Journal
COMPUTERS
Volume 5, Issue 1, Pages -Publisher
MDPI
DOI: 10.3390/computers5010001
Keywords
active learning; exploration and exploitation; exponentiated gradient
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Active learning strategies respond to the costly labeling task in a supervised classification by selecting the most useful unlabeled examples in training a predictive model. Many conventional active learning algorithms focus on refining the decision boundary, rather than exploring new regions that can be more informative. In this setting, we propose a sequential algorithm named exponentiated gradient (EG)-active that can improve any active learning algorithm by an optimal random exploration. Experimental results show a statistically-significant and appreciable improvement in the performance of our new approach over the existing active feedback methods.
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