scholarly journals Why does online collaboration work? Dependent judgments in sequential collaboration improve accuracy

2021 ◽  
Author(s):  
Maren Mayer ◽  
Daniel W. Heck
Keyword(s):  
Semantic Information ◽  
Knowledge Bases ◽  
Online Collaboration ◽  
The Internet ◽  
General Knowledge ◽  
Wisdom Of Crowds ◽  
Sequential Process ◽  
High Quality ◽  
Improve Accuracy ◽  
Working Together

On the internet, people often collaborate to generate extensive knowledge bases such as Wikipedia for semantic information or OpenStreetMap for geographic information. When contributing to such online projects, individual judgments follow a sequential process in which one contributor creates an entry and other contributors have the possibility to modify, extend, and correct the entry by making incremental changes. We refer to this way of working together as sequential collaboration because it is characterized by dependent judgments that are based on the latest judgment available. Since the process of correcting each other in sequential collaboration has not yet been studied systematically, we compare the accuracy of sequential collaboration and wisdom of crowds, the aggregation of a set of independent judgments. In three experiments with groups of four or six individuals, accuracy for answering general knowledge questions increased within sequences of judgments in which participants had the possibility to correct the judgment of the previous contributor. Moreover, the final individual judgments in sequential collaboration were slightly more accurate than the averaged judgments in wisdom of crowds. This shows that collaboration can benefit from the dependency of individual judgments, thus explaining why large collaborative online projects often provide data of high quality.

Detecting “DeepFakes” in H.264 Video Data Using Compression Ghost Artifacts

2020 ◽  
Vol 2020 (4) ◽  
pp. 116-1-116-7
Author(s):  
Raphael Antonius Frick ◽  
Sascha Zmudzinski ◽  
Martin Steinebach
Keyword(s):  
Image Forensics ◽  
Video Data ◽  
Experimental Results ◽  
Video Sequences ◽  
The Internet ◽  
Video Content ◽  
High Quality ◽  
The Public

In recent years, the number of forged videos circulating on the Internet has immensely increased. Software and services to create such forgeries have become more and more accessible to the public. In this regard, the risk of malicious use of forged videos has risen. This work proposes an approach based on the Ghost effect knwon from image forensics for detecting forgeries in videos that can replace faces in video sequences or change the mimic of a face. The experimental results show that the proposed approach is able to identify forgery in high-quality encoded video content.

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.

Ontology Construction Research for the Mobile Phones' Reviews on the Internet

2014 ◽  
Vol 602-605 ◽  
pp. 3363-3366
Author(s):  
Yi Ming Sun ◽  
Chun Lei Han
Keyword(s):  
Mobile Phone ◽  
Mobile Phones ◽  
Semantic Information ◽  
Domain Ontology ◽  
University Research ◽  
New Method ◽  
The Internet ◽  
Stanford University ◽  
Information Mining ◽  
Ontology Construction

In order to automatically identify the mobile phones' reviews that the users comment on the mobile phone on the internet and obtain valuable information from the reviews, this paper presents the process of constructing ontology for the mobile phones' reviews and preliminarily establish a domain ontology of the mobile phones' reviews. The ontology construction adopts the Protégé tool and the Seven Steps method of Stanford University research. The ontology can provide convenience for the semantic information mining on Web mobile phones' reviews, and it can provide a new method to effectively mine the use feelings of the phone from a large number of mobile phone users' reviews.

The Internet — A New Dimension in University—Industry Collaboration

1997 ◽  
Vol 11 (6) ◽  
pp. 349-354 ◽  
Author(s):  
C. Grant ◽  
T. Scott
Keyword(s):  
Communication Networks ◽  
High Speed ◽  
Advanced Technology ◽  
The Internet ◽  
Industry Collaboration ◽  
Working Together ◽  
Working Day ◽  
Technology And Communication ◽  
The Cost ◽  
University Industry

