Integrating rough sets with neural networks for weighting road safety performance indicators (2009)
Li, Tianrui, Shen, Youngjun, Ruan, Da, Hermans, Elke, Wets, Geert
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...
Use of Bayesian belief networks to help understand online audience (2009)
Waldek Jaronski, Josee Bloemer, Koen Vanhoof, Geert Wets
Abstract. Online businesses possess of high volumes web traffic and transaction data. Often, also valuable data regarding visitor opinions and attitudes towards the service and the website itself are...
A Fuzzy Decision Table Approach for Business Site Selection (2008)
Geert Wets, Frank Witloxb, Harry Timmemans, Jan Vanthienena
In this paper it is explained how the techniques of fuzzy decision tables can used for business site selection. It is outlined how this technique fits in the spectrum of techniques which can be...
Evaluation of road safety performance indicators using OWA operators (2008)
Hermans, Elke, Ruan, Da, Brijs, Tom, Wets, Geert, Vanhoof, Koen
Road safety performance indicators have recently been proposed as a useful instrument in comparing countries on their performance of road safety risk factors. New insights can be gained in case one...
The Construction of a Bioactive Peptide Database in Metazoa (2008)
Bioactive peptides play critical roles in regulating most biological processes in animals, and have considerable biological, medical and industrial importance. A number of peptides have been...
THE IMPORTANCE OF AGGREGATION OPERATOR CHARACTERISTICS IN MARKETING RESEARCH (2008)
Kris Brijs, Benoît Depaire, Koen Vanhoof, Tom Brijs, Geert Wets
Abstract: Our paper demonstrates that aggregation operator characteristics count as a promising avenue for applied fuzzy set research. It is shown by means of two cases that these characteristics are...
Davy Janssens, Tom Brijs, Koen Vanhoof, Geert Wets, Gebouw D
Evaluating the performance of Cost-based Discretization versus
Davy Janssens, Geert Wets, Tom Brijs, Koen Vanhoof
This paper has developed and evaluated a framework for simulating activity diary data. It is claimed in the paper that simulating activity diary data can be useful to assist practitioners and...
In this paper, models are developed to explain and forecast the frequency and severity of accidents in Belgium. The objective of this study is to enhance the understanding of the developments in road...
Generating Dynamic Activity-Travel Schedules (2008)
Marlies Vanhulsel, Davy Janssens, Geert Wets
Abstract � While making decisions, governments and policy makers are supported by models in order to estimate the impact of their decisions on society as a whole. Transportation models compromise a...
Davy Janssens, Geert Wets, Tom Brijs, Koen Vanhoof
For the last decade, activity-based transportation models have certainly set the standard for modelling travel demand. As a result of this, the data required to estimate any activity-based model,...
ABSTRACT Using Association Rules for Product Assortment Decisions: A Case Study (2008)
Tom Brijs, Gilbert Swinnen, Koen Vanhoof, Geert Wets
It has been claimed that the discovery of association rules is well-suited for applications of market basket analysis to reveal regularities in the purchase behaviour of customers. Moreover, recent...
* The Use of Rule-Based Knowledge Discovery Techniques to Profile Black Spots ABSTRACT (2008)
Karolien Geurts, Geert Wets, Tom Brijs, Koen Vanhoof
In Belgium, traffic safety is currently one of the highest topics on the list of priorities of the government. The identification of black spots and black zones and profiling them in terms of...
Tom Brijs, Geert Wets, Robin Krimpenfort, Col Offermans
Several scholars have defined the urgent need for more research to identify the precise relationship between speed and crash involvement more fully. In this paper, we present the first results of an...
Karolien Geurts, Geert Wets, Tom Brijs, Koen Vanhoof
In Flanders, approximately 1014 accident locations are currently considered as ‘dangerous’. These ‘dangerous’ accident sites or ‘black spots ’ are selected by means of their historic...
Exposure is a key variable in traffic safety research. In the literature, it is noted as the first and primary determinant of traffic safety. In many cases, however, no valid exposure measure is...
Tom Brijs, Gilbert Swinnen, Koen Vanhoof, Geert Wets
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Or And Ai, Bruno Kochan, Davy Janssens, Tom Bellemans, Geert Wets
Activity- ased transportation models have set the standard for modelling travel demand for the last decade. It seems common practice nowadays to collect the data to estimate these activity- ased...
Generated Uninorms as a Multi-Criteria Comparative Evaluation Model (2008)
DEPAIRE, Benoit, VANHOOF, Koen, WETS, Geert
In this article, the authors illustrate how generated uninorms can be interpreted as a multi-criteria comparative evaluation model. This model comprises three steps, which are discussed in a generic...
BRIJS, Tom, KARLIS, Dimitris, WETS, Geert
In previous research, significant effects of weather conditions on car crashes have been found. However, most studies use monthly or yearly data and only few studies are available analyzing the...
The effects of roundabouts on traffic safety for bicyclists: An observational study (2008)
DANIELS, Stijn, NUYTS, Erik, WETS, Geert
A before-and-after study was carried out of injury accidents involving bicyclists on 91 roundabouts in Flanders-Belgium. The study design accounted for the effects of general safety trends and...
Traffic accident segmentation by means of latent class clustering (2008)
DEPAIRE, Benoit, WETS, Geert, VANHOOF, Koen
Traffic accident data are often heterogeneous, which can cause certain relationships to remain hidden. Therefore, traffic accident analysis is often performed on a small subset of traffic accidents...
PSO Driven Collaborative Clustering: a Clustering Algorithm for Ubiquitous Environments (2008)
DEPAIRE, Benoit, Falcón, Rafael, VANHOOF, Koen, WETS, Geert
The goal of this article is to introduce two existing clustering approaches into the domain of ubiquitous knowledge discovery. First we demonstrate how horizontal collaborative clustering can be...
ARUBAS: An Association Rule Based Similarity Framework for Associative Classifiers (2008)
DEPAIRE, Benoit, VANHOOF, Koen, WETS, Geert
This article introduces ARUBAS, a new framework to build associative classifiers. In contrast with many existing associative classifiers, it uses class association rules to transform the feature...
MOONS, Elke, BRIJS, Tom, WETS, Geert
As in most European countries, traffic safety has become top priority in the National Safety Plan in Belgium. The first phase in every safety analysis concerns the identification of the hazardous...
Combining road safety information in a performance index (2008)
HERMANS, Elke, VAN DEN BOSSCHE, Filip, WETS, Geert
In this paper we focus on an essential step in the construction process of a composite road safety performance indicator: the assignment of weights to the individual indicators. In the composite...
Evaluation of road safety performance indicators using OWA operators (2008)
HERMANS, Elke, RUAN, Da, BRIJS, Tom, WETS, Geert, VANHOOF, Koen
Road safety performance indicators have recently been proposed as a useful instrument in comparing countries on their performance of road safety risk factors. New insights can be gained in case one...
ARUBAS: An Association Rule Based Similarity Framework for Associative Classifiers (2008)
This article introduces ARUBAS, a new framework to build associative classifiers. In contrast with many existing associative classifiers, it uses class association rules to transform the feature...
DANIELS, Stijn, BRIJS, Tom, NUYTS, Erik, WETS, Geert
Rotondes hebben onmiskenbaar een positieve bijdrage geleverd tot de verkeersveiligheid. Toch vormen de veiligheidseffecten voor fietsers een punt van zorg. In eerder onderzoek bleek dat in Vlaanderen...
