让大模型主动选择看图重点,提升复杂视觉查询准确率
Glance-or-Gaze: Incentivizing LMMs to Adaptively Focus Search via Reinforcement Learning
- 用动态选择机制决定全局浏览还是聚焦关键区域
- 在6个基准上达到顶尖性能,复杂问题处理能力显著提升
- 适合需要精准视觉搜索的AI应用开发者
大型多模态模型在视觉理解上表现优异,但在涉及长尾实体或动态信息的知识密集型查询中受限于静态参数化知识。现有搜索增强方法依赖全图检索,引入大量视觉冗余和噪声,且缺乏深度迭代反思,难以应对复杂视觉查询。为此,我们提出Glance-or-Gaze(GoG)框架,实现从被动感知到主动视觉规划的转变。GoG引入选择性凝视机制,动态决定是全局浏览还是聚焦高价值区域,在检索前过滤无关信息。采用双阶段训练策略:通过监督微调实现基础的GoG行为对齐,再通过复杂度自适应强化学习提升模型处理复杂查询的迭代推理能力。在六个基准上的实验表明,该方法达到当前最优性能。消融实验证实,选择性凝视与复杂度自适应强化学习均对有效视觉搜索至关重要。
原文摘要 · Abstract (English)
Large Multimodal Models (LMMs) have achieved remarkable success in visual understanding, yet they struggle with knowledge-intensive queries involving long-tail entities or evolving information due to static parametric knowledge. Recent search-augmented approaches attempt to address this limitation, but existing methods rely on indiscriminate whole-image retrieval that introduces substantial visual redundancy and noise, and lack deep iterative reflection, limiting their effectiveness on complex visual queries. To overcome these challenges, we propose Glance-or-Gaze (GoG), a fully autonomous framework that shifts from passive perception to active visual planning. GoG introduces a Selective Gaze mechanism that dynamically chooses whether to glance at global context or gaze into high-value regions, filtering irrelevant information before retrieval. We design a dual-stage training strategy: Reflective GoG Behavior Alignment via supervised fine-tuning instills the fundamental GoG paradigm, while Complexity-Adaptive Reinforcement Learning further enhances the model's capability to handle complex queries through iterative reasoning. Experiments across six benchmarks demonstrate state-of-the-art performance. Ablation studies confirm that both Selective Gaze and complexity-adaptive RL are essential for effective visual search.
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