This paper examines how advanced technology and communication networks are revolutionizing the way university researchers, scientists and industrialists are communicating and working together. In collaborative projects, partners often come from different environments, backgrounds and possibly different regions and countries. Barriers such as geographical remoteness, lack of time in the working day, the cost of travel and differences in culture can seriously hinder regular communication and development work. However the Internet is fast becoming an indispensable international communications tool. It constitutes a resource that is invaluable to the knowledge and technology transfer process. It links over two-thirds of universities and is enabling industry and universities all over the world to develop in new and exciting ways – although there are both opportunities and threats associated with its explosive growth. This paper illustrates how the authors have gained advantage by exploiting current technology to form successful partnerships in this new high-speed ‘no boundaries’ information age.

scholarly journals Quality Assessment of Online Complementary and Alternative Medicine Information Resources Relevant to Cancer

2021 ◽  
Vol 20 ◽  
pp. 153473542110660
Author(s):  
Megan E. Sansevere ◽  
Jeffrey D. White
Keyword(s):  
Alternative Medicine ◽  
Quality Assessment ◽  
Complementary And Alternative Medicine ◽  
Cancer Patients ◽  
Health Information ◽  
Cancer Center ◽  
The Internet ◽  
Healthcare Team ◽  
High Quality ◽  
Complementary And Alternative

Background: Complementary and alternative medicine (CAM) is often used by cancer patients and survivors in the US. Many people turn to the internet as their first source of information. Health information seeking through the internet can be useful for patients to gain a better understanding of specific CAM treatments to discuss with their healthcare team, but only if the information is comprehensive, high quality, and reliable. The aim of this article is to examine the content, writing/vetting processes, and visibility of cancer CAM online informational resources. Methods: Online CAM resources were identified by Google and PubMed searches, literature reviews, and through sources listed on various websites. The websites were analyzed through a modified online health information evaluation tool, DISCERN (score range = 1-5). The website’s features relevant to the quality assessment were described. Results: Eleven CAM websites were chosen for analysis. The DISCERN analysis showed a range of quality scores from 3.6 to 4.9. Lower DISCERN scores were generally due to deficiencies in describing the writing, editing, and updating processes. A lack of transparency with authorship and references was commonly present. Conclusion: Cancer patients interested in CAM need unbiased, evidence-based, reliable, high-quality, easily accessible educational materials. Individuals should use the guidelines followed in this analysis (including DISCERN and Medline Plus) to find reliable sources. Website developers can use CAM Cancer (NAFKAM), Beyond Conventional Cancer Therapies, Memorial Sloan Kettering Cancer Center, breastcancer.org , Office of Dietary Supplements, National Center for Complementary and Integrative Health, and Cancer.gov as models for trustworthy content.

scholarly journals Research on transformation and upgrading of Liuzhou fitness industry under the “Internet +” service platform

2021 ◽  
Vol 336 ◽  
pp. 09029
Author(s):  
Yi Xie ◽  
Shijun Xu ◽  
Yanping Yang
Keyword(s):  
Prevention And Control ◽  
Virus Disease ◽  
The Internet ◽  
Supply Side ◽  
High Quality ◽  
Service Platform ◽  
Internet Service ◽  
Environment Management ◽  
Fitness Industry ◽  
And Control

Under the current situation of prevention and control Corona Virus Disease 2019(COVID-19), the development of fitness industry in Liuzhou is analyzed, and the survival environment, management, coaches' quality and reasons for the closure of the club are analyzed. The results show that Liuzhou fitness market is greatly affected by the economic and social environment, and the seemingly prosperous fitness market has met with bottlenecks, and its operation is in danger. Taking “Internet+” as a new power engine, we should build a service platform of Liuzhou fitness alliance, strengthen the supply side reform such as management and coach quality, increase effective supply of high quality, and guide clubs to play their own advantages to develop differentiated competition, which is an effective way to promote the transformation and upgrading of traditional fitness industry.

scholarly journals Pop-Science on the Internet: How ULISSE Makes the Ends Meet

10.28945/2459 ◽  
2002 ◽  
Author(s):  
Simona Cerrato
Keyword(s):  
Information Technology ◽  
General Public ◽  
Scientific Community ◽  
Scientific Information ◽  
High Technology ◽  
The Internet ◽  
High Quality ◽  
Increasing Demand ◽  
Set Up

