A comparative study of technology-mediated learning strategies for teaching people with intellectual disability

In this paper, we report on our experiences investigating the role of digital technology in face-to-face instruction of students with intellectual disability. In this process, we used a multi-method approach and our findings integrate results from focus groups, interviews, observations, iterative prototyping, and user evaluation. Ultimately, we hope that our work can motivate future research efforts and bring to light opportunities to be considered in the development of mobile-based education solutions.Ministério da Ciência e Tecnologia do sob o contrato de nº. FINEP 03.11.0371.00

Investigating the collaborative process of subtitles creation and sharing for videos on the Web

In this paper we concentrate on the study of the collaborative practices of enthusiasts that create and share subtitles for third party videos. Based on preliminary results from interviews with some volunteers, we formalize the subtitles creation and sharing process using a business process management model and compare it with other collaborative and crowdsourcing models. We expect that our initial observations can bring a new understanding of the process and, thus, help in the design of next generation video enriching tools

Why do people subtitle movies? A survey research of the subtitler motivations and practices

In this paper we investigate the reasons why enthusiasts dedicate time and effort to create subtitles for third-party videos shared on-line. Based on results obtained from a survey research with a community of Brazilian subtitlers, we highlight basic features of these enthusiasts as well as their motivations and main objectives. Our observations suggest that this is a volunteering and collaborative activity after all.CNPq (#312148/2014-3); FAPES (#67927378/2015

On human-in-the-loop CPS in healthcare: a cloud-enabled mobility assistance service

Despite recent advancements on cloud-enabled and human-in-the-loop cyber-physical systems, there is still a lack of understanding of how infrastructure-related quality of service (QoS) issues affect user-perceived quality of experience (QoE). This work presents a pilot experiment over a cloud-enabled mobility assistive device providing a guidance service and investigates the relationship between QoS and QoE in such a system. In our pilot experiment, we employed the CloudWalker, a system linking smart walkers and cloud platforms, to physically interact with users. Different QoS conditions were emulated to represent an architecture in which control algorithms are performed remotely. Results point out that users report satisfactory interaction with the system even under unfavorable QoS conditions. We also found statistically significant data linking QoE degradation to poor QoS conditions. We finalize discussing the interplay between QoS requirements, the human-in-the-loop effect, and the perceived QoE in healthcare applications