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phi4_african_history_lora

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metadata 
library_name: transformers
tags:
  - history
  - conversational
  - PEFT
license: mit
datasets:
  - DannyAI/African-History-QA-Dataset
language:
  - en
metrics:
  - bertscore
base_model:
  - microsoft/Phi-4-mini-instruct
pipeline_tag: text-generation

Model Card for Model ID

This is a LoRA fine-tuned version of microsoft/Phi-4-mini-instruct for African History using the DannyAI/African-History-QA-Dataset dataset. It achieves a loss value of 1.488960 on the validation set

Model Details

Model Description

  • Developed by: Daniel Ihenacho
  • Funded by: Daniel Ihenacho
  • Shared by: Daniel Ihenacho
  • Model type: Text Generation
  • Language(s) (NLP): English
  • License: mit
  • Finetuned from model: microsoft/Phi-4-mini-instruct

Uses

This can be used for QA datasets about African History

Out-of-Scope Use

Can be used beyond African History but should not.

How to Get Started with the Model 

from transformers import pipeline
from transformers import (
    AutoTokenizer, 
    AutoModelForCausalLM)
from peft import PeftModel


model_id = "microsoft/Phi-4-mini-instruct"

tokeniser = AutoTokenizer.from_pretrained(model_id)

# load base model
model  = AutoModelForCausalLM.from_pretrained(
    model_id,
    device_map = "auto",
    torch_dtype = torch.bfloat16,
    trust_remote_code = False
)

# Load the fine-tuned LoRA model
lora_id = "DannyAI/phi4_african_history_lora"
lora_model = PeftModel.from_pretrained(
    model,lora_id
)

generator = pipeline(
    "text-generation",
    model=lora_model,
    tokenizer=tokeniser,
)
question = "What is the significance of African feminist scholarly activism in contemporary resistance movements?"
def generate_answer(question)->str:
    """Generates an answer for the given question using the fine-tuned LoRA model.
    """
    messages = [
        {"role": "system", "content": "You are a helpful AI assistant specialised in African history which gives concise answers to questions asked."},
        {"role": "user", "content": question}
    ]
    
    output = generator(
        messages, 
        max_new_tokens=2048, 
        temperature=0.1, 
        do_sample=False,
        return_full_text=False
    )
    return output[0]['generated_text'].strip()

# Example output
African feminist scholarly activism is significant in contemporary resistance movements as it provides a critical framework for understanding and addressing the specific challenges faced by African women in the context of global capitalism, neocolonialism, and patriarchal structures.

Training Details

Training Data

Step Training Loss Validation Loss
100 1.643300 1.649192
200 1.546300 1.576022
300 1.580200 1.552545
400 1.575900 1.538777
500 1.499500 1.529112
600 1.400600 1.516559
700 1.524000 1.513925
800 1.437100 1.507401
900 1.547300 1.504273
1000 1.441300 1.502129
1100 1.452500 1.499649
1200 1.466400 1.495797
1300 1.407500 1.494715
1400 1.511400 1.493275
1500 1.489600 1.495470
1600 1.384400 1.492817
1700 1.534900 1.490099
1800 1.469300 1.490490
1900 1.407500 1.488490
2000 1.512300 1.487388
2100 1.438900 1.490232
2200 1.434700 1.490498
2300 1.421200 1.489342
2400 1.418200 1.487220
2500 1.441200 1.487831
2600 1.453900 1.488960

Training Hyperparameters

  • per_device_train_batch_size=2
  • gradient_accumulation_steps = 4
  • learning_rate=2e-5
  • num_train_epochs=10
  • bf16=True
  • eval_strategy="steps"
  • eval_steps=100,
  • save_strategy="steps"
  • save_steps=200
  • logging_steps=10

Lora Configuration

  • r: 8
  • lora_alpha: 16
  • target_modules: ["q_proj", "v_proj", "k_proj", "o_proj"]
  • lora_dropout: 0.05 # dataset is small, hence a low dropout value
  • bias: "none"
  • task_type: "CAUSAL_LM"

Evaluation

Metrics

Models Bert Score TinyMMLU TinyTrufulQA
Base model 0.88868 0.6837 0.49745
Fine tuned Model 0.90726 0.67751 0.43555

Compute Infrastructure

Runpod.

Hardware

Runpod A40 GPU instance

Citation

If you use this dataset, please cite:

@Model{
Ihenacho2026phi4_african_history_lora,
  author    = {Daniel Ihenacho},
  title     = {phi4_african_history_lora},
  year      = {2026},
  publisher = {Hugging Face Models},
  url       = {https://huggingface.co/DannyAI/phi4_african_history_lora},
  urldate   = {2026-01-27},
}

Model Card Authors

Daniel Ihenacho

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