Namur Institute for Complex Systems

  • 5000

    Belgium

Research Output 1977 2019

2019
Open Access
File
1 Downloads (Pure)

Bernstein Concentration Inequalities for Tensors via Einstein Products

Luo, Z., Qi, L. & Toint, P., 11 Feb 2019, Arxiv, 12 p.

Research output: Working paper

File
Bernstein Inequality
Concentration Inequalities
Albert Einstein
Tensors
Tensor
Neurosciences
Causality
Mental Health
Research Personnel

Dictionary learning in Extended Dynamic Mode Decomposition using a reservoir computer

Gulina, M. & Mauroy, A., 19 Mar 2019, 38th Benelux Meeting on Systems and Control: Book of Abstracts. p. 42 211 p.

Research output: Contribution in Book/Catalog/Report/Conference proceedingConference contribution

Glossaries
Nonlinear systems
Decomposition
File
Constrained optimization
Constrained Optimization
Sparsity
Higher Order
Evaluation
1 Downloads (Pure)

Influence of fake news in Twitter during the 2016 US presidential election

Bovet, A. & Makse, H. A., 2 Jan 2019, In : Nature Communications. 10, 1, p. 7 7 p., 7.

Research output: Contribution to journalArticle

Open Access
File
Spreaders
news
Information Services
Causality
outlets
1 Downloads (Pure)
File
Derivatives
Evaluation
Adaptive algorithms
Nonconvex Minimization
Inexact Methods

Numerical testing by a transfer-matrix technique of Simmons' equation for the local current density in metal-vacuum-metal junctions

Mayer, A., Mousa, M., Hagmann, M. & Forbes, R., 2019, In : Jordan Journal of Physics. 12, 1, p. 63-77

Research output: Contribution to journalArticle

Open Access
File
Open Access
universe
big bang cosmology
gold
Jordan
axioms

Partially separable convexly-constrained optimization with non-Lipschitzian singularities and its complexity

Chen, X., Toint, P. & Wang, H., 15 Apr 2019, In : SIAM Journal on Optimization. 29, 1, p. 874-903 30 p.

Research output: Contribution to journalArticle

Open Access
File
Constrained optimization
Constrained Optimization
Singularity
Objective function
Regularization
Supervised learning
Robustness (control systems)
Parameter estimation
Feature extraction
Computational complexity

Stressor fluxes alter the relationship between beta-diversity and regional productivity

De Raedt, J., Baert, J., Janssen, CR. & De Laender, F., 2019, (Accepted/In press) In : OIKOS. 50 p.

Research output: Contribution to journalArticle

herbicides
algae
productivity
ecosystems
organisms

The dimensionality of stability depends on disturbance type

Radchuk, V., De Laender, F., Sarmento Cabral, J., Boulangeat, I., Crawford, M., De Raedt, J., Bohn, F., Scherer, C., Svenning, J-C., Thonicke, K., Schurr, F., Grimm, V. & Kramer-Schadt, S., 2019, (Accepted/In press) In : Ecology Letters. 40 p.

Research output: Contribution to journalArticle

disturbance
ecosystems
ecological stability
species diversity
ecosystem
2 Downloads (Pure)

Universal regularization methods -- varying the power, the smoothness and the accuracy

Cartis, C., Gould, N. I. M. & Toint, P., 6 Mar 2019, SIAM Journal on Optimization, 29, 1, p. 595-615.

Research output: Contribution to specialist publicationArticle

Open Access
File
Regularization Method
Smoothness
Regularization
Exponent
Gradient vector
2018

Adaptive regularization algorithms with inexact evaluations for nonconvex optimization

Bellavia, S., Gurioli, G., Morini, B. & Toint, P., 12 Nov 2018, Arxiv, 32 p.

Research output: Working paper

File
Nonconvex Optimization
Adaptive algorithms
Regularization
Derivatives
Derivative
8 Downloads (Pure)
Open Access
File
group velocity
electromagnetic fields
photonics
Maxwell equation
crystals
4 Downloads (Pure)

A minimally invasive neurostimulation method for controlling abnormal synchronisation in the neuronal activity

Asllani, M., Expert, P. & Carletti, T., 9 Jul 2018, In : PLOS Computational Biology. 14, 7, 18 p., e1006296.

Research output: Contribution to journalArticle

Open Access
File
Synchronization
brain
Neuron
neurons
group process
7 Downloads (Pure)

A multi-scale fine-grained LUTI model to simulate land use scenarios in Luxembourg

Gerber, P., CARUSO, G., Cornelis, É. & MÉDARD de CHARDON, C., 22 Feb 2018, In : Journal of Transport and Land Use. 11, 1, p. 255-272 17 p.

