Program schedule is tentative.

All times are in Central European Summer Time (CEST) or GMT+2 timezones (UTC+2)

Workshops, Tutorials and Brave Conversations Day

Sunday 26th

Morning session
10 to 14hs
UTC: 08-12hs
Assessing The Ethical Implications Of Artificial Intelligence In Policing
Coornet: detecting problematic online coordinate link-sharing behavior
Lunch break
Afternoon session
15 to 19hs
UTC: 13-17hs
Documenting Web Data for Social Research
(This workshop will start 14.30)
Special event
Brave conversations
General Collective Intelligence and Web Science

Conference general overview

Monday 27thTuesday 28thWednesday 29th
UTC: 06:30
UTC: 07:00
Conference opening/welcome and awards announcements!
Zoom link
UTC: 07:30
SESSION 1: Methods and Algorithms
Q&A Link (
Zoom link
SESSION 4: Bias and Propaganda
Q&A Link (
Zoom Link
SESSION 7: Harmful Content Detection
Q&A Link (
Zoom Link
UTC: 08:00
UTC: 08:30
UTC: 09:00
UTC: 09:30
SESSION 2: Crowds and Social Movements
Q&A Link (
Zoom link
SESSION 5: Politics
Q&A Link (
Zoom Link
SESSION 8: Hypertext conference papers
Q&A Link (
Zoom Link
UTC: 10:00
UTC: 10:30
UTC: 11:00
Lunch break
UTC: 11:30
UTC: 12:00
UTC: 12:30
KEYNOTE “Research at the Service of Free Knowledge”
Leila Zia – Wikimedia Foundation
Q&A Link (
Zoom link
PANEL: Democracy and disinformation
Moderator: Carlos Castillo
Ruth Rodriguez-Martinez
Frederic Guerrero Sole
Emanuele Cozzo

Q&A Link (
Zoom Link
KEYNOTE : Inbodied Interaction: principles for hypertext and web scientists to consider how their work can help #makeNormalBetter for all, at scale.
m.c. schraefel – University of Southampton
Q&A Link (
Zoom Link
UTC: 13:00
UTC: 13:30
Break[Small break from 15:30 to 15:45]
Keynote by the winners of the new WebSci test of time award
Q&A Link (
Zoom Link
UTC: 14:00
SESSION 3: Platforms and Communities
Q&A Link (
Zoom link
UTC: 14:30
SESSION 6: Health
Q&A Link (
Zoom Link
Handover from WebSci to Hypertext (including SIGWEB townhall)
Zoom Link
UTC: 15:00
UTC: 15:30
Poster Sessions
UTC: 16:00
UTC: 16:30
UTC: 17:00
UTC: 17:30
Dinner at YAYA Poblenou
Registration required until June 26th

Monday 27th

SESSION 1: Methods and Algorithms

09:30 to 11:00 hs

Beatrice Perez, Sara Machado, Jerone Andrews and Nicolas KourtellisI call BS: Fraud Detection in Crowdfunding Campaigns
Lynnette Ng and Kathleen CarleyOnline Coordination: Methods and Comparative Case Studies of Coordinated Groups across Four Events in the United States
Amit Kumar and Marc SpaniolThere is a fine Line between Personalization and Surveillance: Semantic User Interest Tracing via Entity-level Analytics
Florian Plötzky and Wolf-Tilo BalkeIt’s the Same Old Story! Enriching Event-Centric Knowledge Graphs by Narrative Aspects
Matthias Götze, Srdjan Matic, Costas Iordanou, Georgios Smaragdakis and Nikolaos LaoutarisMeasuring Web Cookies in Governmental Websites
Samujjwal Ghosh, Subhadeep Maji and Maunendra Sankar DesarkarGNoM: Graph Neural Network Enhanced Language Models for Disaster Related Multilingual Text Classification

SESSION 2: Crowds and Social Movements

11:30 to 13:00 hs

Pradeep Kumar Murukannaiah, Nirav Ajmeri and Munindar P. SinghEnhancing Creativity as Innovation via Asynchronous Crowdwork
Marisa Vasconcelos, Priscila Rocha, Julio Nogima and Rogerio PaulaCharacterizing the Social Ties between Black and Tech communities on Twitter
Barbara Gomes Ribeiro, Manoel Horta Ribeiro, Virgilio Almeida and Wagner Meira Jr.Analyzing the “Sleeping Giants” Activism Model in Brazil
Shaoyang Fan, Pınar Barlas, Evgenia Christoforou, Jahna Otterbacher, Shazia Sadiq and Gianluca DemartiniSocio-Economic Diversity in Human Annotations
Cristina Menghini, Justin Uhr, Shahrzad Haddadan, Ashley Champagne, Bjorn Sandstede and Sohini RamachandranThe Drift of #MyBodyMyChoice Discourse on Twitter
Yu Yamashita, Hiroyoshi Ito, Kei Wakabayashi, Masaki Kobayashi and Atsuyuki MorishimaHAEM: Obtaining Higher-Quality Classification Task Results with AI workers

