3 years ago

presentation slides - INFORMS NY

presentation slides - INFORMS NY

Drawbacks of Trees.

Drawbacks of Trees. Unstable: small perturbations in data can lead tobig changes in trees.. Linear structures are approximated in very roughform.. Applications may require thatrules descriptions fordifferent categories notshare the same attributes.. It is a conditionalStructure and interpretation many timesmisunderstands the conditioning effect.— 20 —

Drawbacks of Trees (cont.). Tends to over-fit => overly optimistic accuracy.. Large trees are very difficult to interpret.. Tree size conditioned by data set size.. No valid inferentialprocedures at present(if it matters).. Greedy searchalgorithm.— 21 —

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