Joachim de Greeff

Joachim de Greeff
Delft University of Technology | TU · Department of Intelligent Systems

PhD

About

36
Publications
11,077
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609
Citations
Additional affiliations
September 2012 - August 2014
University of Plymouth
Position
  • PostDoc Position
September 2008 - August 2012
University of Plymouth
Position
  • PhD

Publications

Publications (36)
Article
Full-text available
Lead partner: FDDO Revision: final Dissemination level: PU This document describes the work done in Year 3 in WP3: the development of persistent models for distributed joint situation awareness. This includes the ongoing TDS development itself from technical point of view as well as in conjunction with the ontology-based approach for an improved SA...
Conference Paper
We report on a field exercise in which a team of human fire-fighters used robots to enact a realistic disaster response mission in an industrial environment. In this exercise we evaluated the technical working of an integrated robotic system and gained insights concerning the manner in which robots and information streams can be utilized effectivel...
Conference Paper
Full-text available
As robots that share working and living environments with humans proliferate, human-robot teamwork (HRT) is becoming more relevant every day. By necessity, these HRT dynamics develop over time, as HRT can hardly happen only in the moment. What theories, algorithms, tools, computational models and design methodologies enable effective and safe longi...
Conference Paper
We report on the latest large-scale disaster-response exercise conducted by our project, which involves a robotic system with both ground robots (UGVs) and aerial robots (UAVs). In particularly, we focus on aspects related to Human-Robot teaming, and the uptake of new technology by end-users.
Chapter
As robots are increasingly used in Search and Rescue (SAR) missions, it becomes highly relevant to study how SAR robots can be developed and deployed in a responsible way. In contrast to some other robot application domains, e.g. military and healthcare, the ethics of robot-assisted SAR are relatively under examined. This paper aims to fill this ga...
Chapter
Recent years have seen a growing interest in applying insights from developmental psychology to build artificial intelligence and robotic systems. This endeavour, called developmental robotics, not only is a novel method of creating artificially intelligent systems, but also offers a new perspective on the development of human cognition. While once...
Article
Full-text available
Social learning is a powerful method for cultural propagation of knowledge and skills relying on a complex interplay of learning strategies, social ecology and the human propensity for both learning and tutoring. Social learning has the potential to be an equally potent learning strategy for artificial systems and robots in specific. However, given...
Article
Full-text available
This paper describes the project TRADR: Long-Term Human-Robot Teaming for Robot Assisted Disaster Response. Experience shows that any incident serious enough to require robot involvement will most likely involve a sequence of sorties over several hours, days and even months. TRADR focuses on the challenges that thus arise for the persistence of env...
Conference Paper
The design of cognitive agents involves a knowledge representation (KR) to formally represent and manipulate information relevant for that agent. In practice, agent programming frameworks are dedicated to a specific KR, limiting the use of other possible ones. In this paper we address the issue of creating a flexible choice for agent programmers re...
Conference Paper
Full-text available
Developing collaborative robots that can productively and safely operate out of isolation in uninstrumented, human-populated environments is an important goal for the field of robotics. The development of such agents, those that handle the dynamics of human environments and the complexities of interpreting human interaction, is a strong focus withi...
Conference Paper
Full-text available
The TRADR project aims at developing methods and models for human-robot teamwork, enabling robots to operate in search & rescue environments alongside humans as teammates, rather than as tools. Through a user-centered cognitive engineering method, human-robot teamwork is analyzed, modeled, implemented and evaluated in an iterative fashion. Importan...
Conference Paper
Full-text available
A field study was conducted in which CRI activities developed by the ALIZ-E project were tested with the project's primary user group: children with diabetes. This field study resulted in new insights in the modalities and roles a robot aimed at CRI in a healthcare setting might utilise, while in addition (re-)assessed some practises and technologi...
Conference Paper
ALIZ-E is a Europe-wide project focusing on long-term child-robot interaction, specifically as a means of educating diabetic children on their condition. This video showcases a recent field study at "SugarKidsClub", a camp devoted to helping 7-12 year-olds handle type-1 diabetes. A wide range of CRI activities developed by ALIZ-E were employed, inc...
Conference Paper
Full-text available
In human relationships, responsiveness---behaving in a sensitive manner that is supportive of another person's needs---plays a major role in any interaction that involves effective communication, caregiving, and social support. Perceiving one's partner ...
Conference Paper
Full-text available
In this contribution, we describe a method of analysing and interpreting the direction and timing of a human's gaze over time towards a robot whilst interacting. Based on annotated video recordings of the interactions, this post-hoc analysis can be used to determine how this gaze behaviour changes over the course of an interaction, following from t...
Article
Full-text available
The use of concepts is fundamental to human-level cognition, but there remain a number of open questions as to the structures supporting this competence. Specifically, it has been shown that humans use concept prototypes, a flexible means of representing concepts such that it can be used both for categorisation and for similarity judgements. In the...
Conference Paper
Full-text available
Child-Robot Interaction (cHRI) is a promising point of entry into the rich challenge that social HRI is. Starting from three years of experiences gained in a cHRI research project, this paper offers a view on the opportunities offered by letting robots interact with children rather than with adults and having the interaction in real-world circumsta...
