Tibor Bosse

Tibor Bosse
Radboud University | RU · Behavioural Science Institute

Professor

About

277
Publications
42,844
Reads
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3,161
Citations
Additional affiliations
February 2018 - present
Radboud University
Position
  • Professor (Full)

Publications

Publications (277)
Article
Digital health interventions for sexual health promotion have evolved considerably alongside innovations in technology. Despite these efforts, studies have shown that they do not consistently result in the desired sexual health outcomes. This could be attributed to low levels of user engagement, which can hinder digital health intervention effectiv...
Conference Paper
Full-text available
Open-domain large language models have progressed to generating natural-sounding and coherent text. Even though the generated texts appear human-like, the main stumbling block is that their output is never fully predictable, which runs the risk of resulting in harmful content such as false statements or inflammatory language. This makes it difficul...
Article
This article is part of a project that explores the potential of chatbots for providing online emotional support to humans tailored to stressors. Based on a number of empirical studies, we have developed a socially interactive agent able to have simple dialogues with stressed humans seeking for emotional support. In the current article, we address...
Article
Full-text available
There is a strong increase in the use of devices that measure physiological arousal through electrodermal activity (EDA). Although there is a long tradition of studying emotions during learning, researchers have only recently started to use EDA to measure emotions in the context of education and learning. This systematic review aimed to provide ins...
Article
Sharing helps children form and maintain relationships with other children. Yet, children born today interact not only with other children, but increasingly with robots as well. Little is known on whether and how children treat robots as recipients of prosocial acts. We thus investigated children’s sharing behavior towards robots. Specifically, we...
Presentation
Full-text available
We are studying the impact of AI (vs a human) making decisions about you on your Sense of Agency and the acceptance of both the decision and the decision maker
Article
Full-text available
Background Internet-based cognitive-behavioral therapy (iCBT) is more effective when it is guided by human support than when it is unguided. This may be attributable to higher adherence rates that result from a positive effect of the accompanying support on motivation and on engagement with the intervention. This protocol presents the design of a p...
Article
Robots are becoming an integral part of society, yet the extent to which we are pro-social towards these non-living objects is unclear. While previous research shows that we tend to take care of robots in high-risk, high-consequence situations, this has not been investigated in more day-to-day, low-consequence situations. Thus, we utilized an exper...
Conference Paper
Interacting with virtual reality agents (VR agents) becomes more and more common in the future. The present study investigated whether non-verbal mimicry leads to less resistance, and a more positive evaluation of the VR agent. Before evaluation of the VR agent, participants interacted with a VR agent which either mimicked or anti-mimicked their no...
Article
Doorstep scams, scams in which con artists tell convincing but fraudulent stories in order to enter the house of a victim and/or steal personal belongings or information, have a high impact on victims. These victims are often elderly people. Existing campaigns mostly focus on the behavioural aspects that help to prevent a doorstep scam from happeni...
Article
Full-text available
This work presents a simulation-based training application to enhance people's ability to express interpersonal stance using their voice. The results show that the application helps people to learn the principles of Leary's interpersonal stance theory, and distinguish between the eight basic stances. Nevertheless, it remains difficult for people to...
Chapter
Full-text available
The technological advancements in the field of chatbot research is booming. Despite this, it is still difficult to assess which social characteristics a chatbot needs to have for the user to interact with it as if it had a mind of its own. Review studies have highlighted that the main cause is the low number of research papers dedicated to this que...
Chapter
Many researchers are studying the application of computer-generated emotional support to increase well-being in humans. In this chapter, we investigate some challenges related to the development of effective stress support bots. We developed a chatbot for Facebook Messenger that, using IBM Watson’s text mining and machine learning capabilities, can...
Chapter
Chatbots are typically used in dialogue systems for various purposes such as customer service and information acquisition. This paper explores enhancement of social skills training for security guards with the use of chatbots. More specifically, we designed a chatbot using text and voice as input to study the acceptance and the impact of the system...
Article
Full-text available
Introduction: Sentiment analysis may be a useful technique to derive a user's emotional state from free text input, allowing for more empathic automated feedback in online cognitive behavioral therapy (iCBT) interventions for psychological disorders such as depression. As guided iCBT is considered more effective than unguided iCBT, such automated...
