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Model Card for BiMediX-Bilingual

Model Details

  • Name: BiMediX
  • Version: 1.0
  • Type: Bilingual Medical Mixture of Experts Large Language Model (LLM)
  • Languages: English
  • Model Architecture: Mixtral-8x7B-Instruct-v0.1
  • Training Data: BiMed1.3M-English, a bilingual dataset with diverse medical interactions.

Intended Use

  • Primary Use: Medical interactions in both English and Arabic.
  • Capabilities: MCQA, closed QA and chats.

Getting Started

from transformers import AutoModelForCausalLM, AutoTokenizer
model_id = "BiMediX/BiMediX-Eng"
tokenizer = AutoTokenizer.from_pretrained(model_id)
model = AutoModelForCausalLM.from_pretrained(model_id)
text = "Hello BiMediX! I've been experiencing increased tiredness in the past week."
inputs = tokenizer(text, return_tensors="pt")
outputs = model.generate(**inputs, max_new_tokens=500)
print(tokenizer.decode(outputs[0], skip_special_tokens=True))

Training Procedure

  • Dataset: BiMed1.3M-English, million healthcare specialized tokens.
  • QLoRA Adaptation: Implements a low-rank adaptation technique, incorporating learnable low-rank adapter weights into the experts and the routing network. This results in training about 4% of the original parameters.
  • Training Resources: The model underwent training on approximately 288 million tokens from the BiMed1.3M-English corpus.

Model Performance

  • Benchmarks: Demonstrates superior performance compared to baseline models in medical benchmarks. This enhancement is attributed to advanced training techniques and a comprehensive dataset, ensuring the model's adeptness in handling complex medical queries and providing accurate information in the healthcare domain.
Model CKG CBio CMed MedGen ProMed Ana MedMCQA MedQA PubmedQA AVG
PMC-LLaMA-13B 63.0 59.7 52.6 70.0 64.3 61.5 50.5 47.2 75.6 60.5
Med42-70B 75.9 84.0 69.9 83.0 78.7 64.4 61.9 61.3 77.2 72.9
Clinical Camel-70B 69.8 79.2 67.0 69.0 71.3 62.2 47.0 53.4 74.3 65.9
Meditron-70B 72.3 82.5 62.8 77.8 77.9 62.7 65.1 60.7 80.0 71.3
BiMediX 78.9 86.1 68.2 85.0 80.5 74.1 62.7 62.8 80.2 75.4

Safety and Ethical Considerations

  • Potential issues: hallucinations, toxicity, stereotypes.
  • Usage: Research purposes only.

Accessibility

Authors

Sara Pieri, Sahal Shaji Mullappilly, Fahad Shahbaz Khan, Rao Muhammad Anwer Salman Khan, Timothy Baldwin, Hisham Cholakkal
Mohamed Bin Zayed University of Artificial Intelligence (MBZUAI)

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