PROGRAM
Days: Sunday, March 25th Monday, March 26th Tuesday, March 27th Wednesday, March 28th Thursday, March 29th Friday, March 30th
Sunday, March 25th
View this program: with abstractssession overviewtalk overview
13:00-16:30 Session 1: Iterative Methods for Data Analysis Tutorial [Copper Conference Center]
led by Van Henson (LLNL)
Topics include: solvers and preconditioning for graph problems, matrix functions for graph analysis, spectral partitioning, eigenvector properties, impact of skewed degree distributions, ranking algorithms, Markov chains
19:00-21:00 Session : Registration and Light Buffet Reception [Copper Conference Center]
Registration and Reception, Cash Bar and Light Buffet.
Monday, March 26th
View this program: with abstractssession overviewtalk overview
08:00-10:05 Session 2A: Data Science. Room: Bighorn B.
Chair:
| 08:00 | Scalable Spectral Clustering. Room: Bighorn B. Chair: Geoff Sanders ( abstract ) |
| 08:25 | A domain decomposition approach for object recognition ( abstract ) |
| 08:50 | Multigrid Method as Convolutional Neural Network ( abstract ) |
| 09:15 | Applications of Spectral Clustering to Signed Graph Matrix Representations ( abstract ) |
| 09:40 | An Optimal Control Framework for Efficient Training of Deep Neural Networks ( abstract ) |
08:00-10:05 Session 2B: Optimization. Bighorn C/1.
Chair:
| 08:00 | Robust Nonlinear Optimization ( abstract ) |
| 08:25 | Derivative-Free Robust Optimization by Outer Approximations ( abstract ) |
| 08:50 | Inexact bundle methods for nonsmooth nonconvex optimization in Hilbert space ( abstract ) |
| 09:15 | A Globally Convergent Cutting-Plane Method for Simulation-Based Optimization with Integer Constraints ( abstract ) |
| 09:40 | A locally adapted reduced basis method for solving risk-averse PDE- constrained optimization problems ( abstract ) |
08:00-10:05 Session 2C: Advanced Architectures. Room: Bighorn C/2.
Chair:
| 08:00 | Parallel Algebraic Multigrid with Node-Aware Communication ( abstract ) |
| 08:25 | Optimization of processor allocation for domain decomposed Monte Carlo calculations ( abstract ) |
| 08:50 | Experience porting Monte Carlo particle transport to GPUs ( abstract ) |
| 09:15 | GPUDirect Async: GPU synchronous communication techniques applied to multi-grid methods ( abstract ) |
| 09:40 | RESILIENCE OF THE FINE-GRAINED PARALLEL INCOMPLETE LU FACTORIZATION FOR NON-SYMMETRIC PROBLEMS ( abstract ) |
10:25-12:30 Session 3A: Rank Structured Solvers. Room: Bighorn B.
Chair:
| 10:25 | A parallel hierarchical low-rank Schur complement preconditioner for indefinite linear systems ( abstract ) |
| 10:50 | Effective and Robust SIF Preconditioners for General SPD Matrices ( abstract ) |
| 11:15 | A Distributed-Memory Hierarchical Solver for General Sparse Linear Systems ( abstract ) |
| 11:40 | Low-rank approximation of matrices in BEM applications ( abstract ) |
| 12:05 | An efficient method for block low-rank approximations for kernel matrix systems ( abstract ) |
10:25-12:30 Session 3B: Optimization. Room: Bighorn C/1.
Chair:
| 10:25 | Towards a Scalable Parallel-in-Time Full Space Optimization Algorithm ( abstract ) |
| 10:50 | Sensitivity Analysis for PDE-Constrained Optimization ( abstract ) |
| 11:15 | A Bundle Trust Region Method for Shape Optimization with Stress Constraints for Contact Problems based on Isogeometric Analysis ( abstract ) |
| 11:40 | Global optimization of mixed-integer ODE constrained network problems with application to stationary gas transport ( abstract ) |
| 12:05 | Shape optimization for unsteady fluid-structure interaction ( abstract ) |
10:25-12:30 Session 3C: Multi-physics EM/Fluid Plasma.Room: Bighorn C/2.
