Details zur Publikation

Referenztyp Tagungsbeiträge
DOI / URL
Titel (primär) Rapid and objective integration and zonation of partially co-located models
Titel (sekundär) 15th European Meeting of Environmental and Engineering Geophysics (EAGE-NSG), Dublin, Ireland, 7.-7.9.2009
Autor Paasche, H.; Tronicke, J.; Dietrich, P.;
Erscheinungsjahr 2009
Department MET;
Sprache englisch;
Abstract Cluster analyses are powerful tools for rapidly exploring disparate geophysical models with unknown interrelations. Despite its high potential to objectively extract the dominant structural information from suites of disparate geophysical models, cluster analysis techniques are not commonly used, yet, when analyzing suites of geophysical models. This is due to the following limitations: (i) The considered model area must be fully covered by all models subjected to cluster analysis, (ii) cluster algorithms usually ignore spatial information present in the data bases and are therefore sensitive to high-frequent spatial noise (outliers), and (iii) cluster algorithms, such as fuzzy c-means (FCM), classify data in an unsupervised fashion, potentially ignoring expert knowledge additionally available to the experienced human interpreter and not present in the geophysical data base. In this study, we address all of these issues by modifying and regularizing the standard FCM cluster algorithm to tolerate incomplete data bases incorporating model areas not covered by all available data sets and to consider spatial information present in the data base. We evaluate this new regularized missing value fuzzy c-means (RMVFCM) algorithm in a synthetic study and apply it to a field data base comprising partially co-located crosshole tomographic velocity models.
ID 469
dauerhafte UFZ-Verlinkung https://www.ufz.de/index.php?en=20939&ufzPublicationIdentifier=469
Paasche, H., Tronicke, J., Dietrich, P. (2009):
Rapid and objective integration and zonation of partially co-located models
15th European Meeting of Environmental and Engineering Geophysics (EAGE-NSG), Dublin, Ireland, 7.-7.9.2009
p. 5