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cstr/
bttr-handwritten-math-gguf

Name: bttr-handwritten-math-gguf
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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

Property	Value
Architecture	DenseNet encoder + 3-layer Transformer decoder
Parameters	6.5M
Training data	CROHME 2014 (CC BY-NC-SA 3.0)
Vocabulary	113 LaTeX tokens
CROHME 2014 eval	49.2% raw / 49.8% parsed (greedy, 986 images)

Files

File	Quant	Size
`bttr-hw-f32.gguf`	F32	25 MB
`bttr-hw-q8_0.gguf`	Q8_0	13 MB
`bttr-hw-q4_k.gguf`	Q4_K	11 MB

cstr/bttr-handwritten-math-gguf

BTTR Handwritten Math OCR — GGUF

License

Model details

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References

cstr/
bttr-handwritten-math-gguf