HAL (open archive)

HAL (open archive)
Name	HAL (open archive)
Type	Open access repository
Owner	Centre pour la Communication Scientifique Directe
Launched	2001
Country	France
Languages	French, English

HAL (open archive) is a multidisciplinary open access repository for scholarly documents, institutional archives, and research outputs. It aggregates preprints, postprints, theses, conference papers, datasets, and technical reports from researchers affiliated with universities, research organizations, and cultural institutions across Europe and worldwide. HAL interoperates with national and international infrastructures to enable long-term preservation, discoverability, and scholarly communication.

Overview

HAL functions as a central repository connecting institutional libraries, national agencies, and disciplinary platforms such as CNRS, INSERM, INRIA, Université de Paris, and École normale supérieure. It implements protocols and standards used by OpenAIRE, ORCID, Crossref, DataCite, and OAI-PMH to facilitate metadata exchange with services like Europe PMC, PubMed Central, Zenodo, and HAL-Europe. HAL supports rights management aligned with Creative Commons licenses and integrates identifiers including DOI, ORCID iD, ISNI, and Open Researcher and Contributor ID for robust attribution. Stakeholders include national ministries such as the Ministry of Higher Education, Research and Innovation (France), international consortia like COAR, and research funders including the European Research Council and Horizon 2020 programs.

History and Development

Development began in the early 2000s through initiatives led by French organizations CNRS, CCSD, and university partners including Université Paris-Saclay and Université Grenoble Alpes. Milestones include integration with scholar networks such as HAL-Inria and thematic portals tied to institutes like CEA and IRD. Collaborations expanded to encompass European projects including OpenAIRE and national infrastructures such as RENATER and France Grilles. Over time, HAL adopted metadata schemas and interoperability patterns used by Dublin Core, MARC 21, and MODS, and incorporated persistent identifiers promoted by DataCite and Crossref to enable citation linking with publishers like Elsevier, Springer Nature, Wiley, and Taylor & Francis.

Features and Services

HAL provides submission workflows for researchers affiliated with institutions such as Sorbonne Université, Université de Lyon, Université Toulouse III, Université de Nantes, and Aix-Marseille Université. It offers embargo management, license selection (including CC BY, CC BY-NC), and versioning compatible with preprint servers like arXiv and subject repositories such as bioRxiv, medRxiv, and SSRN. HAL supports metadata enrichment with links to authority files like VIAF and integration with researcher identifiers such as ResearcherID. Institutional teams at libraries including Bibliothèque nationale de France, SUDOC, and consortia like SLSP can manage collections and harvest records via APIs. Services include advanced search, bulk deposit, statistics dashboards comparable to Altmetric indicators, and export formats used by tools such as Zotero, Mendeley, EndNote, and RefWorks.

Content and Scope

The repository hosts works spanning disciplines represented at institutions such as École Polytechnique, HEC Paris, Sciences Po, Conservatoire National des Arts et Métiers, and regional universities. Collections encompass humanities outputs related to archives from libraries like Bibliothèque nationale de France and science outputs from research centers such as Institut Pasteur, CNES, CEA, and INRAE. It indexes conference proceedings from organizations such as IEEE, ACM, and learned societies like Société Française de Physique and Ligue Française de Cardiologie. Theses and dissertations deposited include submissions tied to doctoral schools associated with Habilitation à diriger des recherches programs and institutions across the European Higher Education Area. The scope extends to digital humanities projects, archaeological reports connected to museums like Musée du Louvre, and data linked to observatories such as Observatoire de Paris.

Governance and Funding

Management is overseen by the Centre pour la Communication Scientifique Directe and governed through partnerships with national research organizations such as CNRS, INSERM, INRIA, and university libraries including Université PSL members. Funding sources include grants and agreements with entities like the Ministry of Higher Education, Research and Innovation (France), European programs such as Horizon Europe, and institutional contributions from universities and public research institutes. Strategic governance engages stakeholders from bodies including COAR, EUDAT, OPERAS, and national library networks like Bibliothèques universitaires to align policies on open science, preservation, and access.

Usage, Impact, and Reception

HAL is widely used by researchers at institutions such as Université de Strasbourg, Université de Montpellier, Université Clermont Auvergne, Université de Bordeaux, and technical schools like INSA Lyon for disseminating preprints and archived publications. It has informed policy discussions at bodies such as the European Commission and national evaluations by organizations like ANR and influenced open access mandates similar to those advocated by Plan S. Scholarly visibility through HAL interfaces with aggregators like Google Scholar and discovery platforms such as BASE and WorldCat, and has been cited in analyses by research organizations including Science Europe and UNESCO. Reception in publishing and academic communities involves dialogue with commercial publishers such as Elsevier and Springer Nature regarding embargoes, while librarians and funders from SPARC and LIBER cite HAL as a foundational infrastructure for French and European open science ecosystems.

Category:Open access repositories