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The Research And Application Of Spatial-temporal Data Model

Posted on:2008-12-30Degree:MasterType:Thesis
Country:ChinaCandidate:Y ZhangFull Text:PDF
GTID:2178360215475378Subject:Computer software and theory
Abstract/Summary:PDF Full Text Request
As the spatial-temporal data increasing cosmically and data mining theories developing continuously, spatial-temporal data mining has become a research hotspot of experts and scholars in fields of computer and geography information system. As being the core and the base of spatial-temporal data mining, the research of spatial-temporal data model has very important meaning.This paper introduced the basic conception of spatial-temporal data model, analyzed existing spatial-temporal data models in detail, and discussed pros and cons of each one.To solve the problem that common spatial-temporal data models usually point to specific application and cannot be universal, this paper utilized that object-oriented modeling had little limit of relation model paradigm and supported the nesting and variable length record of the object. A spatial-temporal data model was proposed which has integrative attributive character and spatial-temporal relation. The elements form, information category and interrelations between elements of this model are formalized defined. This paper also showed the attribute operation, spatial operation, temporal operation of spatial-temporal objects and operations among them.Besides, basing on this object-oriented spatial-temporal data model, this paper realized a information management system of city ground contribution, designed related spatial-temporal objects, and realized basic functions of query, modification and data mining. At last this data model is proved to be effective.
Keywords/Search Tags:spatial-temporal data model, spatial-temporal data mining, object-oriented
PDF Full Text Request
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