Research output: Contribution to journalArticle

Open Access
File
Luxembourg
Land use
land use
scenario
real estate market
5 Downloads (Pure)

A note on preconditioning weighted linear least-squares with consequences for weakly constrained variational data assimilation

Gratton, S., Selime, G., Simon, E. & Toint, P., Apr 2018, In : Quarterly Journal of the Royal Meteorological Society. 144, 712, p. 934-940 7 p.

Research output: Contribution to journalArticle

File
Data Assimilation
Linear Least Squares
Weighted Least Squares
Preconditioning
data assimilation

A note on solving nonlinear optimization problems in variable precision

Gratton, S. & Toint, P., 11 Dec 2018, Arxiv, 11 p.

Research output: Working paper

File
Function evaluation
Energy dissipation
Costs
Experiments

Applications of Leveling Methods to Properties of Small Molecules and Protein Systems

Leherte, L., 2018, Innovations in Computational Chemistry: Theoretical and Quantum Chemistry at the Dawn of the 21st Century. Carbó-Dorca, R. & Chakraborty, T. (eds.). p. 197-248 51 p.

Research output: Contribution in Book/Catalog/Report/Conference proceedingChapter

Multiresolution analysis
Molecules
Crystallography
Ubiquitin
Charge density
Open Access
Global optimization
Evolutionary algorithms
Function evaluation
Costs

Biodiversity effects on ecosystem functioning respond unimodally to environmental stress

Baert, J., Eisenhauer, N., JANSSEN, C. & De Laender, F., 1 Aug 2018, In : Ecology Letters. 21, 8, p. 1191-1199 9 p.

Research output: Contribution to journalArticle

environmental stress
biodiversity
ecosystems
ecosystem
environmental conditions

Bottom-up and top-down control of dispersal across major organismal groups

Fronhofer, E., Legrand, D., Altermatt, F., Ansart, A., Blanchet, S., Bonte, D., Chaine, A., Dahirel, M., De Laender, F., De Raedt, J., di Gesu, L., Jacob, S., Kaltz, O., Laurent, E., Little, C. J., Madec, L., Manzi, F., Masier, S., Pellerin, F., Pennekamp, F. & 5 othersSchtickzelle, N., Therry, L., Vong, A., Winandy, L. & Cote, J., 1 Dec 2018, In : Nature Ecology and Evolution. 2, 12, p. 1859-1863 5 p.

Research output: Contribution to journalArticle

top-down control
bottom-up control
vertebrate
ecology
modeling

Clot waveform analysis for measuring and quantifying fibrin clot formation

Evrard, J., Siriez, R., Themans, P., Laloy, J., Mullier, F., Dogne, J-M. & Douxfils, J., 5 Jul 2018, JTH - Journal of thrombosis and haemostasis: Research and pratice in thrombosis and haemostasis. issue S1 ed. Vol. 2. PB582

Research output: Contribution in Book/Catalog/Report/Conference proceedingConference contribution

Comment: "Generalized Formula for the Electric Tunnel Effect between Similar Electrodes Separated by a Thin Insulating Film" [J. Appl. Phys. 34, 1793 (1963)]

Matthews, N., Hagmann, M. & Mayer, A., 7 Apr 2018, In : Journal of Applied Physics. 123, 13, p. 136101 1 p., 136101.

Research output: Contribution to journalComment/debate

Ecosystems
environmental change
ecosystem
Testing
Biodiversity

Contrasting indirect effects of an ant host on prey-predator interactions of symbiotic arthropods

Parmentier, T., De Laender, F., Wenseleers, T. & Bonte, D., 2018, (Accepted/In press) In : Oecologia. 9 p.

Research output: Contribution to journalArticle

predator-prey interaction
predator-prey relationships
arthropod
ant
arthropods
6 Downloads (Pure)
File
mathematics
research practice
entropy
knowledge
death

Cross-country information transmissions and the role of commodity markets: a multichannel Markov switching approach

Dahlqvist, C-H., 16 Aug 2018, In : PLoS ONE. 13, 8, p. e0202251 e0202251.

Research output: Contribution to journalArticle

products and commodities
markets
Causality
Conveying
Time series

Des mathématiques pour penser... le double?

Lambert, D., 2018, Le double: littérature, arts, cinéma. Nouvelles approches (sous la direction de Erica Durante et Amaury Dehoux). Paris: Honoré Champion, p. 57-72 15 p.

Research output: Contribution in Book/Catalog/Report/Conference proceedingChapter

8 Downloads (Pure)

Desynchronization induced by time-varying network

Lucas, M., Fanelli, D., Carletti, T. & Petit, J., 10 May 2018, In : Europhysics Letters: a letters journal exploring the frontiers of physics . 121, 5, p. 50008p1-p7 7 p., 50008.

