Approaching human-like spatial awareness in social robotics: an investigation of spatial interaction strategies with a receptionist robot

Holthaus P. Approaching human-like spatial awareness in social robotics: an investigation of spatial interaction strategies with a receptionist robot. Bielefeld: Universität Bielefeld.; 2014.This doctoral thesis investigates the influence of social signals in the spatial domain that aim to raise a robot’s awareness towards its human interlocutor. A concept of spatial awareness thereby extends the robot’s possibilities for expressing its knowledge about the situation as well as its own capabilities. As a result, especially untrained users can build up more appropriate expectations about the current situation which supposedly leads to a minimization of misunderstandings and thereby an enhancement of user experience. On the background of research that investigates communication among humans, relations are drawn in order to utilize gained insights for developing a robot that is capable of acting socially intelligent with regard to human-like treatment of spatial configurations and signals. In a study-driven approach, an integrated concept of spatial awareness is therefore proposed. An important aspect of that concept, which is founded in its spatial extent, lies in its aspiration to cover a holistic encounter between human and robot with the goal to improve user experience from the first sight until the end of reciprocal awareness. It describes how spatial configurations and signals can be perceived and interpreted in a social robot. Furthermore, it also presents signals and behavioral properties for such a robot that target at influencing said configurations and enhancing robot verbosity. In order to approve the concept’s validity in realistic settings, an interactive scenario is presented in the form of a receptionist robot to which it is applied. In the context of this setup, a comprehensive user study is conducted that verifies the implementation of spatial awareness to be beneficial for an interaction with humans that are naive to the subject. Furthermore, the importance of addressing an entire encounter in human-robot interaction is confirmed as well as a strong interdependency of a robot’s social signals among each other

Complex Pleasures: Designing Optional interactions for Public Spaces

This research aims to contribute to knowledge about the design of interactive systems sited in public spaces. In particular, the study concerns "optional interactions" where systems invite interaction from passers-by. These systems are action-orientated ratherthan goal-oriented, are designed to encourage engagement, and offer positive and rewarding experiences through the activity of interaction. This is in contrast to systems that provide functional services that are actively sought out by people, such as ticketvending machines or cash dispensers.This thesis asserts that this kind of optimal, designed experience can be examined and understood through comparisons with approaches taken by new-media artists working in interactive, technological media. Artists have different priorities, and use different methods to those employed by Human-Computer Interaction researchers, and this study aims to further understanding of the potential of these artistic approaches for interaction designers.The setting for these optional interaction systems is any public or semi-public environment, including museums, galleries, shopping centres, foyers and urban settings. As well as understanding the public and social context of these interactions, the experiential aspects of interaction are of primary importance in this study. The work is conducted with the aim of providing practical and theoretical resources to interaction designers tasked with creating engaging interactive systems that initiate and sustain experiences that are highly regarded by the participant. The thesis presents a designframework titled the Optional Interactions Design Framework