Works Published in 2021
Displaying works 101 - 120 of 121 in total
Sorted by most recent date added to the index first, which may not be the same as publication date order.
2021 journal article
Detecting Framing Changes in Topical News
IEEE TRANSACTIONS ON COMPUTATIONAL SOCIAL SYSTEMS, 8(3), 780–791.
author keywords: Obesity; Market research; Benchmark testing; Media; Current measurement; Standards; Sociology; Framing; news media
TL;DR:
This article systematizes the discovery of framing changes through a fully unsupervised computational method that seeks to isolate framing change trends over several years, and highlights the predictive utility of framing change detection, by identifying two domains in which framing changes foreshadowed substantial legislative activity, or preceded judicial interest.
(via Semantic Scholar)
UN Sustainable Development Goal Categories
16. Peace, Justice and Strong Institutions
(OpenAlex)
Sources: ORCID, Web Of Science, NC State University Libraries
Added: March 16, 2021
2021 journal article
Fault-Tolerant Attitude Control for Rigid Spacecraft Without Angular Velocity Measurements
IEEE TRANSACTIONS ON CYBERNETICS, 51(3), 1216–1229.
author keywords: Space vehicles; Actuators; Angular velocity; Observers; Attitude control; Velocity measurement; Fault tolerance; Fault-tolerant control (FTC); finite-time observer; neural networks (NNs); rigid spacecraft attitude control
TL;DR:
A fault-tolerant control scheme is proposed for the rigid spacecraft attitude control system subject to external disturbances, multiple system uncertainties, and actuator faults and it is shown that the attitude orientations converge to the desired values exponentially.
(via Semantic Scholar)
UN Sustainable Development Goal Categories
11. Sustainable Cities and Communities
(Web of Science)
Source: Web Of Science
Added: March 15, 2021
2021 journal article
Modeling and Control of Drill-String System With Stick-Slip Vibrations Using LPV Technique
IEEE TRANSACTIONS ON CONTROL SYSTEMS TECHNOLOGY, 29(2), 718–730.
author keywords: Drill-string system; gain-scheduled control; linear parameter-varying (LPV) system; multi-degree-of-freedom (DOF) model; stick-slip vibration
TL;DR:
A systematic linear parameter-varying (LPV) model and a gain-scheduled control methodology for drill- string systems are proposed to analyze drill-string dynamics and suppress stick-slip vibrations, finally achieving efficient drilling.
(via Semantic Scholar)
UN Sustainable Development Goal Categories
11. Sustainable Cities and Communities
(Web of Science)
16. Peace, Justice and Strong Institutions
(OpenAlex)
Source: Web Of Science
Added: March 15, 2021
2021 journal article
A little bit flexibility on headway distribution is enough: Data-driven optimization of subway regenerative energy
INFORMATION SCIENCES, 554, 276–296.
author keywords: Subway; Regenerative energy; ATO data; Headway distribution; Improved genetic algorithm
TL;DR:
A new optimization method driven by real ATO data for maximizing subway regenerative energy based on a concept of uniformity to measure the homogeneous degree of headway distribution is developed and an improved genetic algorithm with multiple crossover and mutation operators to search for near-optimal solutions is proposed.
(via Semantic Scholar)
UN Sustainable Development Goal Categories
7. Affordable and Clean Energy
(OpenAlex)
11. Sustainable Cities and Communities
(Web of Science)
Source: Web Of Science
Added: March 15, 2021
2021 journal article
Partially penalized IFE methods and convergence analysis for elasticity interface problems
Journal of Computational and Applied Mathematics.
Source: ORCID
Added: March 2, 2021
2021 journal article
Forecasting US Yield Curve Using the Dynamic Nelson-Siegel Model with Random Level Shift Parameters
ECONOMIC MODELLING, 94, 340–350.
author keywords: US treasury yield curves; Dynamic Nelson-Siegel model; Random level shift (RLS); Forecasting
UN Sustainable Development Goal Categories
8. Decent Work and Economic Growth
(Web of Science)
Source: Web Of Science
Added: February 15, 2021
2021 journal article
ANDERSON ACCELERATION FOR A CLASS OF NONSMOOTH FIXED-POINT PROBLEMS
SIAM JOURNAL ON SCIENTIFIC COMPUTING, 43(5), S1–S20.
author keywords: Key words; nonsmooth equatioins; Anderson acceleration; integral equations; nonlinear equations; fixed-point problems
TL;DR:
It is proved that convergence of Anderson acceleration for a class of nonsmooth fixed-point problems for which the nonlinearities can be split into a smooth contractive part and a nonsm smooth part which has a smoothcontractive part.
