Research On Urban Design Programming Method Based On Semantic Network

The research of urban design programming method based on Semantic network which is put forward after urban design programming theory is carried out as a kind of formal programming method in accordance with the professional characteristics and working features of programming for urban design.This method lies in constructing semantic network model for urban design issues,namely the semantic network programming method for urban design,and provides a formal operation platform for urban design programming.The purpose of this method focus on computer aided programming to perfect the system of urban design programming method as well as to make the study of urban design programming to a more rational and more scientific direction.This research introduces semantic network into the study of urban design programming method via multidisciplinary research method according to the characteristics and advantage of the semantic network itself and preliminary establishes the concept of urban semantic network and the system of urban design programming method.First of all,the thesis explains what is programming,urban design,urban design programming and Semantic network.And then,this thesis puts forward the concept of urban semantic network and explains what is urban design programming method based on Semantic network.Urban semantic network is a kind of semantic network model for urban design programming.The overview of urban semantic network introduces not only the meaning,key elements,characteristics and structure of this specific formal models but also the form logic and reasoning mechanism of the urban semantic network used as the logic security for programming and reasoning.In order to make the semantic network programming methods have a certain extensionality,the thesis discusses ontology system and language system of urban semantic network.This research builds the channels between urban semantic network and artificial intelligence,computer ontology through structure connectivity.It also builds the channels between the meta language,mathematical language and natural language through the urban semantic network language system.Both of the channels are basic preparation for urban design programming's computer implementation.The principle research of semantic network programming of urban design is a study of method operating based on urban semantic network.The basic principles,such as graph theory,matrix principle and operation principle are implement ways of the method.According to the characteristics of the urban design programming,this thesis introduces several kinds of typical nomographs.According to the decision-making model and the problem model of urban design,it introduces several diversified ways of empowermen.Through the duality and coupling,isomorphism and fractal,this thesis further expands the principle of the programming method and illustrates the related principle of extensionality.Semantic network programming technology of urban design is the core processor of the theories mentioned above.Data processing technology which constructs basis elements for urban semantic network is the precondition of programming method.In order to strengthen the effectiveness and capacity of the method,this thesis introduces of logic,extenics and other programming technologies.The introduction of logic solves the logical and examination certificate in operation process of urban semantic network.The introduction of extenics improves the ability of the semantic network method.Other technologies improves the ability of the method in different sections and aspects.The introduction of interdisciplinary methods illustrates the technical compatibility and expand capacity of the method.Having discussed the mode,procedures and strategies,the paper has made an multi-level and multi-angle urban design programming experiments respectively from three types of overall level,sector level,and special urban design in the practice of urban design semantic network programming.According to different programming problems,it shows the effectiveness of this method through different programming forms and specific programming practices.In conclusion,the combination between urban design programming and semantic network method constructs the system and framework of semantic network programming method of urban design.This formal programming method can be applied in the field of urban design to solve practical problems and add a new theory and method to urban design,which effectively expands the thought of urban design research.