2013-14: LDHD: Opening Workshop: September 8-12, 2013

Workshop Information

September 8, 2013 - 8:30am - September 12, 2013 - 5:00pm

The Opening Workshop for this program was held Sunday - Thursday, September 8 - 12, 2013, at the Radisson Hotel Research Triangle Park, NC. The hotel is in close proximity to SAMSI.

On Sunday, September 8 there were tutorial lectures by leading researchers. From Monday to Wednesday, invited speakers addressed specific research topics relevant to Working Groups in the program, which were formed on Wednesday, September 11. A poster session and reception took place on Monday, September 9.

Immediately following the workshop, on Thursday and Friday, the Working Groups convened at SAMSI. In these meetings, each working group identified initial research activities and relevant datasets for the program year. These foci will, of course, evolve over the year, and Working Groups may either merge or emerge as research progresses.

The Opening Workshop provided an overview of the core topics relevant to the LDHD program, which is devoted to the development of methodological, theoretical, and computational treatment of high-dimensional mathematical and statistical models. For a more detailed description of the topics to be covered, see the LDHD homepage at http://samsi.info/LDHD.


Sunday, September 8, 2013
Radisson RTP, Room H

8:30-8:50 a.m. Registration and Continental Breakfast
8:50-9:00 Welcome
9:00-10:00 Tutorial 1
Arnak Dalalyan, ENSAE/CREST
Learning Heteroscedastic Models by Convex Programming under Group Sparsity
10:00-10:30 Break
10:30-11:30 Tutorial 2
Ming Yuan, Georgia Institute of Technology
Recent Advances in High Dimensional Covariance Matrix Estimation
11:30-1:00 Lunch (provided at the Radisson)
1:00-2:00 Tutorial 3
Yurii Nesterov, Catholic University of Louvain
Universal Gradient Methods
2:00-2:30 Break
2:30-3:30 Tutorial 4
David Dunson, Duke University
Bayesian Learning of LDHD
3:30-4:00 Break
4:00-5:00 Tutorial 5
Anna Gilbert, University of Michigan
An Introduction to Sparse Approximation

Monday, September 9, 2013
Radisson RTP, Room H

8:30-8:55 a.m. Registration and Continental Breakfast
8:55-9:00 Welcome
9:00-9:40 Bin Yu, Univ. of California-Berkeley
Modeling Visual Cortex V4 in Naturalistic Conditions with Invariant and Sparse Image Representations
9:40-10:00 Break
10:00-10:40 Karim Lounici, Georgia Institute of Technology
Estimation and Variable Selection with Exponential Weights
10:40-11:00 Break
11:00-11:40 Sayan Mukherjee, Duke University
Low Dimensional Topology in Complex Processes
11:40-1:00 Lunch (provided at the Radisson)
1:00-1:40 Joel Tropp, California Institute of Technology
Living on the Edge: A Geometric Theory of Phase Transitions in Convex Optimization
1:40-2:00 Break
2:00-2:40 Tony Cai, University of Pennsylvania
Sparse PCA: Optimal Rates and Adaptive Estimation
2:40-3:00 Break
3:00-3:40 John Wright, Columbia University
Effective Representations for High Dimensional Visual Data
3:40-4:00 Break
4:00-5:00 Discussion
5:00-6:30 Poster Session and Reception

SAMSI will provide poster presentation boards and tape. The board dimensions are 4 ft. wide by 3 ft. high. They are tri-fold with each side being 1 ft. wide and the center 2 ft. wide. Please make sure your poster fits the board. The boards can accommodate up to 16 pages of paper measuring 8.5 inches by 11 inches.

Tuesday, September 10, 2013
Radisson RTP, Room H

8:30-9:00 a.m. Continental Breakfast
9:00-9:40 Gilad Lerman, University of Minnesota
Robust Subspace Modeling
9:40-10:00 Break
10:00-10:40 Inderjit Dhillon, University of Texas
Sparse Inverse Covariance Estimation for a Million Variables
10:40-11:00 Break
11:00-11:40 Cun-Hui Zhang, Rutgers University
Sample Size Requirement for Some Low-Dimensional Estimation Problems
11:40-1:00 Lunch (provided at the Radisson)
1:00-1:40 Yaniv Plan, University of Michigan
Binary Matrix Completion
1:40-2:00 Break
2:00-2:40 Liza Levina, University of Michigan
Mixed and Covariate-Dependent Graphical Models
2:40-3:00 Break
3:00-4:00 Discussion
4:00 Adjourn for the day

Wednesday, September 11, 2013
Radisson RTP, Room H

8:30-9:00 a.m. Continental Breakfast
9:00-9:40 Ingrid Daubechies, Duke University
High Dimensional Data from Biology and Art History
9:40-10:00 Break
10:00-10:40 Boaz Nadler, Weizmann Institute of Science
Unsupervised Ranking and Ensemble Learning
10:40-11:00 Break
11:00-11:40 Rebecca Willett, University of Wisconsin-Madison
Efficient Tracking in Dynamic Environments
11:40-12:00 Break
12:00-12:45 Discussion
12:45-2:15 Lunch (provided at the Radisson)
2:15-4:00 Working Group Formation and Initial Meetings

Thursday, September 12, 2013

9:00-12:00 p.m. Working Group Meetings
12:00-2:00 Lunch (provided at SAMSI)
2:00-5:00 Working Group Meetings