Search Results for author: Xiatian Zhang

Found 6 papers, 4 papers with code

Pose-based Tremor Type and Level Analysis for Parkinson's Disease from Video

no code implementations21 Dec 2023 Haozheng Zhang, Edmond S. L. Ho, Xiatian Zhang, Silvia Del Din, Hubert P. H. Shum

The accuracy of diagnosis ranges between 73% and 84%, and is influenced by the experience of the clinical assessor.

Single Particle Analysis

Correlation-Distance Graph Learning for Treatment Response Prediction from rs-fMRI

1 code implementation17 Nov 2023 Xiatian Zhang, Sisi Zheng, Hubert P. H. Shum, Haozheng Zhang, Nan Song, Mingkang Song, Hongxiao Jia

To overcome that, we propose a graph learning framework that captures comprehensive features by integrating both correlation and distance-based similarity measures under a contrastive loss.

Graph Learning

Towards Graph Representation Learning Based Surgical Workflow Anticipation

1 code implementation7 Aug 2022 Xiatian Zhang, Noura Al Moubayed, Hubert P. H. Shum

Hence, we propose a graph representation learning framework to comprehensively represent instrument motions in the surgical workflow anticipation problem.

Graph Representation Learning

Pose-based Tremor Classification for Parkinson's Disease Diagnosis from Video

1 code implementation14 Jul 2022 Haozheng Zhang, Edmond S. L. Ho, Xiatian Zhang, Hubert P. H. Shum

To this end, we propose to classify Parkinson's tremor since it is one of the most predominant symptoms of PD with strong generalizability.

Decision Making

Distributed Learning with Low Communication Cost via Gradient Boosting Untrained Neural Network

no code implementations10 Nov 2020 Xiatian Zhang, Xunshi He, Nan Wang, Rong Chen

For high-dimensional data, there are huge communication costs for distributed GBDT because the communication volume of GBDT is related to the number of features.

Federated Learning

Greedy Step Averaging: A parameter-free stochastic optimization method

1 code implementation11 Nov 2016 Xiatian Zhang, Fan Yao, Yongjun Tian

In this paper we present the greedy step averaging(GSA) method, a parameter-free stochastic optimization algorithm for a variety of machine learning problems.

Stochastic Optimization

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