Výsledky vyhledávání - "Kelly, Luke J."

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TraitLab: a Matlab package for fitting and simulating binary tree-like data

Autor: Kelly, Luke J., Nicholls, Geoff K., Ryder, Robin J., Welch, David

TraitLab is a software package for simulating, fitting and analysing tree-like binary data under a stochastic Dollo model of evolution. The model also allows for rate heterogeneity through catastrophes, evolutionary events where many traits are simul

Externí odkaz: http://arxiv.org/abs/2308.09060

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Lagged couplings diagnose Markov chain Monte Carlo phylogenetic inference

Autor: Kelly, Luke J., Ryder, Robin J., Clarté, Grégoire

Phylogenetic inference is an intractable statistical problem on a complex space. Markov chain Monte Carlo methods are the primary tool for Bayesian phylogenetic inference but it is challenging to construct efficient schemes to explore the associated

Externí odkaz: http://arxiv.org/abs/2108.13328

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Deep Generative Pattern-Set Mixture Models for Nonignorable Missingness

Autor: Ghalebikesabi, Sahra, Cornish, Rob, Kelly, Luke J., Holmes, Chris

Publikováno v: International Conference on Artificial Intelligence and Statistics (AISTATS) 2021

We propose a variational autoencoder architecture to model both ignorable and nonignorable missing data using pattern-set mixtures as proposed by Little (1993). Our model explicitly learns to cluster the missing data into missingness pattern sets bas

Externí odkaz: http://arxiv.org/abs/2103.03532

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Sequential knockoffs for continuous and categorical predictors: with application to a large Psoriatic Arthritis clinical trial pool

Autor: Kormaksson, Matthias, Kelly, Luke J., Zhu, Xuan, Haemmerle, Sibylle, Pricop, Luminita, Ohlssen, David

Knockoffs provide a general framework for controlling the false discovery rate when performing variable selection. Much of the Knockoffs literature focuses on theoretical challenges and we recognize a need for bringing some of the current ideas into

Externí odkaz: http://arxiv.org/abs/2010.14026

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Lateral transfer in Stochastic Dollo models

Autor: Kelly, Luke J., Nicholls, Geoff K.

Lateral transfer, a process whereby species exchange evolutionary traits through non-ancestral relationships, is a frequent source of model misspecification in phylogenetic inference. Lateral transfer obscures the phylogenetic signal in the data as t

Externí odkaz: http://arxiv.org/abs/1601.07931

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