Article
With increasingly competent robotic systems desired and required for social human–robot interaction comes the necessity for more complex means of control. Cognitive architectures (specifically the perspective where principles of structure and function are sought to account for multiple cognitive competencies) have only relatively recently been cons...
Chapter
A case study is presented in which a socially capable robot played multiple activities during multiple sessions with hospitalised children. In this paper we show how an environment was created in which children engage with the robot and feel at liberty to express their preferences regarding which activities to play. Valuable lessons regarding robot...
Conference Paper
In this paper we describe how a robot may benefit from active learning in a human-robot tutelage setting. Rather than passively absorbing conceptual knowledge, the robot learner actively tries to influence the human teacher in order to improve its learning experience. We compare the performance of agents that employ this strategy in simulation to a...
Conference Paper
Full-text available
The use of concepts is regarded as fundamental to human-level cognition, but there remain a number of open questions as to the functions of, and structures supporting, this competence. In the context of autonomous cognitive systems, the processes by which such concept functionality could be acquired would be particularly useful - indeed, a developm...
Article
Full-text available
The use of concepts is a fundamental capacity underlying com-plex, human-level cognition. A number of theories have ex-plored the means of concept representation and their links to lower-level features, with one notable example being the Con-ceptual Spaces theory. While these provide an account for such essential functional processes as prototypes...
Conference Paper
Full-text available
This paper discusses the effect of different embodiments on the development of shared meanings between agents, and how language can help to overcome this difference. Using color as an exemplary case, we discuss how despite perceptual differences agents can develop a common understanding of color categories. This phenomenon is investigated through c...
Conference Paper
form only given. This video is about a new kind of robotic head. Through back-projection of a computer generated video into a half-translucent mask, the LightHead robotic head has many advantages compared to tradition mechatronic robotic faces. These advantages are most notably the versatility and ease of controlling facial expressions and creating...
Article
Full-text available
In this paper, we discuss the requirements of cognitive architectures for epigenetic robotics, and highlight the wider role that they can play in the development of the cognitive sciences. We discuss the ambitious goals of ongoing development, scalability, concept use and transparency, and introduce the epigenetic robotics architecture (ERA) as a f...
Article
This paper discusses the effect of different embodiments on the development of shared meanings between agents, and how language can help to overcome this difference. Using color as an exemplary case, we discuss how despite perceptual differences agents can develop a common understanding of color categories. This phenomenon is investigated through c...
Conference Paper
Full-text available
Reading gaze direction is important in human-robot interactions as it supports, among others, joint attention and non-linguistic interaction. While most previous work focuses on implementing gaze direction reading on the robot, little is known about how the human partner in a human-robot interaction is able to read gaze direction from a robot. The...
Article
Full-text available
For any cognitive system to behave properly within a dynamic, ever changing natural environment, the ability to work with concepts is quite important. Humans display an ability to talk about, reason over, infer and generate new concepts with remarkable ease, but for artificial agents this is far from trivial. In the case of human concept learning,...
Article
Full-text available
In this paper, we discuss the requirements of cogni-tive architectures for epigenetic robotics, and highlight the wider role that they can play in the development of the cognitive sciences. We discuss the ambitious goals of ongoing development, scal-ability, concept use and transparency, and introduce the epigenetic robotics architecture (ERA) as a...
Article
Full-text available
This work investigates the conditions in which a popu-lation of embodied agents evolved for the ability to display coordi-nated/cooperative skills can develop an ability to communicate, whether and to what extent the evolved communication system can complexifies during the course of the evolutionary process, and how the character-istics of such com...
Conference Paper
Full-text available
This paper presents a new implementation of a robot face using retro-projection of a video stream onto a semitransparent facial mask. The technology is contrasted against mechatronic robot faces, of which Kismet is a typical example, and android robot faces, as used on the Ishiguro robots. The paper highlights the strengths of Retro-projected Anima...
Article
Full-text available
This paper presents a discussion and simulation results which support the case for interaction during the acquisition of conceptual knowledge. Taking a developmental perspective, we first review a number of relevant insights on word-meaning acquisition in young children and specifically focus on concept learning supported by linguistic input. We pr...
Article
Full-text available
In this paper we give a brief description of concep-tual theories, both from a human and a machine perspective. We discuss recent insights from developmental studies on the influence of language and other social factors on concept learning. Based on this we describe a model which incorporates some important aspects and is able to support concept le...
Article
Full-text available
Reading gaze direction is important in proto-communicative child-caretaker interac-tions as it supports, among others, joint at-tention and non-linguistic interaction. It has been argued that reading gaze direction, and by extension, joint attention is important for developmental robotics. While most work has focused on implementing gaze direction...

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