Gradient boosting weights

User: "k_vishnu772"
New Altair Community Member
Updated by Jocelyn
Hi all,
I ran the model with gradient boosting algorithm in rapid miner and I have seen the weights generated for each input parameter and some of them have zero weight does that mean that those are eliminated from the model.does that mean it feature selects the parameters with positive weight?
Could you please help me in this.

Regards
Vishnu

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    User: "MartinLiebig"
    Altair Employee
    Accepted Answer

    Hi,

     

    yes and yes, i would call it feature selection. I often use this (or the weights of an RF) for feature selection. Just use a Select by Weights operator afterwards.

     

    Best,

    Martin