new estimators and functions

• Added load_model docstrings to the API documentation.
• (Optional) Added myself as a maintainer to relevant files.

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Does your contribution introduce a new dependency?

No new dependencies are introduced.

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[MatthewMiddlehurst]

Please use the template.

[inclinedadarsh]

Hey @MatthewMiddlehurst , the issue this person's working on is #2641, which was opened by me.

I have also mentioned in the issue itself that I'd love to work on it.

I didn't work on it because I was waiting for approval of the maintainers and also to get #2631 reviewed so I understand if any other changes have to be made.

[khansalman12]

Hi @MatthewMiddlehurst,

I have updated the PR description to follow the template. Let me know if any further adjustments are needed.

[MatthewMiddlehurst]

The code quality tests are failing currently.

@inclinedadarsh unfortunate but i'm not going to stop people from creating PRs for unassigned open issues

[inclinedadarsh]

Oh okay.
Didn't know this, but sorry for the bother.

[hadifawaz1999]

thanks for this, will review it soon !

[MatthewMiddlehurst]

Please fix the failing test.

[khansalman12]

Please fix the failing test.

Please fix the failing test.

HI @MatthewMiddlehurst ,

please find the Pull Request (PR) below , all the test case are passed except 2 skipped:

• [ENH] Implement model loading functionality for InceptionTimeRegressor #2726

Let me know if any further adjustments are needed.

[MatthewMiddlehurst]

Please do not create multiple PRs, just update the current one by committing unless the changes required are substantial. Can you select one and reference the other in the comments please (you already have here so dont need to if you close the other).

[khansalman12]

Please do not create multiple PRs, just update the current one by committing unless the changes required are substantial. Can you select one and reference the other in the comments please (you already have here so dont need to if you close the other).

Hi @MatthewMiddlehurst , apologise for not closing this PR, as referred in this thread

please find the Pull Request (PR) below , all the test case are passed except 2 skipped:

#2726

Looking forward your comment in PR no : 2726.