Event segmentation theory posits that people segment continuous experience into discrete events and that event boundaries occur when there are large transient increases in prediction error. Here, we set out to test this theory in the context of story listening, by using a deep learning language model (GPT‐2) to compute the predicted probability distribution of the next word, at each point in the story. For three stories, we used the probability distributions generated by GPT‐2 to compute the time series of (...) prediction error. We also asked participants to listen to these stories while marking event boundaries. We used regression models to relate the GPT‐2 measures to the human segmentation data. We found that event boundaries are associated with transient increases in Bayesian surprise but not with a simpler measure of prediction error (surprisal) that tracks, for each word in the story, how strongly that word was predicted at the previous time point. These results support the hypothesis that prediction error serves as a control mechanism governing event segmentation and point to important differences between operational definitions of prediction error. (shrink)

Journal of Human Values, Volume 28, Issue 1, Page 7-10, January 2022.

The study is an attempt to understand the prevailing discourse in India on education as a right by closely reading the parliamentary debates on The Right of Children to Free and Compulsory Educatio...

Akshaya Mukul, Gita Press and the Making of Hindu India. Noida: HarperCollins Publishers India, The New India Foundation, 2015. 540 pp., ₹799. ISBN: 139789351772309; 109351772306.