cstr/bttr-handwritten-math-gguf

BTTR Handwritten Math OCR — GGUF

BTTR (Bidirectional Training for Handwritten Text Recognition) for handwritten mathematical expression recognition, converted to GGUF format for CrispEmbed.

License

CC BY-NC-SA 3.0 — the model code is MIT (Green-Wood/BTTR), but the weights were trained on CROHME 2014 (CC BY-NC-SA 3.0). The training data license propagates to the trained weights.

• —Personal, educational, and research use: allowed
• —Apps (including commercial): allowed — the NC clause applies to the weights, not to software that loads them. Users download the weights separately and accept the NC terms.
• —Redistributing or selling the weights themselves: not allowed

The C++ inference engine (CrispEmbed, MIT license) and GGUF converter are original clean-room implementations.

Model details

Files

References

• —BTTR code (MIT)
• —CrispEmbed inference engine (MIT)
• —CROHME competition