Intelligent Systems And Their Societies Walter Fritz

Sleeping (Reviewing Experiences)


The Need
We can observe the need for humans to sleep after a day that has been full of new experiences. The mind is confused and usually does not clearly see the relationships between all that has happened. After a night's sleep, the situation becomes much clearer.

Artificial ISs, also need to sleep. Some of its review processes take a considerable amount of time. As the external activities of an IS would be hindered if long internal processing continuously interrupted them, artificial ISs usually do substantive processing activities when no demands exist for external activity.


The Activities
Like many others, you might be wondering: What exactly are these internal activities that go on during sleep? Normally, this would not be an easy question to answer. Luckily, however, we can begin to find our answers by observing the processes that go on within artificial ISs. From this we can then deduce that other processes, similar in function, must also occur during human sleep.

The answer is actually quite simple. It is very important that an IS has at least a few rules in its memory that are applicable to any given situation. But an IS can only learn specific rules from its specific experiences -- these rules are not generally applicable. So, during sleep, an IS generalizes concepts (by creating abstract and total concepts) and with these concepts creates generalized response rules. It is thus better prepared as these generalized rules are then applicable to many similar situations.

How the human brain does its own version of this generalization process is not well known. The investigation of artificial neural nets has been able to provide us with some insight into how a natural neural net (a common structure that is currently used as a human brain model) may function. On the other hand, just how an artificial IS can do this can be seen within the Storing and Generalizing and Forgetting (For continuous reading, like a book - do not enter here now) topics that can be found within our section on Artificial Intelligent Systems. (For continuous reading, like a book - do not enter here now)
See also the section on "sleeping" in Preliminary Remarks on the Theory of Intelligent Systems (For continuous reading, like a book - do not enter here now)

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Last Edited 24 July 2013 / Walter Fritz
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