Empiricist Learning Rules on Social Networks: Convergence and Quality of Information Aggregation

2021 ◽  
Author(s):  
Thi Mai Anh Nguyen
2015 ◽  
Vol 2015 ◽  
pp. 1-15 ◽  
Author(s):  
Hao Guo ◽  
Zhongming Pan ◽  
Zhiping Huang ◽  
Jing Zhou

As wireless sensor networks (WSNs) often provide incorrect and outdated information about the events in a monitored environment, quality of information (QoI) assessment is invaluable for users to manage and use the information in particular applications. In this paper, we propose a flexible framework to dynamically assess the QoI in different WSN applications, with focus on accuracy and timeliness. Our framework is constructed on the infrastructure of an information aggregation procedure under some assumptions about the network. Based on information fusion theory, two processing models are adopted to assess the accuracy of low-level measurement data and high-level decision information without the need for Ground Truth (GT). Meanwhile, our framework generally exploits two respective models according to the specific category of the information timeliness in different delay-sensitive applications. To quantify the timeliness, we utilize a practical measurement method by means of timestamp to determine the information acquisition time. The framework is evaluated by simulations, including accuracy assessment in two environmental monitoring application scenarios, and timeliness assessment in two delay-sensitive application scenarios. The simulation results show that our framework is effective and flexible for quantitative assessment of the QoI in different WSN applications.


2021 ◽  
Author(s):  
◽  
Janet Mary Toland

<p>The term "Learning Region" is used to identify a region which is innovative, economically successful, and inhabited by citizens who are active members of their local community. Such regions are characterised by strong links between local businesses, community groups, and education providers. Within a regional area interaction and exchange of information is easier and cheaper than in a national or international context. The success of an individual organisation is directly related to the quality of information available locally. Information technology can be an important tool in improving the flow of knowledge between the stakeholders within a region. The study examines the role that information and communication technologies (ICTs) play in the development of learning regions in New Zealand, and how they can be used to improve the quality of information flows both within the region itself, and between the region and the outside world. In particular the research considers what contribution ICTs make to organisational learning and innovation. Historical methods are used to build up a picture of the significant changes that have taken place within two contrasting regions of New Zealand between 1985 and 2005. The two selected regions are Southland and Wellington. Data was collected by searching regional newspapers, and conducting interviews with key figures in each region. A "6-I" framework of the "ideal" features of a learning region was developed from the literature review and this was used to analyse the data. The findings show a clear linear progression in terms of the development of hard ICT based networks, but a less clear pattern in terms of soft social networks where the same issues were revisited a number of times over the years. Though there was evidence of a relationship between the soft networks that existed at the regional level and the utilisation of hard ICT networks within a region it was difficult to quantify. Hard and soft networks evolve differently over time and the relationship between the two is nuanced. Both regions were successful in setting up high quality ICT networks. However, with the exception of the education sector, both regions struggled to co-ordinate their soft networks. Though good social capital existed in each region, especially in Southland, it was located in different interest groups and was not easy to bring together. This lack of co-ordination meant that the possibilities opened up by ICT infrastructure in terms of increasing innovation were not fully realised. Both regions demonstrated many of the characteristics of learning regions but neither region was able to bring all aspects together to reach their full potential. The thesis demonstrates the important role that soft social networks play in the successful utilisation of ICT networks within a regional setting.</p>


2021 ◽  
Vol 8 (3) ◽  
pp. 384-388
Author(s):  
Blerim Dragusha ◽  
Vlora Prenaj

This paper focuses on the determinants of the impact of social networks on the recruitment process in Kosovar enterprises, concluding that the main factor of that impact is the quality of information, cost benefits, and timeliness. Another factor of particular importance is the competitive advantages social networks provide with respect to efficiently attracting suitable candidates to recruit through their unified data processing speed. The managers interviewed in this study provided evidence that recruitment using social networks is faster than with traditional methods. Social networks enable firms to quickly and easily access applicants from all over the world easily at a low cost. Social networks provide in-depth discussions to understand the views and opinions of both parties in the recruitment process. The information provided by social networks on the personal and professional life of the potential job candidate makes social networks an important tool for recruitment