Chapter
Training of interpersonal communication skills is typically done using role play, by practising relevant scenarios with the help of professional actors. However, as a result of the rapid developments in human-computer interaction, there has been an increasing interest in the use of computers for training of social and communicative skills. This typ...
Conference Paper
To train public transport employees to deal with aggressivepassengers, simulation-based training can be a cost-effective instrument.Within this research a virtual reality training application for bus drivershas been developed. The application consists of 10 different scenariosthat can be used to practice how to act during confrontations with ag-gre...
Conference Paper
The role of emotions and other affective states within Human-Computer Interaction (HCI) is gaining importance. Introducing affect into computer applications typically makes these systems more efficient, effective and enjoyable. This paper presents a model that is able to extract interpersonal stance from vocal signals. To achieve this, a dataset of...
Article
The rapid development and increasing complexity of modern socio-technical systems suggest an urgent need for systemic safety analysis approaches because traditional linear models cannot cope with this complexity. In the aviation safety literature, among systemic accident and incident analysis methods, Systems Theoretic Accident Modelling and Proces...
Chapter
Full-text available
Human evacuation experiments can trigger distress, be unethical and present high costs. As a solution, computer simulations can predict the effectiveness of new emergency management procedures. This paper applies multi-agent simulation to measure the influence of staff members with diverse training levels on evacuation time. A previously developed...
Conference Paper
Full-text available
In this paper, a multi-agent simulation model is presented to investigate the dynamics of ‘mutual-support networks’: online social networks consisting of both humans and artificial agents. Via such networks, human users who are coping with stress can share their problems, via text messages, with human peers as well as ‘artificial friends’. Even tho...
Conference Paper
Full-text available
Human evacuation experiments can trigger distress, be unethical and present high costs. As a solution, computer simulations can predict the effectiveness of new emergency management procedures. This paper applies multi-agent simulation to measure the influence of staff members with diverse training levels on evacuation time. A previously developed...
Conference Paper
Full-text available
This paper introduces the concept of "virtual bad guys": intelligent virtual agents that take a negative or even aggressive stance towards the user. Although they pave the way to various interesting applications, it is hard to create virtual bad guys that are taken seriously by the user, since they are typically unable to apply serious sanctions. T...
Chapter
This exploratory study discusses how biofeedback can be displayed and used in the context of virtual agent-based social skills training. Using Virtual Reality, a prototype of an aggression de-escalation training application has been developed. The application simulates an adaptive scenario in which the user interacts with a threatening virtual conv...
Chapter
This paper describes several steps towards the development of an online agent (or socialbot) that provides emotional support to stressed users. In particular, we present an empirical study that was conducted with the aim to investigate how people help each other to cope with stressful situations via online social networks. To this end, around 10.00...
Chapter
Doorstep scams are scams, often happening at the front door, in which a con artist has a convincing, but fraudulent, story with the purpose of coming into your house and/or stealing money. Various campaigns to educate people exist, but they do not focus on the verbal skills people can use to prevent themselves from becoming a victim. This paper des...
Chapter
Human support is thought to increase adherence to internet-based interventions for common mental health disorders, but can be costly and reduce treatment accessibility. Embodied virtual agents may be used to deliver automated support, but while many solutions have been shown to be feasible, there is still little controlled research that empirically...
Chapter
Intelligent Virtual Agents (IVAs) become widely used for numerous applications, varying from healthcare decision support to communication training. In several of such applications, it is useful if IVAs have the ability to take a negative stance towards the user, for instance for anti-bullying or conflict management training. However, the believabil...
Article
Full-text available
Serious games are increasingly being used for training of social skills. The main idea is to create a virtual environment in which a trainee can interact with graphically embodied virtual characters. By designing scenarios in such way that the character’s behaviour provides direct feedback on the correctness of the trainee’s choices, an interactive...
Chapter
Emotion regulation, or the ability to regulate one’s own and other people’s emotions, is an important skill for human beings, enabling them to function adequately in their social environment. The development of computational models of emotion regulation opens up a range of interesting applications in human–computer interaction, varying from virtual...
Conference Paper
Conversational agents are increasingly being used for training of social skills. One of their most important benefits is their ability to provide natural interaction with humans. This work proposes to extend conversational agents’ benefits for social skills training by analysing the emotion conveyed by the user’s speech. For that, we developed a ne...
