From Words to Images: The Rise and Treatment of Visual Public Opinion in the Post-epidemic Era

2021 ◽  
Vol 2 (2) ◽  
pp. 242-249
Author(s):  
Wu Yi
Keyword(s):  
Public Opinion ◽  
Communication Technology ◽  
Competent Authority ◽  
Video Content ◽  
Mainstream Media ◽  
Quality Video ◽  
Media Platform ◽  
High Quality Video ◽  
Communication Methods

The rise of short videos in the Post-epidemic era have caused the migration of Internet traffic to visual content. This new form of media based on communication technology and algorithm technology can arouse more emotional resonances of audiences, which promotes the formation of a Visual Public opinion field. The emergence of this public opinion field not only increases the risk of public opinion crises such as rumors and extreme views, but also points out the current direction of public opinion governance, and shows the importance of making good use of visual communication methods. Based on this, mainstream media needs to integrate and lead the visual public opinion field by entering the video media platform, producing high-quality video content, and reconstructing the visual public opinion ecology; the competent authority should do a good job in the visual public opinion field from the three aspects of ideology, technology and content. Supervision and governance work will promote a good long-term growth of visual public opinion field.

scholarly journals Factors Affecting the Popularity of Video Content on Live-Streaming Services: Focusing on V Live, the South Korean Live-Streaming Service

2020 ◽  
Vol 12 (5) ◽  
pp. 1784 ◽  
Author(s):  
Minjeong Ham ◽  
Sang Woo Lee
Keyword(s):  
Live Streaming ◽  
Cumulative Number ◽  
Video Content ◽  
Factors Affecting ◽  
South Korean ◽  
Key Characteristics ◽  
Quality Video ◽  
Streaming Service ◽  
High Quality Video ◽  
Production Company

Naver V Live, a South Korean live-streaming service, showcases video contents specific to the entertainment industry, such as K-pop and music. On V Live, K-pop stars and their fans can interact directly in a natural way, and V Live provides high-quality video content with novel topics. This study has identified key characteristics of video content that affect its popularity. A total of 620 video contents of five leading Star channels were classified on the basis of production company, type of video content, and whether it was live-streamed or not. The popularity of video content was measured by the number of comments, hearts, and views. To control potential bias, additional variables were set as control variables—such as the number of channel subscribers, mini-album sales, if the video content was previewed, and cumulative number of days since the video content was uploaded. For analysis, a hierarchical linear regression was conducted. The findings suggest future directions in video content planning.

Per Clip Lagrangian Multiplier Optimisation for HEVC

2020 ◽  
Vol 2020 (10) ◽  
pp. 136-1-136-7
Author(s):  
Daniel J Ringis ◽  
François Pitié ◽  
Anil Kokaram
Keyword(s):  
Video Compression ◽  
Rate Distortion ◽  
Lagrangian Multiplier ◽  
Video Content ◽  
Compression Performance ◽  
Quality Video ◽  
Rate Improvement ◽  
Optimisation Methods ◽  
High Quality Video ◽  
The Impact

The majority of internet traffic is video content. This drives the demand for video compression in order to deliver high quality video at low target bitrates. This paper investigates the impact of adjusting the rate distortion equation on compression performance. An constant of proportionality, k, is used to modify the Lagrange multiplier used in H.265 (HEVC). Direct optimisation methods are deployed to maximise BD-Rate improvement for a particular clip. This leads to up to 21% BD-Rate improvement for an individual clip. Furthermore we use a more realistic corpus of material provided by YouTube. The results show that direct optimisation using BD-rate as the objective function can lead to further gains in bitrate savings that are not available with previous approaches.

