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Torque-Aware Momentum

2024-12-25 · Pranshu Malviya, Goncalo Mordido, Aristide Baratin, Reza Babanezhad Harikandeh, Gintare Karolina Dziugaite, Razvan Pascanu, Sarath Chandar

Efficiently exploring complex loss landscapes is key to the performance of deep neural networks. While momentum-based optimizers are widely used in state-of-the-art setups, classical momentum can still struggle with large, misaligned gradients, leading to oscillations. To address this, we propose Torque-Aware Momentum (TAM), which introduces a damping factor based on the angle between the new gradients and previous momentum, stabilizing the update direction during training. Empirical results show that TAM, which can be combined with both SGD and Adam, enhances exploration, handles distribution shifts more effectively, and improves generalization performance across various tasks, including image classification and large language model fine-tuning, when compared to classical momentum-based optimizers.

📄 PDF Abstract BibTeX arXiv:2412.18790

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Tasks

image-classificationImage ClassificationLanguage ModelingLanguage ModellingLarge Language Model

Methods 이 논문이 사용한 방법론

TAM TAM is designed to capture complex temporal relationships both efficiently and flexibly, It adopts an adaptive kernel instead of self-attention to capture global contextual…
SGD Stochastic Gradient Descent is an iterative optimization technique that uses minibatches of data to form an expectation of the gradient, rather than the full gradient using…
Adam 설명 없음

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