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Long-Context State-Space Video World Models

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arxiv 2505.20171 v1 pith:UXRSKYHI submitted 2025-05-26 cs.CV

Long-Context State-Space Video World Models

classification cs.CV
keywords memoryextendedmodelsssmsattentioncomputationallong-termmodeling
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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Video diffusion models have recently shown promise for world modeling through autoregressive frame prediction conditioned on actions. However, they struggle to maintain long-term memory due to the high computational cost associated with processing extended sequences in attention layers. To overcome this limitation, we propose a novel architecture leveraging state-space models (SSMs) to extend temporal memory without compromising computational efficiency. Unlike previous approaches that retrofit SSMs for non-causal vision tasks, our method fully exploits the inherent advantages of SSMs in causal sequence modeling. Central to our design is a block-wise SSM scanning scheme, which strategically trades off spatial consistency for extended temporal memory, combined with dense local attention to ensure coherence between consecutive frames. We evaluate the long-term memory capabilities of our model through spatial retrieval and reasoning tasks over extended horizons. Experiments on Memory Maze and Minecraft datasets demonstrate that our approach surpasses baselines in preserving long-range memory, while maintaining practical inference speeds suitable for interactive applications.

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Cited by 11 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score.

  1. MemLearner: Learning to Query Context memory for Video World Models

    cs.CV 2026-06 unverdicted novelty 7.0

    MemLearner introduces a learning-based adaptive context query method using query tokens in video world models to improve long-term scene consistency over rule-based retrieval.

  2. Soap2Soap: Long Cinematic Video Remaking via Multi-Agent Collaboration

    cs.CV 2026-05 unverdicted novelty 7.0

    Soap2Soap uses a multi-agent system with dual-bridge consistency via JSON screenplays and visual anchors plus batch keyframe generation to achieve better long-term consistency in cinematic video remaking than commercial APIs.

  3. DIM-WAM: World-Action Modeling with Diverse Historical Event Memory

    cs.RO 2026-06 unverdicted novelty 6.0

    DiM-WAM is a memory-augmented world-action model that integrates multi-scale historical events and global task progress to improve long-horizon robot manipulation performance.

  4. Echo-Memory: A Controlled Study of Memory in Action World Models

    cs.CV 2026-06 unverdicted novelty 6.0

    A controlled study finds that block-wise state-space recurrence outperforms other memory designs for open-domain scene return in action-conditioned video models, and that standard replay metrics do not adequately meas...

  5. GeoFlow: Enforcing Implicit Geometric Consistency in Video Generation

    cs.CV 2026-05 unverdicted novelty 6.0

    GeoFlow adds a geometry-consistency reward based on rigid camera flow and object appearance preservation, integrated via reinforcement fine-tuning to improve geometric coherence in video generation.

  6. Geometry Forcing: Marrying Video Diffusion and 3D Representation for Consistent World Modeling

    cs.CV 2025-07 unverdicted novelty 6.0

    Geometry Forcing aligns video diffusion representations with geometric foundation model features via angular cosine and scale regression objectives to improve 3D consistency in generated videos.

  7. Self Forcing: Bridging the Train-Test Gap in Autoregressive Video Diffusion

    cs.CV 2025-06 unverdicted novelty 6.0

    Self Forcing trains autoregressive video diffusion models by performing autoregressive rollout with KV caching during training to close the exposure bias gap, using a holistic video-level loss and few-step diffusion f...

  8. Unlocking Temporal Generalization in Hamiltonian Video Dynamics Models

    cs.LG 2026-07 conditional novelty 5.0

    Spectral normalization of the action-force map and inference-time integrator substepping let port-Hamiltonian generative networks predict forced dissipative video dynamics at step sizes far outside training.

  9. DIM-WAM: World-Action Modeling with Diverse Historical Event Memory

    cs.RO 2026-06 conditional novelty 5.0

    Multi-bank similarity-merged event memory plus progress supervision raises long-horizon WAM success from 28.4% to 69.8% on RMBench and full-task success from 52.5% to 80% on real Franka tasks.

  10. Matrix-game 2.0: An open-source real-time and streaming interactive world model

    cs.CV 2025-08 unverdicted novelty 5.0

    Matrix-Game 2.0 introduces a scalable data pipeline, action-injection module, and few-step distillation to enable real-time streaming video generation at 25 FPS from game-engine interactions, with open-sourced weights...

  11. World Models: A Comprehensive Survey of Architectures, Methodologies, Reasoning Paradigms, and Applications

    cs.LG 2026-05 unverdicted novelty 3.0

    The paper delivers a multi-axis taxonomy for world models that maps architectures, training families, reasoning strategies, and domains from early cognitive foundations through systems such as Dreamer, MuZero, and Sor...