scholarly journals An Orientation Method with Prediction and Anticipation Features

2017 ◽  
Vol 20 (59) ◽  
pp. 82 ◽  
Author(s):  
João Ramos ◽  
Tiago Oliveira ◽  
Ken Satoh ◽  
José Neves ◽  
Paulo Novais

Nowadays, progress is constant and inherent to a living society. This may occur in different arenas, namely in mathematical evaluation and healthcare. Assistive technologies are a topic under this evolution, being extremely important in helping users with diminished capabilities (physical, sensory, intellectual). These technologies assist people in tasks that were difficult or impossible to execute. A common diminished task is orientation, which is crucial for the user autonomy. The adaptation to such technologies should require the minimum effort possible in order to enable the person to use devices that convey assistive functionalities. There are several solutions that help a human being to travel between two different locations, however their authors are essentially concerned with the guidance method, giving special attention to the user interface. The CogHelper system aims to overcome these systems by applying a framework of Speculative Computation, which adds a prediction feature for the next user movement giving an anticipation ability to the system. Thus, an alert is triggered before the user turn towards an incorrect path. The travelling path is also adjusted to the user preferences through a trajectory mining module.

Robotica ◽  
2007 ◽  
Vol 25 (5) ◽  
pp. 521-527 ◽  
Author(s):  
Harsha Medicherla ◽  
Ali Sekmen

SUMMARYAn understanding of how humans and robots can successfully interact to accomplish specific tasks is crucial in creating more sophisticated robots that may eventually become an integral part of human societies. A social robot needs to be able to learn the preferences and capabilities of the people with whom it interacts so that it can adapt its behaviors for more efficient and friendly interaction. Advances in human– computer interaction technologies have been widely used in improving human–robot interaction (HRI). It is now possible to interact with robots via natural communication means such as speech. In this paper, an innovative approach for HRI via voice-controllable intelligent user interfaces is described. The design and implementation of such interfaces are described. The traditional approaches for human–robot user interface design are explained and the advantages of the proposed approach are presented. The designed intelligent user interface, which learns user preferences and capabilities in time, can be controlled with voice. The system was successfully implemented and tested on a Pioneer 3-AT mobile robot. 20 participants, who were assessed on spatial reasoning ability, directed the robot in spatial navigation tasks to evaluate the effectiveness of the voice control in HRI. Time to complete the task, number of steps, and errors were collected. Results indicated that spatial reasoning ability and voice-control were reliable predictors of efficiency of robot teleoperation. 75% of the subjects with high spatial reasoning ability preferred using voice-control over manual control. The effect of spatial reasoning ability in teleoperation with voice-control was lower compared to that of manual control.


Author(s):  
Ryan Anthony Brown ◽  
Suresh Sankaranarayanan

The conventional shopping process involves a human being visiting a designated store and perusing first the items available. A purchase decision is then made based on the information so gathered. However, a number of unique challenges a human shopper would face, if he/she prefers to execute this process using a mobile device, such as a phone. Taking this aspect into consideration, the authors propose the use of an Intelligent Agent for performing the Mobile Shopping on behalf of customers. In this situation, the agents gather information about the products through the use of ‘Store Coordinator Agents’ and then use them for comparing with the user preferences. The proposed agent based system is composed of two agents, viz., a User Agent and Store Coordinator Agent. The implementation of the scheme so proposed has been done using JADE-LEAP development kit and the performance results are discussed in the paper.


Author(s):  
Rudolph Brynn

This study reviews the extent to which Universal Design of digitalized work tools is not only a useful, but a necessary principle to support inclusion in an ageing workforce. But Universal Design must be understood and implemented in a broader sense than “classic” adaptation. It includes areas like services, digitalization training and user interface between mainstream and assistive technologies. It makes requirements to an enterprise’s management system and training policy, besides mainstream human resources policies. The paper goes through these requirements and concludes with the need to improve our understanding of the principle of Universal Design for it to be an efficient tool for inclusive workplaces: not only the digital work tools have to be accessible, but it must be combined with management policy, training and support.


2020 ◽  
Vol 23 (1) ◽  
pp. 1-14
Author(s):  
Jason J.G. White ◽  

This paper serves two purposes. First, it offers an overview of the role of the Mathematical Markup Language (MathML) in representing mathematical notation on the Web, and its significance for accessibility. To orient the discussion, hypotheses are advanced regarding users’ needs in connection with the accessibility of mathematical notation. Second, current developments in the evolution of MathML are reviewed, noting their consequences for accessibility, and commenting on prospects for future improvement in the concrete experiences of users of assistive technologies. Recommendations are advanced for further research and development activities, emphasizing the cognitive aspects of user interface design.