(via Semantic Scholar)
Sources: ORCID, Web Of Science, NC State University Libraries
Added: January 21, 2021
2021 journal article
The local tangential lifting method for moving interface problems on surfaces with applications
JOURNAL OF COMPUTATIONAL PHYSICS, 431.
author keywords: Surface and evolving surface PDEs; Local tangential lifting method; Moving interface on surface; Dendritic solidification; Front tracking method; Discrete delta function on surface
Sources: ORCID, Web Of Science, NC State University Libraries
Added: January 20, 2021
2021 journal article
Loss rate forecasting framework based on macroeconomic changes: Application to US credit card industry
EXPERT SYSTEMS WITH APPLICATIONS, 165.
Contributors: S. Taghiyeh n, D. Lengacher* & R. Handfield n
author keywords: Expert system; Time series forecasting; Loss forecasting; Macroeconomic indicators; Financial industry
TL;DR:
The proposed expert system gives a holistic view of the economy to the practitioners in the credit card industry and helps them to see the impact of different macroeconomic conditions on their future loss.
(via Semantic Scholar)
www.ncbi.nlm.nih.gov (repository)
Sources: Web Of Science, NC State University Libraries, ORCID
Added: January 19, 2021
2021 journal article
A framework for designing and evaluating realistic blockchain-based local energy markets
APPLIED ENERGY, 281.
author keywords: Transactive energy; Local energy market; Blockchain; Decentralized market; Peer-to-peer trading; Renewable energy
TL;DR:
This work identifies the design space that the blockchain layer introduces, and analyzes how the design choices made therein affect the performance, governance, and degree of decentralization of local energy markets running on blockchains.
(via Semantic Scholar)
UN Sustainable Development Goal Categories
7. Affordable and Clean Energy
(OpenAlex)
Source: Web Of Science
Added: December 11, 2020
2021 journal article
Staffing many-server queues with autoregressive inputs
NAVAL RESEARCH LOGISTICS, 68(3), 312–326.
author keywords: autocorrelation; heavy‐ traffic approximations; many‐ server queues; mean‐ reverting process; non‐ Poisson arrivals; optimal staffing; parameter uncertainty; queues with customer abandonment
TL;DR:
A multiserver queueing system where customer arrivals follow a doubly stochastic Poisson point process whose intensities are driven by a Cox–Ingersoll–Ross (CIR) process is studied, finding that, in order to achieve the designated service level, such an autoregressive feature in the arrival model translates into notable adjustment in the staffing formula, and such an adjustment can be fully characterized by the parameters of the new arrival model.
(via Semantic Scholar)
UN Sustainable Development Goal Categories
11. Sustainable Cities and Communities
(Web of Science)
Source: Web Of Science
Added: November 30, 2020
2021 journal article
Bayesian inference and uncertainty propagation using efficient fractional-order viscoelastic models for dielectric elastomers
JOURNAL OF INTELLIGENT MATERIAL SYSTEMS AND STRUCTURES, 32(4), 486–496.
author keywords: Fractional derivative; Riemann– Liouville; dielectric elastomers; viscoelasticity; Bayesian inference; uncertainty propagation
UN Sustainable Development Goal Categories
3. Good Health and Well-being
(Web of Science)
Sources: ORCID, Web Of Science, NC State University Libraries
Added: November 10, 2020
2021 journal article
Non-parallel hyperplanes ordinal regression machine
KNOWLEDGE-BASED SYSTEMS, 216.
author keywords: Ordinal regression; Support vector machine; Twin support vector machine; Non-parallel hyperplanes ordinal regression machine
TL;DR:
The results show that the approach NPHORM is comparable with the other SVM-based approaches, especially in real ordinal regression datasets, and outperforms the deep learning methods on MAE.
