Nauta, Meike

Seifert, Christin

Theodorus, Abraham

English

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Evaluating CNN interpretability on sketch classification

While deep neural networks (DNNs) have been shown to outperform humans on many vision tasks, their intransparent decision making process inhibits wide-spread uptake, especially in high-risk scenarios. The BagNet architecture was designed to learn visual features that are easier to explain than the feature representation of other convolutional neural networks (CNNs). Previous experiments with BagNet were focused on natural images providing rich texture and color information. In this paper, we investigate the performance and interpretability of BagNet on a data set of human sketches, i.e., a data set with limited color and no texture information. We also introduce a heatmap interpretability score (HI score) to quantify model interpretability and present a user study to examine BagNet interpretability from user perspective. Our results show that BagNet is by far the most interpretable CNN architecture in our experiment setup based on the HI score.</p

University of Twente Research Information

http://www.scopus.com/inward/record.url?scp=85081171062&partnerID=8YFLogxK

Evaluating CNN interpretability on sketch classification

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University of Twente Research Information