scholarly journals One Row Keyboard: The Concept of Designing a Common Layout for Physical and Virtual Keyboards

Electronics ◽  
2021 ◽  
Vol 10 (6) ◽  
pp. 663
Author(s):  
Radosław Puka ◽  
Piotr Łebkowski ◽  
Jerzy Duda

The development of technology brings the computerization of everyday life. The most common device used to communicate with a computer is the keyboard. Many papers have been devoted to the study of computer keyboards and virtual keyboards. The authors of this study propose a new concept of a single line keyboard named One Row Keyboard (ORK) which can be applied for both computer and virtual keyboards. Applying the proposed concept enables the number of keys on the keyboards to be reduced significantly. This allows for the development of keyboards even on really small mobile devices. The article also presents a new method of assigning characters to keys for the ORK and shows the use of this method to create exemplary ORK layouts. One Row Keyboard is also the first concept that makes it possible to create a fully alternating keyboard. Noteworthy is that the criterion of maximizing typing alternation is the most popular criterion for keyboard optimization used in the studies devoted to computer keyboards as it leads to an increase in typing speed and decrease in the number of errors.

Vision ◽  
2018 ◽  
Vol 2 (3) ◽  
pp. 35 ◽  
Author(s):  
Braiden Brousseau ◽  
Jonathan Rose ◽  
Moshe Eizenman

The most accurate remote Point of Gaze (PoG) estimation methods that allow free head movements use infrared light sources and cameras together with gaze estimation models. Current gaze estimation models were developed for desktop eye-tracking systems and assume that the relative roll between the system and the subjects’ eyes (the ’R-Roll’) is roughly constant during use. This assumption is not true for hand-held mobile-device-based eye-tracking systems. We present an analysis that shows the accuracy of estimating the PoG on screens of hand-held mobile devices depends on the magnitude of the R-Roll angle and the angular offset between the visual and optical axes of the individual viewer. We also describe a new method to determine the PoG which compensates for the effects of R-Roll on the accuracy of the POG. Experimental results on a prototype infrared smartphone show that for an R-Roll angle of 90 ° , the new method achieves accuracy of approximately 1 ° , while a gaze estimation method that assumes that the R-Roll angle remains constant achieves an accuracy of 3.5 ° . The manner in which the experimental PoG estimation errors increase with the increase in the R-Roll angle was consistent with the analysis. The method presented in this paper can improve significantly the performance of eye-tracking systems on hand-held mobile-devices.


2017 ◽  
Vol 7 (3) ◽  
pp. 149-156
Author(s):  
Mucahit Baydar ◽  
Songul Albayrak

AbstractDevelopments in mobile devices and wireless networks have led to the increasing popularity of location-based social networks. These networks allow users to explore new places, share their location, videos and photos and make friends. They give information about the mobility of users, which can be used to improve the networks. This paper studies the problem of predicting the next check-in of users of location-based social networks. For an accurate prediction, we first analyse the datasets that are obtained from the social networks, Foursquare and Gowalla. Then we obtain some features like place popularity, place popular time range, place distance to user’s home, user’s past visits, category preferences and friendships ,which are used for prediction and deeper understanding of the user behaviours. We use each feature individually, and then in combination, using the new method. Finally, we compare the acquired results and observe the improvement with the new method.Keywords: Location prediction, location-based social network, check-in data.


2014 ◽  
Vol 10 (3) ◽  
pp. 243-258 ◽  
Author(s):  
Keum-Sung Hwang ◽  
Sung-Bae Cho

Mobile devices can now handle a great deal of information thanks to the convergence of diverse functionalities. Mobile environments have already shown great potential in terms of providing customized service to users because they can record meaningful and private information continually for long periods of time. The research for understanding, searching and summarizing the everyday-life of human has received increasing attention in recent years due to the digital convergence. In this paper, we propose a mobile life browser, which visualizes and searches human's mobile life based on the contents and context of lifelog data. The mobile life browser is for searching the personal information effectively collected on his/her mobile device and for supporting the concept-based searching method by using concept networks and Bayesian networks. In the experiments, we collected the real mobile log data from three users for a month and visualized the mobile lives of the users with the mobile life browser developed. Some tests on searching tasks confirmed that the result using the proposed concept-based searching method is promising.


Author(s):  
Yung Kyun Choi ◽  
Sungmi Lee

As mobile devices increasingly become a ubiquitous and essential part of everyday life, marketers must face a host of new challenges. This new marketing environment requires that marketers understand how consumers use their mobile phones and, more particularly, how they perceive and derive value from doing so. In this article, the authors suggest that mobile services offer either context-related or content-related values. They also explore managerial implications, by revealing factors that influence consumers to utilize mobile phone services.


Elkawnie ◽  
2019 ◽  
Vol 5 (1) ◽  
pp. 1 ◽  
Author(s):  
Anum Hameed ◽  
Hafiza Anisa Ahmed ◽  
Narmeen Zakaria Bawany

Mobile devices like Smartphones, tablets and PDAs have become an indispensable part of every person’s day to day activities. The growth and propagation of the smartphones has created new opportunities for religious app developers to develop apps that will provide utilities and an easy accessibility to religious information. The purpose of this research is to conduct a survey and to classify Islamic apps that are available on Google Play Store. The user surveys were conducted to evaluate and investigate the usage pattern of the Islamic apps in everyday life of the Muslims. The results identify the need of authentication of the app content that gives rise to many critical issues and myths. Also, it stresses the need for a “Religion” category in Google Play Store. The benefit of this research is twofold, as it focuses on identifying which app features Muslim users are more interested in using and secondly, the Islamic apps/features that need to be developed.


2019 ◽  
Vol 5 (2) ◽  
pp. 85-102
Author(s):  
Aleksandra Gralczyk

Abstract In the presented article, the author explains the need for reflection on the use of a smartphone or tablet by the youngest media users. It presents current research on the use and impact of mobile devices on children, as well as the destructive dimension of the consequences caused by their excessive use as well as the need and scope of education of media competence of preschoolers. The author also presents the results of her own research regarding parents’ opinions on the role and impact of a smartphone / tablet in children’s everyday life. It also presents the teachers’ view on the role of educators in the process of acquiring media competence by children.


Author(s):  
Norbert Pachler ◽  
John Cook ◽  
Ben Bachmair

This article proposes appropriation as the key for the recognition of mobile devices—as well as the artefacts accessed through, and produced with them—as cultural resources across different cultural practices of use, in everyday life and formal education. The article analyses the interrelationship of users of mobile devices with the structures, agency and practices of, and in relation to what the authors call the “mobile complex”. Two examples are presented and some curricular options for the assimilation of mobile devices into settings of formal learning are discussed. Also, a typology of appropriation is presented that serves as an explanatory, analytical frame and starting point for a discussion about attendant issues.


2008 ◽  
pp. 590-598
Author(s):  
Kevin Curran

Mobile communications is a continually growing sector in industry and a wide variety of visual services such as video-on-demand have been created which are limited by low-bandwidth network infrastructures. The distinction between mobile phones and personal device assistants (PDA’s) has already become blurred with pervasive computing being the term coined to describe the tendency to integrate computing and communication into everyday life. New technologies for connecting devices like wireless communication and high bandwidth networks make the network connections even more heterogeneous. Additionally, the network topology is no longer static, due to the increasing mobility of users. Ubiquitous computing is a term often associated with this type of networking.


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