pointsource_algs: src/measures.rs@d29d1fcf5423

src/measures.rs@d29d1fcf5423

src/measures.rs

Sun, 11 Dec 2022 23:25:53 +0200

author: Tuomo Valkonen <tuomov@iki.fi>
date: Sun, 11 Dec 2022 23:25:53 +0200
changeset 24: d29d1fcf5423
parent 0: eb3c7813b67a
permissions: -rw-r--r--

Support arbitrary regularisation terms; implement non-positivity-constrained regularisation.

* Fixes the conditional gradient methods that were incorrectly solving
positivity constrained subproblems although the infinite-dimensional
versions do not include such constraints.

* Introduces the `ExperimentV2` struct that has `regularisation` in place
of `α`. The `Experiment` struct is now deprecated.

* The L^2-squared experiments were switch to be unconstrained, as the
Franke-Wolfe implementations do not support constraints. (This would
be easy to add for the “fully corrective” variant, but is not
immediate for the “relaxed” variant.)

//! This module implementes measures, in particular [`DeltaMeasure`]s and [`DiscreteMeasure`]s.

mod base;
pub use base::*;
mod delta;
pub use delta::*;
mod discrete;
pub use discrete::*;
pub mod merging;