Works Published in 2020

search works

Displaying works 61 - 80 of 164 in total

Sorted by most recent date added to the index first, which may not be the same as publication date order.

2020 journal article

A Distributed Active Subspace Method for Scalable Surrogate Modeling of Function Valued Outputs

JOURNAL OF SCIENTIFIC COMPUTING, 85(2).

By: H. Guy n, A. Alexanderian n & M. Yu*

author keywords: Distributed active subspace; Karhunen– Loè ve expansion; Dimension reduction; Function valued outputs; Porous medium flow; Biotransport
TL;DR: An error estimate is provided that quantifies errors due to active subspace projection and truncated KL expansion of the output of the model output and the numerical performance of the surrogate modeling approach is demonstrated with an application example from biotransport. (via Semantic Scholar)
Source: Web Of Science
Added: November 24, 2020

2020 journal article

Characterization of Blood Pressure and Heart Rate Oscillations of POTS Patients via Uniform Phase Empirical Mode Decomposition

IEEE TRANSACTIONS ON BIOMEDICAL ENGINEERING, 67(11), 3016–3025.

author keywords: Heart rate; Oscillators; Baroreflex; Blood pressure; Empirical mode decomposition; Measurement; Aging; Empirical mode decomposition (EMD); head-up tilt (HUT); postural orthostatic tachycardia syndrome (POTS); uniform phase empirical mode decomposition (UPEMD); clustering
MeSH headings : Baroreflex; Blood Pressure; Heart Rate; Humans; Postural Orthostatic Tachycardia Syndrome; Tilt-Table Test
TL;DR: The 0.1 Hz phase response and oscillation amplitude metrics provide new markers that can improve Postural Orthostatic Tachycardia Syndrome diagnostic augmenting the existing diagnosis protocol only analyzing the change in HR. (via Semantic Scholar)
Source: Web Of Science
Added: November 24, 2020

2020 journal article

Probabilistic Error Analysis for Inner Products

SIAM Journal on Matrix Analysis and Applications, 41(4), 1726–1741.

By: I. Ipsen* & H. Zhou*

author keywords: roundoff errors; random variables; concentration bounds; martingale; Azuma's inequality
TL;DR: Probabilistic perturbation bounds as well as probabilistic roundoff error bounds for the sequential accumulation of the inner product are derived, giving a quantitative confirmation of Wilkinson's intuition. (via Semantic Scholar)
Source: ORCID
Added: November 18, 2020

2020 conference paper

Certified Hermite Matrices from Approximate Roots - Univariate Case

Mathematical Aspects of Computer and Information Sciences, 3–9.

By: T. Ayyildiz Akoglu & A. Szanto

Source: ORCID
Added: November 13, 2020

2020 article

Local Convergence of an AMP Variant to the LASSO Solution in Finite Dimensions

(2020, July 18).

Jack Silverstein

Source: ORCID
Added: November 7, 2020

2020 article

Smooth Points on Semi-algebraic Sets

(2020, February 11).

Agnes Szanto

Source: ORCID
Added: November 6, 2020

2020 conference paper

Punctual Hilbert scheme and certified approximate singularities

Proceedings of the 45th International Symposium on Symbolic and Algebraic Computation.

By: A. Mantzaflaris*, B. Mourrain* & A. Szanto n

TL;DR: A new method to certify that a nearby polynomial system has a singular isolated root and it is found that some of its strata can be rationally parametrized and exploit these parametrizations in the certification. (via Semantic Scholar)
Source: ORCID
Added: November 6, 2020

2020 conference paper

Certified Hermite Matrices from Approximate Roots - Univariate Case

Mathematical Aspects of Computer and Information Sciences, 3–9.

By: T. Akoglu* & A. Szanto n

TL;DR: This study describes a symbolic-numeric algorithm to construct a rational matrix, called Hermite matrix, from the approximate roots and certify that this matrix is the true Hermite matrices corresponding to the roots \(V({\mathcal I})\). (via Semantic Scholar)
Source: ORCID
Added: November 6, 2020

2020 journal article

MULTISCALE ANALYSIS OF ACCELERATED GRADIENT METHODS

SIAM JOURNAL ON OPTIMIZATION, 30(3), 2337–2354.

