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New NC-SSM models overcome limitations of Mamba, S4D, and LRU

Researchers have introduced Non-Commutative State Space Models (NC-SSM) to address limitations in existing selective state space models like Mamba. These new models, including SO(3)-SSM and Cayley-SSM, extend state transitions to compact Lie groups, enabling exact norm-preserving isometry. Benchmarks demonstrate that NC-SSM significantly outperforms diagonal models in tracking complex groups such as A_5 and S_5, and preserves Riemannian manifolds with minimal drift. AI

IMPACT Introduces new modeling techniques that could improve performance on tasks requiring long-range associative memory and complex group tracking.

RANK_REASON The item is an academic paper introducing novel models and experimental results. [lever_c_demoted from research: ic=1 ai=1.0]

Read on arXiv cs.LG →

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New NC-SSM models overcome limitations of Mamba, S4D, and LRU

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The item is an academic paper introducing novel models and experimental results. [lever_c_demoted from research: ic=1 ai=1.0]
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COVERAGE [1]

  1. arXiv cs.LG TIER_1 English(EN) · Zeyu Jia (School of Biomedical Engineering,Technology, Tianjin Medical University, Medical School, Tianjin University) ·

    Beyond Diagonal State Space Models: Exact Non-Abelian Group Tracking, Solvability Barriers, and Geometric Physical Manifolds

    arXiv:2610.00329v1 Announce Type: new Abstract: Selective state space models (SSMs), such as Mamba, S4D, and LRU, are bounded by transition matrix commutativity (A_t A_t' = A_t' A_t) and solvable affine transformation groups (Aff_D of derived length <= 2). Consequently, stacked m…