Search Results for author: Kexin Jin

Found 6 papers, 3 papers with code

DSGD-CECA: Decentralized SGD with Communication-Optimal Exact Consensus Algorithm

1 code implementation1 Jun 2023 Lisang Ding, Kexin Jin, Bicheng Ying, Kun Yuan, Wotao Yin

Their communication, governed by the communication topology and gossip weight matrices, facilitates the exchange of model updates.

Subsampling Error in Stochastic Gradient Langevin Diffusions

no code implementations23 May 2023 Kexin Jin, ChenGuang Liu, Jonas Latz

Indeed, we introduce and study the Stochastic Gradient Langevin Diffusion (SGLDiff), a continuous-time Markov process that follows the Langevin diffusion corresponding to a data subset and switches this data subset after exponential waiting times.

AdaNPC: Exploring Non-Parametric Classifier for Test-Time Adaptation

1 code implementation25 Apr 2023 Yi-Fan Zhang, Xue Wang, Kexin Jin, Kun Yuan, Zhang Zhang, Liang Wang, Rong Jin, Tieniu Tan

In particular, when the adaptation target is a series of domains, the adaptation accuracy of AdaNPC is 50% higher than advanced TTA methods.

Domain Generalization Test-time Adaptation

Communication-Efficient Topologies for Decentralized Learning with $O(1)$ Consensus Rate

1 code implementation14 Oct 2022 Zhuoqing Song, Weijian Li, Kexin Jin, Lei Shi, Ming Yan, Wotao Yin, Kun Yuan

In the proposed family, EquiStatic has a degree of $\Theta(\ln(n))$, where $n$ is the network size, and a series of time-dependent one-peer topologies, EquiDyn, has a constant degree of 1.

Losing momentum in continuous-time stochastic optimisation

no code implementations8 Sep 2022 Kexin Jin, Jonas Latz, ChenGuang Liu, Alessandro Scagliotti

This model is a piecewise-deterministic Markov process that represents the particle movement by an underdamped dynamical system and the data subsampling through a stochastic switching of the dynamical system.

Image Classification

A Continuous-time Stochastic Gradient Descent Method for Continuous Data

no code implementations7 Dec 2021 Kexin Jin, Jonas Latz, ChenGuang Liu, Carola-Bibiane Schönlieb

Optimization problems with continuous data appear in, e. g., robust machine learning, functional data analysis, and variational inference.

Stochastic Optimization Variational Inference

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