VideoSAVi: Self-Aligned Video Language Models without Human Supervision

• URL: http://arxiv.org/abs/2412.00624v2
• Date: Sun, 30 Mar 2025 01:19:52 GMT
• Title: VideoSAVi: Self-Aligned Video Language Models without Human Supervision
• Authors: Yogesh Kulkarni, Pooyan Fazli,
• Abstract summary: VideoSAVi is a self-training pipeline that enables Video-LLMs to reason over video content without external supervision.<n>VideoSAVi achieves state-of-the-art performance on MVBench (74.0%) and delivers significant improvements.<n>Our model-agnostic approach is computationally efficient, requiring only 32 frames.
• Score: 0.6854849895338531
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: Recent advances in video-large language models (Video-LLMs) have led to significant progress in video understanding. Current preference optimization methods often rely on proprietary APIs or ground-truth captions to generate preference data (i.e., pairs of model outputs ranked based on their quality or alignment with human judgment), which is then used to train models for video-language alignment. This approach is both costly and labor-intensive. To address this limitation, we introduce VideoSAVi (Self-Aligned Video Language Model), a self-training pipeline that enables Video-LLMs to reason over video content without external supervision. Our approach includes a self-critiquing mechanism that identifies reasoning errors in the model's initial responses and generates improved alternatives, creating preference pairs directly from video content. VideoSAVi then applies Direct Preference Optimization (DPO), which uses the preference data to iteratively train the model, enhancing temporal and spatial reasoning in video understanding. Experiments show that VideoSAVi achieves state-of-the-art performance on MVBench (74.0%) and delivers significant improvements across other benchmarks, including a 3.9% gain on PerceptionTest and a substantial 6.8% improvement on the challenging EgoSchema dataset compared to baseline models. Our model-agnostic approach is computationally efficient, requiring only 32 frames, offering a promising direction for self-aligned video understanding without reliance on external models or annotations.

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