Han, Q., Arentze, T., TIMMERMANS, Harry, JANSSENS, Davy, WETS, Geert
This paper develops a framework for modelling the dynamic formation of location choicesets. The proposed framework integrates three key concepts, namely aspiration, activation and expected utility....
BELLEMANS, Tom, KOCHAN, Bruno, JANSSENS, Davy, WETS, Geert, Timmermans, H.J.P.
Abstract. A custom tool, PARROTS (PDA system for Activity Registration and Recording of Travel Scheduling) was developed to collect both activity data and GPS data. This tool is currently deployed in...
Assessing the impact of weather on traffic intensity (2008)
COOLS, Mario, MOONS, Elke, WETS, Geert
The investigation of weather effects on traffic intensity is important from a road safety point of view, because traffic intensity is noted as the first and primary determinant of traffic safety....
Impact of Methodological Choices on Road Safety Ranking (2008)
HERMANS, Elke, VAN DEN BOSSCHE, Filip, WETS, Geert
Composite indicators aggregate a lot of information in one index based on which countries are often ranked. However, the position of a country can largely be influenced by the methodological choices...
VANHULSEL, Marlies, JANSSENS, Davy, WETS, Geert
Recently, within the area of activity-based travel demand modeling there is a general tendency to enhance the realism of these models by incorporating dynamics based on learning and adaptation...
Assessing the Impact of Fuel Cost on Traffic Demand in Flanders using Activity-Based Models (2008)
TORMANS, Hans, JANSSENS, Davy, BRIJS, Tom, WETS, Geert
In this paper, we discuss the conceptual idea of the development of an instrument that assists local authorities in enhancing their traffic safety policy. Taking the principles of Total Quality...
HERMANS, Elke, BRIJS, Tom, WETS, Geert
Het aantal letselongevallen en slachtoffers wordt vaak vergeleken tussen landen om een idee te krijgen van de relatieve prestatie inzake verkeersveiligheid. Het is echter zinvol om daarnaast de...
Destination choice in daily activity travel: the mental map’s repertoire (2008)
HANNES, Els, JANSSENS, Davy, WETS, Geert
In order to improve the behavioral realism of activity-based travel demand models, a deeper understanding of individual’s travel decision process is needed. Therefore, this research project aims at...
Design of Stated Adaptation Experiments: Discussion of Some Issues and Experiences (2008)
VAN BLADEL, Kelly, BELLEMANS, Tom, JANSSENS, Davy, WETS, Geert, Nijland, L., Arentze, T., ...
Stated preference experiments have become commonly used methods of data collection in transportation research and the increasing importance of individual choice processes in travel behaviour research...
DANIELS, Stijn, BRIJS, Tom, NUYTS, Erik, WETS, Geert
Roundabouts in general have a favourable effect on traffic safety, at least for crashes causing injuries. Especially the number of severe crashes (fatalities and crashes involving serious injuries)...
PSO driven collaborative clustering: A clustering algorithm for ubiqutious environments (2008)
DEPAIRE, Benoit, Falcon, R., VANHOOF, Koen, WETS, Geert
The goal of this article is to introduce two existing clustering approaches into the domain of ubiquitous knowledge discovery. First we demonstrate how horizontal collaborative clustering can be...
Modeling individuals' cognitive and affective responses in spatial learning behavior (2008)
Han, Q., Arentze, T., TIMMERMANS, Harry, JANSSENS, Davy, WETS, Geert
Activity-based analysis has slowly shifted gear from analysis of daily activity patterns to analysis and modeling of dynamic activity-travel patterns. In this paper, we describe a dynamic model that...
Davy Janssens, Tom Brijs, Koen Vanhoof, Geert Wets
Discretization is defined as the process that divides continuous numeric values into intervals of discrete categorical values. In this article, the concept of cost-based discretization as a...
Karolien Geurts, Geert Wets, Tom Brijs, Koen Vanhoof
In Belgium, traffic safety is currently one of the government’s highest priorities. Identifying and profiling black spots and black zones in terms of accident related data and location...
Davy Janssens, Geert Wets, Tom Brijs, Koen Vanhoof, Harry Timmermans
Capturing behavioral principles within the context of activity-based travel patterns is of vital importance to build adequate transportation planning models. Of course, there is no solitarily model...
ABSTRACT Using Association Rules for Product Assortment Decisions: A Case Study (2007)
Tom Brijs, Gilbert Swinnen, Koen Vanhoof, Geert Wets
It has been claimed that the discovery of association rules is well-suited for applications of market basket analysis to reveal regularities in the purchase behaviour of customers. Moreover, recent...
Li, Tianrui, Ruan, Da, Wets, Geert, Song, Jing, Xu, Yang
Any attribute set in an information system may be evolving in time when new information arrives. Approximations of a concept by rough set theory need updating for data mining or other related tasks....
Li, Tianrui, Ruan, Da, Wets, Geert, Song, Jing, Xu, Yang
Any attribute set in an information system may be evolving in time when new information arrives. Approximations of a concept by rough set theory need updating for data mining or other related tasks....
The importance of aggregation operator characteristics in marketing research (2007)
BRIJS, Kris, DEPAIRE, Benoit, VANHOOF, Koen, BRIJS, Tom, WETS, Geert
A Bayesian model for ranking hazardous road sites (2007)
BRIJS, Tom, WETS, Geert, KARLIS, Dimitris, VAN DEN BOSSCHE, Filip
Road safety has recently become a major concern in most modern societies. The identification of sites that are more dangerous than others (black spots) can help in better scheduling road safety...
JANSSENS, Davy, Lan, Yu, WETS, Geert, Chen, Guoqing
The Reinforcement Machine Learning technique presented in this paper simulates time and location information for a given sequence of activities and transport modes. The main contributions to the...
Li, Tianrui, WETS, Geert, Song, Jing, Xu, Yang, RUAN, Da
Any attribute set in an information system may be evolving in time when new information arrives. Approximations of a concept by rough set theory need updating for data mining or other related tasks....
Driving with intelligent speed adaptation: Final results of the Belgian ISA-trial (2007)
De Mol, Johan, Panis, Luc Int, BRIJS, Tom, WETS, Geert, VLASSENROOT, Sven, BROEKX, Steven
In October 2002 the first ISA-trial in Belgium was started in Ghent. Thirty-four cars and three buses were equipped with the "active accelerator pedal". In this system a resistance in the accelerator...
The importance of aggregation operator characteristics in marketing research (2007)
BRIJS, Kris, DEPAIRE, Benoit, VANHOOF, Koen, BRIJS, Tom, WETS, Geert
A Bayesian model for ranking hazardous road sites (2007)
BRIJS, Tom, KARLIS, Dimitris, VAN DEN BOSSCHE, Filip, WETS, Geert
Road safety has recently become a major concern in most modern societies. The identification of sites that are more dangerous than others (black spots) can help in better scheduling road safety...
JANSSENS, Davy, Lan, Yu, WETS, Geert, Chen, Guoqing
The Reinforcement Machine Learning technique presented in this paper simulates time and location information for a given sequence of activities and transport modes. The main contributions to the...
Li, Tianrui, RUAN, Da, WETS, Geert, Song, Jing, Xu, Yang
Any attribute set in an information system may be evolving in time when new information arrives. Approximations of a concept by rough set theory need updating for data mining or other related tasks....
