Human–robot interaction

Human–robot interaction is the study of interactions between humans and robots. It is often referred as HRI by researchers. Human–robot interaction is a multidisciplinary field with contributions from human–computer interaction, artificial intelligence, robotics, natural language understanding, design, humanities and social sciences.

Origins

Human–robot interaction has been a topic of both science fiction and academic speculation even before any robots existed. Because much of active HRI development depends on natural language processing, many aspects of HRI are continuations of human communications, a field of research which is much older than robotics.

The origin of HRI as a discrete problem was stated by 20th-century author Isaac Asimov in 1941, in his novel I, Robot. He states the Three Laws of Robotics as:

  1. A robot may not injure a human being or, through inaction, allow a human being to come to harm.
  2. A robot must obey the orders given it by human beings except where such orders would conflict with the First Law.
  3. A robot must protect its own existence as long as such protection does not conflict with the First or Second Law.[1]

These three laws provide an overview of the goals engineers and researchers hold for safety in the HRI field, although the fields of robot ethics and machine ethics are more complex than these three principles. However, generally human-robot interaction prioritizes the safety of humans that interact with potentially dangerous robotics equipment. Solutions to this problem range from the philosophical approach of treating robots as ethical agents (individuals with moral agency), to the practical approach of creating safety zones. These safety zones use technologies such as lidar to detect human presence or physical barriers to protect humans by preventing any contact between machine and operator.[2]

Although initially robots in the human-robot interaction field required some human intervention to function, research has expanded this to the extent that fully autonomous systems are now far more common than in the early 2000s.[3] Autonomous systems include from simultaneous localization and mapping systems which provide intelligent robot movement to natural language processing and natural-language generation systems which allow for natural, human-esque interaction which meet well-defined psychological benchmarks. [4]

Anthropomorphic robots (machines which imitate human body structure) are better described by the biomimetics field, but overlap with HRI in many research applications. Examples of robots which demonstrate this trend include Willow Garage's PR2 robot, the NASA Robonaut, and Honda ASIMO. However, robots in the human-robot interaction field are not limited to human-like robots: Paro and Kismet are both robots designed to elicit emotional response from humans, and so fall into the category of human-robot interaction[5].

Goals in HRI range from industrial manufacturing through Cobots, medical technology through rehabilitation, autism intervention, and elder care devices, entertainment, human augmentation, and human convenience.[6] Future research therefore covers a wide range of fields, much of which focuses on assistive robotics, robot-assisted search-and-rescue, and space exploration. [7]

The goal of friendly human–robot interactions
Kismet can produce a range of facial expressions.

Robots are artificial agents with capacities of perception and action in the physical world often referred by researchers as workspace. Their use has been generalized in factories but nowadays they tend to be found in the most technologically advanced societies in such critical domains as search and rescue, military battle, mine and bomb detection, scientific exploration, law enforcement, entertainment and hospital care.

These new domains of applications imply a closer interaction with the user. The concept of closeness is to be taken in its full meaning, robots and humans share the workspace but also share goals in terms of task achievement. This close interaction needs new theoretical models, on one hand for the robotics scientists who work to improve the robots utility and on the other hand to evaluate the risks and benefits of this new "friend" for our modern society.

With the advance in AI, the research is focusing on one part towards the safest physical interaction but also on a socially correct interaction, dependent on cultural criteria. The goal is to build an intuitive, and easy communication with the robot through speech, gestures, and facial expressions.

Dautenhahn refers to friendly Human–robot interaction as "Robotiquette" defining it as the "social rules for robot behaviour (a ‘robotiquette’) that is comfortable and acceptable to humans"[8] The robot has to adapt itself to our way of expressing desires and orders and not the contrary. But every day environments such as homes have much more complex social rules than those implied by factories or even military environments. Thus, the robot needs perceiving and understanding capacities to build dynamic models of its surroundings. It needs to categorize objects, recognize and locate humans and further recognize their emotions. The need for dynamic capacities pushes forward every sub-field of robotics.

Furthermore, by understanding and perceiving social cues, robots can enable collaborative scenarios with humans. For example, with the rapid rise of personal fabrication machines such as desktop 3d printers, laser cutters, etc., entering our homes, scenarios may arise where robots can collaboratively share control, co-ordinate and achieve tasks together. Industrial robots have already been integrated into industrial assembly lines and are collaboratively working with humans. The social impact of such robots have been studied [9] and has indicated that workers still treat robots and social entities, rely on social cues to understand and work together.

