4 papers
CHASM: Online Changepoint Detection in Temporal and Cross-Variable Dependence
Victor K. Khamesi, Edward A. K. Cohen, Niall M. Adams +1
Changepoint detection identifies times when the generative process of a time series changes, with applications in healthcare, cybersecurity, and finance. In multivariate settings,…
Simultaneous global and local clustering in multiplex networks with covariate information
Joshua Corneck, Edward A. K. Cohen, James S. Martin +3
Understanding both global and layer-specific group structures is useful for uncovering complex patterns in networks with multiple interaction types. In this work, we introduce a ne…
Spectral embedding of inhomogeneous Poisson processes on multiplex networks
Joshua Corneck, Edward A. K. Cohen, Francesco Sanna Passino
In many real-world networks, data on the edges evolve in continuous time, naturally motivating representations based on point processes. Heterogeneity in edge types further gives r…
Online Bayesian changepoint detection for network Poisson processes with community structure
Joshua Corneck, Edward A. K. Cohen, James S. Martin +1
Network point processes often exhibit latent structure that govern the behaviour of the sub-processes. It is not always reasonable to assume that this latent structure is static, a…