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LifeCLEF 2021


Tentative Schedule

  • Jan 2020: registration opens for all LifeCLEF challenges
  • Jan-March 2021: training and test data release
  • 7 May 2021: deadline for submission of runs by participants
  • 14 May 2021: release of processed results by the task organizers
  • 28 May 2021: deadline for submission of working note papers by participants [CEUR-WS proceedings]
  • 11 June 2021: notification of acceptance of working note papers [CEUR-WS proceedings]
  • 2 July 2021: camera ready working note papers by participants and organizers
  • 21-24 Sept 2021: CLEF 2021 Bucharest, Romania

LifeCLEF 2021 brief overview

A brief overview of the whole LifeCLEF lab will be presented at ECIR 2021 conference (March 28 – April 1, 2021).


Building accurate knowledge of the identity, the geographic distribution and the evolution of species is essential for a sustainable development of humanity, as well as for biodiversity conservation. However, the burden of the routine identification of plants and animals in the field is strongly penalizing the aggregation of new data and knowledge. Identifying and naming living plants or animals is actually almost impossible for the general public and often a difficult task for professionals and naturalists. Bridging this gap is a key challenge towards enabling effective biodiversity monitoring systems. The LifeCLEF evaluation campaign aims at boosting and evaluating the advances in this domain since 2011. In particular, the 2021 edition proposes three data-oriented challenges related to the identification and prediction of biodiversity: (i) BirdCLEF 2021: bird species recognition in audio soundscapes, (ii) GeoLifeCLEF 2021: location-based prediction of species based on environmental and occurrence data, (iii) PlantCLEF 2021: a cross-domain image classification task aimed at identifying plants in pictures based on a training set of herbarium sheets, and (iv) SnakeCLEF 2021: an image-based snake identification task.


The winner of each of the four LifeCLEF 2021 challenges will be offered a cloud credit grants of 5k USD as part of Microsoft's AI for earth program.

Registration and data access

Coming soon

CLEF Conference and working notes

CLEF Initiative CLEF 2021 logo

LifeCLEF lab is part of the Conference and Labs of the Evaluation Forum (CLEF). CLEF consists of independent peer-reviewed workshops on a broad range of challenges in the fields of multilingual and multimodal information access evaluation, and a set of benchmarking activities carried in various labs designed to test different aspects of mono and cross-language Information retrieval systems. More details can be found on the CLEF 2021 website.

Submitting a working note with the full description of the methods used in each run is mandatory. Any run that could not be reproduced thanks to its description in the working notes might be removed from the official publication of the results. Working notes are published within CEUR-WS proceedings, resulting in an assignment of an individual DOI (URN) and an indexing by many bibliography systems including DBLP. According to the CEUR-WS policies, a light review of the working notes will be conducted by LifeCLEF organizing committee to ensure quality. As an illustration, LifeCLEF 2020 working notes (task overviews and participant working notes) can be found within CLEF 2020 CEUR-WS proceedings.

Organizing Team


  • Alexis Joly, INRIA / University of Montpellier, LIRMM, ZENITH team, France,, France, alexis.joly(replace-by-an-arrobe)
  • Henning Müller, University of Applied Sciences Western Switzerland in Sierre, Switzerland, henning.mueller(replace-by-an-arrobe)


  • Stefan Kahl, Chemnitz University of Technology, Germany, stefan.kahl(replace-by-an-arrobe)>
  • Willem-Pier Vellinga, Xeno-Canto foundation for nature sounds, The Netherlands, wp(replace-by-an-arrobe)
  • Hervé Glotin, University of Toulon, France, glotin(replace-by-an-arrobe)
  • Hervé Goëau, Cirad - AMAP, Montpellier, France.
  • Fabian-Robert Stöter, INRIA Sophia-Antipolis - ZENITH team, LIRMM, University of Montpellier, France


  • Benjamin Deneu, INRIA / University of Montpellier, LIRMM, ZENITH team, France, benjamin.deneu(replace-by-an-arrobe)
  • Christophe Botella, Université de Grenoble Rhônes Alpes, France, christophe.botella(replace-by-an-arrobe)
  • Elijah Cole, Caltech, Computing and Mathematical Sciences, US, ecole(replace-by-an-arrobe)
  • Titouan Lorieul, University of Montpellier, Inria, LIRMM, titouan.lorieul(replace-by-an-arrobe)
  • Maximilien Servajean, LIRMM – UMPV, Montpellier, France, Maximilien.Servajean(replace-by-an-arrobe)


  • Hervé Goëau, Cirad - AMAP, Montpellier, France.
  • Pierre Bonnet, Cirad – AMAP, Montpellier, France, pierre.bonnet(replace-by-an-arrobe)


  • Lukas Picek, Dept. of Cybernetics, FAV, University of West Bohemia, Czechia, lukaspicek(replace-by-an-arrobe)
  • Rafael Ruiz De Castaneda, University of Geneva, Switzerland, Rafael.RuizDeCastaneda(replace-by-an-arrobe)
  • Andrew Dorso, University of Geneva, Switzerland.

Infrastructure support

  • Ivan Eggel, University of Applied Sciences Western Switzerland, Sierre, Switzerland, ivan.eggel(replace-by-an-arrobe)
  • Julien Champ, INRIA Sophia-Antipolis - ZENITH team, LIRMM, University of Montpellier, France, julien.champ(replace-by-an-arrobe)


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