Keynote: Research at the Service of Free Knowledge

Leila Zia – Wikimedia Foundation

14:30 to 15:30 hs

Abstract: With roughly 15 billion monthly pageviews, 10 million
monthly edits, and more than 56 million articles across 300+
languages, Wikipedia has become a canonical part of the Free Knowledge ecosystem: enabling people to have access to knowledge and empowering them to participate in the discourse of gathering and sharing the sum of all human knowledge. By 2030, the Wikimedia projects, which include Wikipedia, aspire to break down the social, political, and technical
barriers preventing people from accessing and contributing to free
knowledge. In this presentation, I will talk about research in this
direction and will share some of our success stories, as well as a
few of the biggest challenges we face today. I close by sharing some
of the open research questions and directions as well as resources
available to engage with research on the Wikimedia projects.

SESSION 3: Platforms and Communities

16:00 to 17:30 hs

Haewoon KwakYou Have Earned a Trophy: Characterize In-Game Achievements and Their Completions
Sara De Candia, Gianmarco De Francisci Morales, Corrado Monti and Francesco BonchiSocial Norms on Reddit: A Demographic Analysis
Radin Hamidi Rad, Ebrahim Bagheri, Mehdi Kargar, Divesh Srivastava and Jaroslaw SzlichtaSubgraph Representation Learning for Team Mining
Margherita Gambini, Tiziano Fagni, Fabrizio Falchi and Maurizio TesconiOn pushing DeepFake Tweet Detection capabilities to the limits
Chen Ling, Jeremy Blackburn, Emiliano De Cristofaro and Gianluca StringhiniSlapping Cats, Bopping Heads, and Oreo Shakes: Understanding Indicators of Virality in TikTok Short Videos
Cheick Tidiane Ba, Andrea Michienzi, Barbara Guidi, Matteo Zignani, Laura Ricci and Sabrina GaitoFork-based user migration in Blockchain Online Social Media
Carolina Coimbra Vieira, Diego Alburez-Gutierrez, Marília R. Nepomuceno and Tom TheileDesaparecidxs: characterizing the population of missing children using Twitter

Tuesday 28th

SESSION 4: Bias and Propaganda

09:30 to 11:00 hs

Kristina Hristakieva, Stefano Cresci, Giovanni Da San Martino, Mauro Conti and Preslav NakovThe Spread of Propaganda by Coordinated Communities on Social Media
Soon-Gyo Jung, Joni Salminen and Bernard JansenThe Effect of Hiding the Count of Dislikes on the Use of the YouTube Like and Dislike Features
Keith Harrigian and Mark DredzeThe Problem of Semantic Shift in Longitudinal Monitoring of Social Media
Fabian Haak and Philipp SchaerAuditing Search Query Suggestion Bias Through Recursive Algorithm Interrogation
Antonio Ferrara, Lisette Espin-Noboa, Fariba Karimi and Claudia WagnerLink recommendations: their impact on network structure and minorities
Saloni Dash, Arshia Arya, Sukhnidh Kaur and Joyojeet PalNarrative Building in Propaganda Networks on Indian Twitter
Anja Klasnja, Negar Arabzadeh, Mahbod Mehrvarz and Ebrahim BagheriOn the Characteristics of Ranking-based Gender Bias Measures

SESSION 5: Politics

11:30 to 13:00 hs

Matthew Childs, Cody Buntain, Milo Trujillo and Benjamin HorneCharacterizing YouTube and BitChute Content and Mobilizers During U.S. Election Fraud Discussions on Twitter
Kareem DarwishNews Consumption in Time of Conflict: 2021 Palestinian-Israel War as an Example
Ashiqur Khudabukhsh, Rupak Sarkar, Mark Kamlet and Tom MitchellFringe News Networks: Dynamics of US News Viewership Following the 2020 Presidential Election
Kumari Neha, Vibhu Agrawal, Vishwesh Kumar, Tushar Mohan, Abhishek Chopra, Arun Balaji Buduru, Rajesh Sharma and Ponnurangam KumaraguruA Tale of Two sides: Study of Protesters and Counter-protesters on #CitizenshipAmendmentAct Campaign on Twitter
Cagri Toraman, Furkan Şahinuç and Eyup Halit YilmazBlackLivesMatter 2020: An Analysis of Deleted and Suspended Users in Twitter
Amber Chin, Carolina Coimbra Vieira and Jisu KimEvaluating Digital Polarization in Multi-Party Systems: Evidence from the German Bundestag
Eduardo Graells-Garrido and Ricardo Baeza-YatesBots don’t Vote, but They Surely Bother!

