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JMySVMLearner - bias calculation

ilaria_goriilaria_gori Member Posts: 15  Maven
Please could you help me to understand how the bias (offset) is calculated in the case of classification of 2D vectors with JMySVMLearner?
The vector w is clearly calculated as linear combination of the training vectors (coefficients equal to the Lagrange multipliers times the target), but bias =?
thanks!!

ilaria

Answers

  • landland RapidMiner Certified Analyst, RapidMiner Certified Expert, Member Posts: 2,531   Unicorn
    Hi,
    I suggest, you should take a look in the literature about the JMySVM. Probably it is mentioned somewhere. You could start searching here:

    T. Joachims, Making large-scale support vector machine learning
    practical, Advances in Kernel Methods: Support Vector Machines,
    MIT Press, Cambridge, MA, 1998.

    Greetings,
    Β  Sebastian
  • ilaria_goriilaria_gori Member Posts: 15  Maven
    thank you, I found it!

    ilaria
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