2.8.0

What's Changed

• Add combination of kernels handling by @NicolasJeanGonel in #653
• Add implementation of the multi-fi cokriging model, MFCK (see tutorial) by @mcastanoUQ in #657
• Add save/load methods to GPX surrogate model by @relf in #658
• Move advanced design space handling in separate smt-design-space-ext module by @Paul-Saves in #651
• Remove smt dependency to ConfigSpace and adsg-core by @Paul-Saves in #663
• Refactor smt.design_space by @relf in #665, #666, #667
• Make error message to increase nugget more actionable. by @NAThompson in #661
• Fix continuous relaxation compatibility with hierarchical modeling by @Paul-Saves in #660, #664
• Update SMT tutorials, doc, affiliation by @Paul-Saves in #668, #669, #671
• Update kernel engineering notebooks by @jomorlier in #674
• Bump pypa/cibuildwheel from 2.21.1 to 2.21.3 by @dependabot in #662
• Prepare release 2.8 by @relf in #675

Implementation Note

In this release, advanced design space management has been moved in a separate smt-design-space-ext module to decouple smt from special design space implementations allowing hierarchical variables handling.

New Contributors

• @mcastanoUQ made their first contribution in #657

Full Changelog: v2.7.0...v2.8.0

2.7.0

What's Changed

• Add cooperative components kriging model as application (see doc and tutorial) by @lisapretsch in #642
• Refactor kernel functions in class-based kernels for kriging by @NicolasJeanGonel in #622
• Add EGO with noisy data by @MaelTremouille and @Paul-Saves in #646
• Add methods (random or kmeans) to induce points in SGP by @MaelTremouille and @relf in #633
• Add documentation for local bases by @Shisohka in #632
• Add tutorial and notebooks ruff linting by @NatOnera and @Paul-Saves in #639, #643
• Update POD+I documentation by @sdubreui and @Paul-Saves in #654
• Add test for predict_variance_derivatives in gpx by @Paul-Saves in #640
• Clean utils after switching from genn to jenn by @Paul-Saves in #626
• Fix bugs in likelihood computation by @Paul-Saves in #634
• Fix SGP for non-normalized data by @Paul-Saves in #638
• Fix continuous relaxation and hierarchical handling by @Paul-Saves in #647
• Fix is_ri computational time by @Paul-Saves in #652
• Bump pypa/cibuildwheel from 2.19.2 to 2.21.1 by @dependabot in #635, #644 and #655
• Drop Python 3.8 support by @relf in #656

New Contributors

• @lisapretsch made their first contribution in #642
• @sdubreui made their first contribution in #654

Full Changelog: v2.6.3...v2.7.0

2.6.3

What's Changed

• Add spatial derivatives to squar_sin_exp kernel for kriging-based surrogates by @NicolasJeanGonel in #582
• Add ill-conditioned training check method for kriging-based surrogates by @Paul-Saves in #605
• Add SGP notebook by @Paul-Saves in #605
• Add mixed-integer KPLSK by @Paul-Saves in #607
• Add local bases computation in PODI by @Shisohka in #610
• Format with ruff 0.5.0 by @Paul-Saves in #608
• Bump pypa/cibuildwheel from 2.19.1 to 2.19.2 by @dependabot in #616
• Rework tests to reduce CI execution time by @relf in #604
• Fix EI warning divide by zero by @Paul-Saves in #614
• Fix AI transpose by @Paul-Saves in #619
• Fix kplsk for retraining by @Paul-Saves in #618
• Fix broken link in the documentation by @NicolasJeanGonel in #617

Full Changelog: v2.6.2...v2.6.3

2.6.2

What's Changed

• Document example with less expensive parameters by @NAThompson in #580
• Add computation of the variance gradient at a given point in kriging-based surrogates by @relf in #584
• Use numpy 1.x in CI tests and requirements by @relf in #589
• Bump pypa/cibuildwheel from 2.18.1 to 2.19.1 by @dependabot in #587
• Add a GPR section in the documentation by @relf in #591
• Support for Python 3.12 by @relf in #575
• Test with ConfigSpace on py3.11 by @relf in #593
• Noisy gp and gpx tests in EGO by @MaelTremouille in #592
• Support scipy 1.14 by @relf in #600
• Prepare release 2.6.2 by @relf in #596

New Contributors

• @MaelTremouille made their first contribution in #592

Full Changelog: v2.6.1...v2.6.2

2.6.1

What's Changed

• Add second derivatives for squar_sin_exp kernel by @NicolasJeanGonel in #561
• Fix tol option deprecation in scipy solvers by @relf in #568
• Fix RMTC model: fix signed integer overflow by @NAThompson in #572
• Fix kriging-based models: fix TNC optimization by @Paul-Saves in #567
• Fix RMTB model: filter column indices of sparse matrix to ensure non-negativity by @NAThompson in #576
• Update notebooks by @NatOnera in #567
• Bump pypa/cibuildwheel from 2.18.0 to 2.18.1 by @dependabot in #577
• Prepare release 2.6.1 by @relf in #578

New Contributors

• @NicolasJeanGonel made their first contribution in #561
• @NAThompson made their first contribution in #572

2.6.0

What's Changed

Thanks to @Shisohka, SMT gets a new application: Proper Orthogonal Decomposition + Interpolation
More information in the documentation and the dedicated notebook.

