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W-Logistic and EqualLabelWeighting

UsernameUsername Member Posts: 39  Guru
edited November 2018 in Help
Hi,

the W-Logistic operator throws an exception: "sum of weight of instances less than 1". I'm using the EqualLabelWeighting operator for assigning weights to examples. Shouldn't the summed up weights of all exampes be 1?

Thanks

Answers

  • TobiasMalbrechtTobiasMalbrecht Moderator, Employee, Member Posts: 291  RM Product Management
    Hi,

    yes, in principal the weights created by the [tt]EqualLabelWeighting[/tt] operator should sum to 1 with the default parameter values. Did you check if the error occurs also when you set the [tt]total_weight[/tt] parameter to value greater than 1? Perhaps the weights do not sum exactly to 1 because of rounding errors?

    Regards,
    Tobias
  • UsernameUsername Member Posts: 39  Guru
    Tobias Malbrecht wrote:

    Hi,

    yes, in principal the weights created by the [tt]EqualLabelWeighting[/tt] operator should sum to 1 with the default parameter values. Did you check if the error occurs also when you set the [tt]total_weight[/tt] parameter to value greater than 1? Perhaps the weights do not sum exactly to 1 because of rounding errors?

    Regards,
    Tobias
    I triedΒ  [tt]total_weight = 2[/tt] without any problems. I guess you're right with the rounding errors.
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