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(Forthcoming)

Changelog

API

  • Add DensityRanker for density descent search ({pr}483)
  • Add NoveltyRanker for novelty search ({pr}477)
  • Add proximity_archive_plot for visualizing ProximityArchive ({pr}476, {pr}480)
  • Support novelty search with local competition in ProximityArchive ({pr}481)
  • Add ProximityArchive for novelty search ({pr}472, {pr}479, {pr}484)
  • Support diversity optimization in Scheduler.tell ({pr}473)
  • Allow specifying separate dtypes for solution, objective, and measures ({pr}471)
  • Replace archive.dtype with archive.dtypes dict that holds dtype of every field ({pr}470)

Documentation

  • Switch from std to var in arm tutorial ({pr}486)
  • Fix documentation conf for readthedocs deprecations ({pr}485)
  • Add novelty search with CMA-ES to sphere example ({pr}478, {pr}482)

Improvements

  • Remove _cells attribute from ArchiveBase ({pr}475)
  • Upgrade setup-miniconda to v3 due to deprecation ({pr}464)

0.7.1

This release introduces the QDHF tutorial! It also makes a couple of minor usability improvements, such as better error checking.

Changelog

API

  • Support Python 3.12 ({pr}390)

Improvements

  • Add qd score to lunar lander example ({pr}458)
  • Raise error if result_archive and archive have different fields ({pr}461)
  • Warn user if resampling for bounds takes too long in ESs ({pr}462)

Documentation

  • Add QDHF tutorial ({pr}459)

Bugs

  • Fix solution retrieval in lunar lander eval ({pr}457)

0.7.0

To learn about this release, see our page on What's New in v0.7.0: https://docs.pyribs.org/en/stable/whats-new.html

Changelog

API

  • Support alternative centroid generation methods in CVTArchive ({pr}417, {pr}437)
  • Add PyCMAEvolutionStrategy for using pycma in ES emitters ({pr}434)
  • Backwards-incompatible: Add ranking values to evolution strategy tell method ({pr}438)
  • Backwards-incompatible: Move evolution strategy bounds to init ({pr}436)
  • Backwards-incompatible: Use seed instead of rng in ranker ({pr}432)
  • Backwards-incompatible: Replace status and value with add_info ({pr}430)
  • Support custom data fields in archive, emitters, and scheduler ({pr}421, {pr}429)
  • Backwards-incompatible: Remove _batch from parameter names ({pr}422, {pr}424, {pr}425, {pr}426, {pr}428)
  • Add Gaussian, IsoLine Operators and Refactor GaussianEmitter/IsoLineEmitter ({pr}418)
  • Backwards-incompatible: Remove metadata in favor of custom fields ({pr}420)
  • Add Base Operator Interface and Emitter Operator Retrieval ({pr}416)
  • Backwards-incompatible: Return occupied booleans in retrieve ({pr}414)
  • Backwards-incompatible: Deprecate as_pandas in favor of data(return_type="pandas") ({pr}408)
  • Backwards-incompatible: Replace ArchiveDataFrame batch methods with get_field ({pr}413)
  • Add field_list and data methods to archives ({pr}412)
  • Include threshold in archive.best_elite ({pr}409)
  • Backwards-incompatible: Replace Elite and EliteBatch with dicts ({pr}397)
  • Backwards-incompatible: Rename measure_* columns to measures_* in as_pandas ({pr}396)
  • Add ArrayStore data structure ({pr}395, {pr}398, {pr}400, {pr}402, {pr}403, {pr}404, {pr}406, {pr}407, {pr}411)
  • Add GradientOperatorEmitter to support OMG-MEGA and OG-MAP-Elites ({pr}348)

Improvements

  • Raise error when threshold_min is set but learning_rate is not ({pr}453)
  • Fix interval_size in CVTArchive and SlidingBoundariesArchive ({pr}452)
  • Allow overriding ES in sphere example ({pr}439)
  • Use NumPy SeedSequence in emitters ({pr}431, {pr}440)
  • Use numbers types when checking arguments ({pr}419)
  • Reimplement ArchiveBase using ArrayStore ({pr}399)
  • Use chunk computation in CVT brute force calculation to reduce memory usage ({pr}394)
  • Test pyribs installation in tutorials ({pr}384)
  • Add cron job for testing installation ({pr}389, {pr}401)
  • Fix broken cross-refs in docs ({pr}393)

Documentation

  • Tidy up LSI MNIST notebook ({pr}444)

0.6.4

Small release that adds the scalable CMA-MAE tutorial.

Changelog

Documentation

  • Add tutorial on scalable CMA-MAE variants ({pr}433, {pr}443)

0.6.3

Small patch release due to deprecation issues.

