no code implementations • 28 Apr 2022 • Rossano Gaeta, Michele Garetto, Giancarlo Ruffo, Alessandro Flammini
We propose a simple model of an idealized online cultural market in which $N$ items, endowed with a hidden quality metric, are recommended to users by a ranking algorithm possibly biased by the current items' popularity.
no code implementations • 4 Oct 2020 • Dimitar Nikolov, Alessandro Flammini, Filippo Menczer
We analyze the relationship between partisanship, echo chambers, and vulnerability to online misinformation by studying news sharing behavior on Twitter.
Misinformation Social and Information Networks Computers and Society
no code implementations • 11 Jun 2020 • Mohsen Sayyadiharikandeh, Onur Varol, Kai-Cheng Yang, Alessandro Flammini, Filippo Menczer
The ensemble of specialized classifiers (ESC) can better generalize, leading to an average improvement of 56\% in F1 score for unseen accounts across datasets.
no code implementations • 27 Nov 2019 • Filipi Nascimento Silva, Aditya Tandon, Diego Raphael Amancio, Alessandro Flammini, Filippo Menczer, Staša Milojević, Santo Fortunato
The citations process for scientific papers has been studied extensively.
no code implementations • 3 Jan 2019 • Kai-Cheng Yang, Onur Varol, Clayton A. Davis, Emilio Ferrara, Alessandro Flammini, Filippo Menczer
Researchers have responded by developing AI tools to arm the public in the fight against social bots.
Computers and Society
1 code implementation • 24 Aug 2017 • Prashant Shiralkar, Alessandro Flammini, Filippo Menczer, Giovanni Luca Ciampaglia
The volume and velocity of information that gets generated online limits current journalistic practices to fact-check claims at the same rate.
2 code implementations • 24 Jul 2017 • Chengcheng Shao, Giovanni Luca Ciampaglia, Onur Varol, Kaicheng Yang, Alessandro Flammini, Filippo Menczer
Communication, cognitive, social, and computer scientists are engaged in efforts to study the complex causes for the viral diffusion of misinformation online and to develop solutions, while search and social media platforms are beginning to deploy countermeasures.
Social and Information Networks Computers and Society Physics and Society
4 code implementations • 9 Mar 2017 • Onur Varol, Emilio Ferrara, Clayton A. Davis, Filippo Menczer, Alessandro Flammini
Increasing evidence suggests that a growing amount of social media content is generated by autonomous entities known as social bots.
Social and Information Networks
1 code implementation • 20 Oct 2016 • Azadeh Nematzadeh, Giovanni Luca Ciampaglia, Yong-Yeol Ahn, Alessandro Flammini
Our analysis reveals the existence of a transition from a conversational state to a cacophony --- a state of overload with lower user participation, more copy-pasted messages, and less information per message.
Social and Information Networks Human-Computer Interaction Physics and Society
no code implementations • 2 May 2016 • Emilio Ferrara, Wen-Qiang Wang, Onur Varol, Alessandro Flammini, Aram Galstyan
We present a machine learning framework that leverages a mixture of metadata, network, and temporal features to detect extremist users, and predict content adopters and interaction reciprocity in social media.
2 code implementations • 2 Feb 2016 • Clayton A. Davis, Onur Varol, Emilio Ferrara, Alessandro Flammini, Filippo Menczer
While most online social media accounts are controlled by humans, these platforms also host automated agents called social bots or sybil accounts.
Social and Information Networks
no code implementations • 20 Jan 2016 • V. S. Subrahmanian, Amos Azaria, Skylar Durst, Vadim Kagan, Aram Galstyan, Kristina Lerman, Linhong Zhu, Emilio Ferrara, Alessandro Flammini, Filippo Menczer, Andrew Stevens, Alexander Dekhtyar, Shuyang Gao, Tad Hogg, Farshad Kooti, Yan Liu, Onur Varol, Prashant Shiralkar, Vinod Vydiswaran, Qiaozhu Mei, Tim Hwang
A number of organizations ranging from terrorist groups such as ISIS to politicians and nation states reportedly conduct explicit campaigns to influence opinion on social media, posing a risk to democratic processes.
no code implementations • 20 Feb 2015 • Lei Le, Emilio Ferrara, Alessandro Flammini
However, extents and contexts in which such forecasting power can be effectively leveraged are still unverified at least in a systematic way.
no code implementations • 3 Nov 2014 • Mohsen JafariAsbagh, Emilio Ferrara, Onur Varol, Filippo Menczer, Alessandro Flammini
The problem of clustering content in social media has pervasive applications, including the identification of discussion topics, event detection, and content recommendation.
1 code implementation • 19 Jul 2014 • Emilio Ferrara, Onur Varol, Clayton Davis, Filippo Menczer, Alessandro Flammini
The Turing test aimed to recognize the behavior of a human from that of a computer algorithm.
Social and Information Networks Computers and Society Data Analysis, Statistics and Probability Physics and Society
1 code implementation • 3 Feb 2006 • Santo Fortunato, Alessandro Flammini, Filippo Menczer
Network growth is currently explained through mechanisms that rely on node prestige measures, such as degree or fitness.
Disordered Systems and Neural Networks Statistical Mechanics Physics and Society