QoS - Aware Digital Video Retrieval Application

2011 ◽  
pp. 172-185
Author(s):  
Tadeusz Czachorski ◽  
Stanislaw Jedrus ◽  
Maciej Zakrzewicz ◽  
Janusz Gozdecki ◽  
Piotr Pacyna ◽  
...  
Keyword(s):  
System Performance ◽  
Driving Forces ◽  
Video Retrieval ◽  
Ip Networks ◽  
Control Mechanisms ◽  
Video Content ◽  
Quality Video ◽  
Systems Modelling ◽  
High Quality Video

Delivering high quality video content to customers is now expected to be one of the driving forces for the evolution of the Internet as it can be deployed in many niches of the emerging e-market. This chapter presents an originally developed Video Retrieval application with its unique features including a flexible user interface based on HTTP browser for content querying and browsing, support for both unicast and multicast addressing and a user-oriented control of QoS of video streaming in Integrated Services IP networks. The remaining part of the chapter is devoted to some selected methods of information systems’ modelling requested for the prediction of a system performance and an influence of different control mechanisms on quality of service perceived by end users.

scholarly journals Fuzzy-Based Quality Adaptation Algorithm for Improving QoE from MPEG-DASH Video

2021 ◽  
Vol 11 (11) ◽  
pp. 5270
Author(s):  
Waqas ur Rahman ◽  
Md Delowar Hossain ◽  
Eui-Nam Huh
Keyword(s):  
State Of The Art ◽  
Video Quality ◽  
Buffer Size ◽  
Bandwidth Utilization ◽  
Adaptation Algorithm ◽  
Control Laws ◽  
Quality Video ◽  
Video Player ◽  
High Quality Video ◽  
Abr Algorithm

Video clients employ HTTP-based adaptive bitrate (ABR) algorithms to optimize users’ quality of experience (QoE). ABR algorithms adopt video quality based on the network conditions during playback. The existing state-of-the-art ABR algorithms ignore the fact that video streaming services deploy segment durations differently in different services, and HTTP clients offer distinct buffer sizes. The existing ABR algorithms use fixed control laws and are designed with predefined client/server settings. As a result, adaptation algorithms fail to achieve optimal performance across a variety of video client settings and QoE objectives. We propose a buffer- and segment-aware fuzzy-based ABR algorithm that selects video rates for future video segments based on segment duration and the client’s buffer size in addition to throughput and playback buffer level. We demonstrate that the proposed algorithm guarantees high QoE across various video player settings and video content characteristics. The proposed algorithm efficiently utilizes bandwidth in order to download high-quality video segments and to guarantee high QoE. The results from our experiments reveal that the proposed adaptation algorithm outperforms state-of-the-art algorithms, providing improvements in average video rate, QoE, and bandwidth utilization, respectively, of 5% to 18%, about 13% to 30%, and up to 45%.

scholarly journals Online Opioid Stewardship Training for Long-Term Care Staff

2020 ◽  
Vol 4 (Supplement_1) ◽  
pp. 533-533
Author(s):  
Linda Edelman ◽  
Troy Andersen ◽  
Cherie Brunker ◽  
Nicholas Cox ◽  
Jorie Butler ◽  
...  
Keyword(s):  
Staff Training ◽  
Long Term Care ◽  
Treatment Strategies ◽  
Care Staff ◽  
Video Content ◽  
Opioid Use ◽  
Term Care ◽  
Increased Risk ◽  
Pain Management Strategy

Abstract Opioids are often the first-line chronic pain management strategy for long-term care (LTC) residents who are also at increased risk for opioid-related adverse events. Therefore, there is a need to train LTC providers and staff about appropriate opioid use and alternative treatment strategies. Our interdisciplinary team worked with LTC partners to identify staff educational needs around opioid stewardship. Based on this need’s assessment, we developed eight modules about opioid use and risks for older adults, including those with dementia, recommendations for de-prescribing including other pharmacological and non-pharmacological alternatives, SBIRT, and motivational interviewing to determine “what matters”. Each 20-minute module contains didactic and video content that is appropriate for group staff training or individuals and provides rural LTC facilities access to needed training in their home communities. Within the first month of launching online, the program received over 1100 hits and LTC partners are incorporating modules into clinical staff training schedules.

scholarly journals Regional education on endoscopic surgery using a teleconference system with high-quality video via the internet: Saga surgical videoconferences

