Beyond the Timeline: Augmenting Long-Video Memory with Grounded Entity Biographies

arXiv:2609.38155 · cs.CV, cs.AI, cs.CL, cs.IR, cs.LG · Submitted 2026-09-29 · Read on arXiv

cs.CV, cs.AI, cs.CL, cs.IR, cs.LG

Submitted: 2026-09-29

Updated: 2026-09-29

Terminology

• Benchmark — 30× in this paper · explained in 2 episodes
• Accuracy — 16× in this paper · explained in 1 episode
• Ablation — 12× in this paper · explained in 1 episode
• Grounding — 11× in this paper · explained in 3 episodes
• Grounded Entity Biographies — 8× in this paper
• Provenance — 4× in this paper · explained in 3 episodes
• Conference on Computer Vision and Pattern Recognition — 3× in this paper
• RAG — 3× in this paper · explained in 3 episodes
• Actor — 2× in this paper · explained in 3 episodes
• Consistency — 2× in this paper · explained in 3 episodes
• In European Conference on Computer Vision — 2× in this paper
• Trace — 2× in this paper · explained in 2 episodes
• Ablation Studies — 1× in this paper · explained in 1 episode
• Agentic Retrieval — 1× in this paper · explained in 1 episode
• Aggregation — 1× in this paper · explained in 1 episode
• CVF International Conference on Computer Vision — 1× in this paper
• Calibration — 1× in this paper · explained in 7 episodes
• Commentary — 1× in this paper · explained in 2 episodes
• Continual Learning — 1× in this paper · explained in 2 episodes
• Cosine Similarity — 1× in this paper · explained in 3 episodes
• Foundation Model — 1× in this paper · explained in 3 episodes
• Foundation Models — 1× in this paper · explained in 7 episodes
• International Conference on Learning Representations — 1× in this paper
• Knowledge Graph — 1× in this paper · explained in 7 episodes
• Knowledge graphs — 1× in this paper · explained in 2 episodes

Sources

• BoT-SORT: Robust Associations Multi-Pedestrian Tracking
• Towards Multimodal Lifelong Understanding: A Dataset and Agentic Baseline
• From Local to Global: A Graph RAG Approach to Query-Focused Summarization
• Bridging Modalities, Spanning Time: Structured Memory for Ultra-Long Agentic Video Reasoning
• Video-XL-2: Towards Very Long-Video Understanding Through Task-Aware KV Sparsification
• EgoGraph: Temporal Knowledge Graph for Egocentric Video Understanding
• InternVideo2.5: Empowering Video MLLMs with Long and Rich Context Modeling
• VideoLLaMA 3: Frontier Multimodal Foundation Models for Image and Video Understanding

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