2.6.3

Release for the BBOB-2023 workshop.

Important changes

• Improved styles in the ECDF graphs.
• Existing data sets are pickled for performance.
• Fixed construction of bbob-constrained problems to make initial point feasible and within bounds.
• LaTeX templates and default function instances updated for BBOB-2023 workshop.
• Corrections within tables, in particular wrt. statistical tests.
• Rust bindings fixed and Rust CI added.

Bugs fixed

• Too large samplesize for bootstrap when run numbers are divers (commit 3b81d0b)
• #2092 maxevals should be consistent with evals in constrained set
• #2097 xlimit bug introduced with commit f5289e3
• Small corrections in LaTeX template for bbob-constrained suite
• #2106 (using maxfgevals for bbob-constrained suite)
• #2098 by ignoring tiny x-shifts away from zero in the raw constraint(s) evaluation
• #2184 Post-processing no longer requires a working internet connection.
• #2089 by changing order of ifs
• fix detection of GLOBAL for crafting effort CrEperAlg
• Problem with background algorithms not shown in the background.

Others

• fixed compiler warning from f_sharp_ridge.c (ddec8e7)
• test with bbob-constrained data set added to the nightly build
• added new bbob and bbob-constrained data sets as well as the missing postprocessed data from all official data sets until 2021
• Update of BibTeX entries
• Improved documentation here and there
• Start to move away from C89 towards C99

2.6.2

Fix wrong best_value computation for constrained linear functions. This affects the performance computation in particular on f13 and (to a lesser extend) f14 and other linear functions of the constrained testbed. Also ACM latex templates for the constrained testbed are updated.

2.6.1

Correction of an undesirable shift of the flat region of the linear slope function in the constrained testbed.

2.6

Release 2.6 for BBOB-2022 workshop experiments

New Features:

• bbob-constrained test suite with 54 problems in 6 dimensions in code-experiments
  • Rescale objective to avoid too easy targets
  • Disguise function gradient
  • Add inactive constraints
  • Add the rotated Rastrigin function
• Post-processing of data with constraints
  • DataSetList.by method
  • New function groups (separable, ill-conditioned, multimodal and all; by number of constraints)
  • number_of_constraints, has_constraints attributes of a Testbed
  • Dynamic caption setting whether the testbed has constraints or not.
  • New files ppfigcons1.py and compall/ppfigcons.py for scaling plots vs number of constraints
• addressing issue #1117: runtime distributions are by default instance-wise balanced, such that providing more runs/trials on one instance than others does not introduce a bias.
• Documentation online

Bug fixes:

• Improvements of the C code #2070

• ERT computation 1bc7bad

• inconsistent data b/2009/CMA-ESPLUSSEL_auger 2af85f1

• improved sample size computation 7936880

• fix write_tables #2038

• add install-user option in circleci 3c6fb2a

Other updates:

• LaTeX templates updated for BBOB-2022 workshop
• polishing of ECDFs and x limits in post-processing
• Build files #2071

2.5

New Features/Adjustments:

• A single LaTeX template for bbob, independent of how many algorithms are compared.
• Updated links in documentation due to shutdown of Inria GForge server.

Bug Fixes:

• Using a new location of the data archive related to shutdown of Inria GForge server
• python example_experiment2 now works with bbob-mixint
• #1702 (cocoex module now has __version__)
• further fixes: #1990, #2023, #2020, #2026, #2029, and #2036

Additional Changes:

• further clean-up of LaTeX code
• coco_url is not fixed anymore in cocopp module

2.4

New Features/Adjustments:

• Installing of postprocessing via pip install cocopp possible (cocopp is finally on PyPI)
• Default figure size significantly reduced; ACM-compliant figures still possible through new --include-fonts option
• Added continuous integration tests in Python 3.7
• Dropped Python 2 support (#1956)
• Made so-called orange color less yellow in all figures
• Submission of datasets possible through new issue templates
• Naming of datasets more consistent (#1862)

Bug Fixes:

• Changed long-time deprecated and now non-supported time.clock() into time.process_time() (#1950)
• Corrected axes and ticks labels in scatter plot (addressing issues #1934, #1837, and #1824)
• Reading in info-files with chars like é does not raise an error anymore.
• problems with numpy's multithreading solved (#1919)
• matplotlib 3.3.2 warning silenced (thanks @MLopez-Ibanez)
• bug fix 4ceb72a simulated restart sample number

Additional Changes:

• Refactoring of rungeneric.py, rungenericmany.py, and rungeneric1.py to reduce code duplication and to improve documentation (see #39 and #1595)
• _data_folder attribute is now always without trailing path separator
• Addressed/Reduced several warnings, for example #1958
• New test (two calls of cocopp.main without quitting Python in between, #1965)
• reverted aRT to ERT also in LaTeX templates

2.3.3

Minor release to solve bugs #1939 and #1550, related to the runtime ratio plots when comparing two algorithms.

Other Adjustments:

• replaced aRT with ERT (#1935)

2.3.2

Minor release with a few bugfixes.

New Features/Adjustments:

• adjustments according to new Matplotlib version
• bbob-largescale and bbob data are now compatible
• improved archiving

Bug Fixes::

• #1917, #1894
• removed a few compiler warnings

2.3.1

Release for final papers of BBOB-2019 workshop.

New Features:

• Data sets from both the bbob-biobj and bbob-biobj-ext can be compared.
• Support for Java 10+ (#1741); many thanks to @pszynk
• no simulated restarts anymore for multiobjective suites due to too high differences among instances

Bug Fixes::

• Corrected widths of ECDF plots in pdf output for bbob-biobj and bbob-biobj-ext suites
• broken link on webpage (#1874)
• added the missing cocoProblemGetLargestFValuesOfInterest.m file in Matlab wrapper
• finding '.t' in filename to extract resulted in problems when username had exactly this substring

2.3

New Features

• support of discrete variables
• new bbob-largescale test suite with 24 functions in dimensions 20 to 640
• new bbob-mixint test suite, a discretized version of the bbob test suite
• new bbob-biobj-mixint test suite, a discretized version of the bbob-biobj-ext test suite
• the order of input arguments to cocopp.main is preserved as the order in which algorithms are displayed and in particular the order in which the colors are chosen.
• improved COCODataArchive
• revised example_experiment2.py

Solved Bugs

• bug in SMS-EMOA example (issue #1853)

Others

• adjustments to support matplotlib 3.0.0