Research output: Contribution to journalArticle

Open Access
File
death
theorems
oscillators
analogs
modulation
16 Downloads (Pure)

Determining the number of layers in few-layer graphene by combining Raman spectroscopy and optical contrast

Bayle, M., Reckinger, N., Felten, A., Landois, P., Lancry, O., Dutertre, B., Colomer, J. F., Zahab, A. A., Henrard, L., Sauvajol, J. L. & Paillet, M., 2018, In : Journal of Raman Spectroscopy. 49, 1, p. 36 - 45 10 p.

Research output: Contribution to journalArticle

File
Graphite
Graphene
Raman spectroscopy
Silicon
Lasers

Dual systems identification methods based on Koopman operator theory

Mauroy, A. & Goncalves, J., Sep 2018, Proceedings of the SICE Conference. p. 64-67 4 p.

Research output: Contribution in Book/Catalog/Report/Conference proceedingConference contribution

Identification (control systems)
Glossaries
Parameter estimation
Mathematical operators

Editorial

Sinatra, R. & Lambiotte, R., 1 Jun 2018, In : Advances in Complex Systems. 21, 3-4, 1802001.

Research output: Contribution to journalEditorial

1 Downloads (Pure)

Effects of a herbicide and copper mixture on the quality of marine plankton

Filimonova, V., De Troch, M., Gonçalves, F., Marques, J. C., Marques, S. M., Gonçalves, A. M. M. & De Laender, F., 2018, (Accepted/In press) In : Ecotoxicology and Environmental Safety. 9 p.

Research output: Contribution to journalArticle

Plankton
Copepoda
Diatoms
Herbicides
Copper

Exploring cosmic origins with CORE: The instrument

CORE & Clesse, S., 5 Apr 2018, In : Journal of Cosmology and Astroparticle Physics. 2018, 4, p. 15 015.

Research output: Contribution to journalArticle

polarization
apertures
telescopes
sensitivity
space missions

Exploring cosmic origins with CORE: Cosmological parameters

CORE & Clesse, S., 5 Apr 2018, In : Journal of Cosmology and Astroparticle Physics. 2018, 4, 017.

Research output: Contribution to journalArticle

forecasting
physics
astrophysics
universe
microwaves
1 Downloads (Pure)
Open Access
File
financial institutions
Industry
stock exchange
markets
industry
4 Downloads (Pure)

Global computation of phase-amplitude reduction for limit-cycle dynamics

Mauroy, A. & Mezić, I., 1 Jul 2018, In : Chaos: an interdisciplinary journal of nonlinear science. 28, 7, 23 p., 073108.

Research output: Contribution to journalArticle

File
Limit Cycle
cycles
Eigenvalues and eigenfunctions
Laplace transformation
Harmonic Balance
4 Downloads (Pure)

Homogeneous-per-layer patterns in multiplex networks

Busiello, D. M., Carletti, T. & Fanelli, D., 4 Feb 2018, In : Europhysics Letters. 121, p. 48006-p1 - p7 7 p.

Research output: Contribution to journalArticle

Open Access
File
diffusion coefficient
diagrams
perturbation
6 Downloads (Pure)

Hopping in the Crowd to Unveil Network Topology

Asllani, M., Carletti, T., Di Patti, F., Fanelli, D. & Piazza, F., 9 Apr 2018, In : Physical review letters. 120, 15, 5 p., 158301.

Research output: Contribution to journalLetter

Open Access
File
topology
operators
estimates
1 Downloads (Pure)

Identifying exogenous and endogenous activity in social media

Fujita, K., Medvedev, A., Koyama, S., Lambiotte, R. & Shinomoto, S., 2 Aug 2018, In : ArXiv pre-print. 8 p.

Research output: Contribution to journalArticle

Open Access
File
social network
marketing
time series
social media
method

Inclined asymmetric librations in exterior resonances

Voyatzis, G., Tsiganis, K. & Antoniadou, K. I., 2018, In : Celestial Mechanics and Dynamical Astronomy. 130, 4, 29.

Research output: Contribution to journalArticle

libration
trans-Neptunian objects
Inclined
Orbits
oscillation

Inflation forecasts in the euro area: Are domestic and global factors useful in forecasting the mean and the distribution of euro area inflation?

Bereau, S., Faubert, V. & Schmidt, K., 2018, (Banque de France Working Papers series; no. 663).

Research output: Working paper

Influence of fake and traditional news outlets on Twitter opinion dynamics

Bovet, A. & Makse, H. A., 2018. 1 p.

Research output: Contribution to conferencePoster

3 Downloads (Pure)

Influence of Protein-Solvent Interactions on the Molecular Dynamics of Reduced Point Charge Models of Proteins - COMP5

Leherte, L. & Vercauteren, D., 2018, Abstracts of the 255th Annual Meeting and Exposition of the American Chemical Society. ACS

Research output: Contribution in Book/Catalog/Report/Conference proceedingConference contribution

Open Access
File
Molecular dynamics
Water
Proteins
Atoms
Amino Acids