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README.md
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license: cc-by-nc-4.0
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---
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license: cc-by-nc-4.0
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language:
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- en
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tags:
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- bert
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- question-classification
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- trec
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widget:
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- text: |
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Enter your question here to classify its type.
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example_title: "Classify Question Type"
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---
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# BERT-Question-Classifier
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The BERT-Question-Classifier is a refined model based on the `bert-base-uncased` architecture. It has been fine-tuned specifically for classifying the types of questions (Description, Entity, Expression, Human, Location, Numeric) using the TREC question classification dataset.
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- **Developed by**: phanerozoic
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- **Model type**: BertForSequenceClassification
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- **Source model**: `bert-base-uncased`
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- **License**: cc-by-nc-4.0
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- **Languages**: English
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## Model Details
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The BERT-Question-Classifier utilizes a self-attention mechanism to assess the relevance of each word in the context of a question, optimized for categorizing question types.
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### Configuration
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- **Attention probs dropout prob**: 0.1
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- **Hidden act**: gelu
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- **Hidden size**: 768
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- **Number of attention heads**: 12
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- **Number of hidden layers**: 12
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## Training and Evaluation Data
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This model is trained on the TREC dataset, which contains a diverse set of question types each labeled under categories such as Description, Entity, Expression, Human, Location, and Numeric.
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## Training Procedure
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The training process was systematically automated to evaluate various hyperparameters, ensuring the selection of optimal settings for the best model performance.
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- **Initial exploratory training**: Various configurations of epochs, batch sizes, and learning rates were tested.
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- **Focused refinement training**: Post initial testing, the model underwent intensive training with selected hyperparameters to ensure consistent performance and generalization.
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### Optimal Hyperparameters Identified
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- **Epochs**: 5
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- **Batch size**: 48
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- **Learning rate**: 2e-5
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### Performance
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Post-refinement, the model exhibits high efficacy in question type classification:
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- **Accuracy**: 91%
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- **F1 Score**: 92%
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## Usage
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This model excels in classifying question types in English, ideal for systems needing to interpret and categorize user queries accurately.
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## Limitations
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The BERT-Question-Classifier performs best on question data similar to that found in the TREC dataset. Performance may vary when applied to different domains or languages.
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## Acknowledgments
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Special thanks to the developers of the BERT architecture and the contributions from the Hugging Face team, whose tools and libraries were crucial in the development of this classifier.
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