7:30-8:30am |
Breakfast [Copper Conference Center] |

Room |
Bighorn B |
Bighorn C/1 |
Bighorn C/2 |

Session 1 |

Topic |
Linear Algebra For Data Mining, Part 1 Linear Systems |
Optimization, Part 1 |
Architecture/MG & DD, Part 1 |

Chair |
Geoff Sanders |
Tim Kelley |
Carol Woodward |

8:00am |
**Shen, Zhao-Li **
*"An efficient preconditioner based on a partial low-rank factorization for PageRank problems"* |
**Greene, Patrick **
*"Newton's Method with Discontinuous Galerkin Projections Applied to Minimization Problems in Level Set Re-distancing and Weighted Condition Number Mesh Relaxation"* |
**Appelhans, David **
*"Nested Iteration Range Decomposition: A scalable, low communication PDE solution method with numerical results on advection-diffusion problem"* |

8:25am |
**Deweese, Kevin **
*"An Empirical Comparison of Graph Laplacian Solvers"* |
**Haddock, Jamie **
*"A Sampling Kaczmarz-Motzkin Algorithm for Linear Feasibility"* |
Open |

8:50am |
**Fox, Alyson **
*"Numerical Methods for Gremban's Expansion of Signed Graphs "* |
**Kuberry, Paul **
*"An optimization-based approach for interfaces with gaps and overlaps via virtual controls "* |
**Chow, Edmond **
*"Reducing communication costs in distributed relaxation methods "* |

9:15am |
**Howell, Gary **
*"LU Preconditioning for Iterative Solution of Overdetermed Sparse Least Squares Problems "* |
**Qian, Elizabeth **
*"A Certified Reduced Basis Approach to PDE-constrained Parameter Optimization "* |
**Ruede, Ulrich **
*"Parallel Textbook Multigrid Efficiency "* |

9:40am |
Open |
**Leyffer, Sven **
*"Mixed-Integer PDE Constrained Optimization "* |
**Szyld, Daniel **
*"Asynchronous Optimized Schwarz Methods for the solution of PDEs "* |

10:05am |
Coffee and Tea Service |

Session 2 |

Topic |
Linear Algebra For Data Mining, Part 2 Eigensystems and SVD |
Optimization, Part 2 |
Architecture/Algorithms |

Chair |
Alex Breuer |
Sven Leyffer |
Kirk Jordan |

10:25am |
**Henson, Van Emden **
*"Tools for spectral near-bipartite community detection "* |
**Ulbrich, Stefan **
*"Preconditioners for time-dependent PDE-constrained optimization and their application based on Parareal time-domain decomposition "* |
**Boman, Erik **
*"Parallel and Asynchronous Preconditioners for Manycore Architectures "* |

10:50am |
**Benson, Austin **
*"Higher-order organization of complex networks"* |
**Rund, Armin **
*"PDE-constrained optimization with switching controls"* |
**Grigori, Laura **
*"Low rank approximation of a sparse matrix based on LU factorization with column and row tournament pivoting"* |

11:15am |
**Sanders, Geoff **
*"Detecting Highly-Cyclic Structure with Complex Eigenpairs"* |
**Lass, Oliver **
*"Robust optimization using a second order approximation technique in parametrized shape optimization"* |
**Sao, Piyush **
*"Scalable Sparse Direct Solver for Hybrid Architecture"* |

11:40am |
**Klinvex, Alicia **
*"Clustering network data through effective use of eigensolvers and hypergraph models"* |
**Ulbrich, Michael **
*"Constrained Optimization with Low-Rank Tensors and Applications to Problems with PDEs under Uncertainty "* |
**Schulz, Martin **
*"Addressing Performance Challenges on Modern Node Architectures "* |

12:05am |
**Noack, Andreas **
*"Faster than FastPCA: High performance principal components analysis of genomics data"* |
**Wild, Stefan **
*"Manifold Sampling for L1 Nonconvex Optimization "* |
**Yamazaki, Ichitaro **
*"Preconditioning Communication-Avoiding Krylov Methods"* |

12:30-2:00pm |
Lunch Break |

Discussions 2:00pm-4:00pm |

Linear Algebraic Data Mining Research Topics - Breuer/Sanders to moderate |

2:00-2:30 |
Goals statements, group organization |

2:30-3:30 |
Group discussions |

3:30-4:00 |
Reconvene, future planning |

4:00-4:30pm |
Coffee and Tea Service |

Session 3 |

Topic |
Linear Algebra For Data Mining, Part 3 Extended Topics |
Krylov Methods, Part 1 |
Ice/Climate |

Chair |
Van Emden Henson |
Homer Walker |
Ray Tuminaro |

4:30pm |
**Benzi, Michele **
*"Numerical solution of differential equations on graphs"* |
**Ghai, Aditi **
*"An Empirical Comparison of Krylov Subspace Methods for Nonsymmetric Linear Systems from PDEs"* |
**Allen, Jeffery **
*"Fluidity Based Formulation of Nonlinear Stokes Flow for Ice Sheets using FOSLS"* |

4:55pm |
**Pasini, Massimiliano Lupo **
*"Monte Carlo Acceleration of Iterative Solvers for Eigenvalue Problems "* |
**Gu, Xian-Ming **
*"Nested Krylov subspace methods based on the Hessenberg procedure for shifted linear systems"* |
**Bueler, Ed **
*"Computing glacier geometry in nonlinear complementarity problem form"* |

5:20pm |
**Fairbanks, James **
*"Eigenresidual Tolerances for Spectral Partitioning"* |
**O'Connell, Meghan **
*"Krylov Recycling for Sequences of Shifted Systems"* |
**Gardner, David **
*"Implicit Time Stepping and Preconditioning for Global Atmospheric Dynamics in Climate Simulation"* |

5:45pm |
**Lehoucq, Rich **
*"Hypothesis testing for community detection on the stochastic block model"* |
**Robertson, Amber **
*"Approximation of the Scattering Amplitude using Nonsymmetric Saddle Point Matrices"* |
**Isaac, Tobin **
*"DofColumns: a plugin for PETSc's PCGAMG"* |

6:10pm |
**Glaws, Andrew **
*"A Lanczos method for parameter dimension reduction with inverse regression "* |
**Sun, Dong-Lin **
*"A block GMRES method with deflated restarting for solving linear systems with multiple shifts and multiple right-hand sides"* |
**Martin, Daniel **
*"Solver Challenges in AMR Ice Sheet Modeling"* |

6:35pm |
Dinner Break |