There is an increasing demand for what we can call pop-science that is pertinent scientific information dedicated to the non-specialists. This demand comes both from professional categories and the general public. Simultaneously in the scientific community there is an increasing consciousness that diffusion of the scientific information is an asset the scientific community cannot afford to overlook. The Internet is a perfect tool to meet this demand. It reaches a large and ever-increasing number of people and permits an interactive and detailed exchange of information. As an experiment of how to combine high quality services and the information technology, we have set up Ulisse - In the net of science (http://ulisse.sissa.it), an innovative Italian project for the popularisation of science via the Internet. Its main purpose is to establish a connection between scientists and the general public. Ulisse is based on three major characteristics: a) high technology to create an efficient and friendly system, b) customisation of the services, c) a network of scientists, which guaranteed the quality of the materials.

scholarly journals Assessing the Usability of Online Food Ordering Websites Using a New Fuzzy Kano Method: Implications for Improvement

2019 ◽  
Vol 14 (10) ◽  
pp. 87 ◽  
Author(s):  
Arshia Taimouri ◽  
Korosh Emamisaleh ◽  
Davoud Mohammadi
Keyword(s):  
Customer Satisfaction ◽  
Rapid Development ◽  
Complete Information ◽  
Study Data ◽  
Design Parameters ◽  
The Internet ◽  
High Quality ◽  
Essential Point ◽  
The Right ◽  
Important Design

Following the rapid development of the Internet, e-commerce websites are widely used today for various goals. An essential point in the prosperity of these websites is their level of usability. Accordingly, measuring this usability is indispensable for these websites to check whether they are moving in the right path. Thus, in this article, the usability scores of five well-known online food-ordering websites in Iran have been evaluated using a novel fuzzy Kano method with respect to design parameters. In addition to assessing usability scores, the design parameters of these websites have been classified and reviewed in a detailed manner in order to determine the design priorities of these websites as one of the main results of this study. Data were gathered using a questionnaire with 190 respondents. Results demonstrated that Snappfood is the best online food-ordering website in Iran. In addition, sorting restaurants based on customer satisfaction score, using high-quality images of foods along with the image zooming feature, and the existence of complete information about foods and restaurants are the most effective and important design parameters of these types of websites according to the findings of this study.

scholarly journals Design of Optimized Multimedia Data Streaming Management Using OMDSM over Mobile Networks

2017 ◽  
Vol 2017 ◽  
pp. 1-13 ◽  
Author(s):  
Byungjoo Park ◽  
Ankyu Hwang ◽  
Haniph Latchman
Keyword(s):  
Mobile Networks ◽  
Mobility Management ◽  
Multimedia Data ◽  
Route Optimization ◽  
Mobile Marketing ◽  
The Internet ◽  
Data Streaming ◽  
Mobile Nodes ◽  
Tcp Performance ◽  
High Quality

Mobility management is an essential challenge for supporting reliable multimedia data streaming over wireless and mobile networks in the Internet of Things (IoT) for location-based mobile marketing applications. The communications among mobile nodes for IoT need to have a seamless handover for delivering high quality multimedia services. The Internet Engineering Task Force (IETF) mobility management schemes are the proposals for handling the routing of IPv6 packets to mobile nodes that have moved away from their home network. However, the standard mobility management scheme cannot prevent packet losses due to longer handover latency. In this article, a new enhanced data streaming route optimization scheme is introduced that uses an optimized Transmission Control Protocol (TCP) realignment algorithm in order to prevent the packet disordering problem whenever the nodes in the IoT environment are communicating with each other. With the proposed scheme, data packets sequence realignment can be prevented, the packet traffic speed can be controlled, and the TCP performance can be improved. The experimental results show that managing the packet order in proposed new scheme remarkably increases the overall TCP performance over mobile networks within the IoT environment thus ensuring the high quality of service (QoS) for multimedia data streaming in location-based mobile marketing applications.

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