Chair:
| 10:25 | High-Order Hybridized Discontinuous Galerkin (HDG) Method and a Multigrid solver for Magnetohydrodynamic applications ( abstract ) |
| 10:50 | Benchmarking Fully-Implicit Discretizations of Multi-fluid Plasma-electromagnetic Models for Pulsed Power Applications ( abstract ) |
| 11:15 | Monolithic Multigrid for a Mixed-Method Finite-Element Formulation of Incompressible, Resistive Magnetohydrodynamics ( abstract ) |
| 11:40 | Block Preconditioning Informed by Plasma Timescales ( abstract ) |
| 12:05 | Progress on Schwarz-type coupling of core- and edge-region magnetic fusion simulations ( abstract ) |
16:30-18:35 Session 4A: Randomized Algorithms. Room: Bighorn B.
Chair:
| 16:30 | A Damped Row Access Method for Solving Ill-Posed Massive Least Squares Problems ( abstract ) |
| 16:55 | A Sampling-based Method for Solving Linear Systems ( abstract ) |
| 17:20 | Iterative projective approach for highly corrupted linear systems ( abstract ) |
| 17:45 | Analysis of Randomized Subspace Iteration: New insights into an old algorithm ( abstract ) |
| 18:10 | Matrix-free construction of HSS representations using adaptive randomized sampling ( abstract ) |
16:30-18:35 Session 4B: Inverse Problems & Regularization. Room: Bighorn C/1.
Chair:
| 16:30 | An Uncertainty-Weighted Asynchronous ADMM Method for Large-Scale PDE Parameter Estimation ( abstract ) |
| 16:55 | A Newton-Based Optimization Method for Quantitative Photo-Acoustic Tomography ( abstract ) |
| 17:20 | Subspace recycling for a sequence of linear problems with general-form Tikhonov regularization ( abstract ) |
| 17:45 | Multilevel Preconditioning for Ridge Regression ( abstract ) |
| 18:10 | Singular Value Analysis of Joint Inversion ( abstract ) |
16:30-18:35 Session 4C: Multi-physics EM/Fluid Plasma. Room: Bighorn C/2.
Chair:
| 16:30 | An implicit, conservative, hybrid particle-kinetic-ion fluid-electron algorithm ( abstract ) |
| 16:55 | Multiscale Radiation Transport Method for Eulerian Radiation-Hydrodyamics ( abstract ) |
| 17:20 | High-Order Low-Order Nonlinear Convergence Accelerator for the Rosenbluth-Fokker-Planck Collision Operator ( abstract ) |
| 17:45 | A framework for microscopic/macroscopic simulations of magnetized plasmas ( abstract ) |
| 18:10 | A low-dispersion, energy-conserving relativistic particle-in-cell algorithm for laser-plasma interaction applications ( abstract ) |
Tuesday, March 27th
View this program: with abstractssession overviewtalk overview
08:00-10:05 Session 5A: Rank Structured Solvers. Room: Bighorn B.
Chair:
| 08:00 | Multilevel Low-Rank Correction Preconditioning Techniques ( abstract ) |
| 08:25 | Rank-structured incomplete factorization preconditioning with adaptive random sampling ( abstract ) |
| 08:50 | A recursive skeletonization factorization based on strong admissibility ( abstract ) |
| 09:15 | Preconditioning for time-dependent problems ( abstract ) |
| 09:40 | Sampling for Hierarchical Approximation of Kernel Matrices ( abstract ) |
08:00-10:05 Session 5B: AMG for Non-Symmetric Systems. Room: Bighorn C/1.
Chair:
| 08:00 | Convergence in Norm of Nonsymmetric Algebraic Multigrid ( abstract ) |
| 08:25 | Approximate Ideal Restriction (AIR): an Algebraic Multigrid Method for Nonsymmetric Linear Systems ( abstract ) |
| 08:50 | Parallel approximate ideal restriction AMG for nonsymmetric linear systems ( abstract ) |
| 09:15 | Solvers for hypersonic flow applications ( abstract ) |
| 09:40 | High-fidelity simulation of wind-turbine incompressible flows with classical and aggregation AMG preconditioners ( abstract ) |
08:00-10:05 Session 5C: Surrogate Models/MOR. Room: Bighorn C/2.
Chair:
| 08:00 | A Lanczos-Stieltjes method for one-dimensional ridge function approximation and integration ( abstract ) |
| 08:25 | Active learning for cost-aware model reduction ( abstract ) |
| 08:50 | Data-Driven Polynomial Ridge Approximation Using Variable Projection ( abstract ) |
10:25-12:30 Session 6A: Advanced Architectures. Room: Bighorn B.
