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Regular version of the site

Book chapter

Active Learning for Conversational Interfaces in Healthcare Applications

P. 48-58.
Chernyak E. L., Harma A., Polyakov A.

In automated health services based on text and voice interfaces, there is a need to be able to understand what the user is talking about, and what is the attitude of the user towards a subject. Typical machine learning methods for text analysis require a lot of annotated data for the training. This is often a problem in addressing specific and possibly very personal health care needs. In this paper, we propose an active learning algorithm for the training of a text classifier for a conversational therapy application in the area of health behavior change. A new active learning algorithm, Query by Embedded Committee (QBEC), is proposed in the paper. The methods are particularly suitable for the text classification task in a dynamic environment and give a good performance with realistic test data. 

In book

Edited by: F. Koch. Springer Publishing Company, 2019.