Reasoning about Cognitive Trust in Human-Robot Interactions
Marta Kwiatkowska , University of Oxford
We are witnessing accelerating technological advances in autonomous systems, of which driverless cars and home-assistive robots are prominent examples. As mobile autonomy becomes embedded in our society, we increasingly often depend on decisions made by mobile autonomous robots and interact with them socially. Key questions that need to be asked are how to ensure safety and trust in such interactions. How do we know when to trust a robot? How much should we trust? And how much should the robots trust us? This paper will give an overview of a probabilistic logic for expressing trust between human or robotic agents such as “agent A has 99% trust in agent B’s ability or willingness to perform a task” and the role it can play in explaining trust-based decisions and agent’s dependence on one another. The logic is founded on a probabilistic notion of belief, supports cognitive reasoning about goals and intentions, and admits quantitative verification via model checking, which can be used to evaluate such trust in human-robot interactions. The paper concludes by summarising recent advances and future challenges for modelling and verification in this important field.
Marta Kwiatkowska is Professor of Computing Systems and Fellow of Trinity College, University of Oxford. Prior to this she was Professor in the School of Computer Science at the University of Birmingham, Lecturer at the University of Leicester and Assistant Professor at the Jagiellonian University in Cracow, Poland. Kwiatkowska has made fundamental contributions to the theory and practice of model checking for probabilistic systems, focusing on automated techniques for verification and synthesis from quantitative specifications. She led the development of the PRISM model checker (www.prismmodelchecker.org), the leading software tool in the area and winner of the HVC Award 2016. Probabilistic model checking has been adopted in many diverse fields, including distributed computing, wireless networks, security, robotics, game theory, systems biology, DNA computing and nanotechnology, with genuine flaws found and corrected in real-world protocols. Kwiatkowska awarded an honorary doctorate from KTH Royal Institute of Technology in Stockholm in 2014 and the Royal Society Milner Medal in 2018. Her recent work was supported by the ERC Advanced Grant VERIWARE “From software verification to ‘everyware’ verification” and the EPSRC Programme Grant on Mobile Autonomy. She is a Fellow of ACM and Member of Academia Europea.