AWhat changed
Exhibited convex failure cases for naive sign compression and used stored compression residuals in future updates, analyzing error-feedback SGD and scaled sign variants.
Scientific scope
Exhibited convex failure cases for naive sign compression and used stored compression residuals in future updates, analyzing error-feedback SGD and scaled sign variants. Inherits earlier error-feedback implementations and convex analyses; contribution is broader corrective analysis/counterexamples, not invention of all feedback. Positive rates require a delta-approximate compressor, unbiased bounded-moment stochastic gradients and stated smoothness/convexity assumptions. Compression terms remain in higher-order smooth bounds and leading nonsmooth bounds; not arbitrary broken compressors or literally free computation/communication.
Evidence
The linked original sources describe the stated contribution and its evidence limits. WRS has not independently rerun the experiments or certified a proof. Inherits earlier error-feedback implementations and convex analyses; contribution is broader corrective analysis/counterexamples, not invention of all feedback. Positive rates require a delta-approximate compressor, unbiased bounded-moment stochastic gradients and stated smoothness/convexity assumptions. Compression terms remain in higher-order smooth bounds and leading nonsmooth bounds; not arbitrary broken compressors or literally free computation/communication.
Contributors
- Source-listed authors and technical contributors · SCIENCE: Source-listed authors or explicitly credited technical contributors for the cited versions. Family entries retain source-specific attribution; a combined list is not one original-paper byline or equal individual work. Names alone do not establish resolved identities.
Provisional WRS assessment, edition 2026-10-16.1. Independent expert calibration is pending. This grade does not certify correctness or assign ownership.
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