By: M. Farazmand*

author keywords: convex optimization; accelerated gradient methods; invariant manifolds; singular perturbation theory
TL;DR: It is shown that, under certain conditions, the accelerated gradient flow possesses an attracting invariant slow manifold to which the trajectories of the flow converge asymptotically, and a general explicit expression in the form of functional series expansions that approximates theslow manifold to any arbitrary order of accuracy is obtained. (via Semantic Scholar)
Sources: Web Of Science, ORCID
Added: October 26, 2020

2020 journal article

Deep learning-enabled analysis reveals distinct neuronal phenotypes induced by aging and cold-shock

BMC BIOLOGY, 18(1).

By: S. Saberi-Bosari n, K. Flores n & A. San-Miguel n

author keywords: Deep learning; Convolutional neural networks; Neurodegeneration; Neuronal beading; Aging; Machine learning; Phenotyping; C; elegans
MeSH headings : Aging / physiology; Animals; Caenorhabditis elegans / physiology; Cold-Shock Response / physiology; Deep Learning; Neurons / physiology; Phenotype
TL;DR: Deep learning is applied to perform quantitative image-based analysis of complex neurodegeneration patterns exhibited by the PVD neuron in C. elegans and revealed that distinct patterns of morphological alteration are induced by aging and cold-shock, suggesting different mechanisms at play. (via Semantic Scholar)
Source: Web Of Science
Added: October 26, 2020

2020 journal article

Classification of some subclasses of 6-dimensional nilpotent Leibniz algebras

TURKISH JOURNAL OF MATHEMATICS, 44(5), 1925–1940.

By: I. Demir*

author keywords: Leibniz algebra; nilpotency; classification
UN Sustainable Development Goal Categories
14. Life Below Water (Web of Science)
Source: Web Of Science
Added: October 26, 2020

2020 journal article

SHARP 2-NORM ERROR BOUNDS FOR LSQR AND THE CONJUGATE GRADIENT METHOD

SIAM JOURNAL ON MATRIX ANALYSIS AND APPLICATIONS, 41(3), 1183–1207.

By: E. Hallman*

author keywords: LSQR; least-squares problem; sparse matrix; Krylov subspace method; Golub-Kahan process; conjugate gradient method; stopping criteria; iterative method
TL;DR: This work considers the iterative method LSQR for solving $\min_x |Ax-b|_2$ and finds that at every step it produces an iterate that minimizes the norm of the norm. (via Semantic Scholar)
Source: Web Of Science
Added: October 26, 2020

2020 article

Radiation Source Localization Using Surrogate Models Constructed from 3-D Monte Carlo Transport Physics Simulations

NUCLEAR TECHNOLOGY.

By: P. Miles n, J. Cook n, Z. Angers*, C. Swenson*, B. Kiedrowski*, J. Mattingly n, R. Smith n

author keywords: Radiation detection; inverse problem; Bayesian inference; MCNP; surrogate modeling
TL;DR: The Monte Carlo N-Particle code is employed to provide high-fidelity simulations of radiation transport within an urban domain to develop efficient and accurate surrogate models of the detector responses that provide an efficient framework for Bayesian inference and experimental design. (via Semantic Scholar)
UN Sustainable Development Goal Categories
11. Sustainable Cities and Communities (OpenAlex)
Source: ORCID
Added: October 25, 2020

2020 journal article

After the honeymoon, the divorce: Unexpected outcomes of disease control measures against endemic infections

PLOS Computational Biology, 16(10), e1008292.

Ed(s): R. Antia

MeSH headings : Animals; Basic Reproduction Number; COVID-19; COVID-19 Vaccines; Communicable Disease Control / methods; Coronavirus Infections / prevention & control; Culicidae; Dengue Vaccines / therapeutic use; Endemic Diseases / prevention & control; Health Policy; Humans; Immunization Programs; Insect Vectors; Models, Theoretical; Pandemics / prevention & control; Pneumonia, Viral / prevention & control; Public Health; Rubella / prevention & control; Rubella Vaccine / therapeutic use; Seasons; Severe Dengue / prevention & control; Viral Vaccines / therapeutic use
TL;DR: It is shown that deployment of control can lead to a larger total number of infections, counting from the time that control started, than without any control – the divorce effect. (via Semantic Scholar)
Source: ORCID
Added: October 20, 2020

2020 journal article

Nonzero-Sum Stochastic Differential Reinsurance Games with Jump-Diffusion Processes

JOURNAL OF OPTIMIZATION THEORY AND APPLICATIONS, 187(2), 566–584.

