Manoel Horta Ribeiro

According to our database, Manoel Horta Ribeiro authored at least 64 papers between 2014 and 2025.

Collaborative distances:

• Dijkstra number of three.
• Erdős number of three.

2025

Chameleon Channels: Measuring YouTube Accounts Repurposed for Deception and Profit.

Alejandro Cuevas, Manoel Horta Ribeiro, Nicolas Christin

CoRR, July, 2025

Understanding Community-Level Blocklists in Decentralized Social Media.

Owen Xingjian Zhang, Sohyeon Hwang, Yuhan Liu, Manoel Horta Ribeiro, Andrés Monroy-Hernández

CoRR, June, 2025

Redefining Research Crowdsourcing: Incorporating Human Feedback with LLM-Powered Digital Twins.

Amanda Chan, Catherine Di, Joseph Rupertus, Gary D. Smith, Varun Nagaraj Rao, Manoel Horta Ribeiro, Andrés Monroy-Hernández

CoRR, May, 2025

Prevalence and Prevention of Large Language Model Use in Crowd Work.

Veniamin Veselovsky, Manoel Horta Ribeiro, Philip Cozzolino, Andrew Gordon, David M. Rothschild, Robert West

Commun. ACM, March, 2025

Economics of Sourcing Human Data.

Sebastin Santy, Prasanta Bhattacharya, Manoel Horta Ribeiro, Kelsey Allen, Sewoong Oh

CoRR, February, 2025

Post Guidance for Online Communities.

Manoel Horta Ribeiro, Robert West, Ryan Lewis, Sanjay Kairam

Proc. ACM Hum. Comput. Interact., 2025

Deplatforming Norm-Violating Influencers on Social Media Reduces Overall Online Attention Toward Them.

Manoel Horta Ribeiro, Shagun Jhaver, Jordi Cluet-i-Martinell, Marie Reignier-Tayar, Robert West

Proc. ACM Hum. Comput. Interact., 2025

The Effects of Enterprise Social Media on Communication Networks.

Manoel Horta Ribeiro, Teny Shapiro, Siddharth Suri

Proceedings of the 17th ACM Web Science Conference 2025, 2025

Does Content Moderation Lead Users Away from Fringe Movements? Evidence from a Recovery Community.

Giuseppe Russo, Maciej Styczen, Manoel Horta Ribeiro, Robert West

Proceedings of the Nineteenth International AAAI Conference on Web and Social Media, 2025

Protection from Evil and Good: The Differential Effects of Page Protection on Wikipedia Article Quality.

Thorsten Ruprechter, Manoel Horta Ribeiro, Robert West, Denis Helic

Proceedings of the Nineteenth International AAAI Conference on Web and Social Media, 2025

Human Subjects Research in the Age of Generative AI: Opportunities and Challenges of Applying LLM-Simulated Data to HCI Studies.

Angel Hsing-Chi Hwang, Michael S. Bernstein, S. Shyam Sundar, Renwen Zhang, Manoel Horta Ribeiro, Yingdan Lu, Serina Chang, Tongshuang Wu, Aimei Yang, Dmitri Williams, Joon Sung Park, Katherine Ognyanova, Ziang Xiao, Aaron Shaw, David A. Shamma

Proceedings of the Extended Abstracts of the CHI Conference on Human Factors in Computing Systems, 2025

Redefining Research Crowdsourcing: Incorporating Human Feedback with LLM-Powered Digital Twins: Incorporating Human Feedback with LLM-Powered Digital Twins.

Amanda Chan, Catherine Di, Joseph Rupertus, Gary D. Smith, Varun Nagaraj Rao, Manoel Horta Ribeiro, Andrés Monroy-Hernández

Proceedings of the Extended Abstracts of the CHI Conference on Human Factors in Computing Systems, 2025

2024

Could ChatGPT get an Engineering Degree? Evaluating Higher Education Vulnerability to AI Assistants.

