A study of various techniques for storing inhomogeneous descriptive data of digital maps

Periodica polytechnica: electrical engineering

Zsigmond Máriás¹  Roberto Giachetta¹ 

关键词: geographical information systems;    large-scale spatial data storage;    document-oriented databases;    object-oriented databases;    performance analysis;   

DOI  :  

来源: Budapest University of Technology and Economics

【 摘 要 】

In contemporary Geographical Information Systems (GIS) the large variety of digital map sources requires the handling and storing of various descriptive data in a single storage facility. Although the number and type of attributes can vary among different maps, the storage of such inhomogeneous data in a single database is difficult, as querying is an essential task and requires fast retrieval of data based on any present attribute.In this study, the authors compare three different approaches to this problem based on relational and objectoriented database systems by implementing and testing with massive inhomogeneous and altering descriptive data. Since this problem is not only typical in the field of GIS, the solution can be applied generally to any domain using inhomogeneous data, like e-commerce systems and document warehouses.

【 授权许可】

Unknown