Changelog

Improvements

  • Replace np.product with np.prod due to deprecation ({pr}385)

0.6.2

Small patch release due to installation issues in our tutorials.

Changelog

API

  • Import ribs[visualize] in tutorials that need it ({pr}379)

Improvements

  • Switch to a branch-based release model ({pr}382)

0.6.1

(This release was removed)

0.6.0

Changelog

API

  • Drop Python 3.7 support and upgrade dependencies ({pr}350)
  • Add visualization of QDax repertoires ({pr}353)
  • Improve cvt_archive_heatmap flexibility ({pr}354)
  • Clip Voronoi regions in cvt_archive_heatmap ({pr}356)
  • Backwards-incompatible: Allow using kwargs for colorbar in parallel_axes_plot ({pr}358)
    • Removes cbar_orientaton and cbar_pad args for parallel_axes_plot
  • Add rasterized arg for heatmaps ({pr}359)
  • Support 1D cvt_archive_heatmap ({pr}362)
  • Add 3D plots for CVTArchive ({pr}371)
  • Add visualization of 3D QDax repertoires ({pr}373)
  • Enable plotting custom data in visualizations ({pr}374)

Documentation

  • Use dask instead of multiprocessing for lunar lander tutorial ({pr}346)
  • pip install swig before gymnasium[box2d] in lunar lander tutorial ({pr}346)
  • Fix lunar lander dependency issues ({pr}366, {pr}367)
  • Simplify DQD tutorial imports ({pr}369)
  • Improve visualization docs examples ({pr}372)

Improvements

  • Improve developer workflow with pre-commit ({pr}351, {pr}363)
  • Speed up 2D cvt_archive_heatmap by order of magnitude ({pr}355)
  • Refactor visualize module into multiple files ({pr}357)
  • Refactor visualize tests into multiple files ({pr}370)
  • Add GitHub link roles in documentation ({pr}361)
  • Refactor argument validation utilities ({pr}365)
  • Use Conda envs in all CI jobs ({pr}368)
  • Split tutorial CI into multiple jobs ({pr}375)

0.5.2

This release contains miscellaneous edits to our documentation from v0.5.1. Furthermore, the library is updated to support Python 3.11, removed deprecated options, and strengthened with more robust checks and error messages in the schedulers.

Changelog

API

  • Support Python 3.11 ({pr}342)
  • Check that emitters passed in are lists/iterables in scheduler ({pr}341)
  • Fix Matplotlib get_cmap deprecation ({pr}340)
  • Backwards-incompatible: Default plot_centroids to False when plotting ({pr}339)
  • Raise error messages when ask is called without ask_dqd ({pr}338)

Documentation

  • Add BibTex citation for GECCO 2023 ({pr}337)

Improvements

  • Update distribution dependencies ({pr}344)

0.5.1

This release contains miscellaneous edits to our documentation from v0.5.0. There were no changes to library functionality in this release.

0.5.0

To learn about this release, see our page on What's New in v0.5.0: https://docs.pyribs.org/en/stable/whats-new.html

