Note: if you’re unfamiliar with the series, there are many spoilers in the journal article.

ABSTRACT: Predictions are made for the number of chapters told from the point of view of each character in the next two novels in George R. R. Martin’s \emph{A Song of Ice and Fire} series by fitting a random effects model to a matrix of point-of-view chapters in the earlier novels using Bayesian methods. {{SPOILER WARNING: readers who have not read all five existing novels in the series should not read further, as major plot points will be spoiled.}}

By Richard Vale. From Arxiv.org. Pdf here.