Publicaties
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Biological knowledge management and gene network analysis: a heuristic road to System Biology Universiteit Gent
A Road Network for Freight Transport in Flanders: Multi-Actor Multi-Criteria Assessment of Alternative Ring Ways Vrije Universiteit Brussel
Study of the capacity of the city road network of Odessa Universiteit Gent
Modeling uncertainty of moving objects on road networks via space-time prisms Universiteit Hasselt
Moving objects produce trajectories, which are typically observed in a finite sample of time-stamped locations. Between sample points, we are uncertain about the moving objects's location. When we assume extra information about an object, for instance, a (possibly location-dependent) speed limit, we can use space-time prisms to model the uncertainty of an object's location. Until now, space-time prisms have been studied for unconstrained ...
A hybrid system of neural networks and rough sets for road safety performance indicators Universiteit Hasselt Universiteit Gent
Road safety performance indicators are comprehensible tools that provide a better understanding of current safety conditions and can be used to monitor the effect of policy interventions. New insights can be gained in case one road safety index is composed of all risk indicators. The overall safety performance can then be evaluated, and countries ranked. In this paper, a promising structure of neural networks based on decision rules generated by ...
Integrating rough sets with neural networks for weighting road safety performance indicators Universiteit Hasselt Universiteit Gent
This paper aims at improving two main uncertain factors in neural networks training in developing a composite road safety performance indicator. These factors are the initial value of network weights and the iteration time. More specially, rough sets theory is applied for rule induction and feature selection in decision situations, and the concepts of reduct and core are utilized to generate decision rules from the data to guide the ...
Robustness and edge addition strategy of air transport networks : a case study of 'the Belt and Road' Universiteit Gent
Road Safety Risk Evaluation Using GIS-Based Data Envelopment Analysis—Artificial Neural Networks Approach Universiteit Hasselt
Identification of the most significant factors for evaluating road risk level is an important question in road safety research, predominantly for decision-making processes. However, model selection for this specific purpose is the most relevant focus in current research. In this paper, we proposed a new methodological approach for road safety risk evaluation, which is a two-stage framework consisting of data envelopment analysis (DEA) in ...
Anchor uncertainty and space-time prisms on road networks Universiteit Hasselt Universiteit Gent
Space-time prisms capture all possible locations of a moving person or object between two known locations and times given the maximum travel velocities in the environment. These known locations or 'anchor points' can represent observed locations or mandatory locations because of scheduling constraints. The classic space-time prism as well as more recent analytical and computational versions in planar space and networks assume that these anchor ...