Driving with intelligent speed adaptation: Final results of the Belgian ISA-trial (2007)
VLASSENROOT, Sven, BROEKX, Steven, De Mol, Johan, Panis, Luc Int, BRIJS, Tom, WETS, Geert
In October 2002 the first ISA-trial in Belgium was started in Ghent. Thirty-four cars and three buses were equipped with the "active accelerator pedal". In this system a resistance in the accelerator...
Impact of data integration an some important travel behavior indicators (2007)
NAKAMYA, Juliet, MOONS, Elke, KOELET, Suzana, WETS, Geert
Travel surveys are one of the most important ways of obtaining the critical information needed for transportation planning and decision making today. Reliable and quality data from household travel....
Nonlinear models for determining mode choice - (Accuracy is not always the optimal goal) (2007)
MOONS, Elke, WETS, Geert, AERTS, Marc
Due to the increasing complexity in transportation systems, one needs to search for different ways to model the separate components of these systems. A general transportation system comprises...
Analysis of road risk by age and gender category - Time series approach (2007)
VAN DEN BOSSCHE, Filip, WETS, Geert, BRIJS, Tom
A road safety analysis for different age and gender categories of road users is introduced. In contrast to many previous studies, the time series of road crashes by age and gender category is...
Investigating effect of holidays on daily traffic counts - Time series approach (2007)
COOLS, Mario, MOONS, Elke, WETS, Geert
Different modeling philosophies are explored to explain and to forecast daily traffic counts. The main objectives of this study are the analysis of the impact of holidays on daily traffic and the...
The importance of aggregation operator characteristics in marketing research (2007)
BRIJS, Kris, DEPAIRE, Benoit, VANHOOF, Koen, BRIJS, Tom, WETS, Geert
Our paper demonstrates that aggregation operator characteristics count as a promising avenue for applied fuzzy set research. It is shown by means of two cases that these characteristics are...
DEPAIRE, Benoit, VANHOOF, Koen, WETS, Geert
In this article, we investigate the role of the customer's expectation in relation to the customer's post-purchase intentions, such as recommendation and loyalty. We hypothesize that the degree of...
The Application of Uninorms in Importance-Performance Analysis (2006)
DEPAIRE, Benoit, Van Hoof, K, WETS, Geert
In the field of marketing, Importance-Performance Analysis is a useful technique for evaluating the elements of a marketing program. The importance dimension of this technique is often determined in...
Proximity is a state of mind: exploring mental maps in daily activity travel behaviour (2006)
HANNES, Els, JANSSEN, Daniel, WETS, Geert
The aim of this paper is to explore the behavioural framework for the integration of the ‘mental map’ concept into the activity based modelling of travel behaviour. The conceptual framework and...
HERMANS, Elke, WETS, Geert, VAN DEN BOSSCHE, Filip
The general purpose of this research is to improve the insight in road safety on Belgian highways by means of a layered model. In this study, the monthly number of persons killed on highways in...
The optimization of activity-travel sequences by means of reinforcement learning (2006)
JANSSENS, Davy, Lan, Y, WETS, Geert, Chen, G
Given a sequence of activities and transport modes, this paper evaluates the use of a Reinforcement Machine Learning technique. The technique simulates time and location allocation for a given set of...
JANSSENS, Davy, Lan, Y., WETS, Geert, Chen, G.
Given a sequence of activities and transport modes, for which a framework has been provided in previous work, this paper evaluates the use of a Reinforcement Machine Learning technique. The technique...
Dynamic activity-travel diary data collection using a GPS-enabled personal digital assistant (2006)
KOCHAN, Bruno, BELLEMANS, Tom, JANSSENS, Davy, WETS, Geert
Activity-based transportation models have set the standard for modelling travel demand for the last decade. It seems common practice nowadays to collect the data to estimate these activity-based...
Modelling travel behaviour has always been a major area of concern in transportation research. Since 1950, due to the rapid increase in car ownership and car use in Western Europe and in the US;...
Fitting S-shaped activity utility functions based on stated-preference data (2006)
VAN BLADEL, Kelly, BELLEMANS, Tom, WETS, Geert, Arentze, T., TIMMERMANS, Harry
The theory of the S-shaped utility functions that was developed by Joh et al. (2003) within the framework of their activity-based transport demand model Aurora, will be used in the present research...
Predicting road crashes using calendar data (2006)
VAN DEN BOSSCHE, Filip, WETS, Geert, BRIJS, Tom
In road safety, macroscopic models are developed to support the quantitative targets in safety programmes. Targets are based on estimated numbers of fatalities and crashes that are typically derived...
Generating dynamic activity-travel schedules (2006)
VANHULSEL, Marlies, JANSSENS, Davy, WETS, Geert
While making decisions, governments and policy makers are supported by models in order to estimate the impact of their decisions on society as a whole. Transportation models compromise a major...
VLASSENROOT, Sven, De Mol, J., BRIJS, Tom, WETS, Geert
Increasing road safety is one of the main goals in traffic policy. Measures to increase.(sustainable) road safety can be divided into infrastructural measures, which make road infrastructure and...
Aiming for parsimony in the sequential analysis of activity-diary data (2006)
This paper aims at a better understanding in the impact of simplification in a sequential analysis of activity-diary data using a feature selection method. To this effect, the predictive performance...
De invloed van het hebben en krijgen van kinderen op de mobiliteit van de ouders (2006)
ZWERTS, Enid, JANSSENS, Davy, WETS, Geert
De invloed van het krijgen en hebben van kinderen is binnen heel wat domeinen van de sociologie onderzocht. De stap van een gezin met twee volwassenen naar een gezin met twee volwassenen en een kind,...
Children's travel behaviour: a world of difference (2006)
Children are not regarded as real actors in the domain of transportation. Most of the time when they appear in this domain they are talked about: their traffic safety, their health, … . That...
Impact of trip purpose on driving behaviour: case study on commuter behaviour in Belgium (2006)
BECKX, Carolien, Panis, L., WETS, Geert, Torfs, R., Mensink, C., Broekx, S., ...
This study explores the relationship between the purpose of a trip and the vehicle exhaust emissions caused by the driving behaviour during this trip. More specifically, this research focuses on the...
BRIJS, Tom, WETS, Geert, Krimpenfort, R., Offermans, C.
Several scholars have defined the urgent need for more research to identify the precise relationship between speed and crash involvement more fully. In this paper, we present the first results of an...
A model for identifying and ranking dangerous accident locations: a case study in Flanders (2006)
BRIJS, Tom, VAN DEN BOSSCHE, Filip, WETS, Geert, Karlis, D.
These days, road safety has become a major concern in most modern societies. In this respect, the determination of road locations that are more dangerous than others (black spots or also called sites...
Steunpunt Verkeersveiligheid
Frequency and Severity of Belgian Road Traffic Accidents Studied by State-Space Methods (2006)
HERMANS, Elke, WETS, Geert, VAN DEN BOSSCHE, Filip
In this paper we investigate the monthly frequency and severitiy of road traffic accidents in Belgium from 1974 to 1999. We describe the trend in the time series, quantify the impact of explanatory...
Managerial Opportunities of Uninorm based Importance-Performance Analysis (2006)
DEPAIRE, Benoit, VANHOOF, Koen, WETS, Geert
In the field of marketing, Importance-Performance Analysis is a useful technique for evaluating the elements of a marketing program. The importance dimension of this technique is often determined in...
