ETree: Effective and Efficient Event Modeling for Real-Time Online Social Media Networks

Author(s):  
Hansu Gu ◽  
Xing Xie ◽  
Qin Lv ◽  
Yaoping Ruan ◽  
Li Shang
2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Sakthi Kumar Arul Prakash ◽  
Conrad Tucker

AbstractThis work investigates the ability to classify misinformation in online social media networks in a manner that avoids the need for ground truth labels. Rather than approach the classification problem as a task for humans or machine learning algorithms, this work leverages user–user and user–media (i.e.,media likes) interactions to infer the type of information (fake vs. authentic) being spread, without needing to know the actual details of the information itself. To study the inception and evolution of user–user and user–media interactions over time, we create an experimental platform that mimics the functionality of real-world social media networks. We develop a graphical model that considers the evolution of this network topology to model the uncertainty (entropy) propagation when fake and authentic media disseminates across the network. The creation of a real-world social media network enables a wide range of hypotheses to be tested pertaining to users, their interactions with other users, and with media content. The discovery that the entropy of user–user and user–media interactions approximate fake and authentic media likes, enables us to classify fake media in an unsupervised learning manner.


Author(s):  
S. Thanuskodi ◽  
A. Alagu

ABSTRACT In this chapter, Social Media Networks (SMNs), a subset of ICTs, are defined as online tools and utilities that allow communication of information online and participation and collaboration. Additionally, social media tools are websites that interact with the users, while giving them information. It is this two-way nature of SMNs that is central to this argument, and the role they played in the Egyptian uprisings. This chapter further defines the four most widely and effectively used SMNs: Facebook, Twitter, YouTube, and blogging. It is observed that only 81.75% of the respondents have their own blog, 73.64% of the respondents read blogs, while 74.32% of respondents add posts to blogs. The study shows the respondents' extent of level of use of specific online social media by gender.


Author(s):  
Gustavo Morales-Alonso ◽  
Guzmán A. Vila ◽  
Isaac Lemus-Aguilar ◽  
Antonio Hidalgo

Purpose Entrepreneurship is the basis of economic development but is somehow limited by the lack of access to financing sources, especially in the crucial moments of start-up early-stage development. For crossing the so-called “valley of death,” start-ups need to access informal finance sources, such as business angels. This study aims at defining the profile of business angels and comparing it with the existing literature. Design/methodology/approach A novel methodology for sampling the business angles population has been used, which extracts data from online social media networks. This allows taking a closer look at informal sources of entrepreneurial finance. A total of 500 real business angels, acting worldwide, from the LinkedIn and Crunchbase databases has been retrieved for this study. Findings Results point out that younger investors seem to be entering the entrepreneurial informal finance market. They are mainly males between 40 and 50 years of age, with a previous entrepreneurial record, and more highly educated than previously stated. They tend to have studies from Business Administration and Economics, although they prefer to invest in the ICT sector. Originality/value Besides the novel data retrieval technique for analyzing the informal sources of finance, the originality of the work lies in updating the archetype for business angels.


2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Geeta Marmat

Purpose Marketing and branding literature has provided important insights into the context, environment and individual factors that shape customer brand experience. However, a holistic view on context and environmental influence on enhancing brand experience, specifically in the online social media network context, has not been considered. In addition, main focus of the previous research is on antecedent and consequence of brand experience rather strategy for enhancing brand experience. This paper aims to propose a contingency model for enhancing brand experience to provide a more holistic framework in the uncertain and complex nature of online social media network. Design/methodology/approach The proposed framework is based on previous literature that is identified and integrated to propose effectiveness of the contingent determinants on brand experience in different interactional circumstances. Findings The proposed framework implies that brand characteristics and interactive complexities of online social media networks cause contingency to the marketers or brands’ strategic attempt in delivering superior brand experience in online social media network context. These forces are as follows: online social media network characteristic (interactivity); brands’ co-creation characteristics (consumers’ and stakeholders’ participation); brand’s technical and operational competency (brands’ knowledge, ease of interactive platform); internal human resource characteristics (employees’ behaviour, brands culture, brands reputation); and customer interactive characteristics (customer demographic characteristics, customer motivation, customer attitude). These identified forces can be optimized to formulate strategies in the interactive medium for enhancing brand experience. Research limitations/implications This paper proposes a contingency model as well as research propositions that need to be validated and confirmed empirically. While narrowing down the current identified gap in brand experience literature by proposing a novel perspective to the concept, this research broadens and deepens understanding of the concept of brand experiences, how it is linked to the context and contextual factors. This contingency framework elucidates the resources that marketers, practitioners can use to enhance, limit or maintain all the dimensions within brand experience. Originality/value A holistic view on context and environmental influence on enhancing brand experience, specifically in the online social media network context, has not been considered so far. Although literature demonstrates the positive outcome of brand experience, little attention has been paid to enhancing customer brand experience, specifically in the context of online social media networks with various complex forces acting and influencing the way customers experience a brand.


2018 ◽  
pp. 321-335
Author(s):  
Kendra N. Bryant

In this chapter, the author argues that although integrating online social media networks into a traditional writing classroom seems timely, cutting edge, and apropos to students' current past-time activities, teachers have the opportunity to create more meaningful classroom activities with social media if they first: consider students' trepidation regarding such non-traditional classroom activities; and second: realize socially-networked students don't necessarily translate into career-ready students. By way of two in-class Q&A sessions, the author discovers that her Technical Writing students need less instruction on how to use social media academically, and more instruction on how to use social media to brand and market themselves professionally. In a chapter grounded in student response, readers receive her student feedback about the effects of integrating social media networks into their writing classroom in an effort to assist teachers more purposely integrate social media into their traditional classroom spaces.


Author(s):  
Khaled Salmen Aljaaidi

The purpose of this study was to examine the impact of the online social media networks (OSMNs) on productivity at workplace among 88 administrative staff at Prince Sattam bin Abdulaiziz University for the academic year 2020-2021. This study finds that using online social media networks by PSAU’s employees at the workplace enhances their productivity. The majority of the employees (59%) perceive that using the OSMNs at workplace have a positive impact on their productivity. In addition, the majority of the employees (33%) regu-larly use WhatsApp as a useful online social media network at the workplace. The results also indicate that the majority of the employees (66%) use the OSMNs at workplace more than once a day. Further, the majority of the PSAU’s employees (39%) use the OSMNs at work-place less than half an hour per a day. Furthermore, 39% of the PSAU’s employees use the OSMNs at workplace to keep in touch with their families and friends, and 34% of the employees use the OSMNs to search for work-related information. The results of this study should be useful to policy makers in Saudi Arabia at the country, ministry of education, PSAU, and elsewhere in gaining a deeper understanding on how using the OSMNs at work-place can enhances the employees’ productivity.


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