Recommender systems use data collected about past behaviours, such as books or music choices, of large numbers of people and use this to suggest new things to read, or listen to. They use bog data echnques such as lareg-scale statistical methods.
Used in Chap. 8: pages 111, 119; Chap. 10: page 153; Chap. 13: page 217; Chap. 17: page 283; Chap. 19: pages 314, 317, 320; Chap. 21: page 353; Chap. 24: page 402