Title: Dropout-based Active Learning for Regression,
Abstract: Active learning is relevant and challenging for high-dimensional regression
models when the annotation of the samples is expensive. Yet most of the
existing sampling methods cannot be applied to large-scale problems, consuming
too much time for data processing. In this paper, we propose a fast active
learning algorithm for regression, tailored for neural network models. It is
based on uncertainty estimation from stochastic dropout output of the network.
Experiments on both synthetic and real-world datasets show comparable or better
performance (depending on the accuracy metric) as compared to the baselines.
This approach can be generalized to other deep learning architectures. It can
be used to systematically improve a machine-learning model as it offers a
computationally efficient way of sampling additional data.