bert-base-uncased-ft-ag_news_imb

BERT Fine-Tuned on AG-News Imbalanced

A fine-tuned BERT model using the AG-News Imbalanced dataset.

Model Details

Description

This model is based on the BERT base (uncased) architecture and has been fine-tuned on the AG-News dataset in its binary, imbalanced version, as in the Active Learning for BERT: An Empirical Study paper.

• Developed by: Cesar Gonzalez-Gutierrez
• Funded by: ERC
• Architecture: BERT-base
• Base model: BERT base model (uncased)
• Language: English
• License: Apache 2.0

Seed Initializations

Alternative models trained using different initialization seeds are available and can be accessed using specific branches:

To load a model from a specific branch, use the revision parameter:

from transformers import AutoModelForSequenceClassification

model = AutoModelForSequenceClassification.from_pretrained("<model>", revision="seed-120")

Sources

[Information pending]

Training Details

Fine-tuning was performed end-to-end using a grid search over key hyperparameters. Model performance was evaluated based on validation loss computed on the development set. After identifying the optimal hyperparameter configuration, the final model was retrained on the entire training dataset.

Training Data

The model was trained on the AG-News training partition, with validation performed on a random 20% split of the training data.

Training Hyperparameters

• Epochs: 1-4
• Batch size: {16, 32}
• Learning rate: {5e-5, 3e-5, 2e-5}
• Validation metric: loss
• Precision: fp16

Uses

This model can be used for classification tasks aligned with the structure and intent of the AG-News dataset.

For broader guidance, refer to the BERT base model’s Inteded Uses & Limitations.

Bias, Risks, and Limitations

This model inherits the potential risks and limitations of its base model. For more details, refer to the Limitations and bias section of the original model documentation.

Additionally, it may reflect or amplify patterns and biases present in the AG-News training data.

Hardware

• Hardware Type: NVIDIA Tesla V100 PCIE 32GB
• Cluster Provider: Artemisa
• Compute Region: EU

Citation

If you use this model in your research, please cite both the base BERT model and the AG-News source.