Journal Article10.1111/J.1467-9671.2007.01035.X
Framework and Workflows for Spatial Database Generalization
Byong-Nam Choe,Young-Gul Kim +1 more
TL;DR: This study suggests a framework for database generalization, and then defines operators that reflect the changes in database schema and content within the generalization process.
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Abstract: Spatial database generalization deals not only with geometrical simplification, but also with changes in database schema and content. The purpose of this research is to suggest methods for database generalization through the abstraction of a detailed spatial database. To accomplish this goal, this study suggests a framework for database generalization, and then defines operators that reflect the changes in database schema and content within the generalization process. A set of operator sequences (workflows) is used to specify and arrange the operators required to abstract a given feature. In order to assess the validity of the suggested method, a prototype system is developed. The results show that the efficiency of generalization can be improved, and data loss or distortion reduced as well.
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Citations
Relation Modelling within Multiple Representation Databases and Generalisation Services
TL;DR: The research and development presented here have been carried out within an application-oriented research project of the University of Zurich in cooperation with the company Axes Systems, with the focus on improving automated generalisation for topographic map production.
23
•Proceedings Article
Using Semantic Similarity to Improve Information Discovery in Spatial Data Infrastructure.
Fabio Gomes de Andrade,Cláudio de Souza Baptista +1 more
- 01 Jan 2010
TL;DR: In this paper, the authors propose a framework that uses ontologies and thematic relevance to suggest a measurement that allows evaluating how relevant is each resource offered by the infrastructure to the user's query.
7
Evaluating Spatial Data Quality in GIS Database
Ying Su,Lei Yang,Zhanming Jin +2 more
- 08 Oct 2007
TL;DR: Four quantitative measures are introduced to assess the quality of spatial data and four assumptions are presented where the measures can be evaluated efficiently by numerical calculation.
6
The Selection Methodology of Road Network Data for Generalization of Digital Topographic Map
TL;DR: The generalized results showed that the road objects with relatively high importance are selected appropriately according to the target scale levels after the qualitative and quantitative evaluations.
웹 지도서비스를 위한 다축척 지도 데이터셋 자동생성 기법 연구
TL;DR: The map generalization methodology for automatic construction of multi-scale database from the primary data is proposed and the prototype ofmulti-scale map dataset is generated.
References
Algorithms for the reduction of the number of points required to represent a digitized line or its caricature
TL;DR: In this paper, two algorithms to reduce the number of points required to represent the line and, if desired, produce caricatures are presented and compared with the most promising methods so far suggested.
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A review and conceptual framework of automated map generalization
Kurt E. Brassel,Robert Weibel +1 more
TL;DR: It is argued that in computer-assisted generalization, the spatial modelling process can be simulated only by strategies based on understanding and not by a mere sequence of operational processing steps.
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