Publications related to Numeracy

Heat flux variation between neighboring channels in compact minichannel heat exchangers

The channel-to-channel heat flux variation was studied by solving numerically the conjugate, three-dimensional, transient heat transfer problem of louvered fins bounded by multiport aluminum plates. Two different multiport plate configurations (A and B) we ...

2018

Solving the Infinite-horizon Constrained LQR Problem using Accelerated Dual Proximal Methods

Colin Neil Jones, Milan Korda, Georgios Stathopoulos

This work presents an algorithmic scheme for solving the infinite-time constrained linear quadratic regulation problem. We employ an accelerated version of a popular proximal gradient scheme, commonly known as the Forward-Backward Splitting (FBS), and prov ...

Institute of Electrical and Electronics Engineers2017

High-Order Accurate Local Schemes for Fractional Differential Equations

Jan Sickmann Hesthaven, Daniel Henri Baffet

High-order methods inspired by the multi-step Adams methods are proposed for systems of fractional differential equations. The schemes are based on an expansion in a weighted space. To obtain the schemes this expansion is terminated after terms. We study t ...

Springer Verlag2017

Robust Submodular Maximization: A Non-Uniform Partitioning Approach

Volkan Cevher, Jonathan Mark Scarlett, Ilija Bogunovic, Slobodan Mitrovic

We study the problem of maximizing a monotone submodular function subject to a cardinality constraint

k

, with the added twist that a number of items

\tau

from the returned set may be removed. We focus on the worst-case setting considered in Orlin et al ...

2017

Faster Coordinate Descent via Adaptive Importance Sampling

Volkan Cevher, Martin Jaggi, Dmytro Perekrestenko

Coordinate descent methods employ random partial updates of decision variables in order to solve huge-scale convex optimization problems. In this work, we introduce new adaptive rules for the random selection of their updates. By adaptive, we mean that our ...

PMLR2017

The Use of Variable Stiffness Joints in Adaptive Structures

Qian Wang, Gennaro Senatore

Adaptive structures are defined here as structures capable of counteracting actively the effect of external loads via controlled shape changes and redirection of the internal load path. These structures are integrated with sensors (e.g. strain, vision), co ...

2017

Strength evolution of geomaterials in the octahedral plane under non-isothermal and unsaturated conditions

Lyesse Laloui, Victor Vilarrasa Riano, Francesco Parisio

Current geomechanical applications imply non-isothermal processes of unsaturated geomaterials, in most cases following stress paths different than the classical triaxial compression often used in laboratory testing. Though the effects of temperature, sucti ...

American Society of Civil Engineers2017

Fast Computation Of Spectral Projectors Of Banded Matrices

Daniel Kressner, Ana Susnjara

We consider the approximate computation of spectral projectors for symmetric banded matrices. While this problem has received considerable attention, especially in the context of linear scaling electronic structure methods, the presence of small relative s ...

Siam Publications2017

Smooth Primal-Dual Coordinate Descent Algorithms for Nonsmooth Convex Optimization

Volkan Cevher, Quoc Tran Dinh, Ahmet Alacaoglu

We propose a new randomized coordinate descent method for a convex optimization template with broad applications. Our analysis relies on a novel combination of four ideas applied to the primal-dual gap function: smoothing, acceleration, homotopy, and coord ...

2017

Large and reversible shape changes as a strategy for structural adaptation

Ian Smith, Gennaro Senatore, Arka Prabhata Reksowardojo

Adaptive structures are sensed and actuated to perform tasks such as modifying their internal load-path in response to external actions to maintain optimal performance. Shape control and load-path redirection have been investigated to counteract the effect ...

2017

Numeracy

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Heat flux variation between neighboring channels in compact minichannel heat exchangers

Solving the Infinite-horizon Constrained LQR Problem using Accelerated Dual Proximal Methods

High-Order Accurate Local Schemes for Fractional Differential Equations

Robust Submodular Maximization: A Non-Uniform Partitioning Approach

Faster Coordinate Descent via Adaptive Importance Sampling

The Use of Variable Stiffness Joints in Adaptive Structures

Strength evolution of geomaterials in the octahedral plane under non-isothermal and unsaturated conditions

Fast Computation Of Spectral Projectors Of Banded Matrices

Smooth Primal-Dual Coordinate Descent Algorithms for Nonsmooth Convex Optimization

Large and reversible shape changes as a strategy for structural adaptation

Solving the Infinite-horizon Constrained LQR Problem using Accelerated Dual Proximal Methods

Heat flux variation between neighboring channels in compact minichannel heat exchangers

Smooth Primal-Dual Coordinate Descent Algorithms for Nonsmooth Convex Optimization

Faster Coordinate Descent via Adaptive Importance Sampling

Fast Computation Of Spectral Projectors Of Banded Matrices

High-Order Accurate Local Schemes for Fractional Differential Equations

The Use of Variable Stiffness Joints in Adaptive Structures

Strength evolution of geomaterials in the octahedral plane under non-isothermal and unsaturated conditions

Large and reversible shape changes as a strategy for structural adaptation

Robust Submodular Maximization: A Non-Uniform Partitioning Approach