Chair:
| 10:25 | Polynomial Preconditioned GMRES for Communication Reduction ( abstract ) |
| 10:50 | Toward a Community Software Development Kit (SDK) Including Iterative Solver Software ( abstract ) |
| 11:15 | Data Centric Systems: The Architecture Ready for Algorithmic and Implementation Exploitation ( abstract ) |
| 11:40 | A two-level checkpointing formulation for heterogeneous memory systems ( abstract ) |
| 12:05 | A Symbiotic Relationship of Direct and Iterative Methods to Target Sparse Solution on Extreme Scale Computers. ( abstract ) |
10:25-12:30 Session 6B: Nonlinear Solvers. Room: Bighorn C/1.
Chair:
| 10:25 | A concurrent multiscale method using geometric multigrid and the full-approximation scheme with applications to metal plasticity ( abstract ) |
| 10:50 | Convergence Analysis of the EDIIS Algorithm ( abstract ) |
| 11:15 | Adaptive Storage Depth Selection for Anderson Acceleration ( abstract ) |
| 11:40 | Nonlinearly Preconditioned LBFGS and Nesterov Methods as Acceleration Mechanisms for Alternating Least Squares, with Application to Tensor Decomposition ( abstract ) |
10:25-12:30 Session 6C: Uncertainty Quantification. Room: Bighorn C/2.
Chair:
| 10:25 | OPTIMAL ITERATIVE SOLVERS FOR LINEAR SYSTEMS WITH (STOCHASTIC) PDE ORIGINS: BALANCED BLACK-BOX STOPPING TESTS ( abstract ) |
| 10:50 | Multilevel Monte Carlo Methods with Sample Reuse and Automatic Coarse Grid Generation using Algebraic Multigrid ( abstract ) |
| 11:15 | Multilevel sampling methods for the quantification of uncertainties within the Bayesian approach to inverse problems ( abstract ) |
| 11:40 | Multifidelity Optimization Under Uncertainty ( abstract ) |
16:30-18:35 Session 7A: Inverse Problems & Regularization. Room: Bighorn B.
Chair:
| 16:30 | Three dimensional shape reconstruction from liquid displacement using parametric level set methods ( abstract ) |
| 16:55 | IR Tools MATLAB Package for Large-Scale Inverse Problems ( abstract ) |
| 17:20 | Bathymetry estimation from video imagery via the linear dispersion relations and the assimilation of wavenumber observations. ( abstract ) |
| 17:45 | Iterated Conditional Mode algorithm for a Variable splitting and sparsity enforcing priors for linear inverse problems ( abstract ) |
| 18:10 | A non-linear stochastic inverse problem for faults in geophysics ( abstract ) |
16:30-18:35 Session 7B: Nonlinear Solvers. Room: Bighorn C/1.
Chair:
| 16:30 | A Weak Least-Squares Finite Element Method for Hyperbolic Balance Laws ( abstract ) |
| 16:55 | Time-Parallel Simultaneous Optimization with Unsteady PDEs ( abstract ) |
| 17:20 | Convergence Analysis of the Full Approximation Scheme for Nonlinear Problems ( abstract ) |
| 17:45 | Subdivision-Based Nonlinear Multiscale Cloth Simulation ( abstract ) |
| 18:10 | Scalable solution methodologies for computationally challenging flow simulations from the high-order CFD workshop ( abstract ) |
16:30-18:35 Session 7C: Multilevel Solvers. Room: Bighorn C/2.
Chair:
| 16:30 | Local Fourier analysis of BDDC-like algorithms ( abstract ) |
| 16:55 | A multigrid algorithm with subspace correction smoother for grids with arbitrary hanging node configurations ( abstract ) |
| 17:20 | Construction of continuous finite element spaces with arbitrary-level hanging nodes and applications to multigrid algorithms ( abstract ) |
| 17:45 | Algebraic Multigrid Methods, Data Structures and Performance ( abstract ) |
Wednesday, March 28th
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08:00-10:05 Session 8A: Eigenvalues/SVD. Room: Bighorn B.