(via Semantic Scholar)
UN Sustainable Development Goal Categories
3. Good Health and Well-being
(Web of Science)
Sources: ORCID, Web Of Science, NC State University Libraries
Added: November 10, 2020
2021 journal article
Efficient algorithms for finding2-mediansof a tree
NETWORKS, 77(3), 383–402.
author keywords: 2-median; binary search; linear time; priority queue; sorting; trees
TL;DR:
A framework that unifies all efficient algorithms for the 2‐median problem on trees is presented, which isolates the nonlinear part of the computation so that future time‐bound improvements are easily incorporated.
(via Semantic Scholar)
Sources: Web Of Science, ORCID
Added: October 5, 2020
2021 journal article
Partially penalized IFE methods and convergence analysis for elasticity interface problems
JOURNAL OF COMPUTATIONAL AND APPLIED MATHEMATICS, 382.
author keywords: Elasticity interface problems; Immersed finite element; Discontinuous coefficients; Coercivity; Inf-sup condition; Error estimates
TL;DR:
Through verifying the inverse trace inequality on the interface edges, the optimal convergence in the energy norm are derived and a new test function is constructed to obtain the discrete inf-sup condition of the penalty-free nonsymmetric PPIFEM and is utilized in the proof of the optimal converge.
(via Semantic Scholar)
Sources: Web Of Science, NC State University Libraries
Added: September 14, 2020
2021 journal article
Radiation Source Localization Using Surrogate Models Constructed from 3-D Monte Carlo Transport Physics Simulations
NUCLEAR TECHNOLOGY, 207(1), 37–53.
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
3. Good Health and Well-being
(Web of Science)
11. Sustainable Cities and Communities
(OpenAlex)
Source: Web Of Science
Added: July 13, 2020
2021 journal article
A Neural Network-Based Policy Iteration Algorithm with Global H-2-Superlinear Convergence for Stochastic Games on Domains
FOUNDATIONS OF COMPUTATIONAL MATHEMATICS, 21(2), 331–374.
author keywords: Hamilton-Jacobi-Bellman-Isaacs equations; Neural networks; Policy iteration; Inexact semismooth Newton method; Global convergence; q-superlinear convergence
TL;DR:
It is established that the numerical solutions converge globally in the H2, and it is demonstrated that this convergence is superlinear, by interpreting the algorithm as an inexact Newton iteration for the HJBI equation.
(via Semantic Scholar)
Source: Web Of Science
Added: June 8, 2020
2021 journal article
Constraint violation reduction search for 0-1 mixed integer linear programming problems
ENGINEERING OPTIMIZATION, 53(4), 609–626.
author keywords: Primal heuristic; MILP; resource constrained project scheduling; MIPLIB; capacitated warehouse location
TL;DR:
This article presents Constraint Violation Reduction Search (CVRS), a primal heuristic for 0–1 Mixed Integer Linear Programming (MILP) problems that constructs a series of MILP subproblems by adding artificial variables representing the amount by which each constraint is violated and minimizing their sum in the objective function.
(via Semantic Scholar)
Source: Web Of Science
Added: May 8, 2020
2021 journal article
Improving chemotherapy infusion operations through the simulation of scheduling heuristics: a case study
Health Systems, 2, 1–16.
author keywords: Discrete event simulation (DES); scheduling; healthcare; chemotherapy
TL;DR:
The case study examines the impact of altering the current schedule, where all patients arrive at 8:00 AM, to a schedule that assigns patients to two or three different appointment times based on the expected length of their chemotherapy infusion.
(via Semantic Scholar)
UN Sustainable Development Goal Categories
3. Good Health and Well-being
(Web of Science; OpenAlex)
Source: ORCID
Added: February 3, 2020
2021 journal article
Assessing uncertainty and risk in an expeditionary military logistics network
The Journal of Defense Modeling and Simulation: Applications, Methodology, Technology, 7, 154851291986059.
author keywords: Logistics; capacity planning; queueing; networks; forecasting; risk analysis; nonstationary arrival process; time-dependent arrival rate; dispersion ratio; index of dispersion for counts
UN Sustainable Development Goal Categories
11. Sustainable Cities and Communities
(Web of Science)
Source: ORCID
Added: July 23, 2019
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