Jiansi Gao
@jsigao.bsky.social
Postdoc at Fred Hutch with @matsen.bsky.social. Phylogenetics, phylodynamics, macroevolution, molecular evolution, & Bayesian inference.
Our new MCMC diagnostics reveal that the sampling problems typically stem from a small part of the tree. E.g., in a LASV dataset, removing just two of the 551 sequences reshapes the tree space and effectively resolves the sampling problems. 4/
(Tree space samplers before and after the removal.)
(Tree space samplers before and after the removal.)
June 17, 2025 at 1:25 AM
Our new MCMC diagnostics reveal that the sampling problems typically stem from a small part of the tree. E.g., in a LASV dataset, removing just two of the 551 sequences reshapes the tree space and effectively resolves the sampling problems. 4/
(Tree space samplers before and after the removal.)
(Tree space samplers before and after the removal.)
We are interested in understanding phylodynamic tree landscape and its biological impacts. Here we show that the tree landscape is usually highly rugged, leading to widespread sampling problems. 3/
(MCMC progress in MDS tree space; each panel shows a dataset and each dot represents a tree.)
(MCMC progress in MDS tree space; each panel shows a dataset and each dot represents a tree.)
June 17, 2025 at 1:25 AM
We are interested in understanding phylodynamic tree landscape and its biological impacts. Here we show that the tree landscape is usually highly rugged, leading to widespread sampling problems. 3/
(MCMC progress in MDS tree space; each panel shows a dataset and each dot represents a tree.)
(MCMC progress in MDS tree space; each panel shows a dataset and each dot represents a tree.)