Towards automatic detection of erroneous measurement results in a gravity database

• Published in: 2001 IEEE International Conference on Systems, Man and Cybernetics. e-Systems and e-Man for Cybernetics in Cyberspace (Cat.No.01CH37236) Vol. 4; pp. 2170 - 2175 vol.4
• Main Authors: Qian Wen, Gates, A.Q., Beck, J., Kreinovich, V., Keller, G.R.
• Format: Conference Proceeding
• Language: English
• Published: IEEE 2001
• Subjects: Cleaning; Earth; Geologic measurements; Geophysical measurements; Gravity measurement; Image databases; Magnetic field measurement; Q measurement; Regression analysis; Wavelength measurement
• ISBN: 0780370872; 9780780370876
• ISSN: 1062-922X; 2577-1655
• DOI: 10.1109/ICSMC.2001.972877

Geospatial databases often contain erroneous measurements. For some such databases such as gravity databases, the known methods of detecting erroneous measurements-based on regression analysis-do not work well. As a result, to clean such databases, experts use manual methods which are very time-consuming. In this paper, we propose a (natural) "localized" version of regression analysis as a technique for automatic cleaning. We illustrate the efficiency of this technique on the example of the gravity database.