Panel: Democracy and disinformation

14:30 to 16:00 hs

Emanuele CozzoOnline disinformation and deliberation: social media at the crossroads.
Ruth Rodriguez-MartinezFACCTMedia Research Project: Defeating disinformation.
Frederic Guerrero SoleData-driven far-right populism, social media, and the future of democracy

SESSION 6: Health

16:30 to 18:00 hs

Abraham Sanders, Debjani Ray-Majumder, John Erickson and Kristin BennettShould we tweet this? Generative response modeling for predicting reception of public health messaging on Twitter.
Tamar Mitts, Nilima Pisharody and Jacob ShapiroRemoval of Anti-Vaccine Content Impacts Social Media Discourse
Xinchen Yu, Zhuoli Xie, Afra Mashhadi and Lingzi HongMulti-task Models for Multi-faceted Classification of Pandemic Information on Social Media
Muheng Yan, Yu-Ru Lin and Wen-Ting ChungAre Mutated Misinformation More Contagious? A Case Study of COVID-19 Misinformation on Twitter
Gianluca Nogara, Padinjaredath Suresh Vishnuprasad, Felipe Cardoso, Omran Ayoub, Silvia Giordano and Luca LuceriThe Disinformation Dozen: An Exploratory Analysis of Covid-19 Disinformation Proliferation on Twitter
Jeevith Bopaiah, Kiran Garimella and Ramakanth KavuluruOpinions on Homeopathy for COVID-19 on Twitter
Lydia Manikonda, Rui Fan and Mee Young UmShift of User Attitudes about Anti-Asian Hate on Reddit Before and During COVID-19

Wednesday 29th

SESSION 7: Harmful Content Detection

09:30 to 11:00 hs

Myrsini Gkolemi, Panagiotis Papadopoulos, Evangelos Markatos and Nicolas KourtellisYouTubers Not madeForKids: Detecting Channels Sharing Inappropriate Videos targeting Children
Jiawen Zhu, Roy Ka-Wei Lee and Wen Haw ChongMultimodal Zero-Shot Hateful Meme Detection
Aditi Bagora, Kamal Shrestha, Kaushal Maurya and Maunendra DesarkarHostility Detection in Online Hindi-English code-mixed Conversations
Yida Mu, Pu Niu and Nikolaos AletrasIdentifying and Characterizing Active Citizens who Refute Misinformation in Social Media
Andrea Sipka, Aniko Hannak and Aleksandra UrmanComparing the Language of QAnon-Related Content on Parler, Gab, and Twitter
Mohamed Bahgat, Steve Wilson and Walid MagdyLIWC-UD: Classifying Online Slang Terms into LIWC Categories

SESSION 8: Hypertext conference papers

11:30 to 13:00 hs

Caglar Demir, Julian Lienen and Axel-Cyrille Ngonga NgomoKronecker Decomposition for Knowledge Graph Embeddings
Sayar Ghosh Roy, Anshul Padhi, Risubh Jain, Manish Gupta and Vasudeva VarmaTowards Proactively Forecasting Sentence-Specific Information Popularity within Online News Documents
Fedor Vitiugin and Carlos CastilloCross-Lingual Query-Based Summarization of Crisis-Related Social Media: An Abstractive Approach Using Transformers
Mithun Das, Somnath Banerjee and Animesh MukherjeeData Bootstrapping Approaches to Improve Low Resource Abusive Language Detection for Indic Languages

KEYNOTE: Inbodied Interaction: principles for hypertext and web scientists to consider how their work can help #makeNormalBetter for all, at scale.

m.c. schraefel – University of Southampton

14:30 to 15:30hs

Why do we (need to) exercise? Meditate? Challenge ourselves to think new thoughts? Why do we wake up feeling fantastic some mornings and not others? Why is being online both easier and harder to communicate?

We are physical creatures; even our mighty brains are physical systems. Indeed, all our experiences are mediated through our bodies – and not just the brain part. And yet most of us know very little about how we work as these complex, interconnected physical systems. Without such understanding, however, the choices we make around crafting “new normals” may miss an opportunity to make them “better” normals – for our health – and related quality of life.

Inbodied Interaction offers models designed specifically to help technologists like hypertext and web scientists align our designs, our systems, with our physical selves to let us thrive. We’ll look at a few of these like the body as site of adaptation, Tuning to explore and test health practices for resilience. We’ll touch on concepts like experiment in a box and Future Ghosts to explore how to co-design healthful cultures of practice and associated infrastructure to let health be as effortless as sitting at a desk or turning on a tap for clean water is today.

The idea is: With these models, we will have a firmer, inbodied foundation from which to design in healthier “new” normals that can help “makeNormalBetter for all, at scale.