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Improving Skin Condition Classification with a Question Answering Model

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arxiv 1811.06165 v1 pith:DAP5WY23 submitted 2018-11-15 cs.CV

Improving Skin Condition Classification with a Question Answering Model

classification cs.CV
keywords modelclassificationaccuracyaloneansweringcombiningcomparedcondition
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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We present a skin condition classification methodology based on a sequential pipeline of a pre-trained Convolutional Neural Network (CNN) and a Question Answering (QA) model. This method enables us to not only increase the classification confidence and accuracy of the deployed CNN system, but also enables the emulation of the conventional approach of doctors asking the relevant questions in refining the ultimate diagnosis and differential. By combining the CNN output in the form of classification probabilities as a prior to the QA model and the image textual description, we greedily ask the best symptom that maximizes the information gain over symptoms. We demonstrate that combining the QA model with the CNN increases the accuracy up to 10% as compared to the CNN alone, and more than 30% as compared to the QA model alone.

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