Chinese parsing has played such an important role in NLU, and has been a bridgejoining word segmentation with semantic analysis. At first, some parsing methods thatexist are compared and summarized. Basing on the research theory that thepredecessors have obtained on parsing, a new technique rule-based andstatistics-consulted is adopted. This paper discusses the characteristics, principles and methods of NaturalLanguage Understanding (NLU) parsing, and presents the whole parsing process ofmodern Chinese, which includes part-of-speech tagging, chunk parsing, eventhandling, signal adding and so on. The difficulty of parsing based on the field ofmechanical design lies in ambiguity solving and chunk parsing, which are researchedin special chapters. At last, the application of NLU parsing in mechanical design domain is studied.By understanding and analyzing the user requirements in natural language style andhanding the results on the NLU semantic analysis and context analysis to go ondisposing, the consumer demands, finally, are transformed into the requirements ofconceptual design the product design is supported.
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