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H2O v3.18.0.5 Release Notes

  • 🚀 Download at: http://h2o-release.s3.amazonaws.com/h2o/rel-wolpert/5/index.html

    Bug

    [PUBDEV-4933] - AutoML no longer trains a Stacked Ensemble with only one model. [PUBDEV-5028] - GBM and GLM grids no longer fail in AutoML for multinomial problems. 🔀 [PUBDEV-5266] - Users can now merge/sort frames that contain string columns. 🛠 [PUBDEV-5303] - Fixed an issue that occured with multinomial GLM POJO/MOJO models. [PUBDEV-5334] - Users can no longer specify a value of 0 for the col_sample_rate_change_per_level parameter. The value for this parameter must be greater than 0 and <= 2.0. [PUBDEV-5336] - The H2O-3 Python client no longer returns an incorrect answer when running a conditional statement. 👍 [PUBDEV-5365] - Added support for CDH 5.14. 🛠 [PUBDEV-5366] - Fixed an issue that caused XGBoost to fail when running the airlines dataset on a single-node H2O cluster. 📜 [PUBDEV-5370] - The H2O-3 parser can now handle utf-8 characters that appear in the header. 🐧 [PUBDEV-5394] - The H2O-3 parser no longer treats the "Ctr-M" character as an end of line on Linux. ⚠ [PUBDEV-5414] - H2O no longer generates a warning when predicting without a weights column.

    New Feature

    🖨 [PUBDEV-5402] - The AutoML leaderboard no longer prints NaNs for non-US locales.

    Task

    [PUBDEV-5235] - Added a demo of XGBoost in Flow. [PUBDEV-5386] - Improved the ordinal regression parameter optimization by changing the implementation.

    Improvement

    [PUBDEV-3978] - In Flow, improved the vertical scrolling for training and validation metrics for thresholds. 🌲 [PUBDEV-5364] - Added more logging regarding the WatchDog client. 👀 [PUBDEV-5383] - Replaced unknownCategoricalLevelsSeenPerColumn with ErrorConsumer events in POJO log messages. [PUBDEV-5400] - Improved the logic that triggers rebalance. [PUBDEV-5404] - AutoML now uses correct datatypes in the AutoML leaderboard TwoDimTable.

    📄 Docs

    [PUBDEV-5292] - Added beta constraints and prior entries to the Parameters Appendix, along with examples in R and Python. 👍 [PUBDEV-5369] - Added CDH 5.14 to the list of supported Hadoop platforms in the User Guide. [PUBDEV-5413] - Updated the documenation for the Ordinal family option in GLM based on the new implementation. Also added new solvers to the documenation: GRADIENT_DESCENT_LH and GRADIENT_DESCENT_SQERR. [PUBDEV-5416] - Added information about Extremely Randomized Trees (XRT) to the DRF chapter in the User Guide. 📚 [PUBDEV-5421] - On the H2O-3 and Sparkling Water download pages, the link to documentation site now points to the most updated version. [PUBDEV-5432] - The target_encode_create and target_encode_apply are now included in the R HTML documentation.

    Fault

    🛠 [PUBDEV-5367] - Fixed an issue that caused SQLManager import to break on cluster with over 100 nodes.