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Solving the 30-Year Memory Paradox: Why Mamba Forgets, and How Lie-Group SO(2) Unitary Rotation Unlocks Lossless State Spaces (QU-SSM)

This story is from 2026-09-10. It is preserved in the archive; the latest stories are on the live feed.

For over thirty years, recurrent sequence modeling has been haunted by an unsolved mathematical paradox. Ever since Hochreiter (1991) and Bengio (1994) formulated the vanishing and exploding gradient problem, deep learning accepted an unspoken Faustian bargain: The Stability-Amnesia Paradox: If the…

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  1. 2026-09-10 10:55 · r/machinelearningnews
    Solving the 30-Year Memory Paradox: Why Mamba Forgets, and How Lie-Group SO(2) Unitary Rotation Unlocks Lossless State Spaces (QU-SSM)

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