2021 ◽  
Author(s):  
◽  
Janet Mary Toland

<p>The term "Learning Region" is used to identify a region which is innovative, economically successful, and inhabited by citizens who are active members of their local community. Such regions are characterised by strong links between local businesses, community groups, and education providers. Within a regional area interaction and exchange of information is easier and cheaper than in a national or international context. The success of an individual organisation is directly related to the quality of information available locally. Information technology can be an important tool in improving the flow of knowledge between the stakeholders within a region. The study examines the role that information and communication technologies (ICTs) play in the development of learning regions in New Zealand, and how they can be used to improve the quality of information flows both within the region itself, and between the region and the outside world. In particular the research considers what contribution ICTs make to organisational learning and innovation. Historical methods are used to build up a picture of the significant changes that have taken place within two contrasting regions of New Zealand between 1985 and 2005. The two selected regions are Southland and Wellington. Data was collected by searching regional newspapers, and conducting interviews with key figures in each region. A "6-I" framework of the "ideal" features of a learning region was developed from the literature review and this was used to analyse the data. The findings show a clear linear progression in terms of the development of hard ICT based networks, but a less clear pattern in terms of soft social networks where the same issues were revisited a number of times over the years. Though there was evidence of a relationship between the soft networks that existed at the regional level and the utilisation of hard ICT networks within a region it was difficult to quantify. Hard and soft networks evolve differently over time and the relationship between the two is nuanced. Both regions were successful in setting up high quality ICT networks. However, with the exception of the education sector, both regions struggled to co-ordinate their soft networks. Though good social capital existed in each region, especially in Southland, it was located in different interest groups and was not easy to bring together. This lack of co-ordination meant that the possibilities opened up by ICT infrastructure in terms of increasing innovation were not fully realised. Both regions demonstrated many of the characteristics of learning regions but neither region was able to bring all aspects together to reach their full potential. The thesis demonstrates the important role that soft social networks play in the successful utilisation of ICT networks within a regional setting.</p>


Complexity ◽  
2021 ◽  
Vol 2021 ◽  
pp. 1-13
Author(s):  
Jiawen Yan ◽  
Yuantao You ◽  
Yu Wang ◽  
Dongfang Sheng

With the development of social networks, the complexity of the factors affecting the users’ information dissemination is increasing and the complexity of online social networks and influencing factors of individual behaviors and attitudes make the development of online public opinion present a dynamic, complex, and multifactor evolution. Analyzing the influencing factors of public opinion dissemination is conducive to optimize company management and information diffusion management. However, there has been no comprehensive analysis of the complex factors that influence the dissemination of information; this study focused on synthesizing 20 empirical studies on the influencing factors of China public opinion dissemination from the perspective of the user, and a meta-analysis was conducted. We establish the influencing factors of users’ information adoption model from three aspects of information source reliability, perceived information quality, and the heat of public opinion events based on elaboration likelihood model. The results indicated that the main influencing factors of public opinion communication are authority, reliability, quality of information form, quality of information editing, quality of information utility, and event attendance preference. Among the factors, authority and quality of information editing have more significant impacts on users’ information adoption behavior in the dissemination of public opinion. In addition, whether the type of event was a public emergency had a moderating effect. The results are helpful to explore the universality of the influencing factors so as to help related regulators better build a multiangle supervision mechanism and conduct early warning of information diffusion.


2019 ◽  
Vol 14 (3) ◽  
pp. 1015-1061
Author(s):  
Pak Hung Au

An agent searches sequentially for advice from multiple experts concerning the payoff of taking an operation. After incurring a positive search cost, the agent can consult an expert whose interest is partially aligned with him. There are infinitely many experts, each has access to an identically and conditionally independent signal structure about the payoff, and each makes a recommendation after observing the signal realization. We find that the experts face a loser's curse, which could hamper the quality of information transmission. This effect is illustrated by studying the limit of equilibria with vanishing search cost. The main findings are as follows. First, there are signal structures with which both the agent's payoff and social welfare are strictly lower than the alternative scenario in which the agent commits to consulting a single expert only. Second, under some signal structures, no information can be transmitted in equilibrium, even though informative recommendation is possible if the agent could commit to a single expert. Finally, we identify the necessary and sufficient condition that ensures perfect information aggregation in the limit.