Conference Paper
Serious games are increasingly being used for training of communicative skills. The main idea is to create a virtual environment in which a trainee can interact with graphically embodied virtual characters. By designing scenarios in such way that the character’s behaviour provides direct feedback on the correctness of the trainee’s choices, an inte...
Conference Paper
This paper describes the first steps towards development and evaluation of an ‘artificial friend’, i.e., an intelligent agent that provides support via text messages in social media in order to alleviate the stress that users experience as a result of everyday problems. The agent consists of three main components: (1) a module that processes text m...
Article
Full-text available
Conversational agents are increasingly being used for training of social skills. One of their most important benefits is their ability to understand the user`s emotions, to be able to provide natural interaction with humans. However, to infer a conversation partner’s emotional state, humans typically make use of contextual information as well. This...
Conference Paper
An ongoing problem associated with sports such as football is the regular occurrence of aggressive behavior against referees. Campaigns and meetings for players and football clubs that are organized by the Dutch football federation must reduce aggression on the pitch. To support referees, this paper introduces a mobile application that simulates a...
Conference Paper
This research investigates whether (female and male) virtual negotiators experience a social backlash during negotiations with an economical outcome when they are using a negotiation style that is congruent with the opposite gender. An interactive turn-based negotiation using a virtual agent as employee is used in an experiment with 93 participants...
Conference Paper
Full-text available
A fire incident at a transport hub can cost many lives. To save lives, effective crisis management and prevention measures need to be taken. In this project, the effect of cultural factors in managing and preventing emergencies in public transport systems is analysed. An agent–based model of an evacuating crowd was created. Socio-cultural factors t...
Conference Paper
Full-text available
Train passengers can get stranded due to a variety of events, such as a delay, technical malfunctioning or a natural disaster. Stranded passengers can get frustrated, which could escalate in misbehaviours. Examples are verbal and physical violence or dangerous behaviours such as opening emergency exits and walking in unauthorized areas. In this wor...
Conference Paper
This paper presents an algorithm to automatically detect interpersonal stance in vocal signals. The focus is on two stances (referred to as ‘Dominant’ and ‘Empathic’) that play a crucial role in aggression de-escalation. To develop the algorithm, first a database was created with more than 1000 samples from 8 speakers from different countries. In a...
Conference Paper
Full-text available
A Virtual Reality based training can be an interesting method to teach crowd managers and emergency responders how to act in emergency situations under pressure. Compared to watching Two-Dimensional Video, Virtual Reality is assumed to induce stronger emotions and a more real-life experience of the emergency situation. To test this assumption, sixt...
Article
In this study, we investigate if a digital coach for low-literate learners that provides cognitive learning support based on scaffolding can be improved by adding affective learning support based on motivational interviewing, and social learning support based on small talk. Several knowledge gaps are identified: motivational interviewing and small...
Article
Full-text available
This paper introduces the design of an agent-based leadership support system exploiting a computational model for development of individuals or groups. It is to be used, for example, as a basis for systems to support a group leader in the development of individual group members or a group as a whole. Using a computational model for Situational Lead...
Chapter
Model-based reasoning approaches can be used to formalize and analyze (informal) theories from the field of criminology, to help gain more insight in criminological phenomena that were not clear based on just the informal theory. The analysis of the displacement of crime is an important research interest in criminological research. In this chapter,...
Book
This book contains a selection of the best papers that were presented at the 28th edition of the annual Benelux Conference on Artificial Intelligence, BNAIC 2016. The conference took place on November 10-11, 2016, in Hotel Casa 400 in Amsterdam. The conference was jointly organized by the University of Amsterdam and the Vrije Universiteit Amsterdam...
Conference Paper
Social media are an effective means for people to share everyday problems with their peers. Although this often leads to empathic responses which help alleviate the experienced stress, such peer support is not always available. As an alternative solution for such situations, this paper explores the possibilities to develop an ‘artificial friend’ th...
Conference Paper
Full-text available
1 Artificial Intelligence techniques are increasingly being used to develop smart training applications for professionals in various domains. This paper presents an intelligent training system that enables professionals in the public domain to practice their aggression de-escalation skills. The system is one of the main products of the STRESS proje...
Conference Paper
Full-text available
Serious games are increasingly being used for training of communicative skills. The main idea is to create a virtual environment in which a trainee can interact with graphically embodied virtual characters. By designing scenarios in such way that the character's behaviour provides direct feedback on the correctness of the trainee's choices, an inte...
