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  • Silvia Sofianos
    • Slovakia,
    • CVTISR - The Slovak Centre of Scientific and Technical Information, https://www.cvtisr.sk/aktuality-pre-odbornu-verejnost/sucasny-medicinsky-vyskum-a-prax-su-este-dostupnejsie.html?page_id=41397,
  • Librarian
  • NOAD
  • All areas below are grounded in Open Science principles and practices. Skills Development and Training
  • A few words on your expertise: Library and Information Science
Silvia Sofianos holds Master degree from Comenius University – Department of Library and Information Studies and is working since 2016 in CVTI SR in Open Science Support Department and as NOAD for Slovakia. CVTI SR is providing information support for open science, open publishing, open access to results of scientific research and running Open Science course for librarians and researchers.

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  • Peter Stanchev
    • Bulgary,
    • Institute of Mathematics and Informatics, Bulgarian Academy of Sciences, https://math.bas.bg/?lang=en,
  • Professor
  • Mathematics/Computer Science
  • NOAD
  • All areas below are grounded in Open Science principles and practices. AI, Data Science and Analytics
  • Research Information Systems, Repositories and Interoperability, Metadata, Identifiers and Standards, Data Ingestion, Curation and Quality Control
  • Training and Support
Peter Stanchev is a professor in the Software Engineering and Information Systems Department at the Institute of Mathematics and Informatics, Bulgarian Academy of Sciences. He is also a professor at Kettering University, Flint, Michigan, USA. He has M.Sc., Ph.D. and D.Sc. in Mathematics/Computer Science from Sofia University. He has forty-five years of professional experience in of multimedia systems, database systems, multimedia semantics, education, open access to scientific information and data and medical systems. He has published 2 books, more than 200 chapters in monographs, journal and conference peer-reviewed papers, more than 200 conference papers and seminars, and has more than 2400 citations, h-index - 24, i-10 index – 38, impact factor – 77.03. Serving also on many database and multimedia conference program committees, he is currently editor-in-chief and member of the editorial boards of several journals. He is the Bulgarian representative in the EU OpenAIRE projects since 2008.

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  • Susanne Blumesberger
    • Austria, Austria
    • University of Vienna, https://www.univie.ac.at/en/,
  • Head of the Coordination Centre for Science Communication and Citizen Science
  • Library Sciences
  • NOAD
  • All areas below are grounded in Open Science principles and practices. Research Software and Reproducibility
  • Outreach, Communication and Engagement, Training and Support, Open Science Strategies
Susanne Blumesberger has been employed at the Vienna University Library since 2007, has played a key role in the establishment of the PHAIDRA repository and has led the PHAIDRA Services repository management department since 2016 until May 2025.

In 2016, she also founded the Austria-wide network for repository managers. Since June 2025, she has headed the Coordination Centre for Science Communication and Citizen Science.

She completed her studies in Communication Sciences and German Studies at the University of Vienna, subsequently obtaining a doctorate. She then held positions at the University of Vienna and at the Institute of Science and Art, where she served as a coordinator and editor for several third-party funded projects.

At the Vienna University Library, she is the Head of the Coordination Centre for Science Communication and Citizen Science and specialises in open data, open science and, most importantly, accessibility. In addition to her current role, she serves as Second Vice President of the Austrian Association of Librarians.

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  • Georgi Simeonov
    • Bulgary,
    • Institute of Mathematics and Informatics, Bulgarian Academy of Sciences, https://math.bas.bg/?lang=en,
  • Technical Coordinator, Researcher, IMI-BAS
  • Computer Science
  • NOAD

Ph.D. Georgi Simeonov is  assist. professor  at the Institute of Mathematics and Informatics, Bulgarian Academy of Sciences. 

Extensive experience with transformer frameworks and deep learning (LLM, RAG, Knowledge Graphs), including PyTorch, TensorFlow, and open LLM models. Experienced with Document Management Systems, digital repositories, and platforms for long‑term data preservation. Skilled in ETL , metadata management, data mining, information retrieval, search and indexing, and metadata harvesting via OAI‑PMH.  Contributed to European initiatives that build open‑access scientific infrastructures and federated networks of electronic repositories and archives.

Key contributions

  • System design and implementation — Architected and deployed scalable DMS and digital repository solutions optimized for long‑term storage and discoverability.

  • Data integration and processing — Built ETL pipelines to ingest, normalize, and enrich heterogeneous datasets for repository ingestion and analytics.

  • Metadata strategy — Defined metadata schemas, implemented harvesting workflows, and ensured interoperability across repositories using OAI‑PMH.

  • Search and retrieval — Implemented indexing and search solutions to improve discoverability and relevance for large collections.

  • Standards and interoperability — Ensured compliance with open‑access and repository standards to enable federation and centralized access via web services.

Selected OA projects

  • OpenAIRE — Contributed to the Open Access Infrastructure for Research in Europe, supporting federation of repositories and centralized discovery services.

  • EuDML — Worked on the European Digital Mathematics Library to aggregate and provide access to mathematical literature.

  • DRIVER — Participated in the Digital Repository Infrastructure for research.


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  • Gita Rozenberga
    • Latvia,
    • University of Latvias, https://www.lu.lv/en/,
  • Chief Librarian
  • NOAD
Ms Gita Rozenberga, representative of the National Open Access Desk in Latvia. Her responsibilities include advising on Open Access and opening science questions, organizing and/or providing activities for training and support scientific community in Latvia, collecting information about Open Access situation in Latvia. 

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