Search results for "Social Networks"
showing 10 items of 164 documents
YouTube and influencers in childhood. Content analysis and educational proposals
2020
RESUMEN: La presencia de las tecnologías móviles e Internet entre los niños y jóvenes está generando nuevos marcos de comprensión, interacción y consumo de medios y contenidos. YouTube se ha convertido en una de las plataformas más utilizadas por estos, lo cual exige investigar las repercusiones ejercidas por estos influencers en los niños. En el presente trabajo se realiza una contextualización teórica sobre el nuevo entorno digital en el que Internet y las redes sociales forman parte indiscutible de la cotidianeidad, para avanzar hacia un marco metodológico y de investigación de los principales YouTubers seguidos por niños/as de Educación Primaria en España. Se ha utilizado una metodologí…
Marketing communication metrics for social media
2011
The objective of this paper is to develop a conceptual framework for measuring the effectiveness of social media marketing communications. Specifically, we study whether the existing marketing communications performance metrics are still valid in the changing digitalised communications landscape, or whether it is time to rethink them, or even to devise entirely new metrics. Recent advances in information technology and marketing bring a need to re-examine measurement models. We combine two important research topics and set directions for potential future research. Metrics to measure marketing communications performance have developed towards a customer orientation. There is no broadly accep…
Découverte des relations dans les réseaux sociaux
2011
In recent years, social network sites exploded in popularity and become an important part of the online activities on the web. This success is related to the various services/functionalities provided by each site (ranging from media sharing, tagging, blogging, and mainly to online social networking) pushing users to subscribe to several sites and consequently to create several social networks for different purposes and contexts (professional, private, etc.). Nevertheless, current tools and sites provide limited functionalities to organize and identify relationship types within and across social networks which is required in several scenarios such as enforcing users’ privacy, and enhancing t…
Scientific networks and research groups development: educational Psychology case in Spain during the five-year periods 2004-2008 and 2009-2013
2017
El objetivo de este estudio ha sido identificar y conocer los cambios experimentados en los grupos de la comunidad científica de auto- res que trabajan en instituciones españolas y que publican artículos en las revistas científicas incluidas en la categoría "Psychology Educational" en la Web of Science durante el período 2004 hasta el 2013 y su pertenencia y perma- nencia en los diferentes grupos de investigación. Se realizó un estudio com- parativo de los grupos y su composición a lo largo de los quinquenios 2004- 2008 y 2009-2013. Los resultados indicaron que existe un incremento en el número de investigadores y de los grupos de investigación en el ámbito de la psicología educativa, que v…
Marginal contribution, reciprocity and equity in segregated groups: Bounded rationality and selforganization in social networks
2007
We study the formation of social networks that are based on local interaction and simple rule following. Agents evaluate the profitability of link formation on the basis of the Myerson-Shapley principle that payoffs come from the marginal contribution they make to coalitions. The NP-hard problem associated with the Myerson-Shapley value is replaced by a boundedly rational 'spatially' myopic process. Agents consider payoffs from direct links with their neighbours (level 1), which can include indirect payoffs from neighbours' neighbours (level 2) and up to M-levels that are far from global. Agents dynamically break away from the neighbour to whom they make the least marginal contribution. Com…
Knowledge Extraction from Biological and Social Graphs
2022
Many problems from the real life deal with the generation of enormous, varied, dynamic, and interconnected datasets coming from different and heterogeneous sources. This PhD Thesis focuses on the proposal of novel knowledge extraction techniques from graphs, mainly based on Big Data methodologies. Two application contexts are considered: Biological and Medical data, with the final aim of identifying biomarkers for diagnosis, treatment, prognosis, and prevention of diseases. Social data, for the optimization of advertising campaigns, the comparison of user profiles, and neighborhood analysis.
Analysis of Users Behaviour from a Movie Preferences Perspective
2018
Despite their tremendous popularity, Online Social Networks (OSNs) have several issues related to the privacy of social users. These issues have motivated researchers to develop OSN services that take advantage of the decentralized platforms (such as P2P systems or opportunistic networks). Decentralized Online Social Networks (DOSNs) need specific approaches to manage the decentralization of social data. In particular, data availability is one of the main issues and current proposals exploit properties of the social relationships to manage it. At the best of our knowledge, there are no proposals which exploit similarity between users, expressed with the term homophily. Homophily has been we…
Exploiting community detection to recommend privacy policies in decentralized online social networks
2018
The usage of Online Social Networks (OSNs) has become a daily activity for billions of people that share their contents and personal information with the other users. Regardless of the platform exploited to provide the OSNs’ services, these contents’ sharing could expose the OSNs’ users to a number of privacy risks if proper privacy-preserving mechanisms are not provided. Indeed, users must be able to define its own privacy policies that are exploited by the OSN to regulate access to the shared contents. To reduce such users’ privacy risks, we propose a Privacy Policies Recommended System (PPRS) that assists the users in defining their own privacy policies. Besides suggesting the most appro…
La libertà di espressione in rete fra content moderation dei social network e regolazione dell’Unione Europea
2022
Starting from the premise that digital society and advances in technology determine the need for adaptation, even if only in an interpretative sense, of the legal categories of constitutionalism, the study analyzes the new dimension of the freedom of expression of thought in the "digital environment". Through the examination of the different jurisprudential approaches expressed to protect this freedom in Europe and in the United States, the work also examines the role of social platforms, their power of self-regulation and that of content moderation, which will highlight the need for regulation of the phenomenon that balances the needs of protection of rights and those of technological adva…
La libertà di espressione nell’era dei social network fra content moderation e necessità di una regolazione flessibile
2023
Starting from the premise that digital society and advances in technology determine the need for adaptation, even if only in an interpretative sense, of the legal categories of constitutionalism, the study analyzes the new dimension of the freedom of expression of thought in the “digital environment”. Through the examination of the different jurisprudential approaches expressed to protect this freedom in Europe and in the United States, the work also examines the role of social platforms, their power of self-regulation and that of content moderation, which will highlight the need for regulation of the phenomenon that balances the needs of protection of rights and those of technological adva…