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Theoretical Limits of Language Model Alignment $f$-Divergence Regularized RLHF: Two Tales of Sampling and Unified Analyses A Unified Measure-Theoretic View of Diffusion, Score-Based, and Flow Matching Generative Models When Can Voting Help, Hurt, or Change Course? 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On the Capacity of the Multiuser Vector Adder Channel
Alexey Frolov, Pavel Rybin, Victor Zyablov · 2014-01-10 · via cs.IT updates on arXiv.org

We investigate the capacity of the $Q$-frequency $S$-user vector adder channel (channel with intensity information) introduced by Chang and Wolf. Both coordinated and uncoordinated types of transmission are considered. Asymptotic (under the conditions $Q \to \infty$, $S = γQ$ and $0 < γ< \infty$) upper and lower bounds on the relative (per subchannel) capacity are derived. The lower bound for the coordinated case is shown to increase when $γ$ grows. At the same time the relative capacity for the uncoordinated case is upper bounded by a constant.

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