Search Results for author: Donald K. K. Lee

Found 5 papers, 2 papers with code

BoXHED: Boosted eXact Hazard Estimator with Dynamic covariates

1 code implementation ICML 2020 Xiaochen Wang, Arash Pakbin, Bobak J. Mortazavi, Hongyu Zhao, Donald K. K. Lee

BoXHED 1. 0 is a novel tree-based implementation of the generic estimator proposed in Lee, Chen, Ishwaran (2017), which was designed for handling time-dependent covariates in a fully nonparametric manner.

Open-Ended Question Answering Survival Analysis

Boosted nonparametric hazards with time-dependent covariates

no code implementations27 Jan 2017 Donald K. K. Lee, Ningyuan Chen, Hemant Ishwaran

Given functional data from a survival process with time-dependent covariates, we derive a smooth convex representation for its nonparametric log-likelihood functional and obtain its functional gradient.

Super-resolution estimation of cyclic arrival rates

no code implementations30 Oct 2016 Ningyuan Chen, Donald K. K. Lee, Sahand Negahban

Exploiting the fact that most arrival processes exhibit cyclic behaviour, we propose a simple procedure for estimating the intensity of a nonhomogeneous Poisson process.

Super-Resolution

Cannot find the paper you are looking for? You can Submit a new open access paper.