Probability of prediction column in a binary classification problem.

SA_HSA_H MemberPosts:29Contributor II
edited October 2019 inHelp
Using the (apply model operator) in the binary classification problem, the results exported in the form of the prediction column and confidences of being 0 or 1. Please I am wondering if there is an operator that can export the probability (range from 0-1 such as 0, 0.1, 0.2, ...) or scores indicating the likelihood that a label comes from a particular class (0 or 1).
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Answers

  • varunm1varunm1 Moderator, MemberPosts:1,207Unicorn
    Hello@summer_helmi

    Sorry, I am confused can you please explain in detail. The prediction confidences are similar to probabilities, that shows the confidences of a particular class for a particular observation between 0 and 1. If the algorithm is really confident then it will assign 1 to related label (class).


    Regards,
    Varun
    https://www.varunmandalapu.com/

    Be Safe. Follow precautions and Maintain Social Distancing

    MartinLiebig
  • MartinLiebigMartinLiebig Administrator, Moderator, Employee, RapidMiner Certified Analyst, RapidMiner Certified Expert, University ProfessorPosts:3,404RM Data Scientist
    Hi,
    confidences are not probabilities, but correlated. To get something way closer to propabilities we recommend to use Rescale Confidences (Logistic), which uses Platt Scaling.
    Best,
    Martin
    - Sr. Director Data Solutions, Altair RapidMiner -
    Dortmund, Germany
    varunm1 SA_H Tghadially
  • SA_HSA_H MemberPosts:29Contributor II
    edited October 2019
    Thank you,
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