On the other end of HRI research the cognitive modelling of the "relationship" between human and the robots benefits the psychologists and robotic researchers the user study are often of interests on both sides. This research endeavours part of human society. For effective human – humanoid robot interaction[10] numerous communication skills[11] and related features should be implemented in the design of such artificial agents/systems.

General HRI research

HRI research spans a wide range of fields, some general to the nature of HRI.

Methods for perceiving humans

Methods for perceiving humans in the environment are based on sensor information. Research on sensing components and software led by Microsoft provide useful results for extracting the human kinematics (see Kinect). An example of older technique is to use colour information for example the fact that for light skinned people the hands are lighter than the clothes worn. In any case a human modelled a priori can then be fitted to the sensor data. The robot builds or has (depending on the level of autonomy the robot has) a 3D mapping of its surroundings to which is assigned the humans locations.

Most methods intend to build a 3D model through vision of the environment. The proprioception sensors permit the robot to have information over its own state. This information is relative to a reference.

A speech recognition system is used to interpret human desires or commands. By combining the information inferred by proprioception, sensor and speech the human position and state (standing, seated). In this matter, Natural language processing is concerned with the interactions between computers and human (natural) languages, in particular how to program computers to process and analyze large amounts of natural language data. For instance, neural network architectures and learning algorithms that can be applied to various natural language processing tasks including part-of-speech tagging, chunking, named entity recognition, and semantic role labeling.[12]

Methods for motion planning

Motion planning in dynamic environments is a challenge that can at the moment only be achieved for robots with 3 to 10 degrees of freedom. Humanoid robots or even 2 armed robots which can have up to 40 degrees of freedom are unsuited for dynamic environments with today's technology. However lower-dimensional robots can use the potential field method to compute trajectories which avoid collisions with humans.

Cognitive models and theory of mind

Humans exhibit negative social and emotional responses as well as decreased trust toward some robots that closely, but imperfectly, resemble humans; this phenomenon has been termed the "Uncanny Valley."[13] However recent research in telepresence robots has established that mimicking human body postures and expressive gestures has made the robots likeable and engaging in a remote setting.[14] Further, the presence of a human operator was felt more strongly when tested with an android or humanoid telepresence robot than with normal video communication through a monitor.[15]

While there is a growing body of research about users' perceptions and emotions towards robots, we are still far from a complete understanding. Only additional experiments will determine a more precise model.

Based on past research, we have some indications about current user sentiment and behavior around robots:[16][17]

  • During initial interactions, people are more uncertain, anticipate less social presence, and have fewer positive feelings when thinking about interacting with robots, and prefer to communicate with a human. This finding has been called the human-to-human interaction script.
  • It has been observed that when the robot performs a proactive behaviour and does not respect a "safety distance" (by penetrating the user space) the user sometimes expresses fear. This fear response is person-dependent.
  • It has also been shown that when a robot has no particular use, negative feelings are often expressed. The robot is perceived as useless and its presence becomes annoying.
  • People have also been shown to attribute personality characteristics to the robot that were not implemented in software.

Methods for human-robot coordination

A large body of work in the field of human-robot interaction has looked at how humans and robots may better collaborate. The primary social cue for humans while collaborating is the shared perception of an activity, to this end researchers have investigated anticipatory robot control through various methods including: monitoring the behaviors of human partners using eye tracking, making inferences about human task intent, and proactive action on the part of the robot.[18] The studies revealed that the anticipatory control helped users perform tasks faster than with reactive control alone.

A common approach to program social cues into robots is to first study human-human behaviors and then transfer the learning. For example, coordination mechanisms in human-robot collaboration[19] are based on work in neuroscience[20] which examined how to enable joint action in human-human configuration by studying perception and action in a social context rather than in isolation. These studies have revealed that maintaining a shared representation of the task is crucial for accomplishing tasks in groups. For example, the authors have examined the task of driving together by separating responsibilities of acceleration and braking i.e., one person is responsible for accelerating and the other for braking; the study revealed that pairs reached the same level of performance as individuals only when they received feedback about the timing of each other's actions. Similarly, researchers have studied the aspect of human-human handovers with household scenarios like passing dining plates in order to enable an adaptive control of the same in human-robot handovers.[21] Most recently, researchers have studied a system that automatically distributes assembly tasks among co-located workers to improve co-ordination.[22]

Application Areas

The application areas of human-robot interaction include robotic technologies that are used by humans for industry, medicine, and companionship, among other purposes.