Beatriz Borges, Negar Foroutan, Deniz Bayazit, Anna Sotnikova, Syrielle Montariol, Tanya Nazaretzky, Mohammadreza Banaei, Alireza Sakhaeirad, Philippe Servant, Seyed Parsa Neshaei, Jibril Frej, Angelika Romanou, Gail Weiss, Sepideh Mamooler, Zeming Chen, Simin Fan, Silin Gao, Mete Ismayilzada, Debjit Paul, Alexandre Schöpfer, Andrej Janchevski, Anja Tiede, Clarence Linden, Emanuele Troiani, Francesco Salvi, Freya Behrens, Giacomo Orsi, Giovanni Piccioli, Hadrien Sevel, Louis Coulon, Manuela Pineros-Rodriguez, Marin Bonnassies, Pierre Hellich, Puck van Gerwen, Sankalp Gambhir, Solal Pirelli, Thomas Blanchard, Timothée Callens, Toni Abi Aoun, Yannick Calvino Alonso, Yuri Cho, Alberto Silvio Chiappa, Antonio Sclocchi, Étienne Bruno, Florian Hofhammer, Gabriel Pescia, Geovani Rizk, Leello Dadi, Lucas Stoffl, Manoel Horta Ribeiro, Matthieu Bovel, Yueyang Pan, Aleksandra Radenovic, Alexandre Alahi, Alexander Mathis, Anne-Florence Bitbol, Boi Faltings, Cécile Hébert, Devis Tuia, François Maréchal, George Candea, Giuseppe Carleo, Jean-Cédric Chappelier, Nicolas Flammarion, Jean-Marie Fürbringer, Jean-Philippe Pellet, Karl Aberer, Lenka Zdeborová, Marcel Salathé, Martin Jaggi, Martin Rajman, Mathias Payer, Matthieu Wyart, Michael Gastpar, Michele Ceriotti, Ola Svensson, Olivier Lévêque, Paolo Ienne, Rachid Guerraoui, Robert West, Sanidhya Kashyap, Valerio Piazza, Viesturs Simanis, Viktor Kuncak, Volkan Cevher, Philippe Schwaller, Sacha Friedli, Patrick Jermann, Tanja Käser, Antoine Bosselut

CoRR, 2024

The AI Review Lottery: Widespread AI-Assisted Peer Reviews Boost Paper Scores and Acceptance Rates.

Giuseppe Russo Latona, Manoel Horta Ribeiro, Tim R. Davidson, Veniamin Veselovsky, Robert West

CoRR, 2024

On the Conversational Persuasiveness of Large Language Models: A Randomized Controlled Trial.

Francesco Salvi, Manoel Horta Ribeiro, Riccardo Gallotti, Robert West

CoRR, 2024

Stranger Danger! Cross-Community Interactions with Fringe Users Increase the Growth of Fringe Communities on Reddit.

Giuseppe Russo Latona, Manoel Horta Ribeiro, Robert West

Proceedings of the Eighteenth International AAAI Conference on Web and Social Media, 2024

Tube2Vec: Social and Semantic Embeddings of YouTube Channels.

Léopaul Boesinger, Manoel Horta Ribeiro, Veniamin Veselovsky, Robert West

Proceedings of the Eighteenth International AAAI Conference on Web and Social Media, 2024

Can Language Models Recognize Convincing Arguments?

Paula Rescala, Manoel Horta Ribeiro, Tiancheng Hu, Robert West

Proceedings of the Findings of the Association for Computational Linguistics: EMNLP 2024, 2024

Community-Driven Models for Research on Social Platforms.

Sanjay Kairam, Michael S. Bernstein, Amy S. Bruckman, Stevie Chancellor, Eshwar Chandrasekharan, Munmun De Choudhury, Casey Fiesler, Hanlin Li, Nicholas Proferes, Manoel Horta Ribeiro, C. Estelle Smith, Galen Cassebeer Weld

Proceedings of the Companion Publication of the 2024 Conference on Computer-Supported Cooperative Work and Social Computing, 2024

2023

Causally estimating the effect of YouTube's recommender system using counterfactual bots.

Homa Hosseinmardi, Amir Ghasemian, Miguel Rivera-Lanas, Manoel Horta Ribeiro, Robert West, Duncan J. Watts

CoRR, 2023

ACTI at EVALITA 2023: Overview of the Conspiracy Theory Identification Task.

Giuseppe Russo Latona, Niklas Stoehr, Manoel Horta Ribeiro

CoRR, 2023

Artificial Artificial Artificial Intelligence: Crowd Workers Widely Use Large Language Models for Text Production Tasks.

Veniamin Veselovsky, Manoel Horta Ribeiro, Robert West

CoRR, 2023

Generating Faithful Synthetic Data with Large Language Models: A Case Study in Computational Social Science.

