Generate Output Messages

If the classifier condition and the input message match at every position, or if all conditions in a multiple condition classifier are matched by some combination of input messages, the classifier is said to be satisfied by the message(s), the action part of the classifier is triggered and it generates an output message. 

Just like the condition, the classifier s action is formed from the ternary alphabet [o, l, ]. If it appears in the action, the symbol acts as a pass through operator wherever is present, it is replaced by the digit that occurs in the corresponding position in the input message. 

Output Messages Generated by a Small Group of Classifiers (see text) 

Input message. ..is matched by the classifier. ..and generates the output 

It is easy to see that multiaction classifiers could give rise to large numbers of output messages, so these are used sparingly. 

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Even for a small-scale problem, the classifier list may be long. This has the advantage that, since many classifiers may be able to generate output messages at one time, the system implicitly includes several different ways of responding to messages from the environment (in other words, it can incorporate several different hypotheses about how the environment behaves). This helps the CS to cope with uncertainty when there may be insufficient information on the input message list to determine precisely what state the environment is in. 

It receives input messages from its environment on its input channels and generates output messages to its environment on its output channels ... 

The in every case is the generation of a message, so the processing of the input messages leads to zero or more output messages being created. These are placed on an output message list. 

The order in which output messages are generated and placed on the output list is of no consequence, so the system can process information in parallel without worrying about whether one classifier should inspect the input list before another gets the chance. The number of messages posted to the output list is, in Example 1, equal to the number of classifiers, but in general the input and the output lists need not be equal in length either to each other or to the classifier list. 

This might suggest that a classifier that generates thousands of output messages is to be preferred over one that generates a more modest number, but we can see why this is unlikely to be true by considering the action of classifiers such as ... 

The condition part of these classifiers contains several symbols, so the classifiers will be satisfied by many input messages and, therefore, generate numerous output messages. 

AAC system outputs in common use are speech, displays, printers, beeps, data, infrared, and other control formats. Outputs are used to facilitate the interactive nature of real time communication. Users may rely on auditory and visual feedback to enhance vocabulary selection and the construction of messages. The speech and display outputs may be directed toward the communication partner to support the exchange of information. Auditory feedback such as beeps and key clicks, while useful to the individual using the system, also provide the communication partner with the pragmatic information that a user is in the process of generating a message. Finally, outputs may be used to control other items or devices such as printers. 

The reread of the output and the oecurrence of a restrictive state happen at the DESP level. The CSD merely generates safety messages. 

Thus, input message oom (interpreted as "the temperature is below Ttoo cou") would satisfy the classifier ooiii/oim. The classifier would output the message oim, which would be interpreted as "turn on the heater" (the oi part of the action) "to maximum power" (the m part). In this way, an input message that indicates a need for action has generated a suitable... 

Note that implementing F by a pseudo-random generator (stream-cipher) where K acts as the seed and whose output is Xored bit-by bit with the message satisfies this security requirement. 

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