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Stef Janssen
Delft University of Technology
Risk analysis (engineering)Risk assessmentAirport securityExplosive deviceManagement science
7Publications
2H-index
7Citations
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Publications 9
Newest
#1Stef JanssenH-Index: 2
Last. Alexei SharpanskykhH-Index: 13
view all 3 authors...
Airports are attractive targets for terrorists, as they are designed to accommodate and process large amounts of people, resulting in a high concentration of potential victims. A popular method to mitigate the risk of terrorist attacks is through security patrols, but resources are often limited. Game theory is commonly used as a methodology to find optimal patrol routes for security agents such that security risks are minimized. However, game-theoretic models suffer from payoff uncertainty and ...
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#1Stef Janssen (TU Delft: Delft University of Technology)H-Index: 2
#2Alexei Sharpanskykh (TU Delft: Delft University of Technology)H-Index: 13
Last. Koen Langendoen (TU Delft: Delft University of Technology)H-Index: 32
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Abstract Analyzing agent-based models is a complex task. Agent-based models typically contain complex non-linear interactions between agents and generate emergent properties that cannot easily be explained. They are most commonly analyzed using sensitivity analysis techniques. While these techniques help understanding agent-based models better, they are not a one-size-fits-all solution. This paper explores the novel use of causal discovery algorithms from the field of causality as an additional ...
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#1Stef Janssen (TU Delft: Delft University of Technology)H-Index: 2
#2Alexei Sharpanskykh (TU Delft: Delft University of Technology)H-Index: 13
Last. Koen Langendoen (TU Delft: Delft University of Technology)H-Index: 32
view all 4 authors...
AATOM, the Agent-based Airport Terminal Operations Model simulator is open-source, agent-based at its core, and contains several calibrated presets and templates of basic airport terminal components that can readily be used. Agents in this simulator follow the AATOM architecture, an activity-based architecture for human airport agents. This allows analysis based on agent activities, such as shopping and check-in, which is of vital interest for airports. The combination of agent-based modeling an...
#1Arthur Knol (TU Delft: Delft University of Technology)H-Index: 1
#2Alexei Sharpanskykh (TU Delft: Delft University of Technology)H-Index: 13
Last. Stef Janssen (TU Delft: Delft University of Technology)H-Index: 2
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Modern airports operate under high demands and pressures, and strive to satisfy many diverse, interrelated, sometimes conflicting performance goals. Airport performance areas, such as security, safety, and efficiency are usually studied separately from each other. However, operational decisions made by airport managers often impact several areas simultaneously. Current knowledge on how different performance areas are related to each other is limited. This paper contributes to filling this gap by...
2 CitationsSource
#1Stef Janssen (TU Delft: Delft University of Technology)H-Index: 2
#2Alexei Sharpanskykh (TU Delft: Delft University of Technology)H-Index: 13
Last. Richard Curran (TU Delft: Delft University of Technology)H-Index: 9
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Abstract Both security and efficiency are important performance areas of air transport systems. Several methods have been proposed to assess security risks and estimate efficiency independently, but only few of these methods identify relationships between security risks and efficiency performance indicators. To analyze security, efficiency, and the relationships relations between them, an agent-based methodology was proposed in this work. This methodology combines an agent-based security risk as...
1 CitationsSource
#1Stef Janssen (TU Delft: Delft University of Technology)H-Index: 2
#2Alexei Sharpanskykh (TU Delft: Delft University of Technology)H-Index: 13
Last. Richard Curran (TU Delft: Delft University of Technology)H-Index: 9
view all 3 authors...
Security risk management is essential for ensuring effective airport operations. This article introduces AbSRiM, a novel agent-based modeling and simulation approach to perform security risk management for airport operations that uses formal sociotechnical models that include temporal and spatial aspects. The approach contains four main steps: scope selection, agent-based model definition, risk assessment, and risk mitigation. The approach is based on traditional security risk management methodo...
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#1Leonel Aguilar (ETH Zurich)
#2Ver Bilano (Imperial College London)H-Index: 11
Last. Alexandra Carpen-Amarie (TU Wien: Vienna University of Technology)H-Index: 5
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Source
Jun 21, 2017 in PAAMS (Practical Applications of Agents and Multi-Agent Systems)
#1Stef Janssen (TU Delft: Delft University of Technology)H-Index: 2
#2Alexei Sharpanskykh (TU Delft: Delft University of Technology)H-Index: 13
Security Risk Assessment is commonly performed by using traditional methods based on linear probabilistic tools and informal expert judgements. These methods lack the capability to take the inherent dynamic and intelligent nature of attackers into account. To partially address the limitations, researchers applied game theory to study security risks. However, these methods still rely on traditional methods to determine essential model parameters, such as payoff values. To overcome the limitations...
4 CitationsSource
May 8, 2017 in AAMAS (Adaptive Agents and Multi-Agents Systems)
#1Stef Janssen (TU Delft: Delft University of Technology)H-Index: 2
We investigate the use of an Agent-based framework to identify and quantify the relationship between security and efficiency within airport terminals. In this framework, we define a novel Security Risk Assessment methodology that explicitly models attacker and defender behavior in a security scenario. It produces a security risk vector, quantifying the risks to the airport terminal. Efficiency is calculated in the same model using so-called key efficiency indicators. By using this framework, we ...
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