Often humans are asked to label data with classifications or other information in order to guide the training of supervised learning. algorithms. This may be domain experts as part of knoweldge elicition, {crowdsourcing}} of data, for example through reCAPTCHA, or people naming their day-to-day actvities.
Used in Chap. 6: page 85; Chap. 9: page 119; Chap. 18: pages 282, 290; Chap. 20: pages 318, 323
Also known as expert labelling
reCAPTCHA – human creating training data for machine learning
Expert labelling used alongised unsupervised learning
Hybrid expert system incorporating machine learning guided by human expertise.