2020 ◽  
Vol 20 (1) ◽  
Author(s):  
Tatsuya Manabe ◽  
Mitsuhiro Takasaki ◽  
Takao Ide ◽  
Kenji Kitahara ◽  
Seiji Sato ◽  
...  
Keyword(s):  
Endoscopic Surgery ◽  
Educational System ◽  
High Speed ◽  
The Internet ◽  
Web Conferencing ◽  
High Quality ◽  
Anatomical Structures ◽  
Quality Video ◽  
High Quality Video ◽  
Conferencing System

Abstract Background Effective education about endoscopic surgery (ES) is greatly needed for unskilled surgeons, especially at low-volume institutions, to maintain the safety of patients. We have tried to establish the remote educational system using videoconference system through the internet for education about ES to surgeons belonging to affiliate institutions. The aim of this manuscript was to report the potential to establish a comfortable remote educational system and to debate its advantages. Methods We established a local remote educational conference system by combining the use of a general web conferencing system and a synchronized remote video playback system with annotation function through a high-speed internet. Results During 2014–2019, we conducted 14 videoconferences to review and improve surgeons’ skills in performing ES at affiliated institutions. At these conferences, while an uncut video of ES that had been performed at one of the affiliated institutions was shown, the surgical procedure was discussed frankly, and expert surgeons advised improvements. The annotation system is useful for easy, prompt recognition among the audience regarding anatomical structures and procedures that are difficult to explain verbally. Conclusions This system is of low initial cost and offers easy participation and high-quality videos. It would therefore be a useful tool for regional ES education.

LEVERAGE: Reciprocal peer tutoring over broadband networks

ReCALL ◽  
1999 ◽  
Vol 11 (1) ◽  
pp. 133-142 ◽  
Author(s):  
Jan Wong ◽  
Agnès Fauverge
Keyword(s):  
Language Learning ◽  
Peer Tutoring ◽  
Computer Network ◽  
Web Based ◽  
Application Sharing ◽  
Quality Video ◽  
Reciprocal Peer Tutoring ◽  
Set Up ◽  
High Quality Video ◽  
Experimental Use

This paper reports on the experimental use of a broadband computer network hypermedia environment for language learning (French, English and Spanish). Using Web-based resources, students engage in a collaborative task over a network which offers high quality video-conferencing, application sharing and access to authentic multimedia resources. One of the main aims was to establish the practicalities of providing learners of languages with opportunities to engage in reciprocal peer tutoring. After outlining the pedagogical assumptions, and describing the set-up of the network-based learning environment, the trials are analysed, and the effectiveness of network-based language learning in supporting collaborative learning is discussed.

Measuring Dynamic Sales Impacts of LBA Using Wireless Communication Technology

2013 ◽  
Vol 662 ◽  
pp. 896-901
Author(s):  
Zong Jin Liu ◽  
Yang Yang ◽  
Zheng Fang ◽  
Yan Yan Xu
Keyword(s):  
Wireless Communication ◽  
Error Correction ◽  
Communication Technology ◽  
Dynamic Error ◽  
Rapid Development ◽  
Vector Autoregressive ◽  
Vector Error Correction ◽  
Vector Error ◽  
Equilibrium Relationship

Because of rapid development of wireless communication technology, there is an increasing adoption of mobile advertising, such as location based advertising (LBA). To what extent can LBA improve advertising effectiveness is an important topic in the field of wireless communication technology research. Most researches quantify long term impacts of advertisings by VAR (Vector Autoregressive) model. However, compared to VAR model, VECM (Vector Error Correction Model) is a better method in that it allows one to estimate both a long-term equilibrium relationship and a short-term dynamic error correction process. In this study, we employ VECM to explore LBA’s (Location Based Advertising) and PUA’s (Pop-up Advertising) sales impact in both short and long terms. The developed VECM reveals that LBA’s sales impact is about more than2 times as big as PUA’s in short dynamic term and nearly 6 times bigger than PUA’s in long equilibrium term. These findings add to advertising and VECM literatures. These results can give managers more confident to apply wireless communication technology to advertising.

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