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We study the problem of training an accurate linear regression model by procuring labels from multiple noisy crowd annotators, under a budget constraint. We propose a Bayesian model for linear regression in crowdsourcing and use variational inference for parameter estimation. To minimize the number of labels crowdsourced from the annotators, we adopt an active learning approach. In this specific context,...
We address the problem of estimating high-dimensional covariance matrices (CM) for the explicit purpose of supervised anomaly detection, in the case when the number n of data points is lower than their dimensionality p. This is increasingly common with the emergence of the Internet of Things that makes it possible to collect data from many sensors simultaneously, resulting in very high-dimensional...
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