Search results for "SOCIAL NETWORK"
showing 10 items of 537 documents
Evaluating security and privacy issues of social networks based information systems in Industry 4.0
2022
[EN] The present study aimed to analyse the main risks related to security and privacy of social networks based information systems in Industry 4.0. The methodology we used is an innovative exploratory data-driven process divided into three steps. First, we performed sentiment analysis to divide the database composed of 67, 206 tweets into feelings. Second, we applied a topic-modelling algorithm to extract topics. Third, we applied textual analysis to collect insights. A total of 10 topics related to security and privacy issues were identified as results. The paper concludes with a discussion of the challenges and main concerns related to the identified topics.
Distributed Coverage of Ego Networks in F2F Online Social Networks
2016
Although most online social networks rely on a centralized infrastructure, several proposals of Distributed Online Social Networks (DOSNs) have been recently presented. Since in DOSNs user profiles are stored on the peers of the users belonging to the network, one of the main challenges comes from guaranteeing the profile availability when the owner of the data is not online. In this paper, we propose a DOSN based on a friend-to-friend P2P overlay where the user's data is stored only on friend peers. Our approach is based on the ego-network concept, which models the social network from the local point of view of a single user. We propose a distributed algorithm which is based on the notion …
Privacy and temporal aware allocation of data in decentralized online social networks
2017
Distributed Online Social Networks (DOSNs) have recently been proposed to grant users more control over the data they share with the other users. Indeed, in contrast to centralized Online Social Networks (such as Facebook), DOSNs are not based on centralized storage services, because the contents shared by the users are stored on the devices of the users themselves. One of the main challenges in a DOSN comes from guaranteeing availability of the users' contents when the data owner disconnects from the network. In this paper, we focus our attention on data availability by proposing a distributed allocation strategy which takes into account both the privacy policies defined on the contents an…
A Survey on Privacy in Decentralized Online Social Networks
2018
Decentralized Online Social Networks (DOSNs) have recently captured the interest of users because of the more control given to them over their shared contents. Indeed, most of the user privacy issues related to the centralized Online Social Network (OSN) services (such as Facebook or Google+) do not apply in the case of DOSNs because of the absence of the centralized service provider. However, these new architectures have motivated researchers to investigate new privacy solutions that allow DOSN’s users to protect their contents by taking into account the decentralized nature of the DOSNs platform. In this survey, we provide a comprehensive overview of the privacy solutions adopted by…
To Share or Not to Share: Supporting the User Decision in Mobile Social Software Applications
2007
User's privacy concerns represent one of the most serious obstacles to the wide adoption of mobile social software applications. In this paper, we introduce a conceptual model which tackles the problem from the perspective of trade-off between privacy and trust, where the user takes the decision with minimal privacy loss. To support the user decision, we introduce the Mobile Access Control List (Macl), a privacy management mechanism which takes into account the user attitude towards mobile sharing, his communication history and social network relationships.
Privacy in Social Network Sites
2011
Are we running out of privacy? Nowadays, for example, we are concerned about whether the maintenance of a private sphere in online environments has become a luxury commodity (Papacharissi 2009). Questions of this kind are justified as online communication plays an increasingly important role in people’s everyday life (cf., e.g., Lundby 2009). While it seems exaggerated to stigmatize today’s youth as “communication junkies” (Patalong 2010), online conversations are increasingly becoming a functional equivalent to face to face communication (Beer 2008). However, some significant differences between online and “offline” communication remain. Face to face communication may remain largely intima…
Rings for privacy: An architecture for privacy-preserving user profiling
2014
Interaction Theory and the Social Network
1967
Interaction theorists have delineated the close association in friendship relations between value consensus, affectional closeness, and interaction. Categorical investigations of the social network have focused upon frequency of interaction with friends and kin. In the present paper a componential theory of attraction in the social network is developed in order to link previous theoretical discussions with the empirical social network categories. Two attractional variables, one based upon consensus and the other upon positive concern, are perceived as interpreting friendship and kinship involvements. Consensus tends to be modal in friendship and positive concern in kinship, though there are…
LAS REDES SOCIALES VIRTUALES Y LAS MARCAS: INFLUENCIA DEL INTERCAMBIO DE EXPERIENCIAS eC2C SOBRE LA ACTITUD DE LOS USUARIOS HACIA LA MARCA
2013
RESUMENFrente a la irrupción de los nuevos medios de comunicación digital, las marcas se enfrentan al desafio de encontrar nuevos formatos, tonos y contenidos que capturen la atención de los usuarios que navegan por las redes sociales. Este artículo indaga la eficacia publicitaria de las campañas en redes sociales virtuales (actitud hacia el anuncio, actitud hacia la marca e intención de compra) utilizando el Modelo de Mediación Dual y el MOA (motivación, oportunidad, habilidad). Los resultados constatan la influencia que el intercambio de experiencias eC2C (experiencias online entre consumidores) tiene en la actitud hacia la marca y de ésta en la intención de compra y en el eWOM (boca a oí…
La internacionalização das universidades valencianas através do Twitter
2019
Internationalization policies are becoming very important in the institutional communication strategies of Spanish universities. Social networks are presented as the best channel to build the brands of universities in search of students and researchers to increase their international projection. This research analyzes how the five public universities of the Valencian Community take advantage of corporate communication through Twitter to increase their internationalization policies. The study shows that actions related to knowledge transfer and innovation dominate the institutional communication of the examined universities on Twitter. La internacionalización está cobrando gran importancia e…