RAVEN: Robust Advertisement Video Violation Temporal Grounding via Reinforcement Reasoning

Fuente: arXiv
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Main Authors: Ji, Deyi, Yang, Yuekui, Wu, Haiyang, Ma, Shaoping, Chen, Tianrun, Zhu, Lanyun
Format: Preprint
Published: 2025
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_version_ 1866911219634405376
author Ji, Deyi
Yang, Yuekui
Wu, Haiyang
Ma, Shaoping
Chen, Tianrun
Zhu, Lanyun
author_facet Ji, Deyi
Yang, Yuekui
Wu, Haiyang
Ma, Shaoping
Chen, Tianrun
Zhu, Lanyun
contents Advertisement (Ad) video violation detection is critical for ensuring platform compliance, but existing methods struggle with precise temporal grounding, noisy annotations, and limited generalization. We propose RAVEN, a novel framework that integrates curriculum reinforcement learning with multimodal large language models (MLLMs) to enhance reasoning and cognitive capabilities for violation detection. RAVEN employs a progressive training strategy, combining precisely and coarsely annotated data, and leverages Group Relative Policy Optimization (GRPO) to develop emergent reasoning abilities without explicit reasoning annotations. Multiple hierarchical sophisticated reward mechanism ensures precise temporal grounding and consistent category prediction. Experiments on industrial datasets and public benchmarks show that RAVEN achieves superior performances in violation category accuracy and temporal interval localization. We also design a pipeline to deploy the RAVEN on the online Ad services, and online A/B testing further validates its practical applicability, with significant improvements in precision and recall. RAVEN also demonstrates strong generalization, mitigating the catastrophic forgetting issue associated with supervised fine-tuning.
format Preprint
id arxiv_https___arxiv_org_abs_2510_16455
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle RAVEN: Robust Advertisement Video Violation Temporal Grounding via Reinforcement Reasoning
Ji, Deyi
Yang, Yuekui
Wu, Haiyang
Ma, Shaoping
Chen, Tianrun
Zhu, Lanyun
Computation and Language
Advertisement (Ad) video violation detection is critical for ensuring platform compliance, but existing methods struggle with precise temporal grounding, noisy annotations, and limited generalization. We propose RAVEN, a novel framework that integrates curriculum reinforcement learning with multimodal large language models (MLLMs) to enhance reasoning and cognitive capabilities for violation detection. RAVEN employs a progressive training strategy, combining precisely and coarsely annotated data, and leverages Group Relative Policy Optimization (GRPO) to develop emergent reasoning abilities without explicit reasoning annotations. Multiple hierarchical sophisticated reward mechanism ensures precise temporal grounding and consistent category prediction. Experiments on industrial datasets and public benchmarks show that RAVEN achieves superior performances in violation category accuracy and temporal interval localization. We also design a pipeline to deploy the RAVEN on the online Ad services, and online A/B testing further validates its practical applicability, with significant improvements in precision and recall. RAVEN also demonstrates strong generalization, mitigating the catastrophic forgetting issue associated with supervised fine-tuning.
title RAVEN: Robust Advertisement Video Violation Temporal Grounding via Reinforcement Reasoning
topic Computation and Language
url https://arxiv.org/abs/2510.16455