How many people need to classify the same image? A method for optimizing volunteer contributions in binary geographical classifications

• Carl Salk ,

  Roles Data curation, Formal analysis, Investigation, Methodology, Software, Visualization, Writing – original draft, Writing – review & editing

  * E-mail: carl.salk@slu.se

  Affiliations Southern Swedish Forest Research Centre, Swedish University of Agricultural Sciences, Alnarp, Sweden, Faculty of International Studies, Utsunomiya University, Utsunomiya, Japan

  https://orcid.org/0000-0003-2833-8292

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• Elena Moltchanova,

  Roles Formal analysis, Visualization, Writing – original draft, Writing – review & editing

  Affiliation School of Mathematics and Statistics, University of Canterbury, Christchurch, New Zealand

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• Linda See,

  Roles Conceptualization, Funding acquisition, Writing – original draft, Writing – review & editing

  Affiliation Novel Data Ecosystems for Sustainability Group, Advancing Systems Analysis Program, International Institute for Applied Systems Analysis, Laxenburg, Austria

  https://orcid.org/0000-0002-2665-7065

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• Tobias Sturn,

  Roles Conceptualization, Data curation, Investigation, Methodology, Software, Validation, Writing – review & editing

  Affiliation Novel Data Ecosystems for Sustainability Group, Advancing Systems Analysis Program, International Institute for Applied Systems Analysis, Laxenburg, Austria

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• Ian McCallum,

  Roles Funding acquisition, Resources, Writing – original draft, Writing – review & editing

  Affiliation Novel Data Ecosystems for Sustainability Group, Advancing Systems Analysis Program, International Institute for Applied Systems Analysis, Laxenburg, Austria

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• Steffen Fritz

  Roles Conceptualization, Funding acquisition, Project administration, Resources, Supervision, Writing – review & editing

  Affiliation Strategic Initiatives Program, International Institute for Applied Systems Analysis, Laxenburg, Austria

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