GEURTS, Karolien, WETS, Geert, BRIJS, Tom, VANHOOF, Koen, Karlis, D.
Introduction: In this paper a sensitivity analysis is performed to investigate how big the impact would be on the current ranking of crash locations in Flanders (Belgium) when only taking into...
Verkeersonveiligheid voor de zwakke weggebruiker in Vlaanderen (2006)
HERMANS, Elke, WETS, Geert, VAN DEN BOSSCHE, Filip
In deze bijdrage wordt de veiligheid van de zwakke weggebruiker in het verkeer belicht. Uit de statistieken blijkt dat voetgangers en fietsers de meest kwetsbare groepen van weggebruikers zijn en in...
JANSSEN, Daniel, BRIJS, Tom, VANHOOF, Koen, WETS, Geert
Discretization is defined as the process that divides continuous numeric values into intervals of discrete categorical values. In this article, the concept of cost-based discretization as a...
JANSSENS, Davy, WETS, Geert, BRIJS, Tom, VANHOOF, Koen, Arentze, T., TIMMERMANS, Harry
Several activity-based transportation models are now becoming operational and are entering the stage of application for the modelling of travel demand. Some of these models use decision rules to...
Behavioural change in activity-travel patterns in response to road user charging (2006)
Keuleers, B., Chow, V., Thorpe, N., TIMMERMANS, Harry, WETS, Geert
The problem of traffic congestion and associated externalities has become a major focus of transport policies in recent years. Legislation has been passed recently in the United Kingdom to empower...
Improving associative classification by incorporating novel interestingness measures (2006)
Lan, Y., JANSSENS, Davy, Chen, G.Q., WETS, Geert
Associative classification has aroused significant attention in recent years and proved to be intuitive and effective in many cases. This paper aims at achieving more effective associative...
In silico identification of new secretory peptide genes in Drosophila melanogaster (2006)
LIU, Feng, Baggerman, G., D'Hertog, W., Verleyen, P., Schoofs, L., WETS, Geert
Bioactive peptides play critical roles in regulating most biological processes in animals. The elucidation of the amino acid sequence of these regulatory peptides is crucial for our understanding of...
Uncovering conserved patterns in bioactive peptides in Metazoa (2006)
LIU, Feng, Baggerman, G., Schoofs, L., WETS, Geert
Bioactive (neuro)peptides play critical roles in regulating most biological processes in animals. Peptides belonging to the same family are characterized by a typical sequence pattern that is...
The Application of Uninorms in Importance-Performance Analysis (2006)
DEPAIRE, Benoit, VANHOOF, Koen, WETS, Geert
In the field of marketing, Importance-Performance Analysis is a useful technique for evaluating the elements of a marketing program. The importance dimension of this technique is often determined in...
Proximity is a state of mind: exploring mental maps in daily activity travel behaviour (2006)
HANNES, Els, JANSSENS, Davy, WETS, Geert
The aim of this paper is to explore the behavioural framework for the integration of the ‘mental map’ concept into the activity based modelling of travel behaviour. The conceptual framework and...
HERMANS, Elke, WETS, Geert, VAN DEN BOSSCHE, Filip
The general purpose of this research is to improve the insight in road safety on Belgian highways by means of a layered model. In this study, the monthly number of persons killed on highways in...
The optimization of activity-travel sequences by means of reinforcement learning (2006)
JANSSENS, Davy, Lan, Y, WETS, Geert, Chen, G
Given a sequence of activities and transport modes, this paper evaluates the use of a Reinforcement Machine Learning technique. The technique simulates time and location allocation for a given set of...
JANSSENS, Davy, Lan, Y., WETS, Geert, Chen, G.
Given a sequence of activities and transport modes, for which a framework has been provided in previous work, this paper evaluates the use of a Reinforcement Machine Learning technique. The technique...
Dynamic activity-travel diary data collection using a GPS-enabled personal digital assistant (2006)
KOCHAN, Bruno, BELLEMANS, Tom, JANSSENS, Davy, WETS, Geert
Activity-based transportation models have set the standard for modelling travel demand for the last decade. It seems common practice nowadays to collect the data to estimate these activity-based...
Aiming for parsimony in the sequential analysis of activity-diary data (2006)
This paper aims at a better understanding in the impact of simplification in a sequential analysis of activity-diary data using a feature selection method. To this effect, the predictive performance...
Modelling travel behaviour has always been a major area of concern in transportation research. Since 1950, due to the rapid increase in car ownership and car use in Western Europe and in the US;...
Fitting S-shaped activity utility functions based on stated-preference data (2006)
VAN BLADEL, Kelly, BELLEMANS, Tom, WETS, Geert, Arentze, T., TIMMERMANS, Harry
The theory of the S-shaped utility functions that was developed by Joh et al. (2003) within the framework of their activity-based transport demand model Aurora, will be used in the present research...
Predicting road crashes using calendar data (2006)
VAN DEN BOSSCHE, Filip, WETS, Geert, BRIJS, Tom
In road safety, macroscopic models are developed to support the quantitative targets in safety programmes. Targets are based on estimated numbers of fatalities and crashes that are typically derived...
Generating dynamic activity-travel schedules (2006)
VANHULSEL, Marlies, JANSSENS, Davy, WETS, Geert
While making decisions, governments and policy makers are supported by models in order to estimate the impact of their decisions on society as a whole. Transportation models compromise a major...
VLASSENROOT, Sven, De Mol, J., BRIJS, Tom, WETS, Geert
Increasing road safety is one of the main goals in traffic policy. Measures to increase.(sustainable) road safety can be divided into infrastructural measures, which make road infrastructure and...
Children's travel behaviour: a world of difference (2006)
Children are not regarded as real actors in the domain of transportation. Most of the time when they appear in this domain they are talked about: their traffic safety, their health, … . That...
De invloed van het hebben en krijgen van kinderen op de mobiliteit van de ouders (2006)
ZWERTS, Enid, JANSSENS, Davy, WETS, Geert
De invloed van het krijgen en hebben van kinderen is binnen heel wat domeinen van de sociologie onderzocht. De stap van een gezin met twee volwassenen naar een gezin met twee volwassenen en een kind,...
Impact of trip purpose on driving behaviour: case study on commuter behaviour in Belgium (2006)
BECKX, Carolien, Panis, L., WETS, Geert, Torfs, R., Mensink, C., Broekx, S., ...
This study explores the relationship between the purpose of a trip and the vehicle exhaust emissions caused by the driving behaviour during this trip. More specifically, this research focuses on the...
BRIJS, Tom, WETS, Geert, KRIMPENFORT, Robin, Offermans, C.
Several scholars have defined the urgent need for more research to identify the precise relationship between speed and crash involvement more fully. In this paper, we present the first results of an...
A model for identifying and ranking dangerous accident locations: a case study in Flanders (2006)
BRIJS, Tom, VAN DEN BOSSCHE, Filip, WETS, Geert, KARLIS, Dimitris
These days, road safety has become a major concern in most modern societies. In this respect, the determination of road locations that are more dangerous than others (black spots or also called sites...
Steunpunt Verkeersveiligheid
Managerial Opportunities of Uninorm based Importance-Performance Analysis (2006)
DEPAIRE, Benoit, VANHOOF, Koen, WETS, Geert
In the field of marketing, Importance-Performance Analysis is a useful technique for evaluating the elements of a marketing program. The importance dimension of this technique is often determined in...
