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LEWIS: Lund Everyday Waste Image Set Of Naturally Sourced, Normalised, And Evaluated Waste Images

Wrisberg, Anton LU orcid ; Wallin, Annika LU orcid and Pärnamets, Philip (2025)
Abstract
Waste sorting is a cognitively demanding task with high environmental stakes. To support research on the categorisation and decision processes underlying waste sorting behaviour, this paper introduces an evaluated stimulus set of 790 images of naturally occurring waste items. The images were sampled from Danish and Swedish household waste, visually standardised, and evaluated by 526 Swedish participants on real-world frequency, how good an example they are of their waste category, and ease of categorisation. The resulting database offers a valuable resource for experiments in categorisation, judgment and decision-making, and sustainability interventions, enabling researchers to study real-world categorisation with both experimental control... (More)
Waste sorting is a cognitively demanding task with high environmental stakes. To support research on the categorisation and decision processes underlying waste sorting behaviour, this paper introduces an evaluated stimulus set of 790 images of naturally occurring waste items. The images were sampled from Danish and Swedish household waste, visually standardised, and evaluated by 526 Swedish participants on real-world frequency, how good an example they are of their waste category, and ease of categorisation. The resulting database offers a valuable resource for experiments in categorisation, judgment and decision-making, and sustainability interventions, enabling researchers to study real-world categorisation with both experimental control and ecological validity. (Less)
Please use this url to cite or link to this publication:
author
; and
organization
publishing date
type
Working paper/Preprint
publication status
published
subject
keywords
categorisation, frequency, images, prototypicality, waste
publisher
Centre for Open Science
DOI
10.31234/osf.io/b48gv_v1
project
Boosting Public Waste Sorting
language
English
LU publication?
yes
id
8875808b-83cb-4b02-9913-7e74e21fdd6b
date added to LUP
2026-05-06 11:41:24
date last changed
2026-05-28 09:34:39
@misc{8875808b-83cb-4b02-9913-7e74e21fdd6b,
  abstract     = {{Waste sorting is a cognitively demanding task with high environmental stakes. To support research on the categorisation and decision processes underlying waste sorting behaviour, this paper introduces an evaluated stimulus set of 790 images of naturally occurring waste items. The images were sampled from Danish and Swedish household waste, visually standardised, and evaluated by 526 Swedish participants on real-world frequency, how good an example they are of their waste category, and ease of categorisation. The resulting database offers a valuable resource for experiments in categorisation, judgment and decision-making, and sustainability interventions, enabling researchers to study real-world categorisation with both experimental control and ecological validity.}},
  author       = {{Wrisberg, Anton and Wallin, Annika and Pärnamets, Philip}},
  keywords     = {{categorisation; frequency; images; prototypicality; waste}},
  language     = {{eng}},
  month        = {{12}},
  note         = {{Preprint}},
  publisher    = {{Centre for Open Science}},
  title        = {{LEWIS: Lund Everyday Waste Image Set Of Naturally Sourced, Normalised, And Evaluated Waste Images}},
  url          = {{http://dx.doi.org/10.31234/osf.io/b48gv_v1}},
  doi          = {{10.31234/osf.io/b48gv_v1}},
  year         = {{2025}},
}