Search Results for author: Guo-Qiang Zhang

Found 12 papers, 2 papers with code

Cross-Vendor CT Image Data Harmonization Using CVH-CT

no code implementations19 Oct 2021 Md Selim, Jie Zhang, Baowei Fei, Guo-Qiang Zhang, Gary Yeeming Ge, Jin Chen

We propose a novel deep learning approach called CVH-CT for harmonizing CT images captured using scanners from different vendors.

Computed Tomography (CT)

CT Image Harmonization for Enhancing Radiomics Studies

no code implementations3 Jul 2021 Md Selim, Jie Zhang, Baowei Fei, Guo-Qiang Zhang, Jin Chen

While remarkable advances have been made in Computed Tomography (CT), capturing CT images with non-standardized protocols causes low reproducibility regarding radiomic features, forming a barrier on CT image analysis in a large scale.

Computed Tomography (CT) Image Harmonization

STAN-CT: Standardizing CT Image using Generative Adversarial Network

1 code implementation2 Apr 2020 Md. Selim, Jie Zhang, Baowei Fei, Guo-Qiang Zhang, Jin Chen

Computed tomography (CT) plays an important role in lung malignancy diagnostics and therapy assessment and facilitating precision medicine delivery.

Computed Tomography (CT) Generative Adversarial Network

GPCA: A Probabilistic Framework for Gaussian Process Embedded Channel Attention

1 code implementation10 Mar 2020 Jiyang Xie, Dongliang Chang, Zhanyu Ma, Guo-Qiang Zhang, Jun Guo

In this paper, we propose Gaussian process embedded channel attention (GPCA) module and further interpret the channel attention schemes in a probabilistic way.

Image Classification

Approximated Orthonormal Normalisation in Training Neural Networks

no code implementations21 Nov 2019 Guo-Qiang Zhang, Kenta Niwa, W. B. Kleijn

Considering a weight matrix W from a particular neural layer in the model, our objective is to design a function h(W) such that its row vectors are approximately orthogonal to each other while allowing the DNN model to fit the training data sufficiently accurate.

Automated Classification of Seizures against Nonseizures: A Deep Learning Approach

no code implementations5 Jun 2019 Xinghua Yao, Qiang Cheng, Guo-Qiang Zhang

In order to capture essential seizure features, this paper integrates an emerging deep learning model, the independently recurrent neural network (IndRNN), with a dense structure and an attention mechanism to exploit temporal and spatial discriminating features and overcome seizure variabilities.

Classification EEG +2

Combining Representation Learning with Tensor Factorization for Risk Factor Analysis - an application to Epilepsy and Alzheimer's disease

no code implementations14 May 2019 Xiaoqian Jiang, Samden Lhatoo, Guo-Qiang Zhang, Luyao Chen, Yejin Kim

Existing studies consider Alzheimer's disease (AD) a comorbidity of epilepsy, but also recognize epilepsy to occur more frequently in patients with AD than those without.

Representation Learning

A Novel Independent RNN Approach to Classification of Seizures against Non-seizures

no code implementations22 Mar 2019 Xinghua Yao, Qiang Cheng, Guo-Qiang Zhang

In current clinical practices, electroencephalograms (EEG) are reviewed and analyzed by trained neurologists to provide supports for therapeutic decisions.

Classification EEG +1

Rapidly Adapting Moment Estimation

no code implementations24 Feb 2019 Guo-Qiang Zhang, Kenta Niwa, W. Bastiaan Kleijn

Adaptive gradient methods such as Adam have been shown to be very effective for training deep neural networks (DNNs) by tracking the second moment of gradients to compute the individual learning rates.

BALSON: Bayesian Least Squares Optimization with Nonnegative L1-Norm Constraint

no code implementations8 Jul 2018 Jiyang Xie, Zhanyu Ma, Guo-Qiang Zhang, Jing-Hao Xue, Jen-Tzung Chien, Zhiqing Lin, Jun Guo

In order to explicitly characterize the nonnegative L1-norm constraint of the parameters, we further approximate the true posterior distribution by a Dirichlet distribution.

Training Deep Neural Networks via Optimization Over Graphs

no code implementations11 Feb 2017 Guo-Qiang Zhang, W. Bastiaan Kleijn

In this work, we propose to train a deep neural network by distributed optimization over a graph.

Distributed Optimization

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