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Current smartphone technology presents many challenges for blind users. This article introduces the use of deformable inputs for blind users, which offers such users the ability to physically manipulate a device for system interaction. The authors describe the iterative design process of a deformable device prototype, Typhlex, with strategically placed grooves to elicit bend gestures. To understand...
We show that information extracted from crowd-based testing can enhance automated mobile testing. We introduce Polariz, which generates replicable test scripts from crowd-based testing, extracting cross-app ‘motif’ events: automatically-inferred reusable higher-level event sequences composed of lower-level observed event actions. Our empirical study used 434 crowd workers from Mechanical Turk to perform...
Mobile phones equipped with a monocular camera and an inertial measurement unit (IMU) are ideal platforms for augmented reality (AR) applications, but the lack of direct metric distance measurement and the existence of aggressive motions pose significant challenges on the localization of the AR device. In this work, we propose a tightly-coupled, optimization-based, monocular visual-inertial state...
In wireless coded cache network, data contents are cached in a number of mobile devices using an erasure correcting code, and a user retrieves content from other mobile devices using device-to-device communication. In this paper, we consider the repair problem when multiple devices that cache data contents fail or leave the network. By exploiting the wireless broadcast nature, we formulate the repair...
We present a novel angle based indoor localization approach which exploits the directivity property of the smart antenna array at both transmitter and receiver sides. In contrast to conventional AOA based localization approaches, our system combines using beam steering transmitting and receiving approach to mitigate the effect of indoor multipath propagation. By setting the receiver beamforming weights,...
This study aims to design a web technology based Emergency System (SmartER) system, which will enable the doctors and nurses to perform the patient related procedures more quickly and smoothly in the emergency departments. SmartER is not just software, it is planned as a system that includes a monitor screen to be mounted on the wall, a barcode bracelet for the patients, mobile devices to be used...
Positioning and location tracking are two major needs of the modern era; in which logistics, industry automation, smart buildings/cities and the Internet of Things concepts are trending topics and are constantly evolving. Introduction of the Global Positioning System (GPS) solved the issue well for outdoor scenarios, however, it is not a reliable solution for indoors, where satellite communication...
Volume data representations are widely used in many different domains including medical imaging. Here, they are primarily accessed using WIMP interfaces on desktop PCs, while the use of handheld mobile devices to browse volume data is widely ignored. In this work, we present Volume Lens, an approach for displaying volume datasets on mobile hardware by implementing a novel interface that turns the...
Most existing libraries use floor plans and call numbers in order to locate books rather than providing truly user's awareness of the extensive collections and services for students in the library context. With a collection of more than 48,568 volumes at the Engineering and Exact Sciences library of the Universidad Autónoma de Yucatán (UADY), the task of looking for a book can be really a time-consuming...
With advances in robotics and artificial intelligence, and increasing prevalence of commercial social robots and chatbots, humans are communicating with artificially intelligent machines for various applications in a wide range of settings. Intimate touch is crucial to relationships forming and emotional bonding, however it remains as a missing element in digital communication between humans, as well...
With the advancements in mobile sensors and health-care technologies, mobile health (mHealth) services are growing in demand. However, the deployment of mHealth's applications in rural and underdeveloped areas remains a major challenge, despite the investments made, largely due to unreliable communication infrastructures. In this paper, we propose delivering mHealth data in a highly disruptive wireless...
We are currently engaged in a redesign of the method we use to distribute Engineering Teaching Kits (ETKs) via the Internet. This work in progress reports the results of the user-centered conceptual design phase of the project. ETKs are self-contained STEM education standards-based units that promote integrative learning about STEM via engineering design challenges. The current distribution method,...
This paper describes the use of Bluetooth hardware for localization and signal processing education on Android smart-phones and tablets. The localization algorithm uses the Received Signal Strength Indcation (RSSI) value of transmitting devices in order to triangulate their position. The concepts that are featured in the use of this technology have classroom relevant content such as multilateration...
A web game-based platform was designed for mobile devices in order to improve the conceptual comprehension of Physics and Math. A gamification approach is used to engage the students and to encourage youngsters to venture into science, technology, engineering and mathematics. Recognition is earned through stars and other awards that can be redeemed as the students play CocoGame. In this way Cocol,...
This work considers the social link prediction problem in the human community. Since mobile phones with the support of wireless technologies have become an integral part of human life, mining the traces of mobile devices can help us to understand the community structure in the social network. Therefore, an encounter-based link prediction method in which we try to analyze the social relationship between...
Within the necessary security requirements, access control measures are essential to provide adequate means to protect data from unauthorized accesses. However, current and traditional solutions are commonly based on predefined access policies and roles and are therefore inflexible by assuming uniform access control decisions through people's different type of devices, environments and situational...
Ancient Bagan is one of the culture heritage region of Myanmar and most tourist attraction areas. The trip planning mobile application of Ancient Bagan region is developed for providing efficient access to location-based information requires on the trip anywhere and anytime. The spatial index structure is an important role for retrieving the two dimensional geographical location effectively and efficiently...
According to the World Health Organization, car accidents are amongst the top ten worldwide causes of death as a result of speeding, driving while under the influence of alcohol or other psychoactive substances, non-use of safety restraints, and distractions. The current appropriation and impact of mobile devices are changing how people perform daily activities, which is leading to distractions that...
The paper investigates the problems of placement of antennas on complex platform to realize the desired impedance and radiation patterns using the Characteristic mode analysis (CMA) as well as the Characteristic Basis Function technique. A comparison of the two techniques is presented when they are applied to two real-world examples, namely a mobile phone and the topside of a ship.
The increase in the use of mobile devices from the first decade of this century has enabled users to perform several activities previously only possible through personal computers. However, the use of these devices is impacted by their known computational limitations, such as data processing, RAM memory, storage, and energy autonomy limitations. Considering this context, to measure the impact of the...
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