Veniamin Veselovsky, Manoel Horta Ribeiro, Akhil Arora, Martin Josifoski, Ashton Anderson, Robert West

CoRR, 2023

Automated Content Moderation Increases Adherence to Community Guidelines.

Manoel Horta Ribeiro, Justin Cheng, Robert West

Proceedings of the ACM Web Conference 2023, 2023

Understanding Online Migration Decisions Following the Banning of Radical Communities.

Giuseppe Russo Latona, Manoel Horta Ribeiro, Giona Casiraghi, Luca Verginer

Proceedings of the 15th ACM Web Science Conference 2023, 2023

Spillover of Antisocial Behavior from Fringe Platforms: The Unintended Consequences of Community Banning.

Giuseppe Russo Latona, Luca Verginer, Manoel Horta Ribeiro, Giona Casiraghi

Proceedings of the Seventeenth International AAAI Conference on Web and Social Media, 2023

The Amplification Paradox in Recommender Systems.

Manoel Horta Ribeiro, Veniamin Veselovsky, Robert West

Proceedings of the Seventeenth International AAAI Conference on Web and Social Media, 2023

Quotatives Indicate Decline in Objectivity in U.S. Political News.

Tiancheng Hu, Manoel Horta Ribeiro, Robert West, Andreas Spitz

Proceedings of the Seventeenth International AAAI Conference on Web and Social Media, 2023

ACTI at EVALITA 2023: Automatic Conspiracy Theory Identification Task Overview (short paper).

Giuseppe Russo Latona, Niklas Stoehr, Manoel Horta Ribeiro

Proceedings of the Eighth Evaluation Campaign of Natural Language Processing and Speech Tools for Italian. Final Workshop (EVALITA 2023), 2023

2022

Characterizing Alternative Monetization Strategies on YouTube.

Yiqing Hua, Manoel Horta Ribeiro, Thomas Ristenpart, Robert West, Mor Naaman

Proc. ACM Hum. Comput. Interact., 2022

Analyzing the "Sleeping Giants" Activism Model in Brazil.

Bárbara Gomes Ribeiro, Manoel Horta Ribeiro, Virgílio A. F. Almeida, Wagner Meira Jr.

Proceedings of the WebSci '22: 14th ACM Web Science Conference 2022, Barcelona, Spain, June 26, 2022

Can online attention signals help fact-checkers to fact-check?

Manoel Horta Ribeiro, Savvas Zannettou, Oana Goga, Fabrício Benevenuto, Robert West

Proceedings of the Workshop Proceedings of the 16th International AAAI Conference on Web and Social Media, 2022

Post Approvals in Online Communities.

Manoel Horta Ribeiro, Justin Cheng, Robert West

Proceedings of the Sixteenth International AAAI Conference on Web and Social Media, 2022

2021

Sami-Trop: 12-lead ECG traces with age and mortality annotations.

Antônio Luiz P. Ribeiro, Antônio H. Ribeiro, Gabriela M. M. Paixão, Emilly M. Lima, Manoel Horta Ribeiro, Marcelo M. Pinto Filho, Paulo R. Gomes, Derick M. de Oliveira, Wagner Meira Jr., Thomas B. Schön, Ester C. Sabino

Dataset, June, 2021

CODE-15%: a large scale annotated dataset of 12-lead ECGs.

Antônio H. Ribeiro, Gabriela M. M. Paixão, Emilly M. Lima, Manoel Horta Ribeiro, Marcelo M. Pinto Filho, Paulo R. Gomes, Derick M. de Oliveira, Wagner Meira Jr., Thomas B. Schön, Antônio Luiz P. Ribeiro

Dataset, June, 2021

Do Platform Migrations Compromise Content Moderation? Evidence from r/The_Donald and r/Incels.

Manoel Horta Ribeiro, Shagun Jhaver, Savvas Zannettou, Jeremy Blackburn, Gianluca Stringhini, Emiliano De Cristofaro, Robert West

Proc. ACM Hum. Comput. Interact., 2021

What do fact checkers fact-check when?

Manoel Horta Ribeiro, Savvas Zannettou, Oana Goga, Fabrício Benevenuto, Robert West

CoRR, 2021

Follow the Money: Analyzing @slpng_giants_pt's Strategy to Combat Misinformation.

Bárbara Gomes Ribeiro, Manoel Horta Ribeiro, Virgílio A. F. Almeida, Wagner Meira Jr.

