scholarly journals Hinting as a politeness strategy in natural interaction

2017 ◽  
Author(s):  
Ekaterina Rudneva
Keyword(s):  
Natural Interaction

scholarly journals Comparative evaluation of WIMP and immersive natural finger interaction: a user study on CAD assembly modeling

2021 ◽  
Author(s):  
Marius Fechter ◽  
Benjamin Schleich ◽  
Sandro Wartzack
Keyword(s):  
User Interfaces ◽  
User Study ◽  
Spatial Location ◽  
Ease Of Use ◽  
Natural Interaction ◽  
Assembly Modeling ◽  
3D Space ◽  
Computer Mouse ◽  
Study Results ◽  
Assembly Procedure

AbstractVirtual and augmented reality allows the utilization of natural user interfaces, such as realistic finger interaction, even for purposes that were previously dominated by the WIMP paradigm. This new form of interaction is particularly suitable for applications involving manipulation tasks in 3D space, such as CAD assembly modeling. The objective of this paper is to evaluate the suitability of natural interaction for CAD assembly modeling in virtual reality. An advantage of the natural interaction compared to the conventional operation by computer mouse would indicate development potential for user interfaces of current CAD applications. Our approach bases on two main elements. Firstly, a novel natural user interface for realistic finger interaction enables the user to interact with virtual objects similar to physical ones. Secondly, an algorithm automatically detects constraints between CAD components based solely on their geometry and spatial location. In order to prove the usability of the natural CAD assembly modeling approach in comparison with the assembly procedure in current WIMP operated CAD software, we present a comparative user study. Results show that the VR method including natural finger interaction significantly outperforms the desktop-based CAD application in terms of efficiency and ease of use.

scholarly journals Human-Robot Handshaking: A Review

2021 ◽  
Author(s):  
Vignesh Prasad ◽  
Ruth Stock-Homburg ◽  
Jan Peters
Keyword(s):  
Facial Expressions ◽  
Social Contexts ◽  
Social Robots ◽  
Human Robot Interaction ◽  
Robot Interaction ◽  
Natural Interaction ◽  
Internal Factors ◽  
Verbal Behaviour ◽  
Key Factor ◽  
Physical Touch

AbstractFor some years now, the use of social, anthropomorphic robots in various situations has been on the rise. These are robots developed to interact with humans and are equipped with corresponding extremities. They already support human users in various industries, such as retail, gastronomy, hotels, education and healthcare. During such Human-Robot Interaction (HRI) scenarios, physical touch plays a central role in the various applications of social robots as interactive non-verbal behaviour is a key factor in making the interaction more natural. Shaking hands is a simple, natural interaction used commonly in many social contexts and is seen as a symbol of greeting, farewell and congratulations. In this paper, we take a look at the existing state of Human-Robot Handshaking research, categorise the works based on their focus areas, draw out the major findings of these areas while analysing their pitfalls. We mainly see that some form of synchronisation exists during the different phases of the interaction. In addition to this, we also find that additional factors like gaze, voice facial expressions etc. can affect the perception of a robotic handshake and that internal factors like personality and mood can affect the way in which handshaking behaviours are executed by humans. Based on the findings and insights, we finally discuss possible ways forward for research on such physically interactive behaviours.

The role of religion in shaping politeness in Moroccan Arabic: The case of the speech act of greeting and its place in intercultural understanding and misunderstanding

2015 ◽  
Vol 11 (1) ◽  
Author(s):  
Abdelaziz Bouchara
Keyword(s):  
Cultural Values ◽  
Speech Act ◽  
Intercultural Understanding ◽  
Natural Interaction ◽  
Self Image ◽  
Moroccan Arabic ◽  
Politeness Strategies ◽  
Role Of Religion ◽  
Cultural Pragmatics