Industrial Robots
This is an example of industrial collaborative robot, Sawyer, on the factory floor working alongside humans.

Industrial robots have been implemented to collaborate with humans to perform industrial manufacturing tasks. While humans have the flexibility and the intelligence to consider different approaches to solve the problem, choose the best option among all choices, and then command robots to perform assigned tasks, robots are able to be more precise and more consistent in performing repetitive and dangerous work.[23] Together, the collaboration of industrial robots and humans demonstrates that robots have the capabilities to ensure efficiency of manufacturing and assembling.[23] However, there are persistent concerns about the safety of human-robot collaboration, since industrial robots have the ability to move heavy objects and operate often dangerous and sharp tools, quickly and with force. As a result, this presents a potential threat to the people who work in the same workspace.[23]

Medical Robots

Rehabilitation
Researchers from University at Texas demonstrated a rehabilitation robot in helping hand movements.

A rehabilitation robot is an example of a robot-aided system implemented in health care. This type of robot would aid stroke survivors or individuals with neurological impairment to recover their hand and finger movements.[24][25] In the past few decades, the idea of how human and robot interact with each other is one factor that has been widely considered in the design of rehabilitation robots.[25] For instance, human-robot interaction plays an important role in designing exoskeleton rehabilitation robots since the exoskeleton system makes direct contact with humans’ body.[24]

Elder Care and Companion Robot

Nursing robots are aimed to provide assistance to elderly people who may have faced a decline in physical and cognitive function, and, consequently, developed psychosocial issues.[26] By assisting in daily physical activities, physical assistance from the robots would allow the elderly to have a sense of autonomy and feel that they are still able to take care of themselves and stay in their own homes.[26]

This is an exhibition at the Science Museum, London that demonstrates the robots for Autism children as their toys in hopes for helping autism children to pick up social cues from the facial expression.[27]

Social Robots

Autism Intervention

Over the past decade, human-robot interaction has shown promising outcomes in autism intervention.[28] Children with autism spectrum disorders (ASD) are more likely to connect with robots than humans, and using social robots is considered to be a beneficial approach to help these children with ASD.[28] However, social robots that are used to intervene in children's ASD are not viewed as viable treatment by clinical communities because the study of using social robots in ASD intervention, often, does not follow standard research protocol.[28] In addition, the outcome of the research could not demonstrate a consistent positive effect that could be considered as evidence-based practice (EBP) based on the clinical systematic evaluation.[28] As a result, the researchers have started to establish guidelines which suggest how to conduct studies with robot-mediated intervention and hence produce reliable data that could be treated as EBP that would allow clinicians to choose to use robots in ASD intervention.[28]

Automatic Driving

A specific example of human-robot interaction is the human-vehicle interaction in automated driving. The goal of human-vehicle cooperation is to ensure safety, security, and comfort in automated driving systems.[29] The continued improvement in this system and the progress in advancements towards highly and fully automated vehicles aim to make the driving experience safer and more efficient in which humans do not need to intervene in the driving process when there is an unexpected driving condition such as a pedestrian walking across the street when it is not supposed to.[29]

This drone is an example of UAV that could be used to locate a missing person in the mountain for example.

Search and Rescue

Unmanned Aerial Vehicles (UAV) and Unmanned Underwater Vehicles (UUV) have the potential to assist search and rescue work in wilderness areas, such as locating a missing person remotely from the evidence that they left in surrounding areas.[30][31] The system integrates autonomy and information, such as coverage maps, GPS information and quality search video, to support humans performing the search and rescue work efficiently in the given limited time.[30][31]

The project "Moonwalk" is aimed to simulate the manned mission to Mars and to test the robot-astronaut cooperation in an analogue environment.

