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+ ---
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+ license: apache-2.0
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+ base_model: Qwen/Qwen2.5-Coder-1.5B-Instruct
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+ tags: [accessibility, wcag, gguf, qlora, axe-core]
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+ ---
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+ # AccessAudit — Qwen2.5-Coder-1.5B-Instruct fine-tuned for accessibility fixes
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+
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+ Given one axe-core violation and the failing HTML element, the model returns JSON with
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+ `explanation`, `who_is_affected`, `wcag`, `fix_summary` and `fixed_html`.
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+
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+ - **Base model:** Qwen/Qwen2.5-Coder-1.5B-Instruct (Apache 2.0)
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+ - **Method:** QLoRA (4-bit NF4 base, LoRA r=8, alpha=16, q_proj/v_proj), lr 0.0002, 3 epochs
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+ - **Training data:** 473 machine-verified pairs built from the AccessGuru dataset
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+ (Fathallah, Hernández, Staab, 2025, https://doi.org/10.18419/DARUS-5177, CC BY 4.0)
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+ - **File:** `accessaudit-coder-1.5b-q4_k_m.gguf` (Q4_K_M, 0.99 GB)
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+
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+ | Test (76 unseen websites' elements) | Fix passes axe | Valid JSON | Sec/answer |
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+ |---|---|---|---|
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+ | T4 GPU, bitsandbytes 4-bit | 85.5% | 100.0% | 1.99 |
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+ | CPU, 2 threads, GGUF Q4_K_M | 27.6% | 100.0% | 29.2 |
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+
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+ Built for a university LLM lab project. Automated fixes must be reviewed by a person.