1,721,006 research outputs found
On the perception of urgency in audition: sound design of an early warning alarm
No full textEarthquake early warning (EEW) systems play a critical role in providing advance notice to potentially affected regions, enabling individuals and communities to take immediate safety actions. The efficacy of EEW alarms greatly depends on the timely perception of urgency by the recipients. This paper presents a possible early warning infrastructure which also takes into account the possibility of adapting the alarm to the sensed soundscape in order to define a trade-off between an alarm's urgency and its tolerability in residential and public spaces, aiming to strike a balance between providing timely warnings and minimizing unnecessary panic. The impact of sound alarms on the perception of urgency when the signal is immersed in different soundscapes is thus evaluated and discussed. Preliminary results demonstrate the need of designing an adaptive alarm as a function of the soundscape where it is immersed
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Edge-Enabled Spatial Audio Service: Implementation and Performance Analysis on a MEC 5G Infrastructure
No full textSpatial audio technologies are becoming a fundamental requirement for guaranteeing immersive auditory experiences in various applications such as Augmented and Virtual Reality up to the Metaverse. With the rise of mobile and edge computing, there is a growing interest in exploring spatial audio algorithms performance on edge infrastructures. This paper presents an evaluation of two different spatial audio algorithms and the potential for offloading the real time spatial audio processing on a Mobile Edge Computing (MEC) infrastructure. The presented results were obtained through evaluations performed on a real operator network, and they demonstrate the feasibility of offloading the computation of spatial audio algorithms at the network edge. No difference in terms of performance between the two algorithms was observed under the assumed scenario
A practical approach for the porting of the Ravenscar profile from ADA to C: method, rules adaptation and supporting tools
No full textA Methodology for Design of Scalable Architectures in Software Radio Networks: a Unified Device and Network Perspective
No full text"This paper proposes the Tissue methodology as a novel methodology for analysis, design and synthesis of networked embedded systems and subsequent development of distributed architectural frameworks. The proposed method aims at reducing the development time through the use of reconfigurable HW\/SW components and the application of automatic code generation techniques. We devise the usefulness of the proposed methodology in the context of mobile ad-hoc networks (MANET) which exploit Software Radio (SR) technology for reconfigurability issues. Drawbacks of current design and simulation tools and advantages coming from the application of the TM are discussed in the paper.
Variations on the Author
Full text link“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
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