Changelog

API

  • Schedulers warn if no solutions are inserted into archive ({pr}320)
  • Implement BanditScheduler ({pr}299)
  • Backwards-incompatible: Implement Scalable CMA-ES Optimizers ({pr}274, {pr}288)
  • Make ribs.emitters.opt public ({pr}281)
  • Add normalized QD score to ArchiveStats ({pr}276)
  • Backwards-incompatible: Make ArchiveStats a dataclass ({pr}275)
  • Backwards-incompatible: Add shape checks to tell() and tell_dqd() methods ({pr}269)
  • Add method for computing CQD score in archives ({pr}252)
  • Backwards-incompatible: Deprecate positional arguments in constructors ({pr}261)
  • Backwards-incompatible: Allow custom initialization in Gaussian and IsoLine emitters ({pr}259, {pr}265)
  • Implement CMA-MAE archive thresholds ({pr}256, {pr}260, {pr}314)
    • Revive the old implementation of add_single removed in ({pr}221)
    • Add separate tests for add_single and add with single solution
  • Fix all examples and tutorials ({pr}253)
  • Add restart timer to EvolutionStrategyEmitter and GradientArborescenceEmitter({pr}255)
  • Rename fields and update documentation ({pr}249, {pr}250)
    • Backwards-incompatible: rename Optimizer to Scheduler
    • Backwards-incompatible: rename objective_value to objective
    • Backwards-incompatible: rename behavior_value/bcs to measures
    • Backwards-incompatible: behavior_dim in archives is now measure_dim
    • Rename n_solutions to batch_size in Scheduler.
  • Add GradientArborescenceEmitter, which is used to implement CMA-MEGA ({pr}240, {pr}263, {pr}264, {pr}282, {pr}321)
  • Update emitter tell() docstrings to no longer say "Inserts entries into archive" ({pr}247)
  • Expose emitter.restarts as a property ({pr}248)
  • Specify that x0 is 1D for all emitters ({pr}244)
  • Add best_elite property for archives ({pr}237)
  • Rename methods in ArchiveDataFrame and rename as_pandas behavior columns ({pr}236)
  • Re-run CVTArchive benchmarks and update CVTArchive ({pr}235, {pr}329)
    • Backwards-incompatible: use_kd_tree now defaults to True since the k-D tree is always faster than brute force in benchmarks.
  • Allow adding solutions one at a time in optimizer ({pr}233)
  • Minimize numba usage ({pr}232)
  • Backwards-incompatible: Implement batch addition in archives ({pr}221, {pr}242)
    • add now adds a batch of solutions to the archive
    • add_single adds a single solution
  • emitter.tell now takes in status_batch and value_batch ({pr}227)
  • Make epsilon configurable in archives ({pr}226)
  • Backwards-incompatible: Remove ribs.factory ({pr}225, {pr}228)
  • Backwards-incompatible: Replaced ImprovementEmitter, RandomDirectionEmitter, and OptimizingEmitter with EvolutionStrategyEmitter ({pr}220, {pr}223, {pr}278)
  • Raise ValueError for incorrect array shapes in archive methods ({pr}219)
  • Introduced the Ranker object, which is responsible for ranking the solutions based on different objectives ({pr}209, {pr}222, {pr}245)
  • Add index_of_single method for getting index of measures for one solution ({pr}214)
  • Backwards-incompatible: Replace elite_with_behavior with retrieve and retrieve_single in archives ({pr}213, {pr}215, {pr}295)
  • Backwards-incompatible: Replace get_index with batched index_of method in archives ({pr}208)
    • Also added grid_to_int_index and int_to_grid_index methods for GridArchive and SlidingBoundariesArchive
  • Backwards-incompatible: Made it such that each archive is initialized fully in its constructor instead of needing a separate .initialize(solution_dim) call ({pr}200)
  • Backwards-incompatible: Add sigma, sigma0 options to gaussian_emitter and iso_line_emitter ({pr}199)
    • gaussian_emitter constructor requires sigma; sigma0 is optional.
    • iso_line_emitter constructor takes in optional parameter sigma0.
  • Backwards-incompatible: Add cbar, aspect options for cvt_archive_heatmap ({pr}197)
  • Backwards-incompatible: Add aspect option to grid_archive_heatmap + support for 1D heatmaps ({pr}196)
    • square option no longer works
  • Backwards-incompatible: Add cbar option to grid_archive_heatmap ({pr}193)
  • Backwards-incompatible: Replace get_random_elite() with batched sample_elites() method ({pr}192)
  • Backwards-incompatible: Add EliteBatch and rename fields in Elite ({pr}191)
  • Backwards-incompatible: Rename bins to cells for consistency with literature ({pr}189)
    • Archive constructors now take in cells argument instead of bins
    • Archive now have a cells property rather than a bins property
  • Backwards-incompatible: Only use integer indices in archives ({pr}185)
    • ArchiveBase
      • Replaced storage_dims (tuple of int) with storage_dim (int)
      • _occupied_indices is now a fixed-size array with _num_occupied indicating its current usage, and _occupied_indices_cols has been removed
      • index_of must now return an integer

Bugs

  • Fix boundary lines in sliding boundaries archive heatmap ({pr}271)
  • Fix negative eigenvalue in CMA-ES covariance matrix ({pr}285)

Documentation

  • Speed up lunar lander tutorial ({pr}319)
  • Add DQDTutorial ({pr}267)
  • Remove examples extra in favor of individual example deps ({pr}306)
  • Facilitate linking to latest version of documentation ({pr}300)
  • Update lunar lander tutorial with v0.5.0 features ({pr}292)
  • Improve tutorial and example overviews ({pr}291)
  • Move tutorials out of examples folder ({pr}290)
  • Update lunar lander to use Gymnasium ({pr}289)
  • Add CMA-MAE tutorial ({pr}273, {pr}284)
  • Update README ({pr}279)
  • Add sphinx-codeautolink to docs ({pr}206, {pr}280)
  • Fix documentation rendering issues on ReadTheDocs ({pr}205)
  • Fix typos and formatting in docstrings of ribs/visualize.py ({pr}203)
  • Add in-comment type hint rich linking ({pr}204)
  • Upgrade Sphinx dependencies ({pr}202)