Chair:
| 08:00 | On inner iterations of Jacobi-Davidson type methods for large SVD computations ( abstract ) |
| 08:25 | Polynomial Preconditioned Arnoldi for Eigenvalues ( abstract ) |
| 08:50 | Combining Refined and Standard/Harmonic Rayleigh-Ritz for Interior Hermitian Eigenvalue Problems ( abstract ) |
08:00-10:05 Session 8B: Helmholtz Solvers. Room: Bighorn C/1.
Chair:
| 08:00 | Interconnected hierarchical rank-structured methods for directly solving and preconditioning the Helmholtz equation ( abstract ) |
| 08:25 | Computing the Eigenvalues of the Dirichlet-to-Neumann Map for Indefinite Helmholtz Equation ( abstract ) |
| 08:50 | Pollution and convergence of numerical solutions of the Helmholtz equation ( abstract ) |
| 09:15 | Iterative methods using deflation for the Helmholtz equation ( abstract ) |
08:00-10:05 Session 8C: Imaging. Room: Bighorn C/2.
Chair:
| 08:00 | Spectral Computed Tomography with Linearization and Preconditioning ( abstract ) |
| 08:25 | Tomographic reconstruction with simultaneous error correction ( abstract ) |
| 08:50 | Randomization for Efficient Reduced Order Models in Diffuse Optical Tomography ( abstract ) |
| 09:15 | Block-Newton Iterative Solvers for Joint Inverse Tumor Growth and Image Registration ( abstract ) |
| 09:40 | Tensor Dictionaries for Image Compression and Deblurring ( abstract ) |
10:25-12:30 Session 9A: Surrogate Models/MOR. Room: Bighorn B.
Chair:
| 10:25 | Direct, Stochastic Analogues to Deterministic Optimization Methods using Statistical Filters ( abstract ) |
| 10:50 | EFFICIENT POD-BASED DEFLATION METHODS FOR THE SOLUTION OF LARGE AND ILL-CONDITIONED LINEAR SYSTEMS ( abstract ) |
| 11:15 | Collocation Methods for Exploring Perturbations in Linear Stability ( abstract ) |
| 11:40 | Projected Nonlinear Least Squares for H2 Model Reduction ( abstract ) |
| 12:05 | Multiscale methods to simulate time-domain geophysical electromagnetic responses ( abstract ) |
10:25-12:30 Session 9B: Asynchronous Solvers. Room: Bighorn C/1.
Chair:
| 10:25 | An overview of the theory of convergence of asynchronous iterations ( abstract ) |
| 10:50 | Asynchronous Domain Decomposition Solvers ( abstract ) |
| 11:15 | An Asynchronous Multigrid Method ( abstract ) |
| 11:40 | Asynchronous Optimized Schwarz methods for Poisson's equation in Rectangular domains ( abstract ) |
| 12:05 | Parallel asynchronous preconditioners for compressible flow problems ( abstract ) |
10:25-12:30 Session 9C: Transport. Room: Bighorn C/2.
Chair:
| 10:25 | Iterative Multifrequency Corrected Implicit Monte Carlo ( abstract ) |
| 10:50 | Analysis of the Application of Multiple Preconditioners for Discrete Ordinates Transport Iterations ( abstract ) |
| 11:15 | A Locally Scaled Least Squares Finite Element Method for the Transport Equation ( abstract ) |
| 11:40 | Improved Compton Scattering Methods for Implicit Monte Carlo (IMC) Radiative Transfer Simulations ( abstract ) |
16:30-18:35 Session 10A: Parallel in Time Solvers. Room: Bighorn B.
Chair:
| 16:30 | An Order N log N Parallel Time-Spectral Solver for Periodic and Quasi-Periodic Problems ( abstract ) |
| 16:55 | Parallel-in-time multigrid with adaptive spatial coarsening for the linear advection and inviscid Burgers equations ( abstract ) |
| 17:20 | Acceleration of Time Parareal Method for Simulation of Dynamics of Power Systems ( abstract ) |
| 17:45 | Convergence of the multigrid reduction in time algorithm for the linear elasticity equations ( abstract ) |
| 18:10 | Multigrid Reduction in Time (MGRIT) for Eddy Current Problems ( abstract ) |
16:30-18:35 Session 10B: Eigenvalues/SVD. Room: Bighorn C/1.
