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added 28 commits
September 18, 2026 15:10
…ransformation matrix T internally, returning T %*% X with noise fused into a single matrix multiply.
…ng to David's suggestion
Lets a DML script declare its session-wide differential-privacy budget once at the top, instead of always falling back to the hardcoded default. Resolved entirely at compile time: epsilon/delta must be literals, validated in BuiltinFunctionExpression and stored on DMLProgram during HOP construction, then read by ExecutionContext.getDPBudgetAccountant().
Four federated workers simulated on localhost, a logistic regression FedAvg loop in DML where the coordinator applies dp_gaussian to the aggregated gradient, a sweep over ε ∈ {0.5, 1, 4, 8} plus a non-private baseline, and a matplotlib accuracy-vs-ε plot saved as a PNG.
Add clip_norm (default 4.0) as a script parameter. Inside the private == 1 branch, each row's gradient contribution is clipped to L2-norm less than clip_norm.
…ntical dp_laplace or dp_gaussian calls are never be merged into one execution.
…betically ParamBuiltinOp
Flip Builtins.DP_LAPLACE/DP_GAUSSIAN to parameterized=true so the parser builds a ParameterizedBuiltinFunctionExpression for these calls instead of a positional BuiltinFunctionExpression. This lets them reuse the existing varParams-based parsing, instead of hand-unpacking expr/expr2/expr3 by position in DMLTranslator and re-deriving parameter names from argument order in BuiltinFunctionExpression. Laplace and Gaussian validation is merged into one validateDpMechanism(), varying only on whether 'delta' is required, since the two mechanisms differ by exactly that one optional parameter.
…d laplace - Well1024a
…on type DPBuiltin
…nCPInstruction, owning parse validation, processInstruction(), and the lineage-refusal — all DP instruction-level concerns now live in one file
…hich defines two global constants define these constants as environment variables instead
…acy benchmark to the staging folder
…nchmark as it is not working out of the box
remove unnecessary comments and shorten method headers
Codecov Report✅ All modified and coverable lines are covered by tests. Additional details and impacted files@@ Coverage Diff @@
## main #2617 +/- ##
==========================================
- Coverage 74.94% 74.91% -0.04%
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Files 436 436
Lines 25237 25237
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- Hits 18915 18906 -9
- Misses 6322 6331 +9
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… parsing tests fix(test/functions/privacy/dp/DPBuiltinDMLTest.java): use dml script files for test execution feat(test/scripts/functions/privacy/dp/**): create dml test scripts
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Intermediate PR for merging #2539.
(If anybody knows a better way to verify the CI tests when merging larger PRs with multiple changes that were made during the merge, please inform me.)