The Analysis Of Concept Distinction In Domain-Specific NLP And Its Application In Artificial Intelligence Instrument Design

The application of NLU technology in the process of products design is one of the most important and difficult application of A.I.technology.This paper studies the conceptual entity distinction of NLU and applies it in the requirements analysis of artificial intelligence instrument.Through analyzing and understanding the clients'requirements which are expressed in the form of natural language, we transform the results into the design requirements ,thus obtain good effects.A lot of relevant documentations are reviewed and then the main elements of concept distinctions and difficulties are determined.After introducing several theories and methods of NLU knowledge expression and their advantages and disadvantages,a new knowledge representation method is given, which bases on concept dependency theory and uses the framework structure as its forms and reflects the relationship between the concepts.Then the paper studies the concept classification in linguistic phenomena,and introduces the relationships especially the part-whole relationship and the hyponymy relationship. In the semantic analysis of concept distinctions,the separability of concept as well as the concept distinction types and dispoal method are also introduced in details .Conceptual entities are distinguished by means of constraints or status of the entities. In the implementation of noun-concept distinction, the whole framework is introduced first. Then the concept distinction is achieved from the static and dynamic approaches and the related questions are also discussed.At last, the concept distinction is applied in the requirements analysis of artificial intelligence instrument expert system which has man-machine interface. Meanwhile, an illustration of the concept distinction in the application of intelligent instrument design is made.The concept distinction of NLU is kind of discourse analysis to some extend.So far, discourse analysis is just in the primary stage.In the future,human will put more and more emphasis on the study of discourse analysis in the NLU.