Search Results for author: Renbo Zhao

Found 7 papers, 0 papers with code

Fast Learning of Multidimensional Hawkes Processes via Frank-Wolfe

no code implementations12 Dec 2022 Renbo Zhao, Niccolò Dalmasso, Mohsen Ghassemi, Vamsi K. Potluru, Tucker Balch, Manuela Veloso

Hawkes processes have recently risen to the forefront of tools when it comes to modeling and generating sequential events data.

Epidemiology

A Unified Framework for Stochastic Matrix Factorization via Variance Reduction

no code implementations19 May 2017 Renbo Zhao, William B. Haskell, Jiashi Feng

We propose a unified framework to speed up the existing stochastic matrix factorization (SMF) algorithms via variance reduction.

A Unified Convergence Analysis of the Multiplicative Update Algorithm for Regularized Nonnegative Matrix Factorization

no code implementations4 Sep 2016 Renbo Zhao, Vincent Y. F. Tan

The multiplicative update (MU) algorithm has been extensively used to estimate the basis and coefficient matrices in nonnegative matrix factorization (NMF) problems under a wide range of divergences and regularizers.

Online Nonnegative Matrix Factorization with General Divergences

no code implementations30 Jul 2016 Renbo Zhao, Vincent Y. F. Tan, Huan Xu

We develop a unified and systematic framework for performing online nonnegative matrix factorization under a wide variety of important divergences.

Computational Efficiency Image Denoising +1

Online Nonnegative Matrix Factorization with Outliers

no code implementations10 Apr 2016 Renbo Zhao, Vincent Y. F. Tan

We propose a unified and systematic framework for performing online nonnegative matrix factorization in the presence of outliers.

Computational Efficiency Image Denoising +1

Adversarial Top-$K$ Ranking

no code implementations15 Feb 2016 Changho Suh, Vincent Y. F. Tan, Renbo Zhao

We study the top-$K$ ranking problem where the goal is to recover the set of top-$K$ ranked items out of a large collection of items based on partially revealed preferences.

Tensor Decomposition

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