One-shot categorization of novel object classes in humans.
One aspect of human vision unmatched by machines is the capacity to generalize from few samples. Observers tend to know when novel objects are in the same class despite large differences in shape, material or viewpoint. A major challenge in studying such generalization is that participants can see e...
| Publicado en: | Vision Research Vol. 165; pp. 98 - 109 |
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| Autores principales: | , , |
| Formato: | research Journal Article |
| Publicado: |
Pergamon Press - An Imprint of Elsevier Science
Dec2019
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| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ccm&AN=141774562&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 141774562 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 00426989 2FL jtl: Vision Research issn: 00426989 maglogo: N pubinfo: dt: Dec2019 vid: 165 pid: 2410 pub: Pergamon Press - An Imprint of Elsevier Science artinfo: ui: 141774562 141774562 NLM31707254 141774562 10.1016/j.visres.2019.09.005 NLM31707254 141774562 ppf: 98 ppct: 11 formats: tig: atl: One-shot categorization of novel object classes in humans. aug: au: Morgenstern, Yaniv Schmidt, Filipp Fleming, Roland W. affil: Department of Experimental Psychology, Justus-Liebig University Giessen, Giessen 35394, Germany sug: subj: Visual Perception Physiology Attention Perception Human Physical Stimulation Methods Comparative Studies Multicenter Studies Evaluation Research Validation Studies ab: One aspect of human vision unmatched by machines is the capacity to generalize from few samples. Observers tend to know when novel objects are in the same class despite large differences in shape, material or viewpoint. A major challenge in studying such generalization is that participants can see each novel sample only once. To overcome this, we used crowdsourcing to obtain responses from 500 human observers on 20 novel object classes, with each stimulus compared to 1 or 16 related objects. The results reveal that humans generalize from sparse data in highly systematic ways with the number and variance of the samples. We compared human responses to 'ShapeComp', an image-computable model based on >100 shape descriptors, and 'AlexNet', a convolution neural network that roughly matches humans at recognizing 1000 categories of real-world objects. With 16 samples, the models were consistent with human responses without free parameters. Thus, when there are a sufficient number of samples, observers rely on shallow but efficient processes based on a fixed set of features. With 1 sample, however, the models required different feature weights for each object. This suggests that one-shot categorization involves more sophisticated processes that actively identify the unique characteristics underlying each object class. pubtype: Academic Journal doctype: research Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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