AWhat changed
Recast continual-release private sums and momentum schedules as matrix mechanisms, analyzing Gaussian privacy under adaptive inputs and computing error-efficient factorizations with a fixed-point method.
Scientific scope
Recast continual-release private sums and momentum schedules as matrix mechanisms, analyzing Gaussian privacy under adaptive inputs and computing error-efficient factorizations with a fixed-point method. Original v1 has three authors; expanded v3 has five, adds adaptive-stream theory/application and a different title. Gaussian adaptive transfer requires a lower-triangular full-rank query and bounded transformed neighboring-stream sensitivity; not arbitrary noise. Factorization error optimality is within the stated mechanism/error class. Fixed-point convergence is proved locally while global behavior is numerical; single-pass adjacency cannot silently cover unrestricted repeated user participation.
Evidence
The linked original sources describe the stated contribution and its evidence limits. WRS has not independently rerun the experiments or certified a proof. Original v1 has three authors; expanded v3 has five, adds adaptive-stream theory/application and a different title. Gaussian adaptive transfer requires a lower-triangular full-rank query and bounded transformed neighboring-stream sensitivity; not arbitrary noise. Factorization error optimality is within the stated mechanism/error class. Fixed-point convergence is proved locally while global behavior is numerical; single-pass adjacency cannot silently cover unrestricted repeated user participation.
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.
- Private Online Prefix Sums via Optimal Matrix Factorizations
- Improved Differential Privacy for SGD via Optimal Private Linear Operators on Adaptive Streams
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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