no code implementations • 23 Jan 2024 • Guilherme H. Resende, Luiz F. Nery, Fabrício Benevenuto, Savvas Zannettou, Flavio Figueiredo
One explanation for this bias is that AI models are trained on limited datasets, and using such a term in training data is more likely to appear in a toxic utterance.
1 code implementation • 10 Aug 2023 • Xinlei He, Savvas Zannettou, Yun Shen, Yang Zhang
We find that prompt learning achieves around 10\% improvement in the toxicity classification task compared to the baselines, while for the toxic span detection task we find better performance to the best baseline (0. 643 vs. 0. 640 in terms of $F_1$-score).
1 code implementation • 23 May 2023 • Yiting Qu, Xinyue Shen, Xinlei He, Michael Backes, Savvas Zannettou, Yang Zhang
Our evaluation result shows that 24% of the generated images using DreamBooth are hateful meme variants that present the features of the original hateful meme and the target individual/community; these generated images are comparable to hateful meme variants collected from the real world.
2 code implementations • 13 Dec 2022 • Yiting Qu, Xinlei He, Shannon Pierson, Michael Backes, Yang Zhang, Savvas Zannettou
The dissemination of hateful memes online has adverse effects on social media platforms and the real world.
no code implementations • 7 Sep 2022 • Wai Man Si, Michael Backes, Jeremy Blackburn, Emiliano De Cristofaro, Gianluca Stringhini, Savvas Zannettou, Yang Zhang
We show that publicly available chatbots are prone to providing toxic responses when fed toxic queries.
no code implementations • 17 Feb 2022 • Catherine Jennifer, Fatemeh Tahmasbi, Jeremy Blackburn, Gianluca Stringhini, Savvas Zannettou, Emiliano De Cristofaro
Internet memes have become a dominant method of communication; at the same time, however, they are also increasingly being used to advocate extremism and foster derogatory beliefs.
no code implementations • 21 Jan 2021 • Max Aliapoulios, Antonis Papasavva, Cameron Ballard, Emiliano De Cristofaro, Gianluca Stringhini, Savvas Zannettou, Jeremy Blackburn
By interpreting cryptic "drops" of information from an anonymous insider calling themself Q, adherents of the conspiracy theory believe that Donald Trump is leading them in an active fight against this cabal.
Computers and Society Social and Information Networks
1 code implementation • 18 Jan 2021 • Savvas Zannettou
Soft moderation interventions refer to warning labels attached to potentially questionable or harmful content to inform other users about the content and its nature while the content remains accessible, hence alleviating concerns related to censorship and free speech.
Social and Information Networks Computers and Society
no code implementations • 11 Jan 2021 • Max Aliapoulios, Emmi Bevensee, Jeremy Blackburn, Emiliano De Cristofaro, Gianluca Stringhini, Savvas Zannettou
Parler is as an "alternative" social network promoting itself as a service that allows to "speak freely and express yourself openly, without fear of being deplatformed for your views."
Social and Information Networks Computers and Society Physics and Society
no code implementations • 8 Apr 2020 • Fatemeh Tahmasbi, Leonard Schild, Chen Ling, Jeremy Blackburn, Gianluca Stringhini, Yang Zhang, Savvas Zannettou
Finally, we find interesting differences in the context in which words related to Chinese people are used on the Web before and after the COVID-19 outbreak: on Twitter we observe a shift towards blaming China for the situation, while on /pol/ we find a shift towards using more (and new) Sinophobic slurs.
Word Embeddings Social and Information Networks Computers and Society
1 code implementation • 23 Jan 2020 • Jason Baumgartner, Savvas Zannettou, Brian Keegan, Megan Squire, Jeremy Blackburn
Pushshift is a social media data collection, analysis, and archiving platform that since 2015 has collected Reddit data and made it available to researchers.
Social and Information Networks Computers and Society
no code implementations • 22 Jan 2020 • Kostantinos Papadamou, Savvas Zannettou, Jeremy Blackburn, Emiliano De Cristofaro, Gianluca Stringhini, Michael Sirivianos
YouTube is by far the largest host of user-generated video content worldwide.
Computers and Society
no code implementations • 21 Jan 2020 • Manoel Horta Ribeiro, Jeremy Blackburn, Barry Bradlyn, Emiliano De Cristofaro, Gianluca Stringhini, Summer Long, Stephanie Greenberg, Savvas Zannettou
In this paper, we present a large-scale characterization of the Manosphere, a conglomerate of Web-based misogynist movements roughly focused on "men's issues," which has seen significant growth over the past years.
Computers and Society
no code implementations • 5 Sep 2018 • Joel Finkelstein, Savvas Zannettou, Barry Bradlyn, Jeremy Blackburn
Our open and scientifically grounded methods serve as a framework to augment current qualitative efforts by anti-hate groups, providing new insights into the growth and spread of antisemitism online.
Computers and Society Social and Information Networks
2 code implementations • 31 May 2018 • Savvas Zannettou, Tristan Caulfield, Jeremy Blackburn, Emiliano De Cristofaro, Michael Sirivianos, Gianluca Stringhini, Guillermo Suarez-Tangil
In this paper, we detect and measure the propagation of memes across multiple Web communities, using a processing pipeline based on perceptual hashing and clustering techniques, and a dataset of 160M images from 2. 6B posts gathered from Twitter, Reddit, 4chan's Politically Incorrect board (/pol/), and Gab, over the course of 13 months.
Social and Information Networks Computers and Society
no code implementations • 10 Apr 2018 • Savvas Zannettou, Michael Sirivianos, Jeremy Blackburn, Nicolas Kourtellis
In this work, we pay particular attention to political false information as: 1) it can have dire consequences to the community (e. g., when election results are mutated) and 2) previous work show that this type of false information propagates faster and further when compared to other types of false information.
Social and Information Networks Computers and Society
no code implementations • 31 Jan 2018 • Savvas Zannettou, Jeremy Blackburn, Emiliano De Cristofaro, Michael Sirivianos, Gianluca Stringhini
Web archiving services play an increasingly important role in today's information ecosystem, by ensuring the continuing availability of information, or by deliberately caching content that might get deleted or removed.
Computers and Society Digital Libraries Social and Information Networks
1 code implementation • 30 Nov 2015 • Savvas Zannettou, Michael Sirivianos, Fragkiskos Papadopoulos
Usually, MPTCP is combined with flow-based Equal-Cost Multi-Path Routing (ECMP), which uses random hashing to split the MPTCP subflows over different paths.
Networking and Internet Architecture C.2.1