Search results for "Multimedia"

Attention Direction in Static and Animated Diagrams

2010

Two key requirements for comprehending a diagram are to parse it into appropriate components and to establish relevant relationships between those components. These requirements can be particularly demanding when the diagram is complex and the viewers are novices in the depicted domain. Lack of domain-specific knowledge for top-down guidance of visual attention prejudices novices' extraction of task-relevant information. Static diagrams designed for novices often include visual cues intended to improve such information extraction. However, because current approaches to cueing tend to be largely intuitive, their effectiveness can be questionable. Further, animated diagrams with their percept…

A Fast Handover Method for Real-Time Multimedia Services

2006

Mobile IPv6 (MIPv6) has been standardized for mobility management in the IPv6 network. When a mobile node changes its point of attachment in the IPv6 network, it experiences a time due MIPv6 procedures when it cannot receive or send any packets. This time called the handover delay might also cause packet loss resulting undesired quality-of-service degradation for various types of applications. The minimization of this delay is especially important for real-time applications. In this chapter we present a fast handover method called the flow-based fast handover for Mobile IPv6 (FFHMIPv6) to speed up the MIPv6 handover processes. FFHMIPv6 employs flow information and IPv6-in-IPv6 tunneling for…

Influence of Silence and Noise Filtering on Speech Quality Monitoring

2021

With the exponential increase of mobile users and internet subscribers, the utilization of voice over internet protocol (VoIP) application is increasing dramatically. People exploit different VoIP applications for effective communication, for example, Google Meet, Microsoft Skype, Zoom video conferencing applications, etc. The single-ended speech quality metrics are employed for measuring and monitoring the quality of speech. However, different types of degradations present in the surroundings distort the quality of speech. In order to meet the desired quality of experience (QoE) level of end-user while using VoIP applications, it is necessary to reduce VoIP degradations and obtain the opti…

E-Learning e multimedialità, conoscenza senza frontiere

2008

Web accessibility for visual disabled: An expert evaluation of the Inclusite® solution

2012

This study analyzes web accessibility problems for people with visual disability and presents the results of testing a prototype of Inclusite® system, an access solution designed to facilitate web navigation for people with visual disability, consisting of a navigation interface through keyboard and speech synthesis. An expert typhlotechnologist conducts a navigation test in three sessions evaluating the prototype positively and suggesting aspects for improvement. The interface provides web access as a service, the access solution is hosted in the website, so that the user can perform navigation using a different computer (not the own) which does not have his usual technical aids, helping t…

Mobile Search - Social Network Search Using Mobile Devices

2008

During the last years progress in Web search engines has been made to the point that relevant information can be reached easily most of the time. However very little empirical research has been carried to study Web search in highly dynamic social network environments composed of mobile devices. The aim of this work was therefore to investigate novel approaches that took advantage of the social network environment inherent to mobile peer-to-peer paradigm. The work focused mainly on the development of a prototype for mobile search concept. The prototype was built on top of Drupal content site management system. This study suggests that the methods presented can be a complement to traditional …

Web access for people with visual disability

2012

This paper addresses the evaluation of a prototype of the Inclusite® solution, designed to enable web accessibility for visual disabled people. The interface provides the help from the Web and avoids users' dependence on software and devices normally used by them. An expert in typhlotechnology makes usability tests of Inclusite® interface, consisting of keyboard navigation combined with voice synthesis (synthesis of voice reads to the user the selections made from the keyboard). The evaluation of the initiative is very positive as it will contribute to reduction of costs by the users, not needing to purchase specific software, as well as reducing their dependence on the use of their own equ…

Semantic to intelligent web era

2013

International audience; The Web has known a very fast evolution: going from the Web 1.0, known as Web of Documents where users are merely consumers of static information, to the more dynamic Web 2.0, known as social or collaborative Web where users produce and consume information simultaneously, and entering the more sophisticated Web 3.0, known as the Semantic Web by giving information a well-defined meaning so that it becomes more easily accessible by human users and automated processes. Fostering service intelligence and atomicity (the ability of autonomous services to interact automatically), remains one of the most upcoming challenges of the Semantic Web. This promotes the dawn of a ne…

Semantic Web Services for Smart Devices in a “Global Understanding Environment”

2003

Various Web resources and services are usually assumed to be used and accessed by human users (current Web) or by software agents on behalf of human users (emerging Semantic Web). However industry emerges also a new group of “users”, which are smart industrial devices, robots or any other objects, which can be adapted to the (Semantic) Web environment. They would need special services for e.g. online condition monitoring, information provisioning, remote diagnostics, maintenance support, etc. The goal of this paper is to specify main requirements to Web services that automatically follow up and predict the performance and maintenance needs of field devices. Semantic Web enabled services for…

Medical Journals, Letters to the Editor

2006

‘Letters to the Editor’ make up one of the seven genres in medical writing that share common linguistic features, such as the heavy use of specialized terminology. Yet it is the most subjective and personal form of written communication, enabling researchers to comment on their peers' published work. It is critical writing and displays open contention, which is most unusual in medical journals. It reveals conflicts that otherwise remain implicit. Unlike research articles, it may include cultural references. Although not officially part of the validating process by the community, it has always been present in medical journals.