Plausibility of Databases and the Relation to Imputation Methods - Brossura

Fritz, Heinrich; Filzmoser, Peter

 
9783836459921: Plausibility of Databases and the Relation to Imputation Methods
Brossura
ISBN 10: 3836459922 ISBN 13: 9783836459921
Casa editrice: Vdm Verlag Dr Mueller E K, 2008

Sinossi

Revision with unchanged content. The estimation of the plausibility of a set of observations basically depends on the main structure which stands behind these data. Observations which fit into this estimated structure seem more plausible, than observations with large distance to such structure estimates. For representing the structure of a data set, here principal components are used. Since single observations which do not follow the main structure of a data set (outliers) should not influence such estimations, robust methods are considered primarily in this context. The estimation of missing values is based on principal component analysis as well. Iteratively principal components are estimated, and observations are projected onto them until convergence of this process. In this context existing algorithms have been improved concerning the quality of imputation and runtime behavior. In particular this improvement focuses on the projection methods which are used to project observations containing missings onto principal components.

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L'autore

Heinrich Fritz: 2003-2007 Computer science studies at the Vienna University of Technology.Graduated 2006 in Data Engineeringand Statistics, 2007 in Business Engineering and Computer Science as well as Computer Science Management.Peter Filzmoser: studied Applied Mathematics at the ViennaUniversity of Technology, where he also wrote hisdoctoral thesis and habilitation. His research is in the field ofmultivariate and robust statistics.

(born 1968) studied Applied Mathematics at the ViennaUniversity of Technology, Austria, where he also wrote hisdoctoral thesis and habilitation. His research is in the field ofmultivariate and robust statistics. Since 2001 he is dozent atthe Statistics Department at Vienna University of Technology.

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Editore
Vdm Verlag Dr Mueller E K
Data di pubblicazione
2008
Lingua
Inglese
ISBN 10 
3836459922
ISBN 13 
9783836459921
Rilegatura
Copertina flessibile
Numero di pagine
96
Contatto del produttore
non disponibile
Persona responsabile
non disponibile

Altre edizioni note dello stesso titolo

9783639435788: Plausibility of Databases: and the Relation to Imputation Methods

Edizione in evidenza

ISBN 10:  3639435788 ISBN 13:  9783639435788
Casa editrice: AV Akademikerverlag, 2012
Brossura