Author(s):  
Linus W. Dietz ◽  
Sameera Thimbiri Palage ◽  
Wolfgang Wörndl

AbstractConversational recommender systems have been introduced to provide users the opportunity to give feedback on items in a turn-based dialog until a final recommendation is accepted. Tourism is a complex domain for recommender systems because of high cost of recommending a wrong item and often relatively few ratings to learn user preferences. In a scenario such as recommending a city to visit, conversational content-based recommendation may be advantageous, since users often struggle to specify their preferences without concrete examples. However, critiquing item features comes with challenges. Users might request item characteristics during recommendation that do not exist in reality, for example demanding very high item quality for a very low price. To tackle this problem, we present a novel conversational user interface which focuses on revealing the trade-offs of choosing one item over another. The recommendations are driven by a utility function that assesses the user’s preference toward item features while learning the importance of the features to the user. This enables the system to guide the recommendation through the search space faster and accurately over prolonged interaction. We evaluated the system in an online study with 600 participants and find that our proposed paradigm leads to improved perceived accuracy and fewer conversational cycles compared to unit critiquing.


Author(s):  
Sladjana Tesanovic ◽  
Danco Davcev ◽  
Vladimir Trajkovik

Multimodal mobile virtual blackboard system is made for consultation among students and professors. It is made to improve availability and communication using mobile handheld devices. Our system enables different forms of communication: chat, VoIP, draw, file exchange. Providing greater usability on small screens of mobile devices can be done by adaptation of the features in an application according to the specific user preferences and to the current utilization of the application. In this chapter, we describe our mobile virtual table consultation system with special attention to the multimodal solution of the user interface by using XML agents and fuzzy logic. The general opinion among the participants of the consultations lead on this mobile system is positive. Participants mark this system as user friendly, which points out that our efforts in development of adaptable user interface can serve as good practice in designing interfaces for mobile devices.


2018 ◽  
Vol 2018 ◽  
pp. 1-6 ◽  
Author(s):  
Julius Gelšvartas ◽  
Rimvydas Simutis ◽  
Rytis Maskeliūnas

Difficulty in communicating is one of the key challenges for people suffering from severe motor and speech disabilities. Often such person can communicate and interact with the environment only using assistive technologies. This paper presents a multifunctional user interface designed to improve communication efficiency and person independence. The main component of this interface is a projection mapping technique used to highlight objects in the environment. Projection mapping makes it possible to create a natural augmented reality information presentation method. The user interface combines a depth sensor and a projector to create camera-projector system. We provide a detailed description of camera-projector system calibration procedure. The described system performs tabletop object detection and automatic projection mapping. Multiple user input modalities have been integrated into the multifunctional user interface. Such system can be adapted to the needs of people with various disabilities.


2017 ◽  
Vol 56 (05) ◽  
pp. 344-349 ◽  
Author(s):  
Sabine Koch ◽  
Kim M. Unertl ◽  
Christoph U. Lehmann ◽  
Kevin R. Dufendach

Summary Background: Early involvement of stakeholders in the design of medical software is particularly important due to the need to incorporate complex knowledge and actions associated with clinical work. Standard user-centered design methods include focus groups and participatory design sessions with individual stakeholders, which generally limit user involvement to a small number of individuals due to the significant time investments from designers and end users. Objectives: The goal of this project was to reduce the effort for end users to participate in co-design of a software user interface by developing an interactive web-based crowd- sourcing platform. Methods: In a randomized trial, we compared a new web-based crowdsourcing platform to standard participatory design sessions. We developed an interactive, modular platform that allows responsive remote customization and design feedback on a visual user interface based on user preferences. The responsive canvas is a dynamic HTML template that responds in real time to user preference selections. Upon completion, the design team can view the user’s interface creations through an administrator portal and download the structured selections through a REDCap interface. Results: We have created a software platform that allows users to customize a user interface and see the results of that customization in real time, receiving immediate feedback on the impact of their design choices. Neonatal clinicians used the new platform to successfully design and customize a neonatal handoff tool. They received no specific instruction and yet were able to use the software easily and reported high usability. Conclusions: VandAID, a new web-based crowdsourcing platform, can involve multiple users in user-centered design simultaneously and provides means of obtaining design feedback remotely. The software can provide design feedback at any stage in the design process, but it will be of greatest utility for specifying user requirements and evaluating iterative designs with multiple options.


2021 ◽  
Vol 25 (2) ◽  
pp. 23-30
Author(s):  
Paulina Pietruś ◽  
Magdalena Muszyńska

Collaborative industrial robots meet the modern approach to robotization. They enable cooperation with a human being in the robot’s work area. As part of the article, it was decided to design and build a robotic station enabling the implementation of human–machine cooperation. CAD models of the station were created using the Autodesk Inventor software. The station design was made in the RobotStudio environment with the use of the IRB 14000 YuMi robot. The software is based on smart components and Rapid language code. A graphical user interface was created, interactive with a human in virtual reality. The software was verified with the participation of the operator in virtual reality.


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