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5 papers · 1 filter
Visualization of Extremely Sparse Contingency Table by Taxicab Correspondence Analysis: A Case Study of Textual Data
V. Choulakian, J. Allard
We present an overview of taxicab correspondence analysis, a robust variant of correspondence analysis, for visualization of extremely sparse ontingency tables. In particular we vi…
High-Degree Splines from Discrete Fourier Transforms: Robust Methods to Obtain the Boundary Conditions
A. Pepin, S. Léger, N. Beaudoin
Computing accurate splines of degree greater than three is still a challenging task in today's applications. In this type of interpolation, high-order derivatives are needed on the…
Improved Moore-Penrose continuation algorithm for the computation of problems with critical points
S. Léger, P. Larocque, D. LeBlanc
Using typical solution strategies to compute the solution curve of challenging problems often leads to the break down of the algorithm. To improve the solution process, numerical c…
Thermal hysteresis in amplification and attenuation of surface-plasmon-polariton waves
Tom G. Mackay, Tran Vinh Son, Alain Haché +1
The propagation of surface-plasmon-polariton (SPP) waves at the planar interface of a metal and a dielectric material was investigated for a dielectric material with strongly tempe…
Notes on Correspondence Analysis of Power Transformed Data Sets
Vartan Choulakian
We prospect for a clear simple picture on CA of power transformed or the Box-Cox transformed data initiated since 2009 by Grenacre. We distinguish two types of data sets : strictly…