Space Exploration

Humans have been working on achieving the next breakthrough in space exploration, such as a manned mission to Mars.[32] This challenge identified the need for developing planetary rovers that are able to assist astronauts and support their operations during their mission.[32] The collaboration between rovers, unmanned aerial vehicles, and humans enables leveraging capabilities from all sides and optimizes task performance.[32]

See also

Robotics

Technology

Psychology

Properties

Bartneck and Okada[33] suggest that a robotic user interface can be described by the following four properties:

Tool – toy scale
  • Is the system designed to solve a problem effectively or is it just for entertainment?
Remote control – autonomous scale
  • Does the robot require remote control or is it capable of action without direct human influence?
Reactive – dialogue scale
  • Does the robot rely on a fixed interaction pattern or is it able to have dialogue — exchange of information — with a human?
Anthropomorphism scale
  • Does it have the shape or properties of a human?

Conferences

ACE – International Conference on Future Applications of AI, Sensors, and Robotics in Society

The International Conference on Future Applications of AI, Sensors, and Robotics in Society explore the state of the art research, highlighting the future challenges as well as the hidden potential behind the technologies. The accepted contributions to this conference will be published annually in the special edition of the Journal of Future Robot Life.

International Conference on Social Robotics

The International Conference on Social Robotics is a conference for scientists, researchers, and practitioners to report and discuss the latest progress of their forefront research and findings in social robotics, as well as interactions with human beings and integration into our society.

  • ICSR2009, Incheon, Korea in collaboration with the FIRA RoboWorld Congress
  • ICSR2010, Singapore
  • ICSR2011, Amsterdam, Netherlands

International Conference on Human-Robot Personal Relationships
  • HRPR2008, Maastricht
  • HRPR 2009, Tilburg. Keynote speaker was Hiroshi Ishiguro.
  • HRPR2010, Leiden. Keynote speaker was Kerstin Dautenhahn.

International Congress on Love and Sex with Robots

The International Congress on Love and Sex with Robots is an annual congress that invites and encourages a broad range of topics, such as AI, Philosophy, Ethics, Sociology, Engineering, Computer Science, Bioethics.

The earliest academic papers on the subject were presented at the 2006 E.C. Euron Roboethics Atelier, organized by the School of Robotics in Genoa, followed a year later by the first book – “Love and Sex with Robots” - published by Harper Collins in New York. Since that initial flurry of academic activity in this field the subject has grown significantly in breadth and worldwide interest. Three conferences on Human-Robot Personal Relationships were held in the Netherlands during the period 2008-2010, in each case the proceedings were published by respected academic publishers, including Springer-Verlag. After a gap until 2014 the conferences were renamed as the “International Congress on Love and Sex with Robots”, which have previously taken place at the University of Madeira in 2014; in London in 2016 and 2017; and in Brussels in 2019. Additionally, the Springer-Verlag “International Journal of Social Robotics”, had, by 2016, published articles mentioning the subject, and an open access journal called “Lovotics” was launched in 2012, devoted entirely to the subject. The past few years have also witnessed a strong upsurge of interest by way of increased coverage of the subject in the print media, TV documentaries and feature films, as well as within the academic community.

The International Congress on Love and Sex with Robots provides an excellent opportunity for academics and industry professionals to present and discuss their innovative work and ideas in an academic symposium.

  • 2020, Berlin, Germany
  • 2019, Brussels, Belgium
  • 2017, London, United Kingdom
  • 2016, London, United Kingdom
  • 2014, Madeira, Portugal

International Symposium on New Frontiers in Human-Robot Interaction

This symposium is organized in collaboration with the Annual Convention of the Society for the Study of Artificial Intelligence and Simulation of Behaviour.

  • 2015, Canterbury, United Kingdom
  • 2014, London, United Kingdom
  • 2010, Leicester, United Kingdom
  • 2009, Edinburgh, United Kingdom

IEEE International Symposium in Robot and Human Interactive Communication

The IEEE International Symposium on Robot and Human Interactive Communication ( RO-MAN ) was founded in 1992 by Profs. Toshio Fukuda, Hisato Kobayashi, Hiroshi Harashima and Fumio Hara. Early workshop participants were mostly Japanese, and the first seven workshops were held in Japan. Since 1999, workshops have been held in Europe and the United States as well as Japan, and participation has been of international scope.

