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2022 | OriginalPaper | Chapter

The Joint Role of Batch Size and Query Strategy in Active Learning-Based Prediction - A Case Study in the Heart Attack Domain

Authors : Bruno Faria, Dylan Perdigão, Joana Brás, Luis Macedo

Published in: Progress in Artificial Intelligence

Publisher: Springer International Publishing

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Abstract

This paper proposes an Active Learning algorithm that could detect heart attacks based on different body measures, which requires much less data than the passive learning counterpart while maintaining similar accuracy. To that end, different parameters were tested, namely the batch size and the query strategy used. The initial tests on batch size consisted of varying its value until 50. From these experiments, the conclusion was that the best results were obtained with lower values, which led to the second set of experiments, varying the batch size between 1 and 5 to understand in which value the accuracy was higher. Four query strategies were tested: random sampling, least confident sampling, margin sampling and entropy sampling. The results of each approach were similar, reducing by 57% to 60% the amount of data required to obtain the same results of the passive learning approach.

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previous chapter GANs for Integration of Deterministic Model and Observations in Marine Ecosystem

next chapter Backpropagation Through States: Training Neural Networks with Sequentially Semiseparable Weight Matrices

Active Learning is also used in the ML branch of Reinforcement Learning; in this paper, we are confined to the ML branch of Supervised and Semi-Supervised Learning.

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Title: The Joint Role of Batch Size and Query Strategy in Active Learning-Based Prediction - A Case Study in the Heart Attack Domain
Authors: Bruno Faria
Dylan Perdigão
Joana Brás
Luis Macedo
Publisher: Springer International Publishing
Book: Progress in Artificial Intelligence
Print ISBN: 978-3-031-16473-6

Electronic ISBN: 978-3-031-16474-3

Copyright Year: 2022
DOI: https://doi.org/10.1007/978-3-031-16474-3_38

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