Regularized partial least squares with an application to NMR spectroscopy. (19th November 2012)

• Record Type: Journal Article
• Authors: Allen, Genevera I.; Peterson, Christine; Vannucci, Marina; Maletić‐Savatić, Mirjana
• Is Part Of: Statistical analysis and data mining. Volume 6:Number 4(2013)
• Page Start: 302
• Page End: 314
• Publication Date: 2012-11-19
• Subjects: Data mining -- Statistical methods -- Periodicals; 006.312
• DOI: 10.1002/sam.11169
• Languages: English
• ISSNs: 1932-1864

Abstract

<abstract abstract-type="main" xml:lang="en"> <title>Abstract</title> <p>High‐dimensional data common in genomics, proteomics, and chemometrics often contains complicated correlation structures. Recently, partial least squares (PLS) and Sparse PLS methods have gained attention in these areas as dimension reduction techniques in the context of supervised data analysis. We introduce a framework for Regularized PLS by solving a relaxation of the SIMPLS optimization problem with penalties on the PLS loadings vectors. Our approach enjoys many advantages including flexibility, general penalties, easy interpretation of results, and fast computation in high‐dimensional settings. We also outline extensions of our methods leading to novel methods for non‐negative PLS and generalized PLS, an adoption of PLS for structured data. We demonstrate the utility of our methods through simulations and a case study on proton Nuclear Magnetic Resonance (NMR) spectroscopy data. © 2012 Wiley Periodicals, Inc. Statistical Analysis and Data Mining, 2012</p> </abstract>