Search results for " Social Network"
showing 10 items of 122 documents
Facebook groups as citizen science tools for plant species monitoring
2021
I social network sono canali di comunicazione utilizzati per condividere enormi quantità di dati, che possono essere utilizzati per la ricerca scientifica, anche nel campo della biodiversità. Per sapere quanto i dati ricavati dai social network possono integrare quelli raccolti per scopi scientifici, è necessario individuarne i bias. Utilizzando i dati estratti da un gruppo Facebook specializzato nella flora vascolare siciliana, abbiamo analizzato quali sono i caratteri che aumentano la probabilità che una pianta spontanea venga fotografata e postata su un social network. A tal fine, abbiamo confrontato frequenze e attributi delle specie fotografate dai membri del gruppo Facebook con quelli…
Robust link prediction in criminal networks: A case study of the Sicilian Mafia
2020
Abstract Link prediction exercises may prove particularly challenging with noisy and incomplete networks, such as criminal networks. Also, the link prediction effectiveness may vary across different relations within a social group. We address these issues by assessing the performance of different link prediction algorithms on a mafia organization. The analysis relies on an original dataset manually extracted from the judicial documents of operation “Montagna”, conducted by the Italian law enforcement agencies against individuals affiliated with the Sicilian Mafia. To run our analysis, we extracted two networks: one including meetings and one recording telephone calls among suspects, respect…
Management von Kundenbeziehungen durch Brand Communities
2010
Das Marketing wurde in den letzten Jahrzehnten durch die Betrachtung von dyadischen Beziehungen zwischen Anbietern und Nachfragern dominiert (Bruhn/Georgi 2006). Dabei verstand man Transaktionen zunachst als diskrete (voneinander unabhangige) Ereignisse, spater auch als relationale Phanomene (Bruhn 2002a; 2002b). Die Marketingtheorie und -praxis vernachlassigte (mit wenigen Ausnahmen) jedoch, Interaktionen zwischen Konsumenten zu analysieren. Gerade Begegnungen zwischen Individuen beeinflussen jedoch deren Wahrnehmung, Beurteilung und Akzeptanz von Produkten und Marken (Bearden/Etzel 1982). Die isolierte Betrachtung des Konsumentenverhaltens als Entscheidung Einzelner ist daher um Einflusse…
The Use of Social Media in Children and Adolescents: Scoping Review on the Potential Risks.
2022
In recent years, social media has become part of our lives, even among children. From the beginning of COVID-19 pandemic period, media device and Internet access rapidly increased. Adolescents connected Internet alone, consulting social media, mostly Instagram, TikTok, and YouTube. During “lockdown”, the Internet usage allowed communication with peers and the continuity activities such as school teaching. However, we have to keep in mind that media usage may be related to some adverse consequences especially in the most vulnerable people, such as the young. Aim of the review is to focus on risks correlated to social media use by children and adolescents, identifying spies of ris…
Italian Amateur Pop-Rock Musicians on Facebook: Mixed Methods and New Findings in Music Making Research
2017
This chapter investigates how and why amateur musicians use social networking sites, employing a mixed-methods approach. Attention is focused on four big Italian Facebook communities of pop-rock musicians: drums, bass, guitar, and keyboard players (overall, 2,101 active users), analyzing the relational and textual data extracted from the web. The chapter analyzes the network structures emerging from the interactions among the users. It also identifies and maps the main areas of discussion (sound shaping, studio recording, marketplace, musical references, computer production, and relations) and the latent semantic dimension characterizing Facebook users’ activities, through social network an…
Entrepreneurship on Social Networking Sites: The Roles of Attitude and Perceived Usefulness
2023
Background: Social media platforms are a significant growth opportunity for enterprises, especially for microenterprises, due to the possibility of establishing direct contact with their customers. We investigate the psychological reasons that drive entrepreneurs towards the use of social networking sites (SNSs) for their business, following two important social psychology theories: the theory of planned behaviour and the technology acceptance model. We also tested for two personality traits: openness to experience and dominance. Methods: Data were acquired by examining 325 microentrepreneurs who decided to use either SNSs or traditional sales methods for their businesses. Results and concl…
Utenti precoci di Pokémon Go - un report pilota sui correlati di personalità
2016
Pokémon Go è una applicazione ludica gratuita per smartphone basata su tecnologie di relatà aumentata e di geolocazione lanciata sul mercato a fine di luglio del 2016 dalla società americana Niantic (Wilson, 2016).
A branch-and-price framework for decomposing graphs into relaxed cliques
2021
We study the family of problems of partitioning and covering a graph into/with a minimum number of relaxed cliques. Relaxed cliques are subsets of vertices of a graph for which a clique-defining property—for example, the degree of the vertices, the distance between the vertices, the density of the edges, or the connectivity between the vertices—is relaxed. These graph partitioning and covering problems have important applications in many areas such as social network analysis, biology, and disease-spread prevention. We propose a unified framework based on branch-and-price techniques to compute optimal decompositions. For this purpose, new, effective pricing algorithms are developed, and new…
“The war is over”. Militarizing the language and framing the Nation in post-Brexit discourse
2020
This chapter analyzes the militarization of political language in digital contexts in the post-Brexit discourse, and how such militarization, which is often constitutive of hate speech, contributes to framing an “exclusive” concept of the nation whose meaning is reproduced and circulated (as well as challenged) in society. It will address the role of emotions and hate in language in fueling and aggregating online communities around a key political issue, i.e. the Brexit negotiations, and a core cultural and social concept, i.e. the nation. The militarization of language, which is based on certain discursive structures, e.g. war metaphors (Lakoff and Johnson 1980, Musolff 2020), is one of th…
CORPORATE VENTURE CAPITAL SYNDICATION STRATEGIES: A DYNAMIC NETWORK PERSPECTIVE
2018
Corporate Venture Capital (CVC) syndication is embraced by over 80% of corporates which co-investing the same startups with other corporates create a CVC syndication network. In this paper, we aim at exploring the evolutionary dynamics of the CVC syndication network. Specifically, we address this topic adopting two different perspectives. First, we investigate the architectural evolution of the CVC syndication network examining five dimensions that characterize the evolution of the network structure (i.e. degree distribution, connectivity, clustering, density and degree assortativity). In addition, we study how three network strategies (i.e. prominence, entrepreneurial and relational) evolv…