Multiway Data Analysis  
Tentative Programme  May 2630, 2008 


Tentative Programme Monday May 26 10:00h to 14:00h Level: Application oriented / Nontechnical level. Exploratory Analysis of Twoway data (Principal component analysis, PCA). Description of various types of threeway data (threemode vs. twomode). Introduction into most popular methods for exploratory analysis of threeway data (CANDECOMP/PARAFAC, Tucker3), which are generalizations of PCA. Tuesday May 27 10:00h to 14:00h Level: Application oriented / Lowtechnical level. Preprocessing threeway data (centering, normalizing). Ins and outs of CANDECOMP/PARAFAC.
Level: Computer practice. Introduction into matlab routines and Kiers´ threeway program. Wednesday May 28 10:00h to 14:00h Level: Application oriented / Lowtechnical level. Ins and outs of Tucker models.
Level: Computer / Data analysis practice. Carrying out example threeway analyses, using matlab routines. Possibly: Analyzing data from participants own research. Thursday May 29 10:00h to 14:00h Level: Application oriented / Lowtechnical level. Description of methods for analyzing twomode threeway data (i.e. threeway data in which data slices refer to the same row and column entities, e.g. sets of correlation matrices among a number of variables, sets of matrices of similarities among a number of entities, etc.).
Level: Application oriented / Lowtechnical level. Two kinds of special threeway methods:Constrained threeway methods.
Friday May 30 Extension of Wednesday (by Jos ten Berge) 10:00h to 14:00h Level: Most technical level so far. Targeted at chemometricians. On Tucker3 fitting with may core elements constrained to be zero. Mathematical results (based on typical rank and simplicity transformations) and Simplimax. Level: Computer practice and presentation in the group. Analyzing further examples from participants own research. 