ACM/IEEE International Conference on Human-Robot Interaction

This conference is amongst the best conferences in the field of HRI and has a very selective reviewing process. The average acceptance rate is 26% and the average attendance is 187. Around 65% of the contributions to the conference come from the US and the high level of quality of the submissions to the conference becomes visible by the average of 10 citations that the HRI papers attracted so far.[34]

  • HRI 2006 in Salt Lake City, Utah, USA, Acceptance Rate: 0.29
  • HRI 2007 in Washington, D.C., USA, Acceptance Rate: 0.23
  • HRI 2008 in Amsterdam, Netherlands, Acceptance Rate: 0.36 (0.18 for oral presentations)
  • HRI 2009 in San Diego, CA, USA, Acceptance Rate: 0.19
  • HRI 2010 in Osaka, Japan, Acceptance Rate: 0.21
  • HRI 2011 in Lausanne, Switzerland, Acceptance Rate: 0.22 for full papers
  • HRI 2012 in Boston, Massachusetts, USA, Acceptance Rate: 0.25 for full papers
  • HRI 2013 in Tokyo, Japan, Acceptance Rate: 0.24 for full papers
  • HRI 2014 in Bielefeld, Germany, Acceptance Rate: 0.24 for full papers
  • HRI 2015 in Portland, Oregon, USA, Acceptance Rate: 0.25 for full papers
  • HRI 2016 in Christchurch, New Zealand, Acceptance Rate: 0.25 for full papers
  • HRI 2017 in Vienna, Austria, Acceptance Rate: 0.24 for full papers
  • HRI 2018 in Chicago, USA, Acceptance Rate: 0.24 for full papers

International Conference on Human-Agent Interaction

There are many conferences that are not exclusively HRI, but deal with broad aspects of HRI, and often have HRI papers presented.

  • IEEE-RAS/RSJ International Conference on Humanoid Robots (Humanoids)
  • Ubiquitous Computing (UbiComp)
  • IEEE/RSJ International Conference on Intelligent Robots and Systems (IROS)
  • Intelligent User Interfaces (IUI)
  • Computer Human Interaction (CHI)
  • American Association for Artificial Intelligence (AAAI)
  • INTERACT

There are currently two dedicated HRI Journals

  • International Journal of Social Robotics
  • The open access Journal of Human-Robot Interaction

and there are several more general journals in which one will find HRI articles.

There are several books available that specialise on Human-Robot Interaction. While there are several editing books, only a few dedicated texts are available:

  • Human-Robot Interaction - An Introduction by Christoph Bartneck, Tony Belpaeme, Friederike Eyssel, Takayuki Kanda, Merel Keijsers, Selma Šabanović, Cambridge University Press (PDF is available for free)[35]
  • Human-Robot Interaction in Social Robotics by Takayuki Kanda & Hiroshi Ishiguro, CRC Press[36]
  • Social Robotics by Breazeal C., Dautenhahn K., Kanda T., Springer (chapter in an extensive handbook)[37]

