Gallo, Michele; Trendafilov, Nickolay and Buccianti, Antonella
(2016).
| DOI (Digital Object Identifier) Link: | https://doi.org/10.1007/s10651-016-0346-y |
|---|---|
| Google Scholar: | Look up in Google Scholar |
Abstract
The geochemistry of floodplain sediments is fundamental to monitor
environmental changes and to quantify their contribution to natural and anthropic processes. A floodplain sediment composition is a vector of positive elements which sum to a fixed constant. The analysis of high-dimensional compositions requires methods that produce results involving only a small portion of the original variables. On the other hand, the analysis must take into account the additional constraints specific to compositions. With the purpose of studying these problems, a new procedure for sparse PCA is proposed on European floodplain sediment samples.
| Item Type: | Journal Item |
|---|---|
| Copyright Holders: | 2016 Springer Science+Business Media New York |
| ISSN: | 1352-8505 |
| Keywords: | CoDa; Logratios; Steepest descent; Stiefel manifold |
| Academic Unit/School: | Faculty of Science, Technology, Engineering and Mathematics (STEM) > Mathematics and Statistics Faculty of Science, Technology, Engineering and Mathematics (STEM) |
| Item ID: | 49288 |
| Depositing User: | Nickolay Trendafilov |
| Date Deposited: | 02 May 2017 14:30 |
| Last Modified: | 03 May 2019 19:09 |
| URI: | http://oro.open.ac.uk/id/eprint/49288 |
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