Classification algorithms {production system} can use IF/THEN rules on input to conditionally branch to one feature or object. Production systems have three parts: fact database, production rule, and rule-choosing control algorithm.
database
Fact-database entries code for one state {local representation, database}, allowing memory.
rules
Production rules have form "IF State A, THEN Process N". Rules with same IF clause have one precedence order.
controller
Controller checks all rules, performing steps in sequence {serial processing}. For example, if system is in State A and rule starts "IF State A", then controller performs Process N, which uses fact-database data.
states
Discrete systems have state spaces whose axes represent parameters, with possible values. System starts with initial-state parameter settings and moves from state to state, along a trajectory, as controller applies rules.
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Date Modified: 2022.0224