SAGE: Saliency-Guided Contrastive Embeddings

• URL: http://arxiv.org/abs/2511.12744v1
• Date: Sun, 16 Nov 2025 19:19:59 GMT
• Title: SAGE: Saliency-Guided Contrastive Embeddings
• Abstract summary: Existing approaches to integrate saliency into model training often rely on internal model mechanisms.<n>We propose SAGE (Saliency-Guided Contrastive Embeddings): a loss function that integrates human saliency into network training using contrastive embeddings.<n>We demonstrate a boost in classification performance across both open- and closed-set scenarios against SOTA saliency-based methods.
• Score: 4.33144664431421
• License: http://creativecommons.org/licenses/by-nc-nd/4.0/
• Abstract: Integrating human perceptual priors into the training of neural networks has been shown to raise model generalization, serve as an effective regularizer, and align models with human expertise for applications in high-risk domains. Existing approaches to integrate saliency into model training often rely on internal model mechanisms, which recent research suggests may be unreliable. Our insight is that many challenges associated with saliency-guided training stem from the placement of the guidance approaches solely within the image space. Instead, we move away from the image space, use the model's latent space embeddings to steer human guidance during training, and we propose SAGE (Saliency-Guided Contrastive Embeddings): a loss function that integrates human saliency into network training using contrastive embeddings. We apply salient-preserving and saliency-degrading signal augmentations to the input and capture the changes in embeddings and model logits. We guide the model towards salient features and away from non-salient features using a contrastive triplet loss. Additionally, we perform a sanity check on the logit distributions to ensure that the model outputs match the saliency-based augmentations. We demonstrate a boost in classification performance across both open- and closed-set scenarios against SOTA saliency-based methods, showing SAGE's effectiveness across various backbones, and include experiments to suggest its wide generalization across tasks.

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