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Updated Shap saving. #881

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merged 2 commits into from
Mar 1, 2023
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Updated Shap saving. #881

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a21778b
Updated Shap saving. Fixes savings for distributed KernelShap and avo…
RobertSamoilescu Feb 28, 2023
db0a05e
Fixed typo for the TreeShap saving function.
RobertSamoilescu Mar 1, 2023
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21 changes: 16 additions & 5 deletions alibi/saving.py
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Original file line number Diff line number Diff line change
Expand Up @@ -232,14 +232,25 @@ def _save_AnchorText(explainer: 'AnchorText', path: Union[str, os.PathLike]) ->
explainer.perturbation = perturbation


def _save_KernelShap(explainer: 'KernelShap', path: Union[str, os.PathLike]) -> None:
# TODO: save internal shap objects using native pickle?
def _save_Shap(explainer: Union['KernelShap', 'TreeShap'], path: Union[str, os.PathLike]) -> None:
# set the internal explainer object to avoid saving it. The internal explainer
# object is recreated when in the `reset_predictor` function call.
_explainer = explainer._explainer
explainer._explainer = None
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Just noting that this will need to be considered too when fixing #830


# simple save which does not save the predictor
_simple_save(explainer, path)

# reset the internal explainer object
explainer._explainer = _explainer

def _save_TreelShap(explainer: 'TreeShap', path: Union[str, os.PathLike]) -> None:
# TODO: save internal shap objects using native pickle?
_simple_save(explainer, path)

def _save_KernelShap(explainer: 'KernelShap', path: Union[str, os.PathLike]) -> None:
_save_Shap(explainer, path)


def _save_TreeShap(explainer: 'TreeShap', path: Union[str, os.PathLike]) -> None:
_save_Shap(explainer, path)


def _save_CounterfactualRL(explainer: 'CounterfactualRL', path: Union[str, os.PathLike]) -> None:
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