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Added Binary Focal Cross Entropy #10674

Merged
merged 9 commits into from
Oct 23, 2023
Merged

Added Binary Focal Cross Entropy #10674

merged 9 commits into from
Oct 23, 2023

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ank426
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@ank426 ank426 commented Oct 18, 2023

Describe your change:

Added Binary Focal Cross Entropy loss function. It's a variation of binary cross-entropy that addresses class imbalance by
focusing on hard examples.

  • Add an algorithm?
  • Fix a bug or typo in an existing algorithm?
  • Documentation change?

Checklist:

  • I have read CONTRIBUTING.md.
  • This pull request is all my own work -- I have not plagiarized.
  • I know that pull requests will not be merged if they fail the automated tests.
  • This PR only changes one algorithm file. To ease review, please open separate PRs for separate algorithms.
  • All new Python files are placed inside an existing directory.
  • All filenames are in all lowercase characters with no spaces or dashes.
  • All functions and variable names follow Python naming conventions.
  • All function parameters and return values are annotated with Python type hints.
  • All functions have doctests that pass the automated testing.
  • All new algorithms include at least one URL that points to Wikipedia or another similar explanation.
  • If this pull request resolves one or more open issues then the description above includes the issue number(s) with a closing keyword: "Fixes #ISSUE-NUMBER".

@algorithms-keeper algorithms-keeper bot added the awaiting reviews This PR is ready to be reviewed label Oct 18, 2023
@algorithms-keeper algorithms-keeper bot added the tests are failing Do not merge until tests pass label Oct 18, 2023
@algorithms-keeper algorithms-keeper bot removed the tests are failing Do not merge until tests pass label Oct 18, 2023
@ank426
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ank426 commented Oct 21, 2023

@tianyizheng02 Could you please review this?

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All loss function files were consolidated into machine_learning/loss_functions.py in #10737. Could you move your new code into that file?

@ank426
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ank426 commented Oct 23, 2023

All loss function files were consolidated into machine_learning/loss_functions.py in #10737. Could you move your new code into that file?

Done.

@tianyizheng02 tianyizheng02 merged commit abd6bca into TheAlgorithms:master Oct 23, 2023
@algorithms-keeper algorithms-keeper bot removed the awaiting reviews This PR is ready to be reviewed label Oct 23, 2023
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Thanks for your contribution!

sedatguzelsemme pushed a commit to sedatguzelsemme/Python that referenced this pull request Sep 15, 2024
* Added Binary Focal Cross Entropy

* [pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

* Fixed Issue

* Fixed Issue

* Added BFCE loss to loss_functions.py

* [pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

* Update machine_learning/loss_functions.py

---------

Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>
Co-authored-by: Tianyi Zheng <tianyizheng02@gmail.com>
@isidroas isidroas mentioned this pull request Jan 25, 2025
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2 participants