Footnotes
  1. Asimov, Isaac (1950). "Runaround". I, Robot (The Isaac Asimov Collection ed.). New York City: Doubleday. p. 40. ISBN 978-0-385-42304-5. This is an exact transcription of the laws. They also appear in the front of the book, and in both places there is no "to" in the 2nd law. Note that this snippet has been copy-pasted from Three Laws of Robotics
  2. Hornbeck, Dan (2008-08-21). "Safety in Automation". www.machinedesign.com. Retrieved 2020-06-12.
  3. Scholtz, Jean. "Evaluation methods for human-system performance of intelligent systems". Proceedings of the 2002 Performance Metrics for Intelligent Systems (PerMIS) Workshop. doi:10.1007/s10514-006-9016-5.
  4. Kahn, Peter H.; Ishiguro, Hiroshi; Friedman, Batya; Kanda, Takayuki (2006-09-08). "What is a Human? - Toward Psychological Benchmarks in the Field of Human-Robot Interaction". ROMAN 2006 - The 15th IEEE International Symposium on Robot and Human Interactive Communication: 364–371. doi:10.1109/ROMAN.2006.314461.
  5. "CNN.com - Meet Paro, the therapeutic robot seal - Nov. 20, 2003". www.cnn.com. Retrieved 2020-06-12.
  6. "The future of human-robot interaction". as.cornell.edu. Retrieved 2020-06-12.
  7. "3: Emergence of HRI as a Field | Human-Robot Interaction". Retrieved 2020-06-12.
  8. Dautenhahn, Kerstin (29 April 2007). "Socially intelligent robots: dimensions of human–robot interaction". Philosophical Transactions of the Royal Society B: Biological Sciences. 362 (1480): 679–704. doi:10.1098/rstb.2006.2004. PMC 2346526. PMID 17301026.
  9. Sauppé, Allison; Mutlu, Bilge (2015). "The Social Impact of a Robot Co-Worker in Industrial Settings". Proceedings of the 33rd Annual ACM Conference on Human Factors in Computing Systems - CHI '15. pp. 3613–3622. doi:10.1145/2702123.2702181. ISBN 978-1-4503-3145-6.
  10. Human-Robot Interaction.
  11. Bubaš, Goran; Lovrenčić, Alen (2002). Implications of interpersonal communication competence research on the design of artificial behavioral systems that interact with humans. Proceedings of the 6th International Conference on Intelligent Engineering Systems - INES 2002.
  12. Collobert, Ronan; Weston, Jason; Bottou, Léon; Karlen, Michael; Kavukcuoglu, Koray; Kuksa, Pavel (2011). Natural Language Processing (Almost) from Scratch. OCLC 963993063.
  13. Mathur, Maya B.; Reichling, David B. (2016). "Navigating a social world with robot partners: a quantitative cartography of the Uncanny Valley". Cognition. 146: 22–32. doi:10.1016/j.cognition.2015.09.008. PMID 26402646.
  14. Adalgeirsson, Sigurdur; Breazeal, Cynthia (2010). MeBot: A Robotic Platform for Socially Embodied Presence (pdf). Hri '10. pp. 15–22. ISBN 9781424448937.
  15. Sakamoto, Daisuke; Kanda, Takayuki; Ono, Tetsuo; Ishiguro, Hiroshi; Hagita, Norihiro (2007). "Android as a telecommunication medium with a human-like presence". Proceeding of the ACM/IEEE international conference on Human-robot interaction - HRI '07. p. 193. doi:10.1145/1228716.1228743. ISBN 978-1-59593-617-2.
  16. Spence, Patric R.; Westerman, David; Edwards, Chad; Edwards, Autumn (July 2014). "Welcoming Our Robot Overlords: Initial Expectations About Interaction With a Robot". Communication Research Reports. 31 (3): 272–280. doi:10.1080/08824096.2014.924337.
  17. Edwards, Chad; Edwards, Autumn; Spence, Patric R.; Westerman, David (21 December 2015). "Initial Interaction Expectations with Robots: Testing the Human-To-Human Interaction Script". Communication Studies. 67 (2): 227–238. doi:10.1080/10510974.2015.1121899.
  18. Anticipatory Robot Control for Efficient Human-Robot Collaboration (pdf). Hri '16. 2016. pp. 83–90. ISBN 9781467383707.
  19. Coordination mechanisms in human-robot collaboration. Proceedings of the ACM/IEEE International Conference on Human-robot Interaction. 2013. CiteSeerX 10.1.1.478.3634.
  20. Sebanz, Natalie; Bekkering, Harold; Knoblich, Günther (February 2006). "Joint action: bodies and minds moving together". Trends in Cognitive Sciences. 10 (2): 70–76. doi:10.1016/j.tics.2005.12.009. PMID 16406326.
