2009 20th International Workshop on Database and Expert Systems Application Stacked Feature Selection in Liver Disease Using IMR-MS Analysis Linz, Austria August 31-September 04 ISBN: 978-0-7695-3763-4
DOI Bookmark: http://doi.ieeecomputersociety.org/10.1109/DEXA.2009.20
The combination of different feature selection approaches has shown to produce feasible feature subsets with high predictive value. We here introduce a modified version of Stacked Feature Ranking (SFR), using a two level learning architecture with a suggestion and a decision layer aggregating different feature selectors to a consensus feature ranking. Ion molecule reaction mass spectrometry (IMR-MS) was applied to breath gas samples of a total of 57 patients suffering from alcoholic fatty liver disease (AFLD) and nonalcoholic fatty liver disease (NAFLD), and 35 healthy controls with the objective of identifying breath gas marker candidates at disease versus non-disease state. We compared SFR with four common feature selection methods and one ensemble-based approach, indicating a significantly higher discriminatory ability of up to 10% for the selected subsets using ROC analysis. SFR is a powerful tool for the identification of highly discriminating biomarkers in complex biological mixtures.
Index Terms:
data mining, feature selection, logistic regression, breath gas analysis, mass spectrometry
Citation:
Michael Netzer, Gunda Millonig, Bernhard Pfeifer, Kanthida Kusonmano, Siegfried Praun, Johannes Villinger, Wolfgang Vogel, Christian Baumgartner, "Stacked Feature Selection in Liver Disease Using IMR-MS Analysis," dexa, pp.333-337, 2009 20th International Workshop on Database and Expert Systems Application, 2009 Usage of this product signifies your acceptance of the Terms of Use. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||