Compound Sentences Semantic Understanding Of Chinese Natural Language In Product Design

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 , according to the advantage of ontology ,the ontology model of semantic knowledge of natural language in the field was set up ,according to the reasonable thought of the theory of Case Grammar and Conceptual dependency, the dynamic semantic relation of the semantic knowledge ontology was established, and then, based on the ontology model of semantic knowledge , the semantic analysis model of natural language in the field was set up. Then, the ontology model of semantic knowledge and semantic analysis model was realized specifically, and the semanteme analytic process of the compound sentence in the field was introduced in detail. Moreover, according to the application-intention of the field, the NLU should be devided into top layer understanding and intention understanding, and based on the thought , the overall structure of auto modeling system of the NLU in the field was built, then the auto modeling system of NLU in the field of journey was realized. 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.