3 papers
cs.LG2026
Posterior Regimes and Latent Deception: Variational Bayesian Inference in Hidden Markov Models for Sequential Fraud Detection in Financial Transactions
Joseph Uririoghene Obukofe, Anthony O'Hare, Chioma Sandra Dike
We present a three-tier progression of Hidden Markov Models: maximum-likelihood (Baum-Welch), variational Bayesian (VBEM), and a neural variational extension (Neural VBEM), that mo…
cs.SI2026
Rumour Spreading In Community Based Networks
Zhaoxi Cui, Anthony O'Hare
Many real-world networks have the characteristic that they are comprised of distinct groups or communities whose members contain many links within the community but with fewer conn…
stat.AP2023
Investigating Causal links from Observed Features in the first COVID-19 Waves in California
Sarah Good, Anthony O'Hare
Determining who is at risk from a disease is important in order to protect vulnerable subpopulations during an outbreak. We are currently in a SARS-COV-2 (commonly referred to as C…