CoRR, 2021

Volunteer contributions to Wikipedia increased during COVID-19 mobility restrictions.

Thorsten Ruprechter, Manoel Horta Ribeiro, Tiago Santos, Florian Lemmerich, Markus Strohmaier, Robert West, Denis Helic

CoRR, 2021

Are Anti-Feminist Communities Gateways to the Far Right? Evidence from Reddit and YouTube.

Robin Mamié, Manoel Horta Ribeiro, Robert West

Proceedings of the WebSci '21: 13th ACM Web Science Conference 2021, 2021

Sudden Attention Shifts on Wikipedia During the COVID-19 Crisis.

Manoel Horta Ribeiro, Kristina Gligoric, Maxime Peyrard, Florian Lemmerich, Markus Strohmaier, Robert West

Proceedings of the Fifteenth International AAAI Conference on Web and Social Media, 2021

The Evolution of the Manosphere across the Web.

Manoel Horta Ribeiro, Jeremy Blackburn, Barry Bradlyn, Emiliano De Cristofaro, Gianluca Stringhini, Summer Long, Stephanie Greenberg, Savvas Zannettou

Proceedings of the Fifteenth International AAAI Conference on Web and Social Media, 2021

YouNiverse: Large-Scale Channel and Video Metadata from English-Speaking YouTube.

Manoel Horta Ribeiro, Robert West

Proceedings of the Fifteenth International AAAI Conference on Web and Social Media, 2021

2020

CODE-test: An annotated 12-lead ECG dataset.

Antônio H. Ribeiro, Manoel Horta Ribeiro, Gabriela M. M. Paixão, Derick M. de Oliveira, Paulo R. Gomes, Jéssica A. Canazart, Milton P. S. Ferreira, Carl R. Andersson, Peter W. Macfarlane, Wagner Meira Jr., Thomas B. Schön, Antônio Luiz P. Ribeiro

Dataset, January, 2020

Annotated 12-lead ECG dataset.

Antônio H. Ribeiro, Manoel Horta Ribeiro, Gabriela M. M. Paixão, Derick M. de Oliveira, Paulo R. Gomes, Jéssica A. Canazart, Milton P. S. Ferreira, Carl R. Andersson, Peter W. Macfarlane, Wagner Meira Jr., Thomas B. Schön, Antônio Luiz P. Ribeiro

Dataset, January, 2020

Annotated 12-lead ECG dataset.

Antônio H. Ribeiro, Manoel Horta Ribeiro, Gabriela M. M. Paixão, Derick M. de Oliveira, Paulo R. Gomes, Jéssica A. Canazart, Milton P. S. Ferreira, Carl R. Andersson, Peter W. Macfarlane, Wagner Meira Jr., Thomas B. Schön, Antônio Luiz P. Ribeiro

Dataset, January, 2020

Annotated 12 lead ECG dataset.

Antônio H. Ribeiro, Manoel Horta Ribeiro, Gabriela M. M. Paixão, Derick M. de Oliveira, Paulo R. Gomes, Jéssica A. Canazart, Milton P. S. Ferreira, Carl R. Andersson, Peter W. Macfarlane, Wagner Meira Jr., Thomas B. Schön, Antônio Luiz P. Ribeiro

Dataset, January, 2020

Does Platform Migration Compromise Content Moderation? Evidence from r/The_Donald and r/Incels.

Manoel Horta Ribeiro, Shagun Jhaver, Savvas Zannettou, Jeremy Blackburn, Emiliano De Cristofaro, Gianluca Stringhini, Robert West

CoRR, 2020

Experts and authorities receive disproportionate attention on Twitter during the COVID-19 crisis.

Kristina Gligoric, Manoel Horta Ribeiro, Martin Müller, Olesia Altunina, Maxime Peyrard, Marcel Salathé, Giovanni Colavizza, Robert West

CoRR, 2020

Sudden Attention Shifts on Wikipedia Following COVID-19 Mobility Restrictions.

Manoel Horta Ribeiro, Kristina Gligoric, Maxime Peyrard, Florian Lemmerich, Markus Strohmaier, Robert West

CoRR, 2020

From Pick-Up Artists to Incels: A Data-Driven Sketch of the Manosphere.

