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AI Lecture 7
Decision Trees
9
Anatomy
2nd Grade
11/11/2009

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Cards

Term
What is an attribute test node?
Definition
An attribute is a feature of an example. In action decisions, the attribute values are the world state.
Term
What is a classification of a test node?
Definition
A classification of an example is its final category. In action decisions, the classification is the action to take.
Term
What are the cases where a decision tree fails to correctly classify data?
Definition
Term
Identify an example's classification
Definition
Term
What is the difference between an attribute and an attribute values?
Definition
Attribute - texture
Attribute value - slimy, soft
Term
What is entropy and how does it work?
Definition
the measure of discord/how messed up (heterogeneity) among a group of elements. By reducing entropy (increasing homogeneity), we reduce the number of times a bucket must be split, resulting in a more shallow tree.
Term
**What is the difference between entropy and average entropy?
Definition
Term
How do you derive information from an existing decision tree?
Definition
Term
Build a decision tree from a set of data
Definition
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