Salim Hafid Postdoctoral researcher - médialab Sciences Po Paris

Identifiants chercheurs

IdHAL :

salim-hafid

ORCID :

0000-0002-1775-8542

Présentation

(last updated: July 2025)

I am currently a postdoctoral researcher at the médialab at Sciences Po, where my research aims to understand the impact of AI on democratic processes such as voting or deliberation. I am a member of the “Democratic Commons” research project, an interdisciplinary project which aims at measuring the impact of AI on democracy. The project involves researchers from political theory, ethics, sociology, and computer science to answer the following question: Do AI systems exhibit democratic biases (e.g political orientation) that could influence the users they interact with? The project is funded by the BPI and conducted by a research consortium including the médialab, CEVIPOF, ISIR, and Make.org.

Before joining SciencesPo, I was trained as an engineer at the National Institute of Applied Sciences (INSA de Lyon), and I hold a PhD in Computer Science from the University of Montpellier, completed as part of the “AI4Sci” european project in collaboration with the Leibniz Institute for Social Sciences (GESIS) in Germany. My doctoral research focused on the study of scientific discourse on social media and led to novel methods which aim at improving the quality of scientific debates online and facilitating fact-checking.

More broadly, my research interests include AI for democracy, computational social sciences, and the analysis and modeling of online discourse. I am member of the organizing committee for the international CheckThat! workshop, and a recipient of the “NSF/SIGWEB Student Award” for my work presented at the international CIKM2022 conference.

Publications

Article dans une revue (1)

An In-depth Analysis of the Linguistic Characteristics of Science Claims on the Web and their Impact on Fact-checking Salim Hafid,Sebastian Schellhammer,Yavuz Selim Kartal,Thomas Papastergiou,Stefan Dietzeet al. ACM Transactions on the Web, 2025, ⟨10.1145/3746170⟩ Article dans une revue hal-05163522v1

Communication dans un congrès (5)

Disambiguation of Implicit Scientific References on X Salim Hafid,Yavuz Selim Kartal,Sebastian Schellhammer,Vetea Jacot,Sandra Bringayet al. HT 2025 - 36th ACM Conference on HyperText and Social Media, Sep 2025, Chicago, United States Communication dans un congrès hal-05163668v1
Cite-worthiness Detection on Social Media: A Preliminary Study Salim Hafid,Wassim Ammar,Sandra Bringay,Konstantin Todorov NSLP 2024 - 1st International Workshop on Natural Scientific Language Processing and Research Knowledge Graphs, May 2024, Hersonissos, Greece. pp.19-30, ⟨10.1007/978-3-031-65794-8_2⟩ Communication dans un congrès hal-04801702v1
Investigating Characteristics, Biases and Evolution of Fact-Checked Claims on the Web Susmita Gangopadhyay,Sebastian Schellhammer,Salim Hafid,Danilo Dessi,Christian Koßet al. HT 2024 - 35th ACM Conference on Hypertext and Social Media, Sep 2024, Poznan Poland, Poland. pp.246-258, ⟨10.1145/3648188.3675135⟩ Communication dans un congrès hal-04801517v1
SciTweets - A Dataset and Annotation Framework for Detecting Scientific Online Discourse Salim Hafid,Sebastian Schellhammer,Sandra Bringay,Konstantin Todorov,Stefan Dietze CIKM 2022 - 31st ACM International Conference on Information and Knowledge Management, Oct 2022, Atlanta, GA, United States. pp.3988-3992, ⟨10.1145/3511808.3557693⟩ Communication dans un congrès hal-04479646v1
A Hybrid Approach for Stock Market Prediction Using Financial News and Stocktwits Alaa Alhamzeh,Saptarshi Mukhopadhaya,Elod Egyed-Zsigmond,Salim Hafid,Alexandre Bremardet al. CLEF 2021: Experimental IR Meets Multilinguality, Multimodality, and Interaction, Sep 2021, Virtual conference, France. pp.15-26, ⟨10.1007/978-3-030-85251-1_2⟩ Communication dans un congrès hal-04020259v1

Pré-publication, Document de travail (2)

Characterizing Democratic Biases in AI-Powered Participatory Democracy Platforms Manon Berriche,Salim Hafid,Andreï Mogoutov,Jean-Philippe Cointet 2026 Pré-publication, Document de travail hal-05531294v1
Scientific Web Claims: A survey of definitions, tasks, datasets and methods Salim Hafid,Sandra Bringay,Konstantin Todorov 2026 Pré-publication, Document de travail hal-05586630v1

Thèse (1)

Détection, liage et interprétation d'énoncés scientifiques et leurs contextes à partir de discours en ligne Salim Hafid Informatique [cs]. Université de Montpellier, 2024. Français. ⟨NNT : 2024UMONS044⟩ Thèse tel-04951515v2