GEURTS, Karolien, WETS, Geert, BRIJS, Tom, VANHOOF, Koen, KARLIS, Dimitris
Introduction: In this paper a sensitivity analysis is performed to investigate how big the impact would be on the current ranking of crash locations in Flanders (Belgium) when only taking into...
Verkeersonveiligheid voor de zwakke weggebruiker in Vlaanderen (2006)
HERMANS, Elke, WETS, Geert, VAN DEN BOSSCHE, Filip
In deze bijdrage wordt de veiligheid van de zwakke weggebruiker in het verkeer belicht. Uit de statistieken blijkt dat voetgangers en fietsers de meest kwetsbare groepen van weggebruikers zijn en in...
Frequency and Severity of Belgian Road Traffic Accidents Studied by State-Space Methods (2006)
HERMANS, Elke, WETS, Geert, VAN DEN BOSSCHE, Filip
In this paper we investigate the monthly frequency and severitiy of road traffic accidents in Belgium from 1974 to 1999. We describe the trend in the time series, quantify the impact of explanatory...
JANSSENS, Davy, BRIJS, Tom, VANHOOF, Koen, WETS, Geert
Discretization is defined as the process that divides continuous numeric values into intervals of discrete categorical values. In this article, the concept of cost-based discretization as a...
JANSSENS, Davy, WETS, Geert, BRIJS, Tom, VANHOOF, Koen, Arentze, T., TIMMERMANS, Harry
Several activity-based transportation models are now becoming operational and are entering the stage of application for the modelling of travel demand. Some of these models use decision rules to...
Behavioural change in activity-travel patterns in response to road user charging (2006)
KEULEERS, Bertold, Chow, V., Thorpe, N., TIMMERMANS, Harry, WETS, Geert
The problem of traffic congestion and associated externalities has become a major focus of transport policies in recent years. Legislation has been passed recently in the United Kingdom to empower...
Improving associative classification by incorporating novel interestingness measures (2006)
Lan, Y., JANSSENS, Davy, Chen, G.Q., WETS, Geert
Associative classification has aroused significant attention in recent years and proved to be intuitive and effective in many cases. This paper aims at achieving more effective associative...
In silico identification of new secretory peptide genes in Drosophila melanogaster (2006)
LIU, Feng, Baggerman, G., D'Hertog, W., Verleyen, P., Schoofs, L., WETS, Geert
Bioactive peptides play critical roles in regulating most biological processes in animals. The elucidation of the amino acid sequence of these regulatory peptides is crucial for our understanding of...
Uncovering conserved patterns in bioactive peptides in Metazoa (2006)
LIU, Feng, Baggerman, G., Schoofs, L., WETS, Geert
Bioactive (neuro)peptides play critical roles in regulating most biological processes in animals. Peptides belonging to the same family are characterized by a typical sequence pattern that is...
Intelligent Data Mining: Techniques and Applications (2005)
Ruan, Da, Chen, Guoqing, Kerre, Etienne, Wets, Geert
Intelligent Data Mining – Techniques and Applications" is an organized edited collection of contributed chapters covering basic knowledge for intelligent systems and data mining, applications in...
The impact of simplification in a sequential rule-based model of activity-scheduling behavior (2005)
Arentze, TA, MOONS, Elke, AERTS, Marc, TIMMERMANS, Harry, WETS, Geert
The aim of this paper is to gain a better understanding of the impact of simplification on a sequential model of activity-scheduling behavior which uses feature-selection methods. To that effect, the...
Why promotion strategies based on market basket analysis do not work (2005)
In text books as well as in the business literature, market basket analysis is often promoted as a means to obtain product associations to base a retailer's promotion strategy on. They argue that...
Adapting the CBA algorithm by means of intensity of implication (2005)
JANSSENS, Davy, WETS, Geert, BRIJS, Tom, VANHOOF, Koen
In recent years, extensive research has been carried out by using association rules to build more accurate classifiers. The idea behind these integrated approaches is to focus on a limited subset of...
JANSSENS, Davy, WETS, Geert, BRIJS, Tom, VANHOOF, Koen
This paper has developed and evaluated the implementation of an adapted Markov Chain modelling heuristic and simulation framework in the context of transportation research. In order to gain insight...
Understanding spatial concentrations of road accidents using frequent item sets (2005)
Thomas, I, GEURTS, Karolien, WETS, Geert
This paper aims at understanding why road accidents tend to cluster in specific road segments. More particularly, it aims at analyzing which are the characteristics of the accidents occurring in...
Bioinformatic analysis of peptide precursor proteins (2005)
LIU, Feng, WETS, Geert, Schoofs, L, Baggerman, G
Neuropeptides are among the most important signal molecules in animals. Traditional identification of peptide hormones through peptide purification is a tedious and time-consuming process. With the...
Role of exposure in analysis of road accidents - A Belgian case study (2005)
VAN DEN BOSSCHE, Filip, WETS, Geert, BRIJS, Tom
Exposure is a key variable in traffic safety research. In the literature, it is noted as the first and primary determinant of traffic safety. In many cases, however, no valid exposure measure is...
Discovering interesting navigations on a web site using SAM (2005)
HAY, Birgit, WETS, Geert, VANHOOF, Koen
In this article, a new algorithm called Sequence Alignment Method extended with an Interestingness Measure (SAM(I)) is illustrated for mining navigation patterns on a web site. Through log file...
Janssens, D., WETS, Geert, BRIJS, Tom, VANHOOF, Koen
A lot of research has been carried out in the past by using association rules to build more accurate classifiers. The idea behind these integrated approaches is to focus on a limited subset of...
Penalty-reward analysis with uninorms: a study of customer (dis)satisfaction (2005)
VANHOOF, Koen, PAUWELS, Pieter, Dombi, J., BRIJS, Tom, WETS, Geert
The impact of simplification in a sequential rule-based model of activity-scheduling behavior (2005)
MOONS, Elke, WETS, Geert, AERTS, Marc, Arentze, TA, TIMMERMANS, Harry
The aim of this paper is to gain a better understanding of the impact of simplification on a sequential model of activity-scheduling behavior which uses feature-selection methods. To that effect, the...
Why promotion strategies based on market basket analysis do not work (2005)
In text books as well as in the business literature, market basket analysis is often promoted as a means to obtain product associations to base a retailer's promotion strategy on. They argue that...
Adapting the CBA algorithm by means of intensity of implication (2005)
JANSSENS, Davy, WETS, Geert, BRIJS, Tom, VANHOOF, Koen
In recent years, extensive research has been carried out by using association rules to build more accurate classifiers. The idea behind these integrated approaches is to focus on a limited subset of...
JANSSENS, Davy, WETS, Geert, BRIJS, Tom, VANHOOF, Koen
This paper has developed and evaluated the implementation of an adapted Markov Chain modelling heuristic and simulation framework in the context of transportation research. In order to gain insight...
Understanding spatial concentrations of road accidents using frequent item sets (2005)
GEURTS, Karolien, Thomas, I, WETS, Geert
This paper aims at understanding why road accidents tend to cluster in specific road segments. More particularly, it aims at analyzing which are the characteristics of the accidents occurring in...
