Search Results for author: Dai Feng

Found 6 papers, 1 papers with code

Target alignment in truncated kernel ridge regression

no code implementations28 Jun 2022 Arash A. Amini, Richard Baumgartner, Dai Feng

We show that for polynomial alignment, there is an \emph{over-aligned} regime, in which TKRR can achieve a faster rate than what is achievable by full KRR.

regression

A Framework for an Assessment of the Kernel-target Alignment in Tree Ensemble Kernel Learning

no code implementations19 Aug 2021 Dai Feng, Richard Baumgartner

Kernels ensuing from tree ensembles such as random forest (RF) or gradient boosted trees (GBT), when used for kernel learning, have been shown to be competitive to their respective tree ensembles (particularly in higher dimensional scenarios).

BDNNSurv: Bayesian deep neural networks for survival analysis using pseudo values

no code implementations7 Jan 2021 Dai Feng, Lili Zhao

There has been increasing interest in modeling survival data using deep learning methods in medical research.

Decision Making Survival Analysis

(Decision and regression) tree ensemble based kernels for regression and classification

no code implementations19 Dec 2020 Dai Feng, Richard Baumgartner

We elucidate the performance and properties of the RF and GBT based kernels in a comprehensive simulation study comprising of continuous and binary targets.

General Classification regression

Random Forest (RF) Kernel for Regression, Classification and Survival

no code implementations31 Aug 2020 Dai Feng, Richard Baumgartner

We elucidate the performance and properties of the data driven RF kernels used by regularized linear models in a comprehensive simulation study comprising of continuous, binary and survival targets.

Classification General Classification +1

DNNSurv: Deep Neural Networks for Survival Analysis Using Pseudo Values

1 code implementation6 Aug 2019 Lili Zhao, Dai Feng

There has been increasing interest in modelling survival data using deep learning methods in medical research.

Survival Analysis

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