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In this paper, we suggest a novel data-driven approach to active learning (AL). The key idea is to train a regressor that predicts the expected error reduction for a candidate sample in a particular learning state. By formulating the query selection procedure as a regression problem we are not restricted to working with existing AL heuristics; instead, we learn strategies based on experience from previous AL outcomes. We show that a strategy can be learnt either from simple synthetic 2D datasets or from a subset of domain-specific data. Our method yields strategies that work well on real data from a wide range of domains.
Author Information
Ksenia Konyushkova (EPFL)
I am Ksenia, a Ph.D. student in the CVLab at EPFL. In my research I apply methods from machine learning (and in particular active learning) to challenging problems in computer vision. I joined CVlab in 2014 and since then I have been working with Prof. Pascal Fua and Prof. Raphael Sznitman. I obtained my M.Sc. degree in Algorithms and Machine Learning from University of Helsinki. During that time, I also worked as a research assistant in the CoSCo group at HIIT. Before, I studied in Russia at the Higher School of Economics in the Faculty of Business Informatics and Applied Mathematics.
Raphael Sznitman (University of Bern)
Pascal Fua (EPFL, Switzerland)
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