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A Probabilistic U-Net for Segmentation of Ambiguous Images

Neural Information Processing Systems

Many real-world vision problems suffer from inherent ambiguities. In clinical applications for example, itmight not be clear from aCT scan alone which particular region is cancer tissue. Therefore a group of graders typically produces a set of diverse but plausible segmentations.







But How Does It Work in Theory? Linear SVM with Random Features

Neural Information Processing Systems

The random features method, proposed by Rahimi and Recht [2008], maps the data to a finite dimensional feature space as a random approximation to the feature space of RBF kernels. With explicit finite dimensional feature vectors available, the original KSVM is converted to a linear support vector machine (LSVM), that can be trained by faster algorithms (Shalev-Shwartz et al.


Coresets for Archetypal Analysis

Neural Information Processing Systems

Several approaches have been proposed to remedy the edacious nature of archetypal analysis, proposing, e.g.,efficient active-set quadratic programming (Chen etal.,2014),