Chair:
| 16:30 | The EVSL package for symmetric eigenvalue problems ( abstract ) |
| 16:55 | Floating Point Analysis for Half-Precision Eigensolvers ( abstract ) |
| 17:20 | Robust computation of the right-most eigenvalues ( abstract ) |
| 17:45 | Unconstrained Functionals for Improved Parallel Scaling of Conjugate Gradient Based Eigensolvers ( abstract ) |
| 18:10 | Does machine learning need the power of iterative methods for the SVD? ( abstract ) |
16:30-18:35 Session 10C: Fluid Mechanics. Room: Bighorn C/2.
Chair:
| 16:30 | Augmented Lagrangian-based preconditioners for steady buoyancy driven flow ( abstract ) |
| 16:55 | Semi-smooth Newton methods for nonlinear complementarity formulation of compositional multiphase flow in porous media ( abstract ) |
| 17:20 | Parallel Simulations of Impinging Jets in Crossflow Using PETSc ( abstract ) |
| 17:45 | High Fidelity Simulations of Biofilm Flow on the Modified Cahn-Hilliard Equation. ( abstract ) |
Thursday, March 29th
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08:00-10:05 Session 11A: MG for Partially Structured Meshes. Room: Bighorn B.
Chair:
| 08:00 | Asynchronous Stencil Computations in dynamically adaptive FAS for AFAC ( abstract ) |
| 08:25 | A non-invasive matrix-based multigrid scheme for partially structured grids ( abstract ) |
| 08:50 | The Method of Local Corrections for Computing Volume Potentials on Locally-Structured Grids ( abstract ) |
| 09:15 | Robust and Scalable Iterative Solvers for Immersed Finite Element Methods ( abstract ) |
| 09:40 | Multigrid algorithms in MueLu for structured grid problems ( abstract ) |
08:00-10:05 Session 11B: Data Science. Room: Bighorn C/1.
Chair:
| 08:00 | The tensor t-function: a definition for functions of third-order tensors ( abstract ) |
| 08:25 | Stable tensor neural networks ( abstract ) |
| 08:50 | Parallel-in-Time for Non-PDE-Based Evolution Problems: Neural Network Training and Powersystems ( abstract ) |
| 09:15 | Approximating trace($L^{\dagger})$ using the Johnson-Lindenstrauss lemma and spectral methods. ( abstract ) |
| 09:40 | Iterative Methods in Sports Ranking ( abstract ) |
08:00-10:05 Session 11C: Fluid Mechanics. Room: Bighorn C/2.
Chair:
| 08:00 | Low-Order Finite Element Preconditioner for High-Order Spectral Element Pressure Solver for the Navier-Stokes Equations ( abstract ) |
| 08:25 | Block Preconditioners for Two-Phase Incompressible Navier-Stokes Flow ( abstract ) |
| 08:50 | Efficient Linear Solvers for Two-Phase Navier-Stokes Equations in Free-Surface Models ( abstract ) |
| 09:15 | Preconditioners for non-isothermal flow through porous media ( abstract ) |
| 09:40 | Fast algorithms for the dense matrices arising from the Method of Regularized Stokeslets ( abstract ) |
10:25-12:30 Session 12A: MG for Non-symmetric Problems. Room: Bighorn B.
Chair:
| 10:25 | AMG smoothers for Maxwell's equations ( abstract ) |
| 10:50 | A Residual Smoothing Strategy for Accelerating Newton Method Continuation ( abstract ) |
| 11:15 | Multigrid Methods for flows in porous media ( abstract ) |
| 11:40 | A Geometric Multigrid Method for Locking-Free, Divergence-Conforming Isogeometric Discretizations of Linear Elasticity ( abstract ) |
| 12:05 | aSP-AMG: a novel adaptive algebraic multigrid method for ill-conditioned problems. ( abstract ) |
10:25-12:30 Session 12B: Sparse Linear Solvers. Room: Bighorn C/1.
Chair:
| 10:25 | Convergence analysis of Anderson-type acceleration of Richardson's iteration ( abstract ) |
| 10:50 | A block Gauss-Seidel/Jacobi preconditioner for heterogeneous many-core architecture ( abstract ) |
| 11:15 | Iterative Method suggestion techniques for sparse linear systems ( abstract ) |
| 11:40 | High Performance Block Incomplete LU Factorization And Its Applications ( abstract ) |
| 12:05 | Multilevel Incomplete LU-Factorization Preconditioner for Predominantly Symmetric Systems ( abstract ) |
10:25-12:30 Session 12C: Earth Systems. Room: Bighorn C/2.
