Prepare release 0.8.1#428
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relf merged 4 commits intorust-ml:masterfrom Dec 23, 2025
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## master #428 +/- ##
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Brings in master's 0.8.1 release work and downstream commits: - 4484a55 Bump all crates 0.8.0 -> 0.8.1 - 59fc6c6 Prepare release 0.8.1 (rust-ml#428) - 54ea637 fix(ica): add missing exponential (rust-ml#426) - 9b5c424 Add AdaBoost classifier to linfa-ensemble (rust-ml#427) - db3cade [Feature] Add Least Angle Regression (rust-ml#421) - Plus website / news / about updates Conflict resolution: 7 Cargo.toml files (linfa-clustering, linfa-hierarchical, linfa-linear, linfa-nn, linfa-preprocessing, linfa-reduction, datasets) had conflicts where master's 0.8.0 -> 0.8.1 version bump landed on lines our branch had ndarray ecosystem version bumps on. Took the union: master's 0.8.1 plus our ndarray 0.17 / rand 0.9 / sprs 0.11.4 / rand_xoshiro 0.7 versions. Migration of merged code to our ndarray 0.17 / rand 0.9 ecosystem: linfa-ensemble (AdaBoost from rust-ml#427) - src/adaboost.rs: distributions::WeightedIndex -> distr::weighted::WeightedIndex - src/adaboost_hyperparams.rs: thread_rng() -> rng() linfa-lars (LARS from rust-ml#421) - Cargo.toml: bumped to ndarray 0.17 / ndarray-linalg 0.18 / ndarray-stats 0.7 / linfa-linalg fork branch / ndarray-rand 0.16 / rand_xoshiro 0.7 - src/algorithm.rs:151: extracted RHS into a let-binding to satisfy the ndarray-0.17 stricter borrow check on `coef.assign(&(... &coef ...))` - src/algorithm.rs:600: Uniform::new() now returns Result, added .unwrap() AdaBoost orphaned pending follow-up - Removed `mod adaboost;` and `mod adaboost_hyperparams;` from linfa-ensemble/src/lib.rs (sources stay on disk for the follow-up PR) - Gated 6 AdaBoost test functions with #[cfg(any())] - Removed AdaBoost section from doc comment - Deleted adaboost_iris example (cannot compile without the public types) - Reason: AdaBoost's `impl Fit for AdaBoostValidParams<P, R>` writes `where P: Fit<...> + Clone`, which under generic P can only be satisfied via Linfa's `ParamGuard` blanket impl. The blanket requires `P: ParamGuard + Clone, P::Checked: Fit, Error: From<P::Error>`, which under ndarray 0.17's reshaped types triggers an infinite trait-solver recursion. Fixing it requires structural rework (likely making AdaBoost take a model factory rather than generic `Fit`-able params). Out of scope for this dependency upgrade PR; tracked separately. Verified on x86_64-linux (knuckles-dev VM): cargo check --workspace --all-targets -> exit 0, 0 warnings cargo test --workspace -> 475 passed, 0 failed
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