Level of the Model

Level of the Model

Before starting doing something, it is good idea to decide exactly what one is trying to do. One should ask following questions for self analysis :-

• What is the goal in trying to produce programs that do the tasks the same people do?

• Are we trying to produce programs that do the tasks the same way people do? Or are we trying to produce programs that simply do the tasks in whatever way appears easiest?

Efforts to build program that perform tasks the way people do can be divided into two classes. The first one are those that attempt to solve problems that do not really fit our definition of AI. i.e. problems that computer could easily solve. The second class attempt to model human performance are those that do things that fall more clearly within our definition of AI tasks; they do things that are not trivial for the computer.

Reasons for modeling human performance for these kind of tasks:-

• To test psychological theories of human performance. e.g. PARRY program written for this reason, which exploited a model of human paranoid behaviour to simulate the conversational behaviour of a paranoid person.

• To enable computer to understand human reasoning. For example, for a computer or to be able to read a news paper story and then answer question, such as "Why I did Ravana lose the game?"

• To enable people to understand computer reasoning. In many cases people are ems reluctant to rely on the output of computer unless they can understand how the machine arrived at its result.

• To exploit what knowledge we can collect from people.

• To ask for assistance from best performing people and ask them how to proceed in dealing with their tasks.