Distributed Learning for Melanoma Classification using Personal Health Train

03/24/2021
by   Yongli Mou, et al.
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Skin cancer is the most common cancer type. Usually, patients with suspicion of cancer are treated by doctors without any aided visual inspection. At this point, dermoscopy has become a suitable tool to support physicians in their decision-making. However, clinicians need years of expertise to classify possibly malicious skin lesions correctly. Therefore, research has applied image processing and analysis tools to improve the treatment process. In order to perform image analysis and train a model on dermoscopic images data needs to be centralized. Nevertheless, data centralization does not often comply with local data protection regulations due to its sensitive nature and due to the loss of sovereignty if data providers allow unlimited access to the data. A method to circumvent all privacy-related challenges of data centralization is Distributed Analytics (DA) approaches, which bring the analysis to the data instead of vice versa. This paradigm shift enables data analyses - in our case, image analysis - with data remaining inside institutional borders, i.e., the origin. In this documentation, we describe a straightforward use case including a model training for skin lesion classification based on decentralised data.

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