Improvements

  • Move threadpoolctl from optimizer to CMA-ES ({pr}241)
  • Remove unnecessary emitter benchmarks ({pr}231)
  • Build docs during CI/CD workflow ({pr}211)
  • Drop Python 3.6 and add Python 3.10 support ({pr}181)
  • Add procedure for updating changelog ({pr}182)
  • Add 'visualize' extra ({pr}183, {pr}184, {pr}302)

0.4.0 (2021-07-19)

To learn about this release, see our blog post: https://pyribs.org/blog/0-4-0

Changelog

API

  • Add ribs.visualize.parallel_axes_plot for analyzing archives with high-dimensional BCs ({pr}92)
  • Backwards-incompatible: Reduce attributes and parameters in EmitterBase to make it easier to extend ({pr}101)
  • In Optimizer, support emitters that return any number of solutions in ask() ({pr}101)
  • Backwards-incompatible: Store metadata in archives as described in {pr}87 ({pr}103, {pr}114, {pr}115, {pr}119)
  • Backwards-incompatible: Rename "index" to "index_0" in CVTArchive.as_pandas for API consistency ({pr}113)
  • Backwards-incompatible: Make index_of() public in archives to emphasize each index's meaning ({pr}128)
  • Backwards-incompatible: Add index to get_random_elite() and elite_with_behavior() in archives ({pr}129)
  • Add clear() method to archive ({pr}140, {pr}146)
  • Represent archive elites with an Elite namedtuple ({pr}142)
  • Add len and iter methods to archives ({pr}151, {pr}152)
  • Add statistics to archives ({pr}100, {pr}157)
  • Improve manipulation of elites by modifying as_pandas ({pr}123, {pr}149, {pr}153, {pr}158, {pr}168)
  • Add checks for optimizer array and list shapes ({pr}166)

Documentation

  • Add bibtex citations for tutorials ({pr}122)
  • Remove network training from Fooling MNIST tutorial ({pr}161)
  • Fix video display for lunar lander in Colab ({pr}163)
  • Fix Colab links in stable docs ({pr}164)

Improvements

  • Add support for Python 3.9 ({pr}84)
  • Test with pinned versions ({pr}110)
  • Increase minimum required versions for scipy and numba ({pr}110)
  • Refactor as_pandas tests ({pr}114)
  • Expand CI/CD to test examples and tutorials ({pr}117)
  • Tidy up existing tests ({pr}120, {pr}127)
  • Fix vocab in various areas ({pr}138)
  • Fix dependency issues in tests ({pr}139)
  • Remove tox from CI ({pr}143)
  • Replace "entry" with "elite" in tests ({pr}144)
  • Use new archive API in ribs.visualize implementation ({pr}155)

0.3.1 (2021-03-05)

This release features various bug fixes and improvements. In particular, we have added tests for SlidingBoundariesArchive and believe it is ready for more rigorous use.

Changelog

  • Move SlidingBoundariesArchive out of experimental by adding tests and fixing bugs ({pr}93)
  • Added nicer figures to the Sphere example with grid_archive_heatmap ({pr}86)
  • Added testing for Windows and MacOS ({pr}83)
  • Fixed package metadata e.g. description

0.3.0 (2021-02-05)

pyribs is now in beta. Since our alpha release (0.2.0), we have polished the library and added new tutorials and examples to our documentation.

Changelog

  • Added a Lunar Lander example that extends the lunar lander tutorial ({pr}70)
  • Added New Tutorial: Illuminating the Latent Space of an MNIST GAN ({pr}78)
  • GridArchive: Added a boundaries attribute with the upper and lower bounds of each dimension's bins ({pr}76)
  • Fixed a bug where CMA-ME emitters do not work with float32 archives ({pr}74)
  • Fixed a bug where Optimizer is able to take in non-unique emitter instances ({pr}75)
  • Fixed a bug where GridArchive failed for float32 due to a small epsilon ({pr}81)
  • Fix issues with bounds in the SlidingBoundaryArchive ({pr}77)
  • Added clearer error messages for archives ({pr}82)
  • Modified the Python requirements to allow any version above 3.6.0 ({pr}68)
  • The wheel is now fixed so that it only supports py3 rather than py2 and py3 ({pr}68)
  • Miscellaneous documentation fixes ({pr}71)

0.2.0 (2021-01-29)

  • Alpha release

0.2.1 (2021-01-29)

  • Package metadata fixes (author, email, url)
  • Miscellaneous documentation improvements

0.1.1 (2021-01-29)

  • Test release (now removed)

0.1.0 (2020-09-11)

  • Test release (now removed)

0.0.0 (2020-09-11)

  • pyribs begins