v0.5.17

Manopt v0.5.17

Diff since v0.5.16

Added

• Introduce a StopWhenCostChangeLess stopping criterion that stops when the cost function changes less than a given value.

Merged pull requests:

• CompatHelper: bump compat for Documenter to 1 for package docs, (keep existing compat) (#472) (@github-actions[bot])
• CompatHelper: bump compat for RipQP in [weakdeps] to 0.7, (keep existing compat) (#474) (@github-actions[bot])
• CompatHelper: bump compat for RipQP to 0.7 for package docs, (keep existing compat) (#475) (@github-actions[bot])
• add a new stopping criterion. (#476) (@kellertuer)

v0.5.16

Manopt v0.5.16

Diff since v0.5.15

Fixed

• fixes a bug in the LineSearches.jl extension, where two (old) retract!s were still
  present; they were changed to retact_fused!.

Merged pull requests:

• Inplace version of vectorize and reshape (#468) (@blegat)
• Fix retracts in LineSearches extension (#471) (@kellertuer)

Closed issues:

• Non-array manifold with JuMP/MOI (#274)

v0.5.15

Manopt v0.5.15

Diff since v0.5.14

Merged pull requests:

• Fix CMA-ES with nonpositive covariance eigenvalues (#467) (@mateuszbaran)

v0.5.14

Manopt v0.5.14

Diff since v0.5.13

Merged pull requests:

• Fixes printing of JuMP models containg Manopt solver (#462) (@blegat)
• add linear subsolver to LevenbergMarquardt API (#463) (@mateuszbaran)
• Adapt to the new default_basis function. (#464) (@kellertuer)
• Switch to using QuartoNotebookRunner (#465) (@kellertuer)

v0.5.13

Manopt v0.5.13

Diff since v0.5.12

Merged pull requests:

• Add support for Riemanian objective through JuMP (#448) (@blegat)
• Remove leftover from merge (#452) (@blegat)
• Use scaled objective (#453) (@blegat)
• Wrap objective in JuMP wrapper (#455) (@blegat)
• Do not scale the cost function twice. (#457) (@kellertuer)
• fixing issues in quasi-Newton docs (#458) (@mateuszbaran)
• Fix a typo. (#459) (@kellertuer)
• Refactor Tests a bit (#460) (@kellertuer)
• Fix a small bug in Quasi Newton initialisation (#461) (@kellertuer)

Closed issues:

• Riemannian black box function with JuMP/MOI (#273)
• Remove the circular dependency in the tests to ManopExamples (#438)
• Scaled objective not working (#456)

v0.5.12

Manopt v0.5.12

Diff since v0.5.11

Added

• a ScaledManifoldObjective to easier build scaled versions of objectives,
  especially turn maximisation problems into minimisation ones using a scaling of -1.
• Introduce a ManifoldConstrainedSetObjective
• Introduce a projected_gradient_method

Merged pull requests:

• Help with a small objective wrapper to scale objectives (#449) (@kellertuer)
• minor improvements for scaled objective (#450) (@mateuszbaran)
• Add a projected gradient method. (#451) (@kellertuer)

v0.5.11

Manopt v0.5.11

Diff since v0.5.10

Added

• Configurable subsolver for the linear subproblem in Levenberg-Marquardt. The default subsolver is now also robust to numerical issues that may cause Cholesky decomposition to fail.

Merged pull requests:

• Customizable subsolver for Levenberg-Marquardt (#447) (@mateuszbaran)

Closed issues:

• Small example of inaccurate tracing retraction. (#446)

v0.5.10

Manopt v0.5.10

Diff since v0.5.9

Fixed

• a proper implementation of the preconditioning for quasi_Newton, that can be used instead
  of or in combination with the initial scaling.

Merged pull requests:

• Fix preconditioning for QN. (#445) (@kellertuer)

v0.5.9

Manopt v0.5.9

Diff since v0.5.8

Added

• add a PreconditionedDirection variant to the direction gradient processor
  keyword argument and its corresponding PreconditionedDirectionRule
• make the preconditioner available in quasi Newton.
• in gradient_descent and conjugate_gradient_descent the rule can be added anyways.

Fixed

• the links in the AD tutorial are fixed and moved to using extref

Merged pull requests:

• Fix links and move them to extref in the AD tutorial. (#443) (@kellertuer)
• Add a PreconditionedDirection direction rule (#444) (@kellertuer)

Closed issues:

• The link back to change_representer is not updated in use automatic differenentiatio tutorial (#442)

v0.5.8

Manopt v0.5.8

Diff since v0.5.7

Fixed

• fixed a small bug in the NonmonotoneLinesearchStepsize hwn the injectivity radius is an irrational number.
• fixed a small bug in check_gradient where eps might have been called on complex types.
• fixed a bug in several gradient based solvers like quasi_newton, such that they properly work with the combined cost grad objective.
• fixes a few typos in the docs.

Merged pull requests:

• Fix two small bugs. (#440) (@kellertuer)
• Fix a bug where QN did not accept CombinedCostGrad objectives. (#441) (@kellertuer)