Publications
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Bridging operational, strategic and project management information systems for tactical management information provision Ghent University
Dynamic travel information strategies in advance traveler information systems and their effect on route choices along highways Hasselt University
Advance Traveler Information Systems (ATIS) inform drivers about traffic incidences and expected travel times/ delays en-route. An online computer study was conducted in Qatar to investigate drivers' willingness to divert to an alternative route given changes in expected travel conditions. Respondents' route choices were queried after exposure for 6 seconds to varying display strategies. The results from a binary logistic regression and a stated ...
The role of computational intelligence in temporal information retrieval: a survey of imperfect time in information systems Ghent University
In existing literature, many proposals have concerned the modeling or handling of imperfection in time in information systems. However, although reviews, surveys and overviews about either imperfection or time in information systems exist, no reviews, surveys or overviews about imperfection in time in information systems seem to exist. The main contribution of the work presented in this paper is to attempt to fill this void by presenting a ...
Delay or travel time information? The impact of advanced traveler information systems on drivers' behavior before freeway work zones Hasselt University
Peak travel times contribute to congestion formation at freeway work zones. Advanced Traveler Information Systems (ATIS) can inform drivers in real-time about the delays and travel times en-route and can provide information about an alternative route to a destination. Different ATIS display strategies are available; however, road authorities lack insights into how time display methods and sign characteristics influence the driving behavior ...
Integrating information systems using normalized systems theory University of Antwerp
New technical and business opportunities lead to the adoption of new information systems. Integrating these new systems with the existing application landscape poses many challenges, especially when legacy systems are involved. These systems may rely on completely different architectures or assumptions regarding functionality. Normalized Systems Theory addresses this issue by stating that information systems should behave as stable systems. It ...
Evaluating accounting information systems that support multiple GAAP reporting using normalized systems theory University of Antwerp
This paper uses a mixed methods approach of design science and case study research to evaluate structures of Accounting Information Systems (AIS) that report in multiple Generally Accepted Accounting Principles (GAAP), using Normalized Systems Theory (NST). To comply with regulation, many companies need to apply multiple GAAP. In case studies we identify AIS structures for multiple GAAP reporting. AIS need to cope with changes in GAAP and ...
Upgrading geographic information systems to spatial decision support systems KU Leuven
A GIS is capable of identifying a set of land units meeting positional, temporal, topological and multiple on-site attribute criteria. Based on the combination of its generic analytical functionalities, a GIS can also be used to rank the alternative land units and propose the best or worst ones in terms of the non-weighted or weighted criteria. More advanced multi-criteria decision methods are however not easily incorporated in the GIS-framework ...
Upgrading geographic information systems to spatio-temporal decision support systems KU Leuven
A GIS is capable of identifying a set of land units meeting positional, temporal, topological and multiple on-site attribute criteria. Based on the combination of its generic analytical functionalities, a GIS can also be used to rank the alternative land units and propose the best or worst ones in terms of the non-weighted or weighted criteria. More advanced multi-criteria decision methods are however not easily incorporated in the GIS-framework ...
An incremental approach for inducing knowledge from dynamic information systems Ghent University
Knowledge in an information system evolves with its dynamical environment. A new concept of interesting knowledge based on both accuracy and coverage is defined in this paper for dynamic information systems. An incremental model and approach as well as its algorithm for inducing interesting knowledge are proposed when the object set varies over time. A case study validates the feasibility of the proposed method.