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Article History

Received: 17 July 2017

Accepted: 20 August 2018

First Online: 3 October 2018

Ethics approval and consent to participate

: Two sets of human participants were used in this research. To collect human similarity judgments, participant data were collected under Protocol #14-0680 approved by the Institutional Review Board at the University of Colorado Boulder. This protocol permits the recruitment of participants from Amazon Mechanical Turk. Before participating, individuals indicated their consent by reading and agreeing to an electronic informed consent form. Human training data were collected under Protocol #14-464 approved by Institutional Review Board at the University of Victoria. Participants were provided with an informed consent form to sign in person before participating in the study.

: Not applicable.

: The authors declare that they have no competing interests.

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