Title
Prediction of anterior scoliotic spinal curve from trunk surface using support vector regression
Abstract
This paper proposes a framework for the training of learning systems for regression when (i) the number of examples is small and contains interdependencies, and (ii) each sample consists of large quantities of discrete data that are functional in nature. The objective is to achieve robust yet nonlinear relations between inputs and outputs. In this study, laser scans of the trunk surface and reconstructions of spinal data from X-rays from scoliosis patients were functionally represented as surfaces and curves. Leading functional principal component coefficients thereof constituted comprehensive features, and achieved sufficient dimensionality reduction for the prediction of spine from trunk. As a learning method, support vector regression (SVR) was chosen for its strong generalizability capability that stems from penalizing model complexity. A first robust prediction in this research application was obtained, with coefficients of determination for leading outputs of 0.70 and 0.82, respectively, in the test set. Those translated to a spinal curve prediction L"2-error of 3.61mm, comparable to measurement error in data.
Year
DOI
Venue
2005
10.1016/j.engappai.2005.03.006
Eng. Appl. of AI
Keywords
Field
DocType
spinal data,support vector regression,anterior scoliotic spinal curve,robust prediction,large quantity,functional principal component,measurement error,comprehensive feature,discrete data,trunk surface,spinal curve prediction,functional data analysis,laser scanning,coefficient of determination,principal component analysis,principal components analysis
Functional data analysis,Dimensionality reduction,Regression,Computer science,Support vector machine,Artificial intelligence,Observational error,Machine learning,Trunk,Principal component analysis,Test set
Journal
Volume
Issue
ISSN
18
8
Engineering Applications of Artificial Intelligence
Citations 
PageRank 
References 
11
1.83
6
Authors
5
Name
Order
Citations
PageRank
Charles Bergeron11008.31
Farida Cheriet248261.48
Janet L Ronsky3174.51
Ronald Zernicke4111.83
Hubert Labelle522638.65