Abdelghani MADDI
Ingénieur(e) de recherche
Scientometrics, scholarly communication and the organisation of science
I study how scientific knowledge is published, evaluated and circulated, with a particular focus on scholarly publishing, bibliometric data and the institutions that shape access to research.
My work brings together quantitative analysis and questions from the sociology and economics of science. Recent research examines open-access publishing markets, links between science and technological innovation, research integrity and the use of indicators in research evaluation.
Research
The questions I work on range from the reliability of bibliometric databases to the consequences of publishing models for the visibility and use of scientific work. I am also interested in how peer review, post-publication criticism, research infrastructures and assessment practices affect the organisation of scientific activity. Much of this research involves building and analysing large datasets, while keeping their coverage, limitations and institutional origins in view.
Methods and tools. Scientometrics and bibliometrics; statistical modelling; survey analysis; networks and text analysis; research-data engineering; reproducible workflows. R/RStudio, Python, SQL and interactive visualisation.
Funded projects and collaborations
Principal investigator
OPENIT – Opening Publications for a New, Inclusive and Transparent Publishing Ecosystem
Principal Investigator · ANR RESO · 2024–2027 · €251,164 awarded
Research on the structure and transformation of scholarly publishing: business models, publishing platforms, ownership, governance and economic scenarios for the transition to open access.
ÉCOS – Éclairer les Circuits de l’Open Science
Principal Investigator · GIS Réseau des URFIST · funded in 2026 · €25,000 awarded
Economic modelling and interactive resources explaining financial flows, incentives and the sustainability of open-access publishing arrangements.
Collaborative projects
OSYR – Open Science for Young Researchers (work package leader) · ROR² – Research on Research · Skeptiscience
Research infrastructure and open datasets
COSMI Hub – An evolving observatory of open-science initiatives, developed within OPENIT with Isabelle Dorsch and Marc-André Simard. Its interactive dashboard is accompanied by an openly archived, documented dataset.
Explore the observatory · Archived dataset · Source code
Selected publications
Recent peer-reviewed journal articles.
- Open Science, Open Innovation? The Role of Open Access in Patenting ActivityMaddi, A., Abdin, A.Y. & De Pretis, F. · Scientometrics · 2026
- How China Governs Open Science: Policies, Priorities, and Structural ImbalancesChen, X., Maddi, A. & Wang, Y. · Publications · 2025
- The Retraction Gender Gap: Are Mixed Teams More Vulnerable?Maddi, A., Monneau, E. et al. · Quantitative Science Studies · 2025
- Geographical and Disciplinary Coverage of Open Access Journals: OpenAlex, Scopus and WoSMaddi, A., Maisonobe, M. & Boukacem-Zeghmouri, C. · PLOS ONE · 2025
- Streetlight Effect in PubPeer Comments: Are Open Access Publications More Scrutinized?Maddi, A., Monneau, E. et al. · Scientometrics · 2024
- Beyond authorship: Analyzing contributions in PLOS ONE and the challenges of appropriate attributionMaddi, A. & family=Silva, G.A.T.P.U. · Journal of Data and Information Science · 2024
- On the Peer Review Reports: Does Size Matter?Maddi, A. & Miotti, L. · Scientometrics · 2024
- Technological Impact of Funded Research: A Case Study of Non-Patent ReferencesQuemener, J., Miotti, L. & Maddi, A. · Quantitative Science Studies · 2024
- Measuring Open Access Publications: A Novel Normalized Open Access IndicatorMaddi, A. · Scientometrics · 2020
Full publication record on HAL · Full academic CV
Invited talks and conference presentations
Invited lectures and seminars
- 14 Oct 2026Pourquoi la science ouverte est un impératif politique ?4ème édition de la conférence Science ouverte au Sud – Rabat 2026
- Oct 2026When Quality Signals Come Late: What OpenAlex Reveals about Journal DiscontinuationOpenAlex Users Meeting: Paris, 20–21 October 2026 · Paris, France
- Oct 2026L’évaluation responsable à l’épreuve des métriques : De Goodhart aux plans d’action CoARA, remettre les indicateurs à leur juste placeCafé CoARA
- 12 Mar 2026Quelle évaluation de la production scientifique médicale ?États Généraux de la Médecine Intensive – Réanimation (MIR). · Bordeaux
- 26 Feb 2026Jouer avec les métriques : l’art de la manipulation académiqueL’intégrité scientifique au défi des nouvelles pratiques éditoriales · Université de Lorraine
- 23 Sep 2025L’évaluation Par Les Pairs à La Croisée Des Chemins : Changer Les Règles Ou Le Jeux ?PeerReviewWeek, Clarivate Analytics
Conference presentations
- 15 Sep 2026Beyond Citations: Open Access Models and Discoverability in Science-Technology LinkagesFourth OECD Blue Sky Forum on Science and Innovation Indicators · Paris, France
- 10 Sep 2026Being Seen or Used? Open Access Models and Discoverability in Translating Science into PatentsPUBMET2026 · Zadar, Croatia
- 23 Apr 2026Journal Reputation and Scientific Autonomy in Open Access PublishingRESSH 2026 Conference – Research Evaluation and Scientific Autonomy under Pressure · Florence, Italy
Public scholarship and research commentary
The Open Science Landscape Is Increasingly Difficult to Grasp. That’s a Problem. · Femmes et hommes scientifiques : l’effet inattendu du genre dans les rétractions d’articles · The best peer review reports are at least 947 words
Editorial and academic service
Editorial appointments. Editor, Open Information Science (De Gruyter Brill) · Editorial Board, Knowledge Organization · Editorial Board, Journal of Economics & Management.
Academic and institutional roles. Academic Advisory Board, GRIOS (since 2026); Treasurer, ENRESSH (since 2025); Scientific and Technical Information Correspondent, CNRS Humanities and Social Sciences; Open Science Officer, GEMASS.
Scientific committees and assessment. Scientific committees of STI–ENID 2026 and RESSH 2026; chair and member of CNRS research-engineer recruitment juries; PhD examination and thesis committees.
Peer review (selected). Scientometrics; Research Policy; Quantitative Science Studies; Scientific Reports; Humanities and Social Sciences Communications; PLOS ONE; Research Integrity and Peer Review.
Teaching and doctoral research training
Teaching
At Sorbonne Université: Economics and Society (BA Sociology), Sociology of Science (BA), and survey-data analysis with R and RStudio (MA Sociology). Previous teaching at Université Paris Cité and Université Sorbonne Paris Nord included quantitative methods, databases and economics.
Visiting PhD researchers
Visiting PhD research stays at GEMASS, in collaboration with the researchers’ home institutions and supervisors.
- Daoqi Peng – National Science Library, Chinese Academy of Sciences (September 2026–September 2027)
- Xiaoting Chen – Renmin University of China
- Chongjun Xi – Chinese Academy of Sciences
PhD examiner: Yutong Fei, Université Claude Bernard Lyon 1 (June 2026).
Academic background
Research Engineer, CNRS–GEMASS (since 2023); previously Data Scientist at the Science and Technology Observatory, Hcéres (2016–2022). Visiting Scholar at CIRST/UQAM (2016). PhD in Information and Communication Sciences, Université Sorbonne Paris Nord (2018); earlier master’s training in innovation and intellectual property, and applied economics.
