Emotional Prediction and Content Profile Estimation in Evaluating Audiovisual Mediated Communication

2014 ◽  
Vol 2 (4) ◽  
pp. 62-80 ◽  
Author(s):  
Rigas Kotsakis ◽  
Charalampos Dimoulas ◽  
George Kalliris ◽  
Andreas Veglis
Keyword(s):  
Emotional Response ◽  
Quality Of Experience ◽  
Current Work ◽  
Mediated Communication ◽  
High Quality ◽  
Careful Treatment ◽  
The Creation ◽  
Intelligent Models ◽  
Profile Estimation

The present paper focuses on the extraction and evaluation of salient audiovisual features for the prediction of the encoding requirements in audiovisual content. Recent research showed that encoding decisions can be really crucial during audiovisual mediated communication, where poor encoding may lead to unaccepted Quality of Experience (QoE) or even to the creation of negative emotional response. In contrast, exaggerated high quality encoding may create increased bandwidth demands that are associated with annoying delays and irregular playback flow, resulting again in QoE degradation with similar emotional repulsion. Thus, there has to be a careful treatment with proper encoding balance during the production and deployment of mediated communication audiovisual resources. Such machine-assisted creativity is investigated in the current work, with the utilization of applicable audiovisual features, QoE metrics and emotional measures, aiming at implementing intelligent models for optimal audiovisual production and encoding configuration in demanding mediated communication applications and services.

UBAR

2021 ◽  
Vol 20 (3) ◽  
pp. 1-25
Author(s):  
Elham Shamsa ◽  
Alma Pröbstl ◽  
Nima TaheriNejad ◽  
Anil Kanduri ◽  
Samarjit Chakraborty ◽  
...  
Keyword(s):  
Resource Management ◽  
Quality Of Experience ◽  
State Of The Art ◽  
State Of Charge ◽  
User Preference ◽  
Management Approach ◽  
High Quality ◽  
Trade Off ◽  
Run Time

Smartphone users require high Battery Cycle Life (BCL) and high Quality of Experience (QoE) during their usage. These two objectives can be conflicting based on the user preference at run-time. Finding the best trade-off between QoE and BCL requires an intelligent resource management approach that considers and learns user preference at run-time. Current approaches focus on one of these two objectives and neglect the other, limiting their efficiency in meeting users’ needs. In this article, we present UBAR, User- and Battery-aware Resource management, which considers dynamic workload, user preference, and user plug-in/out pattern at run-time to provide a suitable trade-off between BCL and QoE. UBAR personalizes this trade-off by learning the user’s habits and using that to satisfy QoE, while considering battery temperature and State of Charge (SOC) pattern to maximize BCL. The evaluation results show that UBAR achieves 10% to 40% improvement compared to the existing state-of-the-art approaches.

scholarly journals An Adaptive Bitrate Switching Algorithm for Speech Applications in Context of WebRTC

2021 ◽  
Vol 17 (4) ◽  
pp. 1-21
Author(s):  
Mohannad Alahmadi ◽  
Peter Pocta ◽  
Hugh Melvin
Keyword(s):  
Real Time ◽  
Data Exchange ◽  
Quality Of Experience ◽  
End User ◽  
High Quality ◽  
Content Type ◽  
Switching Algorithm ◽  
Wide Range ◽  
The Impact

Web Real-Time Communication (WebRTC) combines a set of standards and technologies to enable high-quality audio, video, and auxiliary data exchange in web browsers and mobile applications. It enables peer-to-peer multimedia sessions over IP networks without the need for additional plugins. The Opus codec, which is deployed as the default audio codec for speech and music streaming in WebRTC, supports a wide range of bitrates. This range of bitrates covers narrowband, wideband, and super-wideband up to fullband bandwidths. Users of IP-based telephony always demand high-quality audio. In addition to users’ expectation, their emotional state, content type, and many other psychological factors; network quality of service; and distortions introduced at the end terminals could determine their quality of experience. To measure the quality experienced by the end user for voice transmission service, the E-model standardized in the ITU-T Rec. G.107 (a narrowband version), ITU-T Rec. G.107.1 (a wideband version), and the most recent ITU-T Rec. G.107.2 extension for the super-wideband E-model can be used. In this work, we present a quality of experience model built on the E-model to measure the impact of coding and packet loss to assess the quality perceived by the end user in WebRTC speech applications. Based on the computed Mean Opinion Score, a real-time adaptive codec parameter switching mechanism is used to switch to the most optimum codec bitrate under the present network conditions. We present the evaluation results to show the effectiveness of the proposed approach when compared with the default codec configuration in WebRTC.

