base_model: Writer/Palmyra-x-003
tags:
- instruct
- finetune
- DPO
- distillation
- heathcare
- medical
- clinical
- med
- lifescience
- Pharmaceutical
- Pharma
- Enterprise LLM
- Enterprise
- Enterprise ready
model_type: palmyra
model-index:
- name: Palmyra-Med-70B
results: []
license: other
license_name: writer-open-model-license
license_link: https://writer.com/legal/open-model-license/
extra_gated_prompt: >-
By clicking "Agree", you agree to the [License
Agreement](https://writer.com/legal/open-model-license/) and acknowledge
Writer's [Privacy Policy](https://writer.com/legal/acceptable-use/).
extra_gated_fields:
Name: text
Email: text
Organization or Affiliation: text
Receive email updates and promotions on Writer products, services, and research?:
type: select
options:
- 'Yes'
- 'No'
I acknowledge that this model is for non-commercial use only unless I acquire a separate license from Writer: checkbox
language:
- en
widget:
- example_title: Palmyra-Med-70B
messages:
- role: system
content: >-
You are a highly knowledgeable and experienced expert in the
healthcare and biomedical field, possessing extensive medical
knowledge and practical expertise.
- role: user
content: >-
Does danzhi Xiaoyao San ameliorate depressive-like behavior by
shifting toward serotonin via the downregulation of hippocampal
indoleamine 2,3-dioxygenase?
output:
text: >-
Danzhi Xiaoyao San (DXS) exhibited significant antidepressant-like
effects in rats subjected to chronic unpredictable mild stress (CUMS), a
commonly used model for inducing depressive-like behavior. The
administration of DXS led to a notable reduction in the activity of
indoleamine 2,3-dioxygenase (IDO) in the hippocampus. This reduction in
IDO activity is crucial because IDO is an enzyme that catalyzes the
degradation of tryptophan into kynurenine (Kyn), thereby diverting
tryptophan away from the serotonin (5-HT) synthesis pathway. By
downregulating IDO, DXS effectively shifts the balance of tryptophan
metabolism towards increased serotonin production, thereby enhancing the
availability of serotonin. This shift in the Kyn/5-HT pathway favoring
serotonin is likely a key mechanism underlying the antidepressant
effects observed with DXS treatment. Enhanced serotonin levels in the
hippocampus are associated with improved mood and reduction of
depressive symptoms, suggesting that DXS could be a promising
therapeutic agent for managing depression.
Palmyra-Med, a powerful LLM designed for healthcare
Model Description
- Developed by: Writer
- Language(s) (NLP): English
- License: Writer open model license
- Finetuned from model: Palmyra-X-003
- Context window: 8192
Model Details
Palmyra-Med is a model built by Writer specifically to meet the needs of the healthcare industry. The leading LLM on biomedical benchmarks, with an average score of 85.87%, outperforming GPT-4, claude Opus, Gemini and Med-PaLM-2 base model and a medically trained human test-taker.
Resources and Technical Documentation:
Specialized for Biomedical Applications
Palmyra-Med-70B is meticulously designed to meet the unique linguistic and knowledge demands of the medical and life sciences sectors. It has been fine-tuned on an extensive collection of high-quality biomedical data, ensuring it can comprehend and generate text with precise domain-specific accuracy and fluency.
Our system integrates the DPO dataset and a well-crafted fine-tuning recipe along with a custom diverse medical instruction dataset, making it highly adept at handling the specific needs of this field. Key components of our training pipeline include:
- Policy Optimization: Utilizing Direct Preference Optimization to enhance the model's performance. DPO.
- Fine-tuning dataset: Custom Medical Instruct dataset (Writer in-house build)
Intended Use
Intended Use Cases: Palmyra-Med-70b is intended for non-commercial and research use in English. Instruction tuned models are intended for assistant-like chat, whereas pretrained models can be adapted for a variety of natural language generation tasks.
Out-of-scope: Use in any manner that violates applicable laws or regulations (including trade compliance laws). Use in any other way that is prohibited by Writer's Acceptable Use Policy and the Writer open model license. Use in languages other than English.
Note: Developers may fine-tune Palmyra-Med-70b models for languages beyond English provided they comply with the Writer open model license and the Acceptable Use Policy.
Watermarks: All models built by Writer.com contain watermarks to detect and prevent misuse and illegal use.
Use with transformers
You can run conversational inference using the Transformers Auto classes with the generate() function. Let's see an example.
import torch
from transformers import AutoTokenizer, AutoModelForCausalLM
model_id = "Writer/Palmyra-Med-70B"
tokenizer = AutoTokenizer.from_pretrained(model_id)
model = AutoModelForCausalLM.from_pretrained(
model_id,
torch_dtype=torch.float16,
device_map="auto",
attn_implementation="flash_attention_2",
)
messages = [
{
"role": "system",
"content": "You are a highly knowledgeable and experienced expert in the healthcare and biomedical field, possessing extensive medical knowledge and practical expertise.",
},
{
"role": "user",
"content": "Does danzhi Xiaoyao San ameliorate depressive-like behavior by shifting toward serotonin via the downregulation of hippocampal indoleamine 2,3-dioxygenase?",
},
]
input_ids = tokenizer.apply_chat_template(
messages, tokenize=True, add_generation_prompt=True, return_tensors="pt"
)
gen_conf = {
"max_new_tokens": 256,
"eos_token_id": [tokenizer.eos_token_id, tokenizer.convert_tokens_to_ids("<|eot_id|>")],
"temperature": 0.0,
"top_p": 0.9,
}
with torch.inference_mode():
output_id = model.generate(input_ids, **gen_conf)
output_text = tokenizer.decode(output_id[0][input_ids.shape[1] :])
print(output_text)
Evaluation Results
Palmyra-Med-70b outperforms larger models like GPT-4, Gemini and Med-PaLM-2 across 9 diverse biomedical datasets, achieving state-of-the-art results with an average score of 85.9% despite having fewer parameters. Its strong performance in tasks like Clinical KG, Medical Genetics, and PubMedQA underscores its effective grasp of biomedical knowledge.
Performance on Biomedical Benchmarks
Medical Use Cases
Palmyra-Med-70b excels in analyzing and summarizing complex clinical notes, EHR data, and discharge summaries, extracting key information to generate concise, structured summaries. It help enhance clinical decision-making by performing advanced clinical entity recognition, identifying key medical concepts such as diseases, symptoms, medications, procedures, and anatomical structures from unstructured text.
By leveraging its deep understanding of medical terminology, the model enhances information retrieval, data analysis, and knowledge discovery from EHRs, research articles, and other biomedical sources. These capabilities support applications like clinical decision support, pharmacovigilance, and medical research.
Bias, Risks, and Limitations
Palmyra-Med-70b, despite leveraging high-quality data, may contain inaccuracies, biases, or misalignments and has not been rigorously evaluated in clinical trials or real-world healthcare settings.
It is advised not to use the model for direct patient care, clinical decision support, or professional medical purposes. Instead, its use should be confined to research by qualified individuals who understand its limitations. Palmyra-Med-70b should not replace professional medical judgment, and adapting it for medical use would require extensive additional work, including thorough testing, guideline alignment, bias mitigation, human oversight, and regulatory compliance. Always consult a qualified healthcare provider for personal medical needs.
Citation and Related Information
To cite this model:
@misc{Palmyra-Med-70B,
author = {Writer Engineering team},
title = {{Palmyra-Med-70b: A powerful LLM designed for healthcare}},
howpublished = {\url{https://dev.writer.com}},
year = 2024,
month = June
}
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