I.e. the elements of each column sum up to 1, so the matrix is a stochastic matrix (for more details see the computation compartiment below). Thus this is a variant of the eigenvector centrality measure used commonly in network analysis. A statement in Passage and Morceau's paper that "the sum https://pagerank89900.bloggazza.com/32487058/pagerank-choses-à-savoir-avant-d-acheter