Chair:
| 10:25 | A partitioned method for interface problems based on a primal Schur complement ( abstract ) |
| 10:50 | Mesh-tying via multiple-control PDE-constrained optimization and GMLS function reconstruction ( abstract ) |
| 11:15 | Adaptive Solution Transfer for Nonsmooth Functions Between Nonmatching Meshes ( abstract ) |
| 11:40 | Optimization-based, property preserving finite element methods for transport equations ( abstract ) |
| 12:05 | Preconditioned Iterative techniques for geophysical electromagnetic problems ( abstract ) |
16:30-18:10 Session 13: Student Competition Winners.
Chair:
| 16:30 | A Golub-Kahan Davidson Method for Accurately Computing Singular Triplets of Large Sparse Matrices ( abstract ) |
| 16:55 | An Adaptive Unsmoothed Aggregation Multigrid Method Based on Path Coverings ( abstract ) |
| 17:20 | Low-Rank Solution Methods for Stochastic Eigenvalue Problems ( abstract ) |
Friday, March 30th
View this program: with abstractssession overviewtalk overview
08:00-10:05 Session 14A: Multilevel Solvers. Room: Bighorn B.
Chair:
| 08:00 | Two-level Fourier analysis of multigrid for higher-order finite-element methods ( abstract ) |
| 08:25 | Improving the Performance of Line Relaxation in BoxMG ( abstract ) |
| 08:50 | LFA Lab - Local Fourier Analysis including periodic stencils in Python ( abstract ) |
| 09:15 | A Posteriori Error Estimators for the Frank-Oseen Liquid Crystal Model ( abstract ) |
| 09:40 | Iterative Algebraic Smoothing Aggregation Multiscale Solver ( abstract ) |
08:00-10:05 Session 14B: Multi-physics EM/Fluid Plasma. Room: Bighorn C/1.
Chair:
| 08:00 | Conjugate gradient for nonsingular saddle-point systems with a highly singular leading block ( abstract ) |
| 08:25 | A 6th order finite volume multigrid Poisson solver ( abstract ) |
| 08:50 | Robust and Scalable Preconditioning of a Newton-Krylov Solver for All-Speed Melt Pool Flow Physics ( abstract ) |
| 09:15 | A Domain Decomposition Method for efficient and accurate simulations of wave scattering ( abstract ) |
| 09:40 | On Scalable Block Preconditioning of Multifluid Electromagnetic Plasma Systems* ( abstract ) |
08:00-10:05 Session 14C: Saddle Point/Indefinite Solvers. Room: Bighorn C/2.
Chair:
| 08:00 | New stabilized discretization and preconditioner for poroelastic equations ( abstract ) |
| 08:25 | A Relaxed Physical Factorization preconditioner for mixed finite element coupled poromechanics. ( abstract ) |
| 08:50 | A Tridiagonalization Method for Symmetric and Quasi-Definite Saddle-Point Systems ( abstract ) |
| 09:15 | An inner-outer iterations approach based on the Golub-Kahan bidiagonalization method applied to saddle point problems ( abstract ) |
10:25-12:30 Session 15A: Applications. Room: Bighorn B.
Chair:
| 10:25 | An implicit approach to phase field modeling of solidification for additively manufactured materials ( abstract ) |
| 10:50 | Fixed-point iterative solution of the microlaser mode equation using a black-box Maxwell's equations solver via implicit Newton step calculation ( abstract ) |
| 11:15 | Multilevel methods for the optimal control of elliptic equations with stochastic coefficients ( abstract ) |
| 11:40 | Optimal-order preconditioners for the reformulated Morse-Ingard equations ( abstract ) |
10:25-12:30 Session 15B: Numerical Linear Algebra. Room: Bighorn C/1.
Chair:
| 10:25 | Numerical methods for large-scale Lyapunov equations with symmetric banded data ( abstract ) |
| 10:50 | Propagation of Compression Error of ZFP with Fixed Precision for Floating-Point Data in Iterative Methods ( abstract ) |
| 11:15 | Multigrid Optimization over Graph Lineages, with Applications to ANN Training ( abstract ) |