Deep Video Discovery
Deep Video Discovery: Agentic Search with Tool Use for Long-form Video Understanding
Xiaoyi Zhang, Zhaoyang Jia, Zongyu Guo, Jiahao Li, Bin Li, Houqiang Li, et al. · 2025-05-23
- Management
- T1 Static Memory
- Memory is built once and reused without change during deployment.
- Representation
- Hybrid
- Distinct operative representation paths are explicitly linked for downstream retrieval, reasoning, or control.
How experience becomes memory
Each path is one memory component, traced from what is stored to how it is found again.
segmented clips and raw frames
- Represented asRetained perceptual source evidenceSource- and modality-specific
- Stored inHierarchical multi-tier store
- Retrieved byPlanner / tool-assisted retrieval, Metadata / spatiotemporal retrieval
- Source evidenceSource directly available
The multigranular database retains clips and inspectable frames.Full-paper method / memory representation and retrieval · PDF p. 4 · Figure 1
clip captions and summaries
- Represented asPerception-to-text records & summariesCross-represented explicit
- Stored inHierarchical multi-tier store, Vector-indexed collection
- Retrieved bySimilarity search, Planner / tool-assisted retrieval
- Source evidenceSource linked & recoverable
Global and clip search use summaries, captions, embeddings, and time ranges.Full-paper method / memory representation and retrieval · PDF p. 5 · Figure 1
Related systems
- EgoButlerT1 · Video & streaming
- HiMeT2 · Embodied & 3D
- HippoMMT1 · Video & streaming
- LongVideoAgentT1 · Video & streaming
- MARST1 · Video & streaming
- UniversalRAGT1 · Video & streaming