No abstract

Labeling of datasets is an essential task for supervised and semi-supervised machine learning. Model-based active learning and user-based interactive labeling are two complementary strategies for this task. We propose VisGIL which, using visual cues, guides the user in the selection of instances to label based on utility measures deduced from an active learning model. We have implemented the approach and conducted a qualitative and quantitative user study and a think-aloud test. The studies reveal that guidance by visual cues improves the trained model’s accuracy, reduces the time needed to label the dataset, and increases users’ confidence while selecting instances. Furthermore, we gained insights regarding how guidance impacts user behavior and how the individual visual cues contribute to user guidance. A video of the approach is available: https://ml-and-vis.org/visgil/.

We report on promising results concerning the fast and accurate diagnosis of developmental coordination disorder (DCD) which heavily impacts the life of affected children with emotional and behavioral issues. Using a machine learning classifier on spectral data of electroencephalography (EEG) recordings and unfolding the traditional frequency bandwidth in a fine-graded equidistant 99-point spectrum we were able to reach an accuracy of over 99.35 percent having only one misclassification. Our machine learning work contributes to healthcare and information systems research. While current diagnostic methods in use are either complicated, time-consuming, or inaccurate, our automated machine-based approach is accurate and reliable. Our results also provide more insights into the relationship between DCD and brain activity which could stimulate future work in medicine.