4829426 Computer-implemented expert system and method for decision-making

4829426 Computer-implemented expert system and method for decision-making

New Patents VII for air traffic controller training. The expert system receives input data representing the altitude and heading of all aircraft in ...

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New Patents

VII

for air traffic controller training. The expert system receives input data representing the altitude and heading of all aircraft in the control area. The aircraft data is compared with the data of the other aircraft. Sequencing and local flow control is optimized and if a potential conflict arises between two aircraft, clearances are transmitted to the aircraft to resolve the conflict. The aircraft data is also compared with a knowledge base of air traffic control rules for the particular airport involved. An inference engine written in LISP (or another AI language) allows real time access to the knowledge base. The position and heading of each aircraft is monitored and controlled until turned over to the tower for final approach. The expert system may also be used for air traffic controller training and be used as a intelligent tutor. The air traffic controller trainec's clearances are input and compared to those generated by the system. If the trainec's clearances are in error, or can be improved, the expert system prompts the trainee and coaches him in a way so that he learns from his past errors.

4829423 MENU-BASED NATURAL LANGUAGE UNDERSTANDING SYSTEM Harry Tennant, Kenneth Ross, Richard Saenz assigned to Texas Instruments Incorporated

A nii~tural language interface for a computer system restricts inputs from a user to those which generate valid input sentences. The user selects a next input word from a menu showing which words are valid. When an input is selected, a parser uses a predefined grammar to determine which words are valid continuations after the selected word, and whether a complete sentence has been entered. Valid next words are presented to the user in menu form so that a next selection can be made. If an ambiguous complete sentence is entered, the interface allows the user to select the desired meaning therefor. The grammer can be context free grammar, and can use an associated lexicon to define elements therein.

4829426 COMPUTER-IMPLEMENTED EXPERT SYSTEM AND METHOD FOR DECISION-MAKING F Burt assigned to Cogensys Corporation This invention relates to an expert system and method for decision making using computer generated paramorphic models of an expert's decisional process.

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