AbstractThis paper investigates, from a cross-cultural pragmatics framework, the motivations and reasons which induce Moroccans in particular, and Arabs in general, to invoke Qur’anic verses and religious lexicons in their daily politeness discourse. By focusing on the speech act of greeting, this study attempts to show that greetings are ordinary day-to-day events, which often encapsulate a lot of different cultural values that may cause misunderstandings. Based on data collected from natural interaction between Arabs and Germans, Arabs seem inclined to show politeness when greeting one another by using religious vocabulary and giving religious praises. In addition, the use of religion as a politeness strategy appears to function as a way of protecting the self-image of both the speaker and the hearer. Furthermore, the findings of this study also reveal that by resorting to the use of this politeness strategy, Moroccans seem to reflect their firm belief and the importance they attach to the Qur’an and, more especially, to the question of fate and destiny in Islam. As a result, it is not the linguistic expression itself but rather the pragmatic function of the utterance that seems to determine the use and interpretation of politeness strategies in (Moroccan) Arabic.

scholarly journals Design of Immersive Virtual Reality System to Improve Communication Skills in Individuals with Autism

2017 ◽  
Vol 12 (05) ◽  
pp. 50 ◽  
Author(s):  
Osama Halabi ◽  
Samir Abou El-Seoud ◽  
Jihad Alja'am ◽  
Hena Alpona ◽  
Moza Al-Hemadi ◽  
...  
Keyword(s):  
Virtual Reality ◽  
Social Performance ◽  
Autism Spectrum ◽  
Immersive Virtual Reality ◽  
Autistic Children ◽  
Natural Interaction ◽  
Head Mounted Display ◽  
Communications Skills ◽  
Improved Performance ◽  
Communication Impairments

Individuals with autism spectrum disorder (ASD) regularly experience situations in which they need to give answers but do not know how to respond; for example, questions related to everyday life activities that are asked by strangers. Research geared at utilizing technology to mend social and communication impairments in children with autism is actively underway. Immersive virtual reality (VR) is a relatively recent technology that has the potential of being an effective therapeutic tool for developing various skills in autistic children. This paper presents an interactive scenario-based VR system developed to improve the communications skills of autistic children. The system utilizes speech recognition to provide natural interaction and role-play and turn-taking to evaluate and verify the effectiveness of the immersive environment on the social performance of autistic children. In experiments conducted, participants showed more improved performance with a computer augmented virtual environment (CAVE) than with a head mounted display (HMD) or a normal desktop. The results indicate that immersive VR could be more satisfactory and motivational than desktop for children with ASD.

A Robotic Ankle-Foot Orthosis for Daily-Life Assistance and Rehabilitation

2018 ◽  
Author(s):  
Md Rejwanul Haque ◽  
Hao Zheng ◽  
Saroj Thapa ◽  
Geza Kogler ◽  
Xiangrong Shen
Keyword(s):  
Daily Life ◽  
Human Movement ◽  
Gear Ratio ◽  
Assistive Device ◽  
Wearable Robot ◽  
Performance Goal ◽  
Natural Interaction ◽  
Ankle Foot Orthosis ◽  
Finite State ◽  
Foot Orthosis

The ankle plays an important role in human movement as it supplies the majority of energy to support an individual’s walking. In this paper, the authors present a robotic ankle-foot orthosis (RAFO), which is essentially a wearable robot that acts in parallel to the user’s biological ankle for motion assistance. Unlike most of the existing robotic ankle-foot ortheses, the RAFO in this paper is a compact and portable assistive device with full energy autonomy, which enables its use in a user’s daily life without the typical limitation associated with tethered operation. The primary performance goal in the design of the RAFO is to provide a torque capacity equivalent to 35% of a 75 kg healthy person’s maximum ankle torque in slow walking, while keeping the weight of the device less than 2 kg. To reach such goal, the orthotic joint is actuated with a compact flat motor coupled with a two-stage transmission that provides a total 200:1 gear ratio. Additionally, a novel two-degree-of-freedom (2-DOF) joint design is incorporated. In addition to the powered dorsiflexion – plantarflexion, the 2-DOF joint also allows passive inversion – eversion of the joint, which greatly improves the comfort in the prolonged wearing of the device. For the control of the powered joint, a finite-state, friction-compensated impedance controller is developed to provide natural interaction with the user and reliable triggering of the powered push-off in walking. A prototype of the RAFO has been fabricated and assembled, and preliminary results demonstrated its effectiveness in assisting the user’s locomotion in treadmill walking experiments.

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