Bioinformatic analysis of peptide precursor proteins (2005)
Baggerman, G, LIU, Feng, WETS, Geert, Schoofs, L
Neuropeptides are among the most important signal molecules in animals. Traditional identification of peptide hormones through peptide purification is a tedious and time-consuming process. With the...
Role of exposure in analysis of road accidents - A Belgian case study (2005)
VAN DEN BOSSCHE, Filip, WETS, Geert, BRIJS, Tom
Exposure is a key variable in traffic safety research. In the literature, it is noted as the first and primary determinant of traffic safety. In many cases, however, no valid exposure measure is...
Discovering interesting navigations on a web site using SAM (2005)
HAY, Birgit, WETS, Geert, VANHOOF, Koen
In this article, a new algorithm called Sequence Alignment Method extended with an Interestingness Measure (SAM(I)) is illustrated for mining navigation patterns on a web site. Through log file...
Janssens, D., WETS, Geert, BRIJS, Tom, VANHOOF, Koen
A lot of research has been carried out in the past by using association rules to build more accurate classifiers. The idea behind these integrated approaches is to focus on a limited subset of...
Penalty-reward analysis with uninorms: a study of customer (dis)satisfaction (2005)
VANHOOF, Koen, PAUWELS, Pieter, Dombi, J., BRIJS, Tom, WETS, Geert
Penalty-reward analysis with unicorns: A study of customer (dis)satisfaction (2005)
Vanhoof, Koen, Pauwels, Pieter, Dombi, Joszef, Brijs, Tom, Wets, Geert
De Schamphelaere, J, WETS, Geert
In this study, we measure complementary effects of retail promotions for a large number of product pairs. For this, we make use of market basket analysis. We argue that failing to take these...
Mining navigation patterns using a sequence alignment method (2004)
Hay, B, WETS, Geert, VANHOOF, Koen
In this article, a new method is illustrated for mining navigation patterns on a web site. Instead of clustering patterns by means of a Euclidean distance measure, in this approach users are...
A tree based lack-of-fit test for multiple logistic regression (2004)
MOONS, Elke, AERTS, Marc, WETS, Geert
Several omnibus tests have been developed to assess the fit of a regression model. But many of these lack-of-fit tests focus on the simple regression setting. Here, we focus on multiple logistic...
A multivariate Poisson mixture model for marketing applications (2004)
Manchanda, P, BRIJS, Tom, KARLIS, Dimitris, SWINNEN, Gilbert, VANHOOF, Koen, WETS, Geert
This paper describes a multivariate Poisson mixture model for clustering supermarket shoppers based on their purchase frequency in a set of product categories. The multivariate nature of the model...
Customer-adapted coupon targeting using feature selection (2004)
Buckinx, W, MOONS, Elke, WETS, Geert
The management of coupon promotions is an important issue for marketing managers since it still is the major promotion medium. However, the distribution of coupons does not go without problems....
Building an association rules framework to improve product assortment decisions (2004)
BRIJS, Tom, SWINNEN, Gilbert, VANHOOF, Koen, WETS, Geert
It has been claimed that the discovery of association rules is well suited for applications of market basket analysis to reveal regularities in the purchase behaviour of customers. However today, one...
JANSSENS, Davy, WETS, Geert, BRIJS, Tom, VANHOOF, Koen, TIMMERMANS, Harry, Arentze, T
Several activity-based models are now becoming operational and are entering the stage of application in transport planning. Some of these models use a set of decision trees to support decision making...
Identification and ranking of black spots - Sensitivity analysis (2004)
GEURTS, Karolien, WETS, Geert, BRIJS, Tom, VANHOOF, Koen
In Flanders, Belgium, approximately 1,014 accident locations are considered dangerous. These dangerous accident sites, or black spots, are selected by means of historic accident records for the...
Applying Bayesian networks in practical customer satisfaction studies (2004)
JARONSKI, Waldemar, BLOEMER, Johanna, VANHOOF, Koen, WETS, Geert
Exploiting sensitivity analysis in Bayesian networks for customer satisfaction study (2004)
JARONSKI, Waldemar, BLOEMER, Johanna, VANHOOF, Koen, WETS, Geert
De Schamphelaere, J, WETS, Geert
In this study, we measure complementary effects of retail promotions for a large number of product pairs. For this, we make use of market basket analysis. We argue that failing to take these...
Mining navigation patterns using a sequence alignment method (2004)
Hay, B, WETS, Geert, VANHOOF, Koen
In this article, a new method is illustrated for mining navigation patterns on a web site. Instead of clustering patterns by means of a Euclidean distance measure, in this approach users are...
A tree based lack-of-fit test for multiple logistic regression (2004)
MOONS, Elke, AERTS, Marc, WETS, Geert
Several omnibus tests have been developed to assess the fit of a regression model. But many of these lack-of-fit tests focus on the simple regression setting. Here, we focus on multiple logistic...
A multivariate Poisson mixture model for marketing applications (2004)
Manchanda, P, BRIJS, Tom, KARLIS, Dimitris, SWINNEN, Gilbert, VANHOOF, Koen, WETS, Geert
This paper describes a multivariate Poisson mixture model for clustering supermarket shoppers based on their purchase frequency in a set of product categories. The multivariate nature of the model...
Customer-adapted coupon targeting using feature selection (2004)
Buckinx, W, MOONS, Elke, WETS, Geert
The management of coupon promotions is an important issue for marketing managers since it still is the major promotion medium. However, the distribution of coupons does not go without problems....
Building an association rules framework to improve product assortment decisions (2004)
BRIJS, Tom, SWINNEN, Gilbert, VANHOOF, Koen, WETS, Geert
It has been claimed that the discovery of association rules is well suited for applications of market basket analysis to reveal regularities in the purchase behaviour of customers. However today, one...
JANSSENS, Davy, WETS, Geert, BRIJS, Tom, VANHOOF, Koen, Arentze, T, TIMMERMANS, Harry
Several activity-based models are now becoming operational and are entering the stage of application in transport planning. Some of these models use a set of decision trees to support decision making...
Identification and ranking of black spots - Sensitivity analysis (2004)
GEURTS, Karolien, WETS, Geert, BRIJS, Tom, VANHOOF, Koen
In Flanders, Belgium, approximately 1,014 accident locations are considered dangerous. These dangerous accident sites, or black spots, are selected by means of historic accident records for the...
Applying Bayesian networks in practical customer satisfaction studies (2004)
JARONSKI, Waldemar, BLOEMER, Johanna, VANHOOF, Koen, WETS, Geert
Exploiting sensitivity analysis in Bayesian networks for customer satisfaction study (2004)
JARONSKI, Waldemar, BLOEMER, Johanna, VANHOOF, Koen, WETS, Geert
Profiling of high-frequency accident locations by use of association rules (2003)
GEURTS, Karolien, WETS, Geert, BRIJS, Tom, VANHOOF, Koen
In Belgium, traffic safety is one of the government's highest priorities. The identification and profiling of black spots and black zones (geographical locations with high concentrations of traffic...
Web Usage Mining by means of Multidimensional Sequence Alignment Methods (2003)
HAY, Birgit, WETS, Geert, VANHOOF, Koen
In this article, a new algorithm called Multidimensional Sequence Alignment Method (MDSAM) is illustrated for mining navigation patterns on a web site. MDSAM examines sequences composed of several...
