v0.4.54

Manopt v0.4.54

Diff since v0.4.53

Added

• convex_bundle_method optimization algorithm for non-smooth geodesically convex functions
• proximal_bundle_method optimization algorithm for non-smooth functions.
• StopWhenSubgradientNormLess, StopWhenLagrangeMultiplierLess, and stopping criteria.

Fixed

• Doc strings now follow a vale.sh policy. Though this is not fully working,
  this version however improves a lot of the doc strings concerning wording and spelling.

Merged pull requests:

• Introduce text checks (vale.sh) on Docstrings and comments (#353) (@kellertuer)
• Implementation of two bundle methods (#357) (@hajg-ijk)

v0.4.53

Manopt v0.4.53

Diff since v0.4.52

Fixed

• fixes two storage action defaults, that accidentally still tried to initialize a :Population (as modified back to :Iterate 0.4.49).
• fix a few typos in the documentation and add a reference for the subgradient menthod.

Merged pull requests:

• Kellertuer/fix storages (#356) (@kellertuer)

Closed issues:

• Add Warning if gradient larger than injectivity radius. (#346)

v0.4.52

Manopt v0.4.52

Diff since v0.4.51

Added

• introduce an environment persistent way of setting global values with the set_manopt_parameter! function using Preferences.jl.
• introduce such a value named :Mode to enable a "Tutorial" mode that shall often provide more warnings and information for people getting started with optimisation on manifolds

Merged pull requests:

• Bump codecov/codecov-action from 3 to 4 (#355) (@dependabot[bot])

v0.4.51

Manopt v0.4.51

Diff since v0.4.50

Added

• A StopWhenSubgradientNormLess stopping criterion for subgradient-based optimization.

Merged pull requests:

• Allow d.msg in DebugIfEntry to contain an identifier to print the field (#351) (@kellertuer)
• Add StopWhenSubgradientNormLess stopping criterion (#352) (@hajg-ijk)

v0.4.50

Manopt v0.4.50

Diff since v0.4.49

Fixed

• Fix Quasi Newton on complex manifolds.

Merged pull requests:

• Bump actions/cache from 3 to 4 (#348) (@dependabot[bot])
• Fix Quasi Newton for complex Manifolds (#350) (@kellertuer)

v0.4.49

Manopt v0.4.49

Diff since v0.4.48

Added

A StopWhenEntryChangeLess to be able to stop on arbitrary small changes of specific fields
generalises StopWhenGradientNormLess to accept arbitrary norm= functions
refactor the default in particle_swarm to no longer “misuse” the iteration change check,
but actually the new one one the :swarm entry

Merged pull requests:

• Introduced an entry change stopping criterion and generalise the gradient norm SC. (#345) (@kellertuer)

v0.4.48

Manopt v0.4.48

Diff since v0.4.47

Fixed

• fixes an imprecision in the interface of get_iterate that sometimes led to the swarm of particle_swarm being returned as the iterate.
• refactor particle_swarm in naming and access functions to avoid this also in the future.
  To access the whole swarm, one now should use get_manopt_parameter(pss, :Population)

Merged pull requests:

• Differentiate more precisely bewteen swarm and iterate in PSO more stricly (#344) (@kellertuer)

v0.4.47

Manopt v0.4.47

Diff since v0.4.46

Fixed

• fixed a bug, where the retraction set in check_Hessian was not passed on to the optional inner check_gradient call, which could lead to unwanted side effects, see #342.

Merged pull requests:

• Fix a bug where the retraction method in check_Hessianwas not passed on (#343) (@kellertuer)

Closed issues:

• quasi_Newton has issue with negative memory size. (#340)
• check_Hessian: retraction_method is not passed to gradient check (#342)

v0.4.46

Manopt v0.4.46

Diff since v0.4.45

Changed

• An error is thrown when a line search from LineSearches.jl reports search failure.
• Changed default stopping criterion in ALM algorithm to mitigate an issue occurring when step size is very small.
• Default memory length in default ALM subsolver is now capped at manifold dimension.
• Replaced CI testing on Julia 1.8 with testing on Julia 1.10.

Fixed

• A bug in LineSearches.jl extension leading to slower convergence.
• Fixed a bug in L-BFGS related to memory storage, which caused significantly slower convergence.

Merged pull requests:

• Fixes from benchmark (#341) (@mateuszbaran)

v0.4.45

Manopt v0.4.45

Diff since v0.4.44

Manopt.jl 0.4.45

Added

• Introduce sub_kwargs and sub_stopping_criterion for trust_regions as noticed in #336

Changed

• WolfePowellLineSearch, ArmijoLineSearch step sizes now allocate less
• linesearch_backtrack! is now available
• Quasi Newton Updates can work inplace of a direction vector as well.
• Faster safe_indices in L-BFGS.

Merged pull requests:

• Faster safe_indices (#334) (@mateuszbaran)
• Improve Linesearch and Quasi Newton allocations (#335) (@kellertuer)
• Introduce sub_kwargs also for Trust Regions (#337) (@kellertuer)

Closed issues:

• Improving performance of L-BFGS (#333)