@CONFERENCE\{IMM2012-06508, author = "T. Herlau and M. M{\o}rup and M. N. Schmidt and L. K. Hansen", title = "Modeling dense relational data", year = "2012", booktitle = "Machine Learning for Signal Processing (MLSP), 2012 {IEEE} International Workshop on", volume = "", series = "", editor = "", publisher = "", organization = "", address = "", url = "http://www2.compute.dtu.dk/pubdb/pubs/6508-full.html", abstract = "Relational modelling classically consider sparse and discrete data. Measures of influence computed pairwise between temporal sources naturally give rise to dense continuous-valued matrices, for instance p-values from Granger causality. Due to asymmetry or lack of positive definiteness they are not naturally suited for kernel {K-}means. We propose a generative Bayesian model for dense matrices which generalize kernel {K-}means to consider off-diagonal interactions in matrices of interactions, and demonstrate its ability to detect structure on both artificial data and two real data sets." }