Two lack of fit tests for multiple logistic regression (2003)
AERTS, Marc, AERTS, Marc, CLAESKENS, Gerda, HART, Jeff, MOONS, Elke, WETS, Geert
Profiling of high-frequency accident locations by use of association rules (2003)
GEURTS, Karolien, WETS, Geert, BRIJS, Tom, VANHOOF, Koen
In Belgium, traffic safety is one of the government's highest priorities. The identification and profiling of black spots and black zones (geographical locations with high concentrations of traffic...
Web Usage Mining by means of Multidimensional Sequence Alignment Methods (2003)
HAY, Birgit, WETS, Geert, VANHOOF, Koen
In this article, a new algorithm called Multidimensional Sequence Alignment Method (MDSAM) is illustrated for mining navigation patterns on a web site. MDSAM examines sequences composed of several...
Two lack of fit tests for multiple logistic regression (2003)
AERTS, Marc, AERTS, Marc, CLAESKENS, Gerda, HART, Jeff, MOONS, Elke, WETS, Geert
Simple association rules (SAR) and the SAR-based rule discovery (2002)
Chen, GQ, Wei, Q, Liu, D, WETS, Geert
Association rule mining is one of the most important fields in data mining and knowledge discovery in databases. Rules explosion is a problem of concern, as conventional mining algorithms often...
KEULEERS, Bertold, WETS, Geert, TIMMERMANS, Harry, VANHOOF, Koen, Arentze, T
The question of identifying temporal patterns in activity diary data has received only scant attention in the transportation literature, but interest is rapidly increasing. Most of the existing...
The role of Occam's razor in activity based modeling (2002)
MOONS, Elke, WETS, Geert, AERTS, Marc, AERTS, Marc, VANHOOF, Koen
Tuning the multivariate Poisson mixture model for clustering supermarket shoppers (2002)
BRIJS, Tom, SWINNEN, Gilbert, VANHOOF, Koen, WETS, Geert, Karlis, D.
Simple association rules (SAR) and the SAR-based rule discovery (2002)
Chen, GQ, Wei, Q, Liu, D, WETS, Geert
Association rule mining is one of the most important fields in data mining and knowledge discovery in databases. Rules explosion is a problem of concern, as conventional mining algorithms often...
KEULEERS, Bertold, WETS, Geert, TIMMERMANS, Harry, VANHOOF, Koen, Arentze, T
The question of identifying temporal patterns in activity diary data has received only scant attention in the transportation literature, but interest is rapidly increasing. Most of the existing...
The role of Occam's razor in activity based modeling (2002)
MOONS, Elke, WETS, Geert, AERTS, Marc, AERTS, Marc, VANHOOF, Koen
Tuning the multivariate Poisson mixture model for clustering supermarket shoppers (2002)
BRIJS, Tom, SWINNEN, Gilbert, VANHOOF, Koen, WETS, Geert, Karlis, D.
Brijs, Tom, Goethals, Bart, Swinnen, Gilbert, Vanhoof, Koen, Wets, Geert
In recent years, data mining researchers have developed efficient association rule algorithms for retail market basket analysis. Still, retailers often complain about how to adopt association rules...
Arentze, T, WETS, Geert, KEULEERS, Bertold, TIMMERMANS, Harry
Activity-based analysis in transportation demand forecasting is one of the most promising approaches in current transportation modeling. Travel decisions are understood as the outcome of underlying...
Gaining insight into characteristics of online audiences with new approaches (2001)
JARONSKI, Waldemar, BLOEMER, Johanna, VANHOOF, Koen, WETS, Geert
Use of Bayesian belief networks to help understand online audience (2001)
JARONSKI, Waldemar, BLOEMER, Johanna, VANHOOF, Koen, WETS, Geert
How well perform very simple rules on activity diary data? (2001)
MOONS, Elke, WETS, Geert, VANHOOF, Koen, AERTS, Marc, AERTS, Marc, Timmermans, H.
Arentze, T, WETS, Geert, KEULEERS, Bertold, TIMMERMANS, Harry
Activity-based analysis in transportation demand forecasting is one of the most promising approaches in current transportation modeling. Travel decisions are understood as the outcome of underlying...
Gaining insight into characteristics of online audiences with new approaches (2001)
JARONSKI, Waldemar, BLOEMER, Johanna, VANHOOF, Koen, WETS, Geert
Use of Bayesian belief networks to help understand online audience (2001)
JARONSKI, Waldemar, BLOEMER, Johanna, VANHOOF, Koen, WETS, Geert
How well perform very simple rules on activity diary data? (2001)
MOONS, Elke, WETS, Geert, VANHOOF, Koen, AERTS, Marc, AERTS, Marc, Timmermans, H.
Clustering navigation patterns on a Website using a sequence alignment method (2001)
Birgit Hay, Geert Wets, Koen Vanhoof
In this paper, a new method is illustrated to cluster navigation patterns on a website. Instead of clustering users by means of a Euclidean distance measure, in our approach users are partitioned...
Using shopping baskets to cluster supermarket customers (2001)
Tom Brijs, Gilbert Swinnen, Koen Vanhoof, Geert Wets
Abstract. Today, competition forces consumer goods manufacturers and retailers to differentiate from their competitors by specializing and by offering goods/services that are tailored towards one or...
Clustering navigation patterns on a Website using a sequence alignment method (2001)
Birgit Hay, Geert Wets, Koen Vanhoof
In this paper, a new method is illustrated to cluster navigation patterns on a website. Instead of clustering users by means of a Euclidean distance measure, in our approach users are partitioned...
Using decision tree induction systems for modeling space-time behavior (2000)
Arentze, TA, Hofman, F, Van Mourik, H, TIMMERMANS, Harry, WETS, Geert
Discrete choice models are commonly used to predict individuals' activity and travel choices either separately or simultaneously in activity scheduling models. This paper investigates the...
The improvement of response modeling: combining rule-induction and case-based reasoning (2000)
Coenen, F, SWINNEN, Gilbert, VANHOOF, Koen, WETS, Geert
Direct mail is a typical example for response modeling to be used. In order to decide which people will receive the mailing, the potential customers are divided into two groups or classes (buyers and...
A synthesis of fuzzy rule-based system verification (2000)
Viaene, S, Vanthienen, J, WETS, Geert
The verification of fuzzy rule bases for anomalies has received increasing attention these last few years. Many different approaches have been suggested and many are still under investigation. In...
Comparing complete and partial classification for identifying latently dissatisfied customers (2000)
Using decision tree induction systems for modeling space-time behavior (2000)
Arentze, TA, Hofman, F, Van Mourik, H, TIMMERMANS, Harry, WETS, Geert
Discrete choice models are commonly used to predict individuals' activity and travel choices either separately or simultaneously in activity scheduling models. This paper investigates the...
The improvement of response modeling: combining rule-induction and case-based reasoning (2000)
Coenen, F, SWINNEN, Gilbert, VANHOOF, Koen, WETS, Geert
Direct mail is a typical example for response modeling to be used. In order to decide which people will receive the mailing, the potential customers are divided into two groups or classes (buyers and...
A synthesis of fuzzy rule-based system verification (2000)
Viaene, S, Vanthienen, J, WETS, Geert
The verification of fuzzy rule bases for anomalies has received increasing attention these last few years. Many different approaches have been suggested and many are still under investigation. In...
