Jean Tague Sutcliff Doctoral Poster Competition Committee, Co-chair, 2013-2014
International Society for Knowledge Organization (ISKO)
Secretary and Treasurer, elected, 2018-2022
International Federation of Library Associations and Institutions (IFLA).
Subject Analysis and Access Standing Committee, Chair, 2019-2021; Member, 2017-present
Bibliographic Conceptual Models Review Group (BCM-RG), Member, 2018-present
Functional Requirements for Bibliographic Records Review Group (FRBR-RG), Member, 2014-2018 (change to BCM-RG in 2018)
Functional Requirements for Subject Authority Data (FRSAR) Review Group, Member, 2013-2014
Functional Requirements for Subject Authority Data (FRSAR) Working Group, Co-chair and Secretary, 2005-2010
WLIC 2019. Satellite “Metadata specialists in the machine age” Program Committee, Member 2018-2019WLIC 2018. IFLA Subject Analysis and Access Standing Committee (IFLA SAA), Section Open Session. Program Chair (2018)
WLIC 2018. Subject Analysis and Access Open Session, Program Chair
WLIC 2016. Classification and Indexing Section, Satellite Host Organizer and Program Committee Member, 2016
Metadata and Semantics Research Conference (MTSR)
MTSR 2016-present. Reviewer; Program Committee
MTSR 2018. Program co-Chair
Alexander Technological Educational Institute (ATEI) of Thessaloniki (Greece). Department of Library Science and Information Systems.
Committee of Faculty Selection and Promotion. International Faculty Representative Member, 2014-present
Ionian University. Faculty of Information Science & Informatics. Department of Archives, Library Science and Museology.
Committee on Faculty Tenure and Promotion. International Faculty Representative Member, 2015-present