Learning by Building Identification Trees - created from Mind Map

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Identification Tree

Disorder formula

From Trees to rules

a special kind of decision tree to represent property-testing procedures

one way to recognize situation by applying the sequence of tests dictated by identification tree

Occam's razor

Sprouter

one way to learn by building an identification tree, keeping it simple in harmony with Occam's razor

the smallest identification tree that is consistent with the samples is the one that is most likely to identify unknown object

procedure to generate an identification tree until each leaf node is populated by as homogeneous a sample set

One way to build a simple identification tree by using a disorder formula, borrowed from information theory, to determine which tests to include in the tree

Average disorder

Contingency Table

Default rule

Once an identification tree is built, you usually should convert it into a simple set of rules so as to make the knowledge embedded in it more comprehensible. To do the conversion, you make a rule for each path through the tree, and then you simplify the resulting set of rules. To simplify a set of rules, you first eliminate unnecessary rule antecedents using Fisher's exact test. Then, you eliminate unnecessary rules.

Table that shows the degree to which a result is contingent on a property

Rule that is to be used only if no other rule applies