Preconditioning the Network
Ill-Conditioning
In the preceding section on overfitting, we have seen what can happen when the network learns a given set of data too well.
precondition a fact or set of facts that must be true before an action can be taken; e.g., before a robot can pick up an object, its hand must be empty.
preconditions (what must be established before the action is performed);
postconditions (what is established after the action is performed).
Mathematically, a STRIPS instance is a quadruple , in which each component has the following meaning: ...
To check the preconditions of each action as it is executed, rather than checking the preconditions of the entire remaining plan. This is called action monitoring.
Each operator may be executed only in some particular set of world states (its preconditions), and has some particular set of effects on its world state (its effects).
Despite the role of anomaly as a stimulus (and logical precondition) for creativity, however, it is hardly a reliable method, as countless noncreative (and unsuccessful) encounters with anomalies must testify.
everal mechanisms and preconditions are necessary for systems to self-organize (Nicolis and Prigogine 1989, Forrest and Jones 1995).
A more general form is: If (Preconditions) THEN consequents.
(Equation 1.6)
An example of such a rule can be:
IF temperature is high AND weather is cool THEN window_opening is much.
In philosophy and AI, the qualification problem is concerned with the impossibility of listing all the preconditions required for a real-world action to have its intended effect. ...
The frame-system can have slots for agents, tools, side-effects, preconditions, generalized trajectories, just as in the "trans" verbs of "case grammar" theories, but we have the additional flexibility of representing changes explicitly.
Once a problem is solved, the learning component takes the computed plan and stores it as a macro-operator. The preconditions are the initial conditions of the problem just solved, and its post conditions correspond to the goal just achieved.
For example, when multiplying two rational numbers a/b and c/d, the result is defined as ac/bd. Typically, inputs, outputs, preconditions, postconditions, and assumptions to the ADT are specified as well.
 See also: Artificial intelligence, Knowledge, Planning, Agent, Problem solving
  
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