The Research And Realization Of Chinese Natural Language Pragmatics In Product Design Field

Natural Language Understanding (NLU) is applied to the product design. Through understanding and analyzing the user's needs expressed in the form of natural language and transforming analysis result concept designing requirement ,subsequent design is supported.First of all, according to the characteristic of the NLU in the designing field, the method based on knowledge should be adopted in the NLU applied to product design. Secondly, introduce several kinds of knowledge express methods, and compare their advantages and disadvantages, determine the frame express method as the main express method and set up an ontology model of pragmatics knowledge. Thirdly, according to comparing their characteristics, discuss the sociality pragmatics and cognize pragmatics, put the association theory as the main pragmatics, then expatiate how to express knowledge in a given field and how to find the best association in this model. Fourthly, according to the theory, set up a model of pragmatics and discuss the functions of every module, then discuss the step to achieve this model. Finally, a prototype system of computer aided mechanical product analysis was built, which was applied to the analysis of requirements of mechanical transimission device, and runs well after debug.