  21. Huang, Chien-Ming; Cakmak, Maya; Mutlu, Bilge (2015). Adaptive Coordination Strategies for Human-Robot Handovers (PDF). Robotics: Science and Systems.
  22. "WeBuild: Automatically Distributing Assembly Tasks Among Collocated Workers to Improve Coordination" (PDF). 2017. Cite journal requires |journal= (help)
  23. Hentout, Abdelfetah; Aouache, Mustapha; Maoudj, Abderraouf; Akli, Isma (2019-08-18). "Human–robot interaction in industrial collaborative robotics: a literature review of the decade 2008–2017". Advanced Robotics. 33 (15–16): 764–799. doi:10.1080/01691864.2019.1636714. ISSN 0169-1864.
  24. Aggogeri, Francesco; Mikolajczyk, Tadeusz; O’Kane, James (April 2019). "Robotics for rehabilitation of hand movement in stroke survivors". Advances in Mechanical Engineering. 11 (4): 168781401984192. doi:10.1177/1687814019841921. ISSN 1687-8140.
  25. Oña, Edwin Daniel; Garcia-Haro, Juan Miguel; Jardón, Alberto; Balaguer, Carlos (2019-06-26). "Robotics in Health Care: Perspectives of Robot-Aided Interventions in Clinical Practice for Rehabilitation of Upper Limbs". Applied Sciences. 9 (13): 2586. doi:10.3390/app9132586. ISSN 2076-3417.
  26. Robinson, Hayley; MacDonald, Bruce; Broadbent, Elizabeth (November 2014). "The Role of Healthcare Robots for Older People at Home: A Review". International Journal of Social Robotics. 6 (4): 575–591. doi:10.1007/s12369-014-0242-2. ISSN 1875-4791.
  27. Curtis, Sophie (2017-07-28). "This creepy-looking humanoid robot has a very important purpose". mirror. Retrieved 2019-10-28.
  28. Begum, Momotaz; Serna, Richard W.; Yanco, Holly A. (April 2016). "Are Robots Ready to Deliver Autism Interventions? A Comprehensive Review". International Journal of Social Robotics. 8 (2): 157–181. doi:10.1007/s12369-016-0346-y. ISSN 1875-4791.
  29. Biondi, Francesco; Alvarez, Ignacio; Jeong, Kyeong-Ah (2019-07-03). "Human–Vehicle Cooperation in Automated Driving: A Multidisciplinary Review and Appraisal". International Journal of Human–Computer Interaction. 35 (11): 932–946. doi:10.1080/10447318.2018.1561792. ISSN 1044-7318.
  30. Goodrich, M. A.; Lin, L.; Morse, B. S. (May 2012). "Using camera-equipped mini-UAVS to support collaborative wilderness search and rescue teams". 2012 International Conference on Collaboration Technologies and Systems (CTS): 638. doi:10.1109/CTS.2012.6261008. ISBN 978-1-4673-1382-7.
  31. Morse, Bryan S.; Engh, Cameron H.; Goodrich, Michael A. (2010). "UAV video coverage quality maps and prioritized indexing for wilderness search and rescue". Proceeding of the 5th ACM/IEEE International Conference on Human-robot Interaction - HRI '10. Osaka, Japan: ACM Press: 227. doi:10.1145/1734454.1734548. ISBN 9781424448937.
  32. Bernard, Tiziano; Martusevich, Kirill; Rolins, Armando A.; Spence, Isaac; Troshchenko, Alexander; Chintalapati, Sunil (2018-09-17). "A Novel Mars Rover Concept for Astronaut Operational Support on Surface EVA Missions". 2018 AIAA SPACE and Astronautics Forum and Exposition. Orlando, FL: American Institute of Aeronautics and Astronautics. doi:10.2514/6.2018-5154. ISBN 9781624105753.
  33. Bartneck, Christoph; Michio Okada (2001). "Robotic User Interfaces" (PDF). Proceedings of the Human and Computer Conference. pp. 130–140.
  34. Bartneck, Christoph (February 2011). "The end of the beginning: a reflection on the first five years of the HRI conference". Scientometrics. 86 (2): 487–504. doi:10.1007/s11192-010-0281-x. PMC 3016230. PMID 21297856.
  35. Bartneck, Christoph; Belpaeme, Tony; Eyssel, Friederike; Kanda, Takayuki; Keijsers, Merel; Šabanović, Selma (2019). Human-Robot Interaction - An Introduction. Cambridge: Cambridge University Press. ISBN 9781108735407. Retrieved 27 January 2020.
  36. Kanda, Takayuki (2012). Human-Robot Interaction in Social Robotics. CRC Press. ISBN 9781466506978.
  37. Breazeal, Cynthia; Dautenhahn, Kerstin; Takayuki, Kanda (2016). "Social Robotics". In Siciliano, Bruno; Khatib, Oussama (eds.). Springer Handbook of Robotics. Berlin: Springer. pp. 1935–1972. ISBN 9783319325507.

References
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