49 citations · 50 across the 7 of their papers we have counts for
7 papers
Learning from Neighbors with PHIBP: Predicting Infectious Disease Dynamics in Data-Sparse Environments
Edwin Fong, Lancelot F. James, Juho Lee
Modeling sparse count data, which arise across numerous scientific fields, presents significant statistical challenges. This chapter addresses these challenges in the context of in…
Coagulation-Fragmentation Duality of Infinitely Exchangeable Partitions from Coupled Mixed Poisson Species Sampling Models
Lancelot F. James
We generalize the celebrated coagulation-fragmentation duality of Pitman (1999), originally established for the PD laws of Pitman and Yor (1997), resolving a two-decade open…
Poisson Hierarchical Indian Buffet Processes-With Indications for Microbiome Species Sampling Models
Lancelot F. James, Juho Lee, Abhinav Pandey
We introduce the Poisson Hierarchical Indian Buffet Process (PHIBP), a new class of species sampling models designed to address the challenges of complex, sparse count data by faci…
Network and interaction models for data with hierarchical granularity via fragmentation and coagulation
Lancelot F. James, Juho Lee, Nathan Ross
We introduce a nested family of Bayesian nonparametric models for network and interaction data with a hierarchical granularity structure that naturally arises through finer and coa…
Modelling financial volume curves with hierarchical Poisson processes
Creighton Heaukulani, Abhinav Pandey, Lancelot F. James
Modeling the trading volume curves of financial instruments throughout the day is of key interest in financial trading applications. Predictions of these so-called volume profiles…
Bayesian Analysis of Generalized Hierarchical Indian Buffet Processes for Within and Across Group Sharing of Latent Features
Lancelot Fitzgerald James, Juho Lee, Abhinav Pandey
Bayesian nonparametric hierarchical priors are highly effective in providing flexible models for latent data structures exhibiting sharing of information within and across groups.…
Poisson calculus for spatial neutral to the right processes
Lancelot F. James
Neutral to the right (NTR) processes were introduced by Doksum in 1974 as Bayesian priors on the class of distributions on the real line. Since that time there have been numerous a…