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README.md
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---
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language: en
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tags:
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- pytorch
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- tensorflow
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- text-generation
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- language-model
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- moe
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- transformer
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- causal-lm
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license: mit
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datasets:
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- custom
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metrics:
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- perplexity
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- accuracy
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model-index:
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- name: MiniGPT-MoE
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results:
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- task:
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type: text-generation
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dataset:
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type: custom
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name: Custom Corpus
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metrics:
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- type: perplexity
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value: 134
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- type: accuracy
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value: 0.85
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pipeline_tag: text-generation
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---
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# MiniGPT-MoE: Lightweight Language Model with Mixture of Experts
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A lightweight implementation of a GPT-style language model using TensorFlow, featuring Mixture of Experts (MoE) architecture for efficient computation.
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## Model Details
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- **Architecture**: Transformer with Mixture of Experts (MoE)
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- **Total Parameters**: 52.8M
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- **Framework**: TensorFlow 2.x
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- **Training**: Custom dataset with ByteLevel BPE tokenization
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- **Model Type**: Causal Language Model
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### Architecture Specifications
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- **Embedding Dimension**: 512
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- **Number of Layers**: 8 Transformer blocks
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- **Attention Heads**: 8
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- **Feed-forward Dimension**: 2048
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- **Number of Experts**: 4 (in MoE layers)
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- **MoE Layers**: Layers 2, 4, 6
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- **Vocabulary Size**: 10,000
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- **Max Sequence Length**: 256
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- **Positional Embeddings**: Rotary Positional Embeddings (RoPE)
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## Usage
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### Loading the Model
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```python
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from minigpt_transformer import MoEMiniGPT, MoEConfig
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# Load configuration
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config = MoEConfig(
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vocab_size=10000,
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max_seq_len=256,
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embed_dim=512,
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num_heads=8,
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num_layers=8,
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ffn_dim=2048,
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num_experts=4,
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top_k_experts=1,
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use_moe_layers=[2, 4, 6]
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)
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# Create model
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model = MoEMiniGPT(config, tokenizer_path="my-10k-bpe-tokenizer")
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# Load trained weights
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model.load_weights("moe_minigpt.weights.h5")
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```
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### Text Generation
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```python
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# Generate text
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response = model.generate_text("Hello, how are you?", max_length=50)
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print(response)
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```
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### Training
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```python
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# Train the model
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python train_minigpt.py
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```
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## Training Details
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- **Dataset**: Custom corpus from Project Gutenberg books
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- **Tokenization**: ByteLevel BPE with 10k vocabulary
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- **Batch Size**: 48
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- **Learning Rate**: 2e-4
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- **Optimizer**: Adam
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- **Loss**: Sparse Categorical Crossentropy with auxiliary MoE losses
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## Model Performance
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- **Perplexity**: ~134 (achieved in 1.1 epochs)
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- **Training Tokens**: 2M+
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- **Expert Utilization**: Balanced across 4 experts
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## Files
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- `moe_minigpt.weights.h5`: Trained model weights
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- `minigpt_transformer.py`: Model architecture implementation
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- `train_minigpt.py`: Training script
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- `train_tokenizer.py`: Tokenizer training script
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- `my-10k-bpe-tokenizer/`: Pre-trained tokenizer files
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## Citation
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If you use this model in your research, please cite:
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```bibtex
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@misc{minigpt-moe,
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title={MiniGPT-MoE: Lightweight Language Model with Mixture of Experts},
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author={Devansh0711},
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year={2024},
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url={https://github.com/Devansh070/Language_model}
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}
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```
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## License
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This model is released under the MIT License.
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## Acknowledgments
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- Built with TensorFlow and Keras
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- Uses HuggingFace tokenizers
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- Inspired by modern transformer architectures with MoE
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