AusLegalQA
AusLegalQA is a fine-tune of Mistral-8x7B-Instruct-0.1 using PEFT techniques, trained on the Open Australian Legal QA.
The model achieved an eval loss of 1.1391 on a subset of 100 prompts and answers from the original dataset.
The model was trained with the following hyperparameters for 3 epochs. The step with the lowest eval loss was selected (coinciding with end of epoch 2) and the resulting qLoRA (4 bits) was merged into the base model.
| Hyperparameter | Value |
|---|---|
| Sequence length | 1024 |
| Epochs | 2 |
| Optimiser | AdamW |
| Learning rate | 1e-4 |
| Learning rate scheduler | Cosine |
| Batch size | 1 |
| Weight decay | 0.01 |
| Warmup ratio | 0.05 |
| LoRA rank | 64 |
| LoRA alpha | 128 |
| LoRA dropout | 0.1 |
| LoRA target | q_proj,v_proj |
| NEFTune alpha | 5 |
| Flash Attention | on |
Strengths
The model is strong at summarisation and short-form answers with the key details. It is more likely to provide responses which assume the user is located in Australia. Ideal use-case is in a LLamaIndex/LangChain environment.
Limitations
Just as the base model it does not have any moderation mechanisms.
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