Public Workshop: Friday, August 10, 2001
Location: DIMACS Center, CoRE Building, Rutgers University
This material is based upon work supported by the National Science Foundation under Grant No. 0100921
Sunday, August 5, 2001Arrival of out-of-town participants. An evening reception for all participants at the Holiday Inn in South Plainfield from 6:30 - 8:30 pm.
Monday, August 6, 20019:15 - 9:45 Breakfast 9:45 - 9:50 Welcome and Greeting: Fred S. Roberts, DIMACS Director 9:50 - 10:00 Welcome and Greeting: Working Group Organizers 10:00 - 10:55 Lawrence J. Hubert, University of Illinois, Phipps Arabie, Rutgers University and Jacqueline Meulman, Leiden University LUS (Linear Unidimensional Scaling) in L2 Norm: Dynamic Programming 11:00 - 11:55 Willem J. Heiser and F. Busing, Leiden University PROXSCAL: A General Program for Two-way and Three-way Euclidean MDS with Restrictions on the Coordinates 12:00 - 2:00 Lunch 2:00 - 2:35 Michael Trosset, College of William & Mary Algorithms for Minimizing the Raw Stress Criterion 2:40 - 3:35 Michael Brusco, Florida State University Linear and Integer Programming Methods for Least Absolute Deviation Unidimensional and Multidimensional Scaling 3:40 - 4:00 Break 4:00 - 4:55 Lawrence J. Hubert, University of Illinois, Phipps Arabie, Rutgers University and Jacqueline Meulman, Leiden University LUS in the L1 Norm: The Fitting of (Multiple) Unidimensional Scales by Linear Programming
Tuesday August 7, 20019:30 - 10:00 Breakfast 10:00 - 10:55 Jos ten Berge, University of Groningen Three-way Algebra in the context of Tucker Three-Way PCA, CANDECOMP/PARAFAC (INDSCAL) and hybrid decompositions in between 11:00 - 11:55 Anil Chaturvedi, Kraft Foods and J. Douglas Carroll, Rutgers University Product Differentiation: how much due to Continuous Features and how much due to Discrete Features (Introduces a three-way hybrid model called "CLUSCALE", which combines three-way overlapping clustering with an individual differences MDS model, and an algorithm for fitting this model.) 12:00 - 2:00 Lunch 2:00 - 2:55 Yoshio Takane, McGill University Kernel Methods for Nonlinear Multivariate Analysis 3:00 - 3:35 Lawrence J. Hubert, University of Illinois, Phipps Arabie, Rutgers University and Jacqueline Meulman, Leiden University LUS in the L2 Norm: Solving Associated Linear (In)equality Constrained Least Squares Tasks 3:40 - 4:00 Break 4:00 - 4:55 Willem J. Heiser and F. Busing, Leiden University The IM Algorithm for Sparse MDS Data: Some Initial Experiences
Wednesday August 8, 20019:30 - 10:00 Breakfast 10:00 - 10:55 Michael Trosset, College of William & Mary Multidimensional Scaling and Constrained Optimization 11:00 - 11:55 Lawrence J. Hubert, University of Illinois, Phipps Arabie, Rutgers University and Jacqueline Meulman, Leiden University Two Papers: (1) LUS in the L2 Norm: Iterative Quadratic Assignment (2) LUS in the L2 Norm: Gradient-Based and Nonlinear Programming Strategies 12:00 - 2:00 Lunch 2:00 - 2:55 Mark de Rooij, Leiden University Triadic Distance Models: Properties and Estimation 3:00 - 3:35 A roundtable discussion of application of modern optimization techniques to fitting MDS, clustering, and related models. Fred Roberts, Peter Hammer, Farid Alizadeh, Olga Cordero-Brana, Ilya Muchnik, Sylvain Perron, Mario Szegedy, plus audience members. 3:40 - 4:00 Break 4:00 - 5:00 Continuation of roundtable discussion 5:30 - 6:30 Cocktail Hour, outside DIMACS Lounge (Room 401) 6:30 - 7:30 Dinner to be served inside DIMACS Lounge (Room 401)
Thursday, August 9, 2001Day off. Small groups of participants can arrange informal meetings to discuss specific research goals or programs, and/or to prepare for presentations in Public Session on Friday. Participants not involved in such activities may use this day as desired.
Friday, August 10, 2001Public workshop