Conference Paper
Full-text available
Public transport employees are confronted with aggressive behavior on a regular basis. As such encounters can have serious consequences, employees need to be well prepared, so that they know how to deal with incidents of aggression. The current paper describes an ongoing endeavor that is aimed at the development and evaluation of a simulation-based...
Conference Paper
Full-text available
Traditionally, Embodied Conversational Agents communicate with humans using dialogue systems based on conversation trees. To enhance the flexibility and variability of dialogues, this paper proposes an approach to integrate conversation trees with cognitive models. The approach is illustrated by a case study in the domain of aggression de-escalatio...
Conference Paper
Full-text available
Human space flight is a prototypical example of a complex, dynamic, and safety-critical domain in which missions are performed by collaborative teams of humans and technical systems. In such domains, intelligent electronic partners (ePartners) can play a useful role in supporting human-robot teams in their problem solving process whenever a non-nom...
Conference Paper
Embodied conversational agents (ECAs) have been put forward as a promising means for the training of social skills. The traditional approach to drive the behaviour of ECAs during human-agent dialogues is to use conversation trees. Although this approach is easy to use and very transparent, an important limitation of conversation trees is that the r...
Conference Paper
Being able to de-escalate aggressive behavior during face-to-face interactions is an important skill for employees in a variety of domains. To do this effectively, employees should learn to recognize the emotional state of their conversation partner. However, this task can be seriously hindered by the stress triggered by the aggressive encounter. T...
Conference Paper
Full-text available
The ability to de-escalate confrontations with aggressive individuals is a useful skill, in particular within professions in public domains. Nevertheless, offering appropriate training that enables students to develop such skills is a nontrivial matter. As a complementary approach to real-world training, the STRESS project proposes a simulation-bas...
Article
Full-text available
Most research into intelligent virtual agents focuses on agents with a positive stance towards the user. Nevertheless, the development of virtual agents that show aggressive behavior may also be interesting for a range of application domains, varying from aggression de-escalation training to anti-bullying education. However, ensuring that such aggr...
Article
Full-text available
To avoid the development of negative emotion in their teams, team leaders may benefit from being aware of the emotional dynamics of the team members. To this end, the use of intelligent computer systems that analyze emotional processes within teams is a promising direction. As a first step toward the development of such systems, this paper uses an...
Article
Full-text available
For professionals in military and law enforcement domains, learning to regulate one’s emotions under threatening circumstances is crucial. The STRESS project envisions a virtual reality-based system to enable such professionals to train their emotion regulation skills. To explore the possibilities for such a system, this article describes an experi...
Conference Paper
Full-text available
This paper compares population-based and agent-based simulation of the dynamics of group Situation Awareness. The question how Situation Awareness spreads among a team of agents is important for numerous applications. In this paper, a population-based and an agent-based model of this process are proposed, and applied to a case study in aviation. A...
Conference Paper
Full-text available
For professionals in various domains, training based on Virtual Reality can be an interesting method to improve their emotion regulation skills. However, for such a training system to be effective, it is essential to trigger the desired emotional state in the trainee. Hence, an important question is to what extent virtual stimuli have the ability t...
Conference Paper
Serious gaming based on Virtual Reality is a promising means for training of aggression de-escalation skills. By enabling trainees to interact with aggressive virtual characters that respond in a realistic manner to different communicative approaches, they can learn to apply the appropriate approach at the right time. To facilitate the development...
Article
Full-text available
To avoid the development of negative emotion in their teams, team leaders may benefit from being aware of the emotional dynamics of the team members. To this end, the use of intelligent computer systems that analyze emotional processes within teams is a promising direction. As a first step towards the development of such systems, this paper uses an...
Conference Paper
Full-text available
Aviation incidents often have a complex character in the sense that a number of different aspects of human and technical functioning come together in creating the incident. Usually only model constructs or computational agent models are available for each of these aspects separately. To obtain an overall model, these agent models have to be integra...
Article
Full-text available
To endow game characters with more realistic affective behavior, the notion of prospect-based emotions plays an important role: recent literature suggests that emotional states of such agents should not only be triggered by present stimuli, but also by anticipation on future stimuli, and evaluation of past stimuli in the context of these anticipati...