Comparing complete and partial classification for identifying latently dissatisfied customers (2000)
Tom Brijs, Bart Goethals, Gilbert Swinnen, Koen Vanhoof, Geert Wets
In recent years, data mining researchers have developed ecient association rule algorithms for retail market basket analysis. Still, retailers often complain about how to adopt association rules to...
Tom Brijs, Gilbert Swinnen, Koen Vanhoof, Geert Wets
Abstract-Previous research in the field of data mining has diapers also tend to buy beer during the same shopping visit. demonstrated that the technique of association rules is very well suited to...
Tom Brijs, Bart Goethals, Gilbert Swinnen, Koen Vanhoof, Geert Wets
In recent years, data mining researchers have developed efficient association rule algorithms for retail market basket analysis. Still, retailers often complain about how to adopt association rules...
Tom Brijs, Bart Goethals, Gilbert Swinnen, Koen Vanhoof, Geert Wets
In recent years, data mining researchers have developed efficient association rule algorithms for retail market basket analysis. Still, retailers often complain about how to adopt association rules...
Reducing redundancy in characteristic rule discovery by using integer programming techniques (2000)
Tom Brijs, Koen Vanhoof, Geert Wets
The discovery of characteristic rules is a well-known data mining technique and has lead to several successful applications. Unfortunately, typically a (very) large number of rules is discovered...
Tom Brijs, Bart Goethals, Gilbert Swinnen, Koen Vanhoof, Geert Wets
In recent years, data mining researchers have developed efficient association rule algorithms for retail market basket analysis. Still, retailers often complain about how to adopt association rules...
Reducing Redundancy in Characteristic Rule Discovery By Using Integer Programming Techniques (2000)
Tom Brijs, Koen Vanhoof, Geert Wets
The discovery of characteristic rules is a well-known data mining task and has lead to several successful applications. However, because of the descriptive nature of characteristic rules, typically a...
Tom Brijs, Bart Goethals, Gilbert Swinnen, Koen Vanhoof, Geert Wets
In recent years, data mining researchers have developed efficient association rule algorithms for retail market basket analysis. Still, retailers often complain about how to adopt association rules...
Using association rules for product assortment decisions: A case study (1999)
Tom Brijs, Gilbert Swinnen, Koen Vanhoof, Geert Wets
Association rules is a recent data mining technique to discover affinities, in large transaction databases, between items frequently purchased together. It has been claimed that the discovery of...
Vita.
Extracting Complete And Consistent Knowledge Patterns From Data (1998)
Geert Wets, G. Wets, Jan Vanthienen, Christophe Mues, Harry Timmermans, Christophe Mues, ...
In this paper, it is shown how extracted patterns from data can be verified using decision tables (DTs). It is demonstrated how a complete and consistent decision table can be automatically modelled...
Helping Countries Combat Corruption: Progress at the World Bank since (1997)
Davy Janssens, Geert Wets, Tom Brijs, Koen Vanhoof, Theo Arentze, ...
* corresponding author
Locational choice modelling using fuzzy decision tables (1996)
WETS, Geert, Witlox, Frank, Timmermans, Harry, Vanthienen, Jan
Choice modeling by means of fuzzy decision tables (1996)
WETS, Geert, Witlox, Frank, Timmermans, Harry, Vanthienen, Jan
Locational choice modelling using fuzzy decision tables (1996)
WETS, Geert, Witlox, Frank, Timmermans, Harry, Vanthienen, Jan
Choice modeling by means of fuzzy decision tables (1996)
WETS, Geert, Witlox, Frank, Timmermans, Harry, Vanthienen, Jan
A Bayesian model for ranking hazardous road sites
Tom Brijs, Dimitris Karlis, Geert Wets
Road safety has recently become a major concern in most modern societies. The identification of sites that are more dangerous than others (black spots) can help in better scheduling road safety...
A multivariate Poisson mixture model for marketing applications
Tom Brijs, Dimitris Karlis, Gilbert Swinnen, Koen Vanhoof, Geert Wets, Puneet Manchanda
Integrating Bayesian networks and decision trees in a sequential rule-based transportation model
Janssens, Davy, Wets, Geert, Brijs, Tom, Vanhoof, Koen, Arentze, Theo, Timmermans, Harry
Driving with intelligent speed adaptation: Final results of the Belgian ISA-trial
Vlassenroot, Sven, Broekx, Steven, Mol, Johan De, Panis, Luc Int, Brijs, Tom, Wets, Geert
In October 2002 the first ISA-trial in Belgium was started in Ghent. Thirty-four cars and three buses were equipped with the "active accelerator pedal". In this system a resistance in the accelerator...
Benchmarking road safety: Lessons to learn from a data envelopment analysis
Hermans, Elke, Brijs, Tom, Wets, Geert, Vanhoof, Koen
Road safety performance indicators (SPI) have recently been proposed as a useful instrument in comparing countries on the performance of different risk aspects of their road safety system. In this...
Cost on Traffic Demand in Flanders using Activity-Based Models
KOCHAN, Bruno, BELLEMANS, Tom, JANSSENS, Davy, WETS, Geert
According to United Nations (2001) the demand for transport services is expected to grow considerably as incomes rise, the trend toward urbanization continues and as the process of globalization...
Shifting towards environment-friendly modes: profiling travelers using Q-methodology
Mario Cools, Elke Moons, Brecht Janssens, Geert Wets
Environment-friendly modes, Profiling, Q-methodology, Public transport, Car use,
The improvement of response modeling: Combining rule-induction and case-based reasoning
Coenen, F., SWINNEN, Gilbert, VANHOOF, Koen, WETS, Geert
Direct mail is a typical example for response modeling to be used. In order to decide which people will receive the mailing, the potential customers are divided into two groups or classes (buyers and...
Behavioural Change in Activity-Travel Patterns in Response to Road User Charging
Bertold Keuleers, Vincent Chow, Neil Thorpe, Harry Timmermans, Geert Wets
The problem of traffic congestion and associated externalities has become a major focus of transport policies in recent years. Legislation has been passed recently in the United Kingdom to empower...
Uncertainty assessment of the road safety index
HERMANS, Elke, VAN DEN BOSSCHE, Filip, WETS, Geert
Composite indicators aggregate domain-specific information in one index, on the basis of which countries can be assigned a relative ranking. Recently, the road safety community got convinced of the...
DANIELS, Stijn, BRIJS, Tom, NUYTS, Erik, WETS, Geert
Problem: Previous research indicated that conversions of intersections into roundabouts appear to increase the number of injury crashes with bicyclists. However, it was assumed that the effectiveness...
Shifting towards environment-friendly modes: profiling travelers using Q-methodology
COOLS, Mario, MOONS, Elke, JANSSENS, Brecht, WETS, Geert
Due to a variety of reasons, the previous century is characterized by an extraordinary growth in car use that has continued into the current century. This has resulted in serious environmental...
Beckx, C., INT PANIS, Luc, Van De Vel, Karen, Arentze, Theo, Lefebvre, Wouter, JANSSENS, Davy, ...
The potential advantages of using activity-based transport models for air quality purposes have been recognized for a long time but models that have been developed along these lines are still scarce....
Carolien Beckx, Theo Arentze, Luc Int Panis, Davy Janssens, Jean Vankerkom, Geert Wets
Owing to the richer set of concepts which are involved in activity-based transportation models, the potential advantages of an activity-based approach for air quality purposes have been recognized...