Emotional Aspects and Quality of Experience for Multifactor Evaluation of Audiovisual Content

2014 ◽  
Vol 2 (4) ◽  
pp. 40-61 ◽  
Author(s):  
George Kalliris ◽  
Maria Matsiola ◽  
Charalampos Dimoulas ◽  
Andreas Veglis
Keyword(s):  
Quality Of Experience ◽  
Communication Process ◽  
Emotional Impact ◽  
Mediated Learning ◽  
Audiovisual Communication ◽  
Mediated Communication ◽  
Content Quality ◽  
Communication Efficiency ◽  
Emotional Aspects

The present paper investigates multifactor audiovisual-content quality evaluation strategies, in mediated communication. The primary aims of the work are to identify, describe and model the mechanisms that the attributes of source content and its encoding properties influence the communication process and the involved emotional aspects in terms of Quality of Experience (QoE), information perception and understanding. Mediated learning constitutes a demanding thus suitable investigation case-study, where communication efficiency can be monitored with the use of applicable Quality of Learning (QoL) parameters, such as the learning outcome and its relation to the prior knowledge status. Real-world e-learning scenarios are utilized for sentiment analysis tests combined with QoE/QoL evaluation, using both subjective scores and perceptually-adapted metrics. This experimental research attempts to monitor communication efficiency and its relation to the quality and emotional impact of the mediated content, offering new insights in mediated learning and broader audiovisual communication services.

scholarly journals THE ROLE OF ADULT VOCATIONAL EDUCATION IN BUSINESS ENVIRONMENT IN LATVIA

2020 ◽  
pp. 93-101
Author(s):  
Andra Zenčaka
Keyword(s):  
Higher Education ◽  
Vocational Education ◽  
Labour Market ◽  
Education System ◽  
Developed Countries ◽  
Business Environment ◽  
High Quality ◽  
Vocational Higher Education ◽  
The Creation

The decisive factor for the country's economic development is competitive workforce resources, for the preparation of which vocational education, its quality, compliance with the trends of economic sectors and the demand of the labour market are essential. One of the global socio-economic problems of the 21st century in developed countries is an aging population, due to the influence of which the importance of adult vocational education becomes significant, as changes in the demographic structure mean that labour market needs are increasingly being met by “silver” human resources. Currently, the demand in the labour market for employees with higher education dominates, pointing to the qualitative development of the labour market and the importance of professional higher education in the aspect of population aging. The authors conclude that the existing vocational education system needs to be improved, fully integrating adult education into it, which would serve as one of the basic elements of the support system for the creation of a high-quality state business environment and stimulate the achievement of the national economic goals. The aim of the article is to analyse the vocational education system and types of its acquisition in Latvia as one of the factors supporting the creation of a high-quality business environment that ensures the quality of the available workforce. As a result of the research, the authors have demonstrated the relevance between the implementation of vocational higher education and the quality of business environment. Recommendations for the implementation of high-quality vocational higher education are provided in order to ensure the compliance of the existing workforce with the requirements of the national economy and labour market and to create a high-quality business environment.

scholarly journals Fortælling og kritik i teologien

1982 ◽  
Author(s):  
Peter Kemp
Keyword(s):  
Quality Of Experience ◽  
Point Of View ◽  
Philosophical Analysis ◽  
Narrative Theology ◽  
Existential Philosophy ◽  
Story Telling ◽  
Ethical Point ◽  
The Creation

In his official speech at the defence of Svend Bjerg’s theological dissertation “Den Kristne Grundfortælling” (The Fundamental Christian Story), Peter Kemp agrees to the idea of a narrative theology, but he argues that this theology should not – as Bjerg does – try to escape modern criticism of ideologies, illusions and perversities in story telling, because theological reply to criticism of religion or Christianity has no effect on the modern man if the critique is not taken seriously by the theologian and the stories are not evaluated from an ethical point of view. Kemp also considers that narrative theology is not necessarily opposed to existential philosophy, since philosophical analysis can demonstrate narrative quality of experience as a condition for the creation of stories and dramas. Finally, Kemp discusses Bjerg’s opposition to Paul Ricoeur’s and Kemp’s own concepts of symbol and metaphor. He argues that metaphor without symbol is a language without reference to transcendence.

