scholarly journals Chinese-English-Yi Public Opinion Information Database Construction and Implementation

Author(s):  
Y.Y. Yang ◽  
B.Z. Li ◽  
J.M. Wang ◽  
C.S. Yuan ◽  
R Lin ◽  
...  
2019 ◽  
Vol 2 ◽  
pp. 1-4
Author(s):  
Ruolei Wang ◽  
Jianjun Liu ◽  
Zhao Li ◽  
Jun Zhang

<p><strong>Abstract.</strong> Since the project of dynamic updating of national fundamental geographic information database was launched, National Geomatics Center of China has published the newest version of multi-scale databases, derived databases and subdivision maps once a year. As one of the derived cartographic databases, administrative region index database allows users to find maps covering their regions of interest quickly by input the name or number of the relevant map. Due to the boundaries or attributes of some administrative regions may often change, updating of administrative region index database is necessary. To improve efficiency and quality in the national-level map production and database construction, an algorithm of administrative region index map automatic generalization has been proposed in this paper to replace the traditional manual production lines, which are time-consuming and uncontrollable in quality. The method goes in depth with handling coordinate recognition error accumulation and residue lines caused by the clip.</p>


Author(s):  
W. Ma ◽  
J. Zhang ◽  
Y. Zhao ◽  
P. Zhang ◽  
Y. Dang ◽  
...  

In order to make the quality evaluation for the Fundamental Geographic Information Databases(FGIDB) more comprehensive, objective and accurate, this paper studies and establishes a quality model of FGIDB, which formed by the standardization of database construction and quality control, the conformity of data set quality and the functionality of database management system, and also designs the overall principles, contents and methods of the quality evaluation for FGIDB, providing the basis and reference for carry out quality control and quality evaluation for FGIDB. This paper designs the quality elements, evaluation items and properties of the Fundamental Geographic Information Database gradually based on the quality model framework. Connected organically, these quality elements and evaluation items constitute the quality model of the Fundamental Geographic Information Database. This model is the foundation for the quality demand stipulation and quality evaluation of the Fundamental Geographic Information Database, and is of great significance on the quality assurance in the design and development stage, the demand formulation in the testing evaluation stage, and the standard system construction for quality evaluation technology of the Fundamental Geographic Information Database.


1966 ◽  
Vol 11 (6) ◽  
pp. 316-316
Author(s):  
No authorship indicated
Keyword(s):  

1951 ◽  
Vol 35 (4) ◽  
pp. 302-302
Author(s):  
Donald G. Paterson
Keyword(s):  

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