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Research And Implementation Of Road Ecology Landscape Assessment And Revovery System On GIS And ES

Posted on:2007-12-03Degree:MasterType:Thesis
Country:ChinaCandidate:L ShiFull Text:PDF
GTID:2178360185455554Subject:Computer application technology
Abstract/Summary:PDF Full Text Request
Along with the road construction unceasing develop, our country road construction also entered the fast development time, The road construction further develops from the former simplification to the harmonious road landscape construction, It not only pays great attention to road own landscape also to the various perfect union which synthesize the consideration peripheral landscape coordination and so on..This paper applies the GIS and ES technology in road landscape assessment and recovery the system for to assess the road influence the road landscape in and after the construction, it proposed the landscape appraisal result, recovery opinion and its measure, it provides the reality the scientific basis that solves the road ecology landscape recovery and design.The paper has determined to adopt the pattern that geographic information system and the expert system unifies in the road landscape assessment and recovery system, which may make up the expert system and the geographic information system respective insufficiency, it might provide the science decision-making and the consultation after the union geographic information system application, and it also has provided the perfect space data information for the expert system application. According to the characteristic of the road landscape assessment and recovery knowledge, that uses the knowledge expression method which the production rule and the confidence level unifies in the system, the system knowledge library are constructed by the assessment index knowledge, the assessment model knowledge, the assessment criteria knowledge and recovery plan knowledge and so on;the comprehensive database has been established by gathering road natural attribute and spatial data and so on;The assessment implementation and the knowledge library knowledge had decided in the inducing equipment work flow uses the bidirectional inference to unify, and the confidence level disseminates in the inference to front;The important work is the geographic information system and the expert system union realization, after the fixed point demonstrated the spatial attribute information and the assessment completes this assess after the modifies space data and the natural attribute data for the recovery. This system realization not only has enriched the expert system theory knowledge, it also has opened up the expert system application domain. This project for the first time applies the expert system technology and the geographic information system technology union to the road landscape assessment and recovery field, this aspect research in domestic has certain advancement.This system has adopt many kinds of technologies, the main are the geographic information system technology, expert system technology, the space data base technology, as well as the landscape assessment and recovery and so on aspect knowledge and so on, it's thenew application that the many kinds of technologies unifies in the landscape appraisal and recovery aspect, also has opened up the existing technical application field.
Keywords/Search Tags:Geography information system, Expert system, Knowledge representation, Landscape assessment and recovery
PDF Full Text Request
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