Vivien Petras (Berlin School of Library and Information Science, Humboldt-Universit├Ąt zu Berlin) has long been involved in the coordination of CLEF campaigns, particularly as track coordinator for the domain-specific track (2007-2008) and as organizer of the GeoCLEF track and TEL@CLEF tracks (2008-2009). She was a member of the steering committee for the LogCLEF track (2009) and lab organizing chair (together with Paul Clough, University of Sheffield) for the CLEF 2011 conference. She is a member of PROMISE, the FP7 European Network of Excellence on the experimental evaluation of multilingual and multimodal information access systems and the Europeana v2.0 Thematic Network (continued running and development of Europeana).

Nicola Ferro (Department of Information Engineering, University of Padova) is and has been involved in the overall coordination of the CLEF evaluation campaigns for many years as well as in the organization of tracks (Ad-hoc, TEL@CLEF, Grid@CLEF, GeoCLEF). He has been programme co-chair of the CLEF 2010 Conference on Multilingual and Multimedia Information Access Evaluation. He is the coordinator of PROMISE, the FP7 European Network of Excellence on the experimental evaluation of multilingual and multimodal information access systems. He has participated and participates in several national and international projects, recent ones are: EuropeanaConnect (multilingual information access services for Europeana and their evaluation), Europeana v 1.0 (multilinguality and annotations in the Europeana Data Model), TrebleCLEF (best practices, collaboration, and evaluation for multilingual information access systems).

Birger Larsen (Royal School of Library and Information Science, Copenhagen) was co-organizer of the INEX Interactive Track 2004-2007 and member of the INEX steering committee. He is executive board member and principal investigator of two work packages in the Danish LARM project, which builds a cultural heritage infrastructure for 1.2 million hours of radio broadcasts. He is involved in creating an Information Retrieval test collection for integrated search (iSearch). He also does research and consultancy in bibliometrics and quantitative research evaluation, was program chair of the ISSI 2009 conference, and is involved in the ACUMEN EU FP7 project, and the COST MUMIA network which investigates multifaceted access to patent information.

Elaine Toms (The Information School, University of Sheffield) participated in Interactive tracks for TREC and INEX, and designed the tasks for the interactive track in INEX 2006. She has participated in large interdisciplinary projects in Canada including one in cultural heritage that examined how French and English Canadians explore culture and heritage websites, and how historian and genealogists use finding aids. She has also conducted large experiments (from 100 to nearly 400 lab participants) for both goal-based and non-goal based (i.e., the classic browse task) tasks, and is currently involved in examining evaluation alternatives, from log analysis, to observation and psychometric scale development.

Antoine Isaac (Europeana, The Hague, Netherlands) has been scientific coordinator at Europeana since 2009. His research interests lie in the application of Semantic Web / Linked Data technology in the cultural heritage domain, particularly the representation of metadata and controlled vocabularies and the use of ontological mappings to access heterogeneous collections. He co-organized the library thesaurus mapping task (2009) in the Ontology Alignment Evaluation Initiative OAEI ( Lizzy Komen is Business Project coordinator at Europeana and responsible for the Europeana v2.0 Thematic Network.