Accession Number : ADA179276


Title :   UC - A Progress Report.


Descriptive Note : Technical rept.,


Corporate Author : CALIFORNIA UNIV BERKELEY DEPT OF ELECTRICAL ENGINEERING AND COMPUTER SCIENCES


Personal Author(s) : Wilensky,Robert ; Mayfield,James ; Albert,Anthony ; Cox,David N ; Cox,Charles


Full Text : http://www.dtic.mil/get-tr-doc/pdf?AD=ADA179276


Report Date : Jul 1986


Pagination or Media Count : 123


Abstract : UC is an intelligent natural language interface that allows naive user to learn about the UNIX operating system. UC was undertaken because the task was thought to be both a fertile domain for Artificial Intelligence research and a useful application of AI work in planning, reasoning, natural language processing and knowledge representation. The current implementation of UC comprises the following components: A language analyzer, called ALANA, that produces a representation of the content contained in an utterance; an inference component called a concretion mechanism that further refines this content; a goal analyzer, PAGAN, that hypothesizes the plans and goals under which the user is operating; an agent, called UCEgo, that decides on UC's goals and proposes plans for them; a domain planner, called UCPlanner, that computes a plan to address the user's request; an expression mechanism, UCExpress, that determines the content to be communicated to the user, and a language production mechanism, UCGen, that expresses UC's response in English. UC also builds a model of the user that represents UC's assessment of the user's knowledge state with respect to UNIX. Another mechanism, UCTeacher, allows a user to add knowledge of both English vocabulary and facts about UNIX to UC's knowledge base. This is done by interacting with the user in natural language.


Descriptors :   *INTERFACES , *NATURAL LANGUAGE , PRODUCTION , MODELS , PROCESSING , REASONING , PLANNING , LANGUAGE , ARTIFICIAL INTELLIGENCE , VOCABULARY , ANALYZERS , COMPUTER FILES , ENGLISH LANGUAGE


Subject Categories : Computer Programming and Software


Distribution Statement : APPROVED FOR PUBLIC RELEASE