Domain-Invariant Prompt Learning for Vision-Language Models

Fuente: arXiv
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Autori principali: Khoee, Arsham Gholamzadeh, Yu, Yinan, Feldt, Robert
Natura: Preprint
Pubblicazione: 2026
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author Khoee, Arsham Gholamzadeh
Yu, Yinan
Feldt, Robert
author_facet Khoee, Arsham Gholamzadeh
Yu, Yinan
Feldt, Robert
contents Large pre-trained vision-language models like CLIP have transformed computer vision by aligning images and text in a shared feature space, enabling robust zero-shot transfer via prompting. Soft-prompting, such as Context Optimization (CoOp), effectively adapts these models for downstream recognition tasks by learning a set of context vectors. However, CoOp lacks explicit mechanisms for handling domain shifts across unseen distributions. To address this, we propose Domain-invariant Context Optimization (DiCoOp), an extension of CoOp optimized for domain generalization. By employing an adversarial training approach, DiCoOp forces the model to learn domain-invariant prompts while preserving discriminative power for classification. Experimental results show that DiCoOp consistently surpasses CoOp in domain generalization tasks across diverse visual domains.
format Preprint
id arxiv_https___arxiv_org_abs_2603_28555
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle Domain-Invariant Prompt Learning for Vision-Language Models
Khoee, Arsham Gholamzadeh
Yu, Yinan
Feldt, Robert
Computer Vision and Pattern Recognition
Artificial Intelligence
Large pre-trained vision-language models like CLIP have transformed computer vision by aligning images and text in a shared feature space, enabling robust zero-shot transfer via prompting. Soft-prompting, such as Context Optimization (CoOp), effectively adapts these models for downstream recognition tasks by learning a set of context vectors. However, CoOp lacks explicit mechanisms for handling domain shifts across unseen distributions. To address this, we propose Domain-invariant Context Optimization (DiCoOp), an extension of CoOp optimized for domain generalization. By employing an adversarial training approach, DiCoOp forces the model to learn domain-invariant prompts while preserving discriminative power for classification. Experimental results show that DiCoOp consistently surpasses CoOp in domain generalization tasks across diverse visual domains.
title Domain-Invariant Prompt Learning for Vision-Language Models
topic Computer Vision and Pattern Recognition
Artificial Intelligence
url https://arxiv.org/abs/2603.28555