Manoel Horta Ribeiro, Jeremy Blackburn, Barry Bradlyn, Emiliano De Cristofaro, Gianluca Stringhini, Summer Long, Stephanie Greenberg, Savvas Zannettou

CoRR, 2020

Analyzing YouTube Videos Shared on Whatsapp in the Early COVID-19 Crisis.

Marisa Vasconcelos, Erica Pereira, Samuel S. Guimarães, Manoel Horta Ribeiro, Philipe F. Melo, Fabrício Benevenuto

Proceedings of the WebMedia '20: Brazillian Symposium on Multimedia and the Web, São Luís, Brazil, November 30, 2020

Auditing radicalization pathways on YouTube.

Manoel Horta Ribeiro, Raphael Ottoni, Robert West, Virgílio A. F. Almeida, Wagner Meira Jr.

Proceedings of the FAT* '20: Conference on Fairness, 2020

Automatic 12-lead ECG Classification Using a Convolutional Network Ensemble.

Antônio H. Ribeiro, Daniel Gedon, Daniel Martins Teixeira, Manoel Horta Ribeiro, Antônio Luiz Pinho Ribeiro, Thomas B. Schön, Wagner Meira Jr.

Proceedings of the Computing in Cardiology, 2020

2019

Automatic Diagnosis of the Short-Duration 12-Lead ECG using a Deep Neural Network: the CODE Study.

Antônio H. Ribeiro, Manoel Horta Ribeiro, Gabriela M. M. Paixão, Derick M. de Oliveira, Paulo R. Gomes, Jéssica A. Canazart, Milton P. S. Ferreira, Carl R. Andersson, Peter W. Macfarlane, Wagner Meira Jr., Thomas B. Schön, Antônio Luiz P. Ribeiro

CoRR, 2019

Message Distortion in Information Cascades.

Manoel Horta Ribeiro, Kristina Gligoric, Robert West

Proceedings of the World Wide Web Conference, 2019

2018

Scalable and Efficient Data Analytics and Mining with Lemonade.

Walter Santos, Gustavo de P. Avelar, Manoel Horta Ribeiro, Dorgival O. Guedes, Wagner Meira Jr.

Proc. VLDB Endow., 2018

Automatic Diagnosis of Short-Duration 12-Lead ECG using a Deep Convolutional Network.

Antônio H. Ribeiro, Manoel Horta Ribeiro, Gabriela Paixão, Derick M. de Oliveira, Paulo R. Gomes, Jéssica A. Canazart, Milton P. S. Ferreira, Wagner Meira Jr., Thomas B. Schön, Antônio Luiz P. Ribeiro

CoRR, 2018

"Like Sheep Among Wolves": Characterizing Hateful Users on Twitter.

Manoel Horta Ribeiro, Pedro H. Calais, Yuri A. Santos, Virgílio A. F. Almeida, Wagner Meira Jr.

CoRR, 2018

Characterizing and Detecting Hateful Users on Twitter.

Manoel Horta Ribeiro, Pedro H. Calais, Yuri A. Santos, Virgílio A. F. Almeida, Wagner Meira Jr.

Proceedings of the Twelfth International Conference on Web and Social Media, 2018

2017

"Everything I Disagree With is #FakeNews": Correlating Political Polarization and Spread of Misinformation.

Manoel Horta Ribeiro, Pedro H. Calais, Virgílio A. F. Almeida, Wagner Meira Jr.

CoRR, 2017

Portinari: A Data Exploration Tool to Personalize Cervical Cancer Screening.

Sagar Sen, Manoel Horta Ribeiro, Raquel Cardoso de Melo Minardi, Wagner Meira Jr., Mari Nygård

Proceedings of the 39th IEEE/ACM International Conference on Software Engineering: Software Engineering in Society Track, 2017

2016

Complexity-Aware Assignment of Latent Values in Discriminative Models for Accurate Gesture Recognition.

Manoel Horta Ribeiro, Bruno Teixeira, Antônio Otávio Fernandes, Wagner Meira Jr., Erickson R. Nascimento

Proceedings of the 29th SIBGRAPI Conference on Graphics, Patterns and Images, 2016

2014

Modeling and Analyzing the Video Game Live-Streaming Community.

Gustavo Nascimento, Manoel Horta Ribeiro, Loïc Cerf, Natalia Cesario, Mehdi Kaytoue, Chedy Raïssi, Thiago Vasconcelos, Wagner Meira Jr.

Proceedings of the 9th Latin American Web Congress, 2014