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Bttr Handwritten Math GGUF

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

KindModelVersionRevision 2576c9cBgrade

Model source

Kind
Model
File size
10.2–24.8 MB
Version
vRevision 2576c9c
Updated
Oct 30, 2026
Downloads
235
Source
Hugging Face

Source description

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

PropertyValue
ArchitectureDenseNet encoder + 3-layer Transformer decoder
Parameters6.5M
Training dataCROHME 2014 (CC BY-NC-SA 3.0)
Vocabulary113 LaTeX tokens
CROHME 2014 eval49.2% raw / 49.8% parsed (greedy, 986 images)

Files

FileQuantSize
bttr-hw-f32.ggufF3225 MB
bttr-hw-q8_0.ggufQ8_013 MB
bttr-hw-q4_k.ggufQ4_K11 MB

References

Sources

1 source
Hugging FacePrimaryVersion 2576c9c43c4a58a61b4b383e4c3b4dbea96e6fbd
huggingface.co/cstr/bttr-handwritten-math-gguf/tree/2576c9c43c4a58a61b4b383e4c3b4dbea96e6fbd

Verified Oct 30

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Repository files

File inventory only; completeness is unverified.

Model artifacts

3 artifacts

bttr-hw-f32.gguf

gguf · 24.8 MB · SHA-256 eb6dbda96097…86ff · Hugging Face

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bttr-hw-q4_k.gguf

gguf · 10.2 MB · SHA-256 2b72e66e3e83…466e · Hugging Face

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bttr-hw-q8_0.gguf

gguf · 12.3 MB · SHA-256 2482a774f239…5537 · Hugging Face

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Source excerpts

3 excerpts

--- license: cc-by-nc-sa-3.0 tags: - math-ocr - handwritten-math - crohme - gguf - crispembed - bttr pipeline_tag: image-to-text datasets: - CROHME-2014 --- # BTTR Handwritten Math OCR — GGUF BTTR (Bidirectional Training for Handwritten Text Recognition) for handwritten mathematical expression recognition, converted to GGUF format for [CrispEmbed](https://github.com/CrispStrobe/CrispEmbed). ## License **CC BY-NC-SA 3.0** — the model code is MIT ([Green-Wood/BTTR](https://github.com/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](https://github.com/CrispStrobe/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 | ## References - [BTTR code (MIT)](https://github.com/Green-Wood/BTTR) - [CrispEmbed inference engine (MIT)](https://github.com/CrispStrobe/CrispEmbed) - [CROHME competition](https://www.isical.ac.in/~crohme/)

Source context: 235 downloads · 1 likes · Pipeline image-to-text · Repo cstr/bttr-handwritten-math-gguf

Source context: 507 downloads · 1 likes · Pipeline image-to-text · Repo cstr/bttr-handwritten-math-gguf