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What exactly is 'Decision Tree (Multiway)? What is its advantage?

CuriousCurious Member Posts: 12 Newbie
If you can explain in simple words (beyond what is in the glossary). Thank you!

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    varunm1varunm1 Moderator, Member Posts: 1,207 Unicorn
    Hi @Curious

    As @SGolbert explained they will have multiple splits for numerical attributes, but the advantages are minimal. One major advantage is the rate of information retrieval (fast) and updating the tree.


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    Telcontar120Telcontar120 Moderator, RapidMiner Certified Analyst, RapidMiner Certified Expert, Member Posts: 1,635 Unicorn
    It also leads to shorter trees, all else being equal, since multiple splits can occur at the same node if the attribute it numerical, rather than requiring every distinct split to be only 2-way.  This can be a consideration in some implementations or with respect to a growth limit on the overall depth of the tree.
    Brian T.
    Lindon Ventures 
    Data Science Consulting from Certified RapidMiner Experts
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    SGolbertSGolbert RapidMiner Certified Analyst, Member Posts: 344 Unicorn
    But in the end, the normal tree can be optimized regarding spread and deep. Also, I don't trust the implementation completely, it requires a decision tree at a subprocess, very strange. Better to stick to the normal, more tested one.
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