A field guide to the long tail of machine learning
A curated index of papers and libraries for when your classifier only learns to predict the majority class.

What it does
This repository is a curated awesome-list for class-imbalanced and long-tail learning. It catalogs frameworks and libraries across Python, R, Java, Scalar, and Julia, then organizes research papers by field—ranging from classic resampling and ensemble methods to deep generative models and graph learning. The maintainer applies a quality filter, aiming to include only high-impact work or papers from top-tier conferences and journals.
The interesting bit
Most awesome-lists optimize for comprehensiveness; this one explicitly optimizes for selectivity. By refusing to be exhaustive and favoring reputed venues, it functions more like an annotated syllabus than a dumping ground. The fourteen sub-categories under deep learning alone—covering everything from posterior recalibration to imbalanced regression—reveal how sprawling the problem has become.
Key highlights
- Tools are grouped by language, with Python receiving the most detailed coverage (including
imbalanced-learn,imbalanced-ensemble, and 85-variantsmote_variants). - Research is sliced into granular topics: ensemble learning, data resampling, cost-sensitive learning, and fourteen distinct deep-learning sub-fields.
- Includes practical extras: public datasets, slide decks, and utility notebooks.
- Bilingual README in English and Chinese.
- Explicitly excludes low-impact work; the stated goal is to keep only the “awesome” entries.
Caveats
- The list is “not intended to be exhaustive,” so niche or bleeding-edge work may be absent.
- Coverage for non-Python languages (R, Java, Scalar, Julia) is visibly thinner and partially truncated in the provided README.
- The maintainer’s own libraries are featured in a prominent top-level table; a disclosure about this authorship appears only as a commented-out HTML block in the source.
Verdict
Use this as a vetted jumping-off point if you are building fraud-detection, medical-diagnosis, or rare-event classifiers. Skip it if you need an exhaustive systematic review or a unified framework—this is strictly a reading list and directory.
Frequently asked
- What is ZhiningLiu1998/awesome-imbalanced-learning?
- A curated index of papers and libraries for when your classifier only learns to predict the majority class.
- Is awesome-imbalanced-learning open source?
- Yes — ZhiningLiu1998/awesome-imbalanced-learning is open source, released under the CC0-1.0 license.
- How popular is awesome-imbalanced-learning?
- ZhiningLiu1998/awesome-imbalanced-learning has 1.5k stars on GitHub.
- Where can I find awesome-imbalanced-learning?
- ZhiningLiu1998/awesome-imbalanced-learning is on GitHub at https://github.com/ZhiningLiu1998/awesome-imbalanced-learning.