4 papers
Occam Factor for Random Graphs: Erdös-Rényi, Independent Edge, and Rank-1 Stochastic Blockmodel
Tianyu Wang, Zachary M. Pisano, Carey E. Priebe
We investigate the evidence/flexibility (i.e., "Occam") paradigm and demonstrate the theoretical and empirical consistency of Bayesian evidence for the task of determining an appro…
Conjugate Bayesian analysis of compound-symmetric Gaussian models
Zachary M. Pisano
We discuss Bayesian inference for a known-mean Gaussian model with a compound symmetric variance-covariance matrix. Since the space of such matrices is a linear subspace of that of…
Occam Factor for Gaussian Models With Unknown Variance Structure
Zachary M. Pisano, Daniel Q. Naiman, Carey E. Priebe
We discuss model selection to determine whether the variance-covariance matrix of a multivariate Gaussian model with known mean should be considered to be a constant diagonal, a no…
Spectral graph clustering via the Expectation-Solution algorithm
Zachary M. Pisano, Joshua S. Agterberg, Carey E. Priebe +1
The stochastic blockmodel (SBM) models the connectivity within and between disjoint subsets of nodes in networks. Prior work demonstrated that the rows of an SBM's adjacency spectr…