Clarification as Supervision: Reinforcement Learning for Vision-Language Interfaces

Fuente: arXiv
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Autori principali: Gkountouras, John, Titov, Ivan
Natura: Preprint
Pubblicazione: 2025
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author Gkountouras, John
Titov, Ivan
author_facet Gkountouras, John
Titov, Ivan
contents Recent text-only models demonstrate remarkable mathematical reasoning capabilities. Extending these to visual domains requires vision-language models to translate images into text descriptions. However, current models, trained to produce captions for human readers, often omit the precise details that reasoning systems require. This creates an interface mismatch: reasoners often fail not due to reasoning limitations but because they lack access to critical visual information. We propose Adaptive-Clarification Reinforcement Learning (AC-RL), which teaches vision models what information reasoners need through interaction. Our key insight is that clarification requests during training reveal information gaps; by penalizing success that requires clarification, we create pressure for comprehensive initial captions that enable the reasoner to solve the problem in a single pass. AC-RL improves average accuracy by 4.4 points over pretrained baselines across seven visual mathematical reasoning benchmarks, and analysis shows it would cut clarification requests by up to 39% if those were allowed. By treating clarification as a form of implicit supervision, AC-RL demonstrates that vision-language interfaces can be effectively learned through interaction alone, without requiring explicit annotations.
format Preprint
id arxiv_https___arxiv_org_abs_2509_26594
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Clarification as Supervision: Reinforcement Learning for Vision-Language Interfaces
Gkountouras, John
Titov, Ivan
Machine Learning
Computation and Language
Computer Vision and Pattern Recognition
68T05 (Primary) 68T45, 68T50 (Secondary)
I.2.6; I.2.10; I.2.7
Recent text-only models demonstrate remarkable mathematical reasoning capabilities. Extending these to visual domains requires vision-language models to translate images into text descriptions. However, current models, trained to produce captions for human readers, often omit the precise details that reasoning systems require. This creates an interface mismatch: reasoners often fail not due to reasoning limitations but because they lack access to critical visual information. We propose Adaptive-Clarification Reinforcement Learning (AC-RL), which teaches vision models what information reasoners need through interaction. Our key insight is that clarification requests during training reveal information gaps; by penalizing success that requires clarification, we create pressure for comprehensive initial captions that enable the reasoner to solve the problem in a single pass. AC-RL improves average accuracy by 4.4 points over pretrained baselines across seven visual mathematical reasoning benchmarks, and analysis shows it would cut clarification requests by up to 39% if those were allowed. By treating clarification as a form of implicit supervision, AC-RL demonstrates that vision-language interfaces can be effectively learned through interaction alone, without requiring explicit annotations.
title Clarification as Supervision: Reinforcement Learning for Vision-Language Interfaces
topic Machine Learning
Computation and Language
Computer Vision and Pattern Recognition
68T05 (Primary) 68T45, 68T50 (Secondary)
I.2.6; I.2.10; I.2.7
url https://arxiv.org/abs/2509.26594