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README.md
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# Custom BERT NER Model
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This repository contains a BERT-based Named Entity Recognition (NER) model fine-tuned on the CoNLL-2003 dataset. The model is trained to identify common named entity types such as persons, organizations, locations, and miscellaneous entities.
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---
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## Model Details
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- **Model architecture:** BERT (bert-base-cased)
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- **Task:** Token classification / Named Entity Recognition (NER)
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- **Training data:** CoNLL-2003 dataset (~14,000 training samples)
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- **Number of epochs:** 5
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- **Framework:** Hugging Face Transformers + Datasets
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- **Device:** CUDA-enabled GPU for training and inference
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- **WandB:** Disabled during training
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---
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## Usage
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You can use this model for token classification to identify named entities in your text.
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### Installation
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```python
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pip install transformers datasets torch
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```
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## Load the model and tokenizer
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```pyhton
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from transformers import BertTokenizerFast, BertForTokenClassification
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import torch
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model_name_or_path = "AventIQ-AI/Custom-BERT-NER-Model"
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tokenizer = BertTokenizerFast.from_pretrained(model_name_or_path)
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model = BertForTokenClassification.from_pretrained(model_name_or_path)
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model.to("cuda") # or "cpu"
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model.eval()
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```
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## Example inference
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```python
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text = "Hi, I am Deepak and I am living in Delhi."
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tokens = tokenizer(text, return_tensors="pt").to(model.device)
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outputs = model(**tokens)
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predictions = torch.argmax(outputs.logits, dim=2)
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labels = [model.config.id2label[p.item()] for p in predictions[0]]
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for token, label in zip(tokenizer.tokenize(text), labels):
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print(f"{token}: {label}")
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```
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## Training Details
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- Dataset: CoNLL-2003, loaded via the Hugging Face datasets library
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- Optimizer: AdamW
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- Learning Rate: 5e-5
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- Batch Size: 16
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- Max Sequence Length: 128
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- Epochs: 5
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- Evaluation: Performed on validation split (if applicable)
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- Quantization: Applied post-training for model size reduction (optional)
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## Limitations
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- The model may not generalize well to unseen entity types or domains outside CoNLL-2003.
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- It can occasionally mislabel entities, especially for rare or new names.
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- A CUDA-enabled GPU is required for efficient training and inference.
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