Publicaties
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The Quasi-Newton least squares method: a new and fast secant method analyzed for linear systems Universiteit Gent
We present a new quasi-Newton method that can solve systems of equations of which no information is known explicitly, and which requires no special structure of the system matrix, like positive definiteness or sparseness. The method builds an approximate Jacobian based on input-output combinations of a black-box system, uses a rank-one update of this Jacobian after each iteration and satisfies the secant equation. While it has originally been ...
Determination of the gas-to-liquid partitioning coefficients using a new dynamic absorption method (DynAb method) Universiteit Gent
Self-consistent methods constrained to a fixed number of particles in a given fragment and its relation to the electronegativity equalization method Universiteit Gent
Atomic Velocity Projection Method: A New Analysis Method for Vibrational Spectra in Terms of Internal Coordinates for a Better Understanding of Zeolite Nanogrowth KU Leuven Universiteit Gent
An efficient protocol is presented to identify signals in vibrational spectra of silica oligomers based on theoretical molecular dynamics (MD) simulations. The method is based on the projection of the atomic velocity vectors on the tangential directions of the trajectories belonging to a predefined set of internal coordinates. In this way only contributions of atomic motions along these internal coordinates are taken into consideration. The new ...
Comparison of Discretization Methods for Preprocessing Data for Pyramidal Growing Network Classification Method Universiteit Hasselt
This paper presents a comparison of four representative discretization methods from different classes to be used with so called PGN-classifier which deals with categorical data. We examine which of them supplies more convenient discretization for PGN Classification Method. The experiment are provided on the base of UCI repository data sets. The comparison tests were provided using an experimental classification machine learning system "PaGaNe", ...
The Hybrid Finite Element Mixing Cell Method: A New Flexible Method for Modelling Mine Groundwater Problems KU Leuven
Dewatering operations often stop at mine closure. The ground water rebound can have undesirable consequences, which numerical models can help one understand and manage. However, classical modelling techniques are relatively unsuitable to these contexts. While spatially-distributed and physically-based models suffer difficulties due to the lack of data and the complexity of geological and hydrogeological conditions, black-box models are too ...
A semi automated simplification method for hydrodynamic sewer models / Une méthode de simplification semi-automatisée pour les modèles hydrodynamiques de réseaux KU Leuven
In recent literature, several approaches for the simplification of hydrodynamic sewer models are discussed. The aim of this study is to investigate whether it is possible to establish a rather simple and robust semi automated procedure capable of simplifying the structure of arbitrary sewer networks to an extent where both simulation time and accuracy are within an acceptable range. The final procedure developed from these investigations is ...