The Paradox of Service Industrialization and the Creation of Meaning

2012 ◽  
Vol 3 (2) ◽  
pp. 50-62 ◽  
Author(s):  
Jesús Alcoba González
Keyword(s):  
Quality Of Experience ◽  
Human Mind ◽  
Service Systems ◽  
Service Science ◽  
Experience Economy ◽  
Shared Information ◽  
Science Management ◽  
The Creation ◽  
The One

The emergent interdisciplinary area Service Science Management & Engineering (SSME) considers the study of people, technology, and shared information as prime components in service systems. Frequently, the area regarding people is the one that draws less attention. The author analyzes how the knowledge and application of discoveries on how the human mind perceives and stores concepts and events has important implications regarding service design in the experience economy. Specifically, they analyzed the creation of meaning and the quality of experience assessment. The paradox of service industrialization arises when defining a continuum between maximum industrialization of the service on one end and complete personalization on the other. Under certain circumstances, industrialization, which on the one hand creates value, can also destroy it. The contribution of this work lies in pointing out research lines for Service Science (SSME).

scholarly journals Study of the influence of paper parameters on quality rizographic printing

2020 ◽  
pp. 11-16
Author(s):  
V. S. Yudenkov ◽  
P. Y. Sulim
Keyword(s):  
Physical And Mechanical Properties ◽  
Digital Printing ◽  
Print Quality ◽  
Offset Printing ◽  
High Quality ◽  
Laser Printing ◽  
Printing Quality ◽  
Surface Microgeometry ◽  
The Creation

Creation of new digital technologies let automate the reproduction of text and graphic information, led to the creation and development of the digital printing. Digital printing is a technology for producing prints in the printer based on the original layout, created as corresponding codes with a computer. One of the technologies of digital printing is a computer-to-press and one of the devices in this direction is risograph. The risograph printing quality is worse than offset printing. The text is printing with medium sharpness and images remind photos in old newspapers and require special preparation. But risograph is the most profitable solution for small and medium circulations from 50 up to 1000 sheets. Wide usage of risograph printing in typographies demands increase performance of the equipment with the high print quality of digital images. To improve the quality of risographic printing, the creation of methods is required to form the initial indicators of the original layout (clarity, correct transmission of halftones, contrast). At the same time, the result of obtaining high-quality images obtained by printing on a risograph is affected by surface microgeometry and the physical and mechanical properties of paper. So, the optical density of the ink layer on the print is largely determined by the structure of the sections of paper, in particular, absorbency and porosity. To obtain high-quality images on prints, it is necessary not only to customize the original layout, but also to select paper with such characteristics that would allow you to get the best result when printing on a risograph. Since the risograph occupies an intermediate place in quality between copying equipment and laser printing, a laser print is taken as the standard for print quality. And one of the tasks of the quality of risographic prints is to increase it to the quality of laser printing.

scholarly journals DRY MIXTURES AND MIXING EQUIPMENT FOR THEIR PRODUCTION

2021 ◽  
Vol 5 (12) ◽  
pp. 145-150
Author(s):  
Y. Fadin ◽  
O. Shemetova
Keyword(s):  
Building Materials ◽  
Raw Materials ◽  
Mixing Process ◽  
Chemical Additives ◽  
High Quality ◽  
Main Indicator ◽  
History Of ◽  
The Creation ◽  
The Stability

Today’s economic situation creates conditions for revising the existing base of materials and raw materials in construction, as well as for transforming and using it in the future. One of the ways to achieve this goal is the creation of new types of building materials, more effective and low in the price category compared to the classic ones. Dry building mixtures belongs to such materials. The high quality of dry building mixes is guaranteed by the stability of their composition and the properties of the ingredients used. Saving time when using high-quality dry building mixes will allow to get an irreproachable end result. A necessary component in the manufacture of dry building mixtures is the mixing process, which includes the preparation of raw materials, dosing and the distribution of chemical additives. The main indicator of the quality of the finished product in the production of dry mixes is its uniformity. Therefore, special attention is paid to the mixing section in the production line. The variety of bulk materials and their properties contributes to the creation of various types of mixers for high-quality mixing of components. The article discusses the history of the emergence of dry building mixes and mixing equipment for production.

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