2021 ◽  
Author(s):  
Vitalina Gorova

The article explores the peculiarities of the use of social networks as an accessible tool and an important component of a territorial community’s information space (on the example of library institutions of the united territorial communities in Vinnytsia region). It attempts to structure its functions and capabilities for the local library. It focuses its attention on Facebook, being the most popular of social networks, and highlights its advantages. Based on a study of the official Facebook pages/groups of the library institutions of the administrative centers of urban united territorial communities in Vinnytsia region, the subject and quality of information content were clarified. The level of communication activity of subscribers/participants was also traced. After analyzing the level of audience involvement (number of subscribers relative to the population), posting activity (number of posts per day/month), user activity (set of reactions to the publication), feedback (quick access button), we obtained data indicating an average rate of the presence of posts on the page/in the group of the local library, which testifies to the irregularity of the publications. The assessment show that local libraries do not take full advantage of Facebook. First of all, the level of audience involvement and user activity (response to posts) needs to be increased. This can be achieved by expanding the topic and improving the quality of information content, as well as working to increase the post organic reach.


2021 ◽  
Author(s):  
Manuel Linares-Rufo ◽  
Laura Santos-Larrégola ◽  
Miguel Górgolas-Hernández-de-Mora ◽  
José-Manuel Ramos-Rincon

Abstract Background. About 10,000 imported cases of malaria are reported each year in Europe; 80 per 100,000 trips to endemic areas. Non-use of chemoprophylaxis in travelers remains the main reason for this. Travel blogs have proliferated throughout the network being a very common place to consult, sometimes the only one used, before preparing a trip to an endemic area. The aim of this study was to analyze the information offered on malaria in the main travel blogs in Spanish. Methods: we selected and analyzed 100 travel blogs that were considered highly relevant by its metrics: by 1) Social networks (RRSS) measuring the total followers of Facebook, Twitter, Instagram and YouTube), 2) number of monthly visits using the SEMrush tool; 3) Domain authority and 4) number of backlinks or incoming links considering the age and the percentage according to category using the SEMrush tool.Results: To this end, the 100 Spanish-language travel blogs with the greatest impact were selected and analyzed. The results showed a very low quality of information provided by these publications. The contents offered were generally insufficient, incomplete or, more seriously, inadequate. In many cases, this could encourage the user not to take the appropriate preventive measures.Conclusions: This study showed a low quality of travel blogs in Spanish regarding malaria. The so-called “travel influencers” must communicate reliable, verified and quality information on malaria on their channels in a way that could contribute to a reduction in the burden of the disease in our environment


2019 ◽  
Vol 27 (2) ◽  
pp. 119-133
Author(s):  
Putri Aprilia Isnaini ◽  
Ida Bagus Nyoman Udayana

This writing is done to determine the effect of information quality and service quality on attitudes in the use of application systems with the ease of use of the system as an intervining variable in online transportation services (gojek) in Yogyakarta. The sample in this study is customers who use online motorcycle transportation services in Yogyakarta. The sampling technique uses accidental sampling technique. Data collection is done by distributing online questionnaires through the Goegle form and distributed with social media such as WhatsApp and Instagram on a 1-4 scale to measure 4 indicators. The results of this study show 1) the quality of information affects the ease of use, 2) the quality of service affects the ease of use, 3) the quality of information influences attitudes in use, 4) the quality of services does not affect attitudes in use, and 5) ease of use attitude in use.


2020 ◽  
Vol 28 (1) ◽  
pp. 44
Author(s):  
Johar Arifin ◽  
Ilyas Husti ◽  
Khairunnas Jamal ◽  
Afriadi Putra

This article aims to explain maqâṣid al-Qur’ân according to M. Quraish Shihab and its application in interpreting verses related to the use of social media. The problem that will be answered in this article covers two main issues, namely how the perspective of maqâṣid al-Qur’ân according to M. Quraish Shihab and how it is applied in interpreting the verses of the use of social media. The method used is the thematic method, namely discussing verses based on themes. Fr om this study the authors concluded that according to M. Quraish Shihab there are six elements of a large group of universal goals of the al-Qur’ân, namely strengthening the faith, humans as caliphs, unifying books, law enforcement, callers to the ummah of wasathan, and mastering world civilization. The quality of information lies in the strength of the monotheistic dimension which is the highest peak of the Qur’anic maqâṣid. M. Quraish Shihab offers six diction which can be done by recipients of information in interacting on social media. Thus, it aims to usher in the knowledge and understanding of what is conveyed in carrying out human mission as caliph, enlightenment through oral and written, law enforcement, unifying mankind and the universe to the ummah of wasathan, and mastery of world civilization


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