Preview Cues: Enhancing Access to Multimedia Content

We describe preview cues, a lightweight mechanism to assist exploration of multimedia content. A preview cue provides a preview of the kind of content/information associated with an area (as opposed to an instance) of a domain. Preview cues associate media files and their meta data with the label of a topic in a domain. A lightweight gesture such as brushing a cursor over a label initiates playback of the preview cue file associated with that label. With these cues, users can preview the type of content associated with an area of a domain in order to decide whether or not that area is of interest for further exploration before having to select it. In this paper we describe the preview cues mechanism. We look at one case study of an implementation of preview cues in the audio domain, and we present the results of a user study of preview cue deployment. We conclude with a discussion of issues for future research

Experiences of People with Visual Impairments in Accessing Online Information and Services: A Systematic Literature Review

The World Wide Web is the largest source of electronic information in the world. Over the years, rapid advances in the internet have made it less accessible thereby making it increasingly difficult for people with visual impairments to access online information and services. This paper systematically reviews previous research to identify challenges that people with visual impairments face, and the role of accessibility technologies and guidelines to support people with visual impairments in their access to online information and services. The findings discuss three categories emerged from the literature: inaccessible content for the visually impaired, improving website accessibility for the visually impaired, and accessibility technologies and their benefits and limitations for people with visual impairments. The findings further discuss the usability issues which are present in accessing online content, the different attempts that have been made to mitigate these problems, and the different guidelines and tools that can be adopted by web designers to make websites more accessible for the visually impaired. It also discusses the versatility and availability of various accessibility technologies. Although these technologies provide basic access to online information, they are greatly limited in their functionality. Therefore, it is up to the web designers to change their perceptions when designing websites. With the proper use of the guidelines, the capabilities of accessibility technologies can be accommodated in making information provided accessible to all users including those with visual impairments. The contributions of this research are that it offers a rigorous narrative review to summarise the state of knowledge on challenges that people with visual impairments face in accessing online information and services, the support and limitations of accessibility technologies in addressing some of these challenges. In addition, this study identifies gaps and areas that deserve more scrutiny in future research including digital exclusion issues among the visually impaired, explanation on the unwillingness of web designers to develop accessible websites, improvements to accessibility technologies to support increasingly visually complex websites, among others. Since the visually impaired are a diverse group with different degrees of impairments, needs and preferences, we encourage researchers to involve them in future studies. Available at: https://aisel.aisnet.org/pajais/vol11/iss2/3

FOSS4G 2013 Full Conference Proceedings (papers)

This Conference Proceedings is a collection of outstanding papers submitted to the Academic Program of the International Conference for Free and Open Source Software for Geospatial (FOSS4G), 17th to 21st September 2013 in Nottingham, U.K

Computerization of workflows, guidelines and care pathways: a review of implementation challenges for process-oriented health information systems

There is a need to integrate the various theoretical frameworks and formalisms for modeling clinical guidelines, workflows, and pathways, in order to move beyond providing support for individual clinical decisions and toward the provision of process-oriented, patient-centered, health information systems (HIS). In this review, we analyze the challenges in developing process-oriented HIS that formally model guidelines, workflows, and care pathways. A qualitative meta-synthesis was performed on studies published in English between 1995 and 2010 that addressed the modeling process and reported the exposition of a new methodology, model, system implementation, or system architecture. Thematic analysis, principal component analysis (PCA) and data visualisation techniques were used to identify and cluster the underlying implementation ‘challenge’ themes. One hundred and eight relevant studies were selected for review. Twenty-five underlying ‘challenge’ themes were identified. These were clustered into 10 distinct groups, from which a conceptual model of the implementation process was developed. We found that the development of systems supporting individual clinical decisions is evolving toward the implementation of adaptable care pathways on the semantic web, incorporating formal, clinical, and organizational ontologies, and the use of workflow management systems. These architectures now need to be implemented and evaluated on a wider scale within clinical settings

A Nine Month Report on Progress Towards a Framework for Evaluating Advanced Search Interfaces considering Information Retrieval and Human Computer Interaction

This is a nine month progress report detailing my research into supporting users in their search for information, where the questions, results or even thei

Holistic System Design for Distributed National eHealth Services

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Alcuni abstract di articoli che trattano argomenti relativi all'eHealth

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Active aging in place supported by caregiver-centered modular low-cost platform

Aging in place happens when people age in the residence of their choice, usually their homes because is their preference for living as long as possible. This research work is focused on the conceptualization and implementation of a platform to support active aging in place with a particular focus on the caregivers and their requirements to accomplish their tasks with comfort and supervision. An engagement dimension is also a plus provided by the platform since it supports modules to make people react to challenges, stimulating them to be naturally more active. The platform is supported by IoT, using low-cost technology to increment the platform modularly. Is a modular platform capable of responding to specific needs of seniors aging in place and their caregivers, obtaining data regarding the person under supervision, as well as providing conditions for constant and more effective monitoring, through modules and tools that support decision making and tasks realization for active living. The constant monitoring allows knowing the routine of daily activities of the senior. The use of machine learning techniques allows the platform to identify, in real-time, situations of potential risk, allowing to trigger triage processes with the older adult, and consequently trigger the necessary actions so that the caregiver can intervene in useful time.O envelhecimento no local acontece quando as pessoas envelhecem na residência da sua escolha, geralmente nas suas próprias casas porque é a sua preferência para viver o máximo de tempo possível. Este trabalho de investigação foca-se na conceptualização e implementação de uma plataforma de apoio ao envelhecimento ativo no local, com particular enfoque nos cuidadores e nas suas necessidades para cumprir as suas tarefas com conforto e supervisão. Uma dimensão de engajamento também é um diferencial da plataforma, pois esta integra módulos de desafios para fazer as pessoas reagirem aos mesmos, estimulando-as a serem naturalmente mais ativas. A plataforma é suportada por IoT, utilizando tecnologia de baixo custo para incrementar a plataforma de forma modular. É uma plataforma modular capaz de responder às necessidades específicas do envelhecimento dos idosos no local e dos seus cuidadores, obtendo dados relativos à pessoa sob supervisão, bem como fornecendo condições para um acompanhamento constante e mais eficaz, através de módulos e ferramentas que apoiam a tomada de decisões e realização de tarefas para a vida ativa. A monitorização constante permite conhecer a rotina das atividades diárias do idoso, permitindo que, com a utilização de técnicas de machine learning, a plataforma seja capaz de detetar em tempo real situações de risco potencial, permitindo desencadear um processo de triagem junto do idoso, e consequentemente despoletar as ações necessárias para que o prestador de cuidados possa intervir em tempo útil