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Creighton Heaukulani

2 accepted papers

2019

Scalable Bayesian dynamic covariance modeling with variational Wishart and inverse Wishart processes

NeurIPS 2019poster

We implement gradient-based variational inference routines for Wishart and inverse Wishart processes, which we apply as Bayesian models for the dynamic, heteroskedastic covariance matrix of a multivariate time series. The Wishart and inverse Wishart processes are constructed from i.i.d. Gaussian pro…

2017

Bayesian inference on random simple graphs with power law degree distributions

ICML 2017poster

We present a model for random simple graphs with power law (i.e., heavy-tailed) degree distributions. To attain this behavior, the edge probabilities in the graph are constructed from Bertoin–Fujita–Roynette–Yor (BFRY) random variables, which have been recently utilized in Bayesian statistics for th…

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