February 17, 2021

pSeven 6.19 Release

DATADVANCE development team announces the release of pSeven 6.19, a new version of our flagship platform for data analysis and optimization.

New Features

  • Added a more convenient way to set up leave-n-out cross validation in ApproxBuilder and the Model builder in Analyze in the manual configuration mode. Use the GTApprox/IVSubsetSize option to set n — for example, to perform leave-one-out cross-validation. Use the updated GTApprox/IVTrainingCount option to limit the number of model retraining sessions. See option descriptions for full details.

Updates and Changes

  • Design space exploration block:
    • Improved uniformity and variability of DoE generated by the Adaptive design technique in the uniform distribution mode (no adaptive responses) and in certain tasks with discrete variables.
  • Predictive modeling:
    • The GBRT technique now handles NaN values of variables in the training sample in a specific way. If you set the GTApprox/InputNanMode option, it keeps points where some (but not all) variables are NaN and actually uses them in training. 

pSeven 6.19 also includes bugfixes – please see the release changelog for a full list. You can also contact us to get more information and pSeven updates.

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