[WIP] FIX index overflow error in sparse matrix polynomial expansion (bis)#19676

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wdevazelhes wants to merge 11 commits intoscikit-learn:mainfrom

wdevazelhes:index_poly

Commits on Apr 2, 2020

[MRG] FIX index overflow error in sparse matrix polynomial expansion
jianlingzhong
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a92b8a7
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Commits on Mar 14, 2021

Take over #16831
wdevazelhes
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c60a3e9
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Commits on Mar 16, 2021

Do some first castings to int64 to avoid overflow in expanded_dimensionality and in total_nnz
wdevazelhes
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b78f40d
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Commits on Apr 7, 2021

merge with master
wdevazelhes
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ed6a5b5
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Add test
wdevazelhes
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3f3db6a
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cast the input dim to int64 outside cython (didn't manage to make it work inside cython)
wdevazelhes
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d5364ce
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cast also expanded indices and indptr
wdevazelhes
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d90233b
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cast to int64 using numpy
wdevazelhes
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fe39a7b
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Commits on Apr 19, 2021

refactor code and factors out the int64 casting
wdevazelhes
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90e12b8
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remove unnecessary changes
wdevazelhes
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e5daef8
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Commits on May 11, 2021

Update sklearn/preprocessing/_polynomial.py
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wdevazelhes
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thomasjpfan
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7138cf4
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