• Setup of the PODI application by @Shisohka in #547
• Documentation for PODI application by @Shisohka in #553
• Adding PODI application notebook by @Shisohka in #563
• Fix design space for list by @Paul-Saves in #551
• Fix MFK check when using heteroscedastic noise by @relf in #554
• Fix indentation error in squar_sin_exp kernel by @Paul-Saves in #558
• Fix notebook Engineering application composite materials test case by @Paul-Saves in #559
• Update hierarchical variable doc for continuous lower than relationships by @Paul-Saves in #552
• Update notebooks by @NatOnera and @Paul-Saves in #556
• Bump pypa/cibuildwheel from 2.17.0 to 2.18.0 by @dependabot in #557

New Contributors

• @Shisohka made their first contribution in #547

Full Changelog: v2.5.1...v2.6.0

2.5.1

What's Changed

• Add derivatives prediction methods to GPX kriging-like surrogate by @relf in #543
• Add a warning on numerical issue and add tests for kriging-based surrogates by @Paul-Saves in #539
• Ruff formatting by @Paul-Saves in #540
• Fix variance prediction for large output values by @Paul-Saves in #542
• Fix KPLSK performances (thanks to Lisa Pretsch) by @Paul-Saves in #544
• Speed up computations related to DesignSpace by @Paul-Saves in #548
• Prepare release 2.5.1 by @relf in #550

Full Changelog: v2.5.0...v2.5.1

2.5.0

What's Changed

• Add GPX surrogate model which wraps kriging model from egobox library by @relf in #530
• Refactor GENN surrogate model which now depends on jenn library with improved performances by @shb84 in #517
• Fix numba test and remove numpy deprecation by @Paul-Saves in #518
• Fix warnings by @relf in #519 and #520
• Fix Ordinal and Integer constraints in DesignSpace by @Paul-Saves in #525
• Fix a bug for mixed-integer variables by @Paul-Saves in #529
• Fix cliping in design space by @Paul-Saves in #532
• Fix noise test bad indentation by @Paul-Saves in #531
• Run CI tests in parallel by @relf in #521
• Use ruff as formatter and linter by @relf in #515 and #524
• Test non-zero variance with noise by @Paul-Saves in #533
• Add noisy kriging example by @Paul-Saves in #527
• Update Kriging with noise tutorial by @NatOnera in #536
• Prepare release 2.5.0 by @relf in #535

Full Changelog: v2.4.0...v2.5.0

2.4.0

What's Changed

• Add Compound Symmetry kernel by @Paul-Saves in #508
• Add SquaredSineExp kernel to kriging kernels by @Paul-Saves in #512
• Use Cobyla by default for noisy Kriging by @Paul-Saves in #511
• Update SMT 2.0 paper reference from 2023 to 2024 by @Paul-Saves in #502
• Update to 2024 versions for black 24 and scikit-learn 1.4 by @Paul-Saves in #504
• Fix bug related to noise evaluation for redundants points by @Paul-Saves in #509
• Fix pypi build release job following actions v4 upgrade by @relf in #501
• Clean internal optimization within Kriging by @Paul-Saves in #505
• Clean mixed integer sampling & seeding by @Paul-Saves in #506
• Clean RMS error computation function import by @Paul-Saves in #513
• Bump pypa/cibuildwheel from 2.16.2 to 2.16.4 by @dependabot in #503
• Bump pypa/cibuildwheel from 2.16.4 to 2.16.5 by @dependabot in #507

Full Changelog: v2.3.0...v2.4.0

2.3.0

What's Changed

• Add pyDOE designs as sampling methods by @Antoine-Averland in #477
• SparseGP improvements:
  • Add proper variance optimization when using SGP by @relf in #491
  • Avoid distances computation when using SGP by @relf in #497
  • Avoid diagonal matrix creation in SGP/FITC training by @hvalayer in #499
• Documentation:
  • Update mixed-integer applications notebook by @Paul-Saves in #483
  • Update notebooks (SMT main and MFK tutorials) by @NatOnera in #489
  • Update SMT 2.0 paper by @Paul-Saves in #492
• Fixes:
  • Make krg_based training reproducible by @relf in #490
  • Remove design_space future deprecations and update metadata by @Paul-Saves in #488
  • Fix doc build: remove test assertion from run method by @relf in #484
  • Bump actions/setup-python from 4 to 5 by @dependabot in #493
  • Bump actions/download-artifact from 3 to 4 by @dependabot in #495
  • Bump actions/upload-artifact from 3 to 4 by @dependabot in #496
  • Prepare release 2.3 by @relf in #500

New Contributors

• @Antoine-Averland made their first contribution in #477

Full Changelog: v2.2.1...v2.3.0

✨ Merry ChriSMTas! ✨