By: N. Medhin n & C. Xu n

author keywords: Hamilton-Jacobi-Bellman equation; Stochastic differential game; Nonzero-sum reinsurance game; Jump-diffusion process
TL;DR: A model including controls for the market share, investment, and reinsurance policies is considered, and closed-form solutions for optimal strategies are derived by applying the Hamilton–Jacobi–Bellman equation. (via Semantic Scholar)
UN Sustainable Development Goal Categories
Source: Web Of Science
Added: October 19, 2020

2020 journal article

Large-Scale Dynamics of Self-propelled Particles Moving Through Obstacles: Model Derivation and Pattern Formation

BULLETIN OF MATHEMATICAL BIOLOGY, 82(10).

By: P. Aceves-Sanchez n, P. Degond*, E. Keaveny*, A. Manhart*, S. Merino-Aceituno* & D. Peurichard*

author keywords: Self-propelled particles; Hydrodynamic limit; Pattern formation; Stability analysis; Gradient flow; Non-local interactions
MeSH headings : Mathematical Concepts; Models, Theoretical; Molecular Dynamics Simulation; Particle Size
TL;DR: The macroscopic equations reveal that the obstacle interactions induce short-ranged SPP aggregation, irrespective of whether obstacles and SPPs are attractive or repulsive. (via Semantic Scholar)
Source: Web Of Science
Added: October 12, 2020

2020 journal article

Rademacher type and Enflo type coincide

ANNALS OF MATHEMATICS, 192(2), 665–678.

By: P. Ivanisvili n, R. Handel* & A. Volberg*

author keywords: Rademacher type; Enflo type; Pisier's inequality; Banach spaces
Source: Web Of Science
Added: October 12, 2020

2020 article

Lifelong Analysis of Key Aging Genes as Determinants of Lifespan in <it>C</it>. <it>elegans</it>

San Miguel, A., Ramirez, J., & Flores, K. (2020, April). FASEB JOURNAL, Vol. 34.

TL;DR: This work presents a system that enables in vivo tracking the endogenous spatiotemporal activity of key aging genes throughout C. elegans lifespan using an integrative experimental platform based on microfluidics, computer vision, and tagging of endogenous genes via CRISPR/Cas9 genetic engineering approaches. (via Semantic Scholar)
Source: Web Of Science
Added: October 12, 2020

2020 journal article

Regular potential games

Games and Economic Behavior, 124, 432–453.

By: B. Swenson*, R. Murray n & S. Kar*

author keywords: Game theory; Potential games; Generic games; Regular equilibria; Multi-agent systems
TL;DR: It is shown that almost all potential games are regular, except for a closed subset with Lebesgue measure zero, which proves an oddness result for potential games: in almost all possible games, the number of Nash equilibrium strategies is finite and odd. (via Semantic Scholar)
UN Sustainable Development Goal Categories
10. Reduced Inequalities (Web of Science)
Source: ORCID
Added: October 2, 2020

2020 journal article

Learning Equations from Biological Data with Limited Time Samples

BULLETIN OF MATHEMATICAL BIOLOGY, 82(9).

By: J. Nardini n, J. Lagergren n, A. Hawkins-Daarud*, L. Curtin*, B. Morris*, E. Rutter*, K. Swanson*, K. Flores n

author keywords: Equation learning; Numerical differentiation; Sparse regression; Model selection; Partial differential equations; Parameter estimation; Population dynamics; Glioblastoma multiforme
MeSH headings : Computational Biology / methods; Glioblastoma; Humans; Learning; Mathematical Concepts; Models, Biological; Nonlinear Dynamics
TL;DR: This work presents an equation learning methodology comprised of data denoising, equation learning, model selection and post-processing steps that infers a dynamical systems model from noisy spatiotemporal data and highlights how these results are informative for data-driven modeling-based tumor invasion predictions. (via Semantic Scholar)
Source: Web Of Science
Added: September 28, 2020

Citation Index includes data from a number of different sources. If you have questions about the sources of data in the Citation Index or need a set of data which is free to re-distribute, please contact us.

Certain data included herein are derived from the Web of Science© and InCites© (2024) of Clarivate Analytics. All rights reserved. You may not copy or re-distribute this material in whole or in part without the prior written consent of Clarivate Analytics.