Search Results for author: Ken C. L. Wong

Found 18 papers, 4 papers with code

FNOSeg3D: Resolution-Robust 3D Image Segmentation with Fourier Neural Operator

1 code implementation5 Oct 2023 Ken C. L. Wong, Hongzhi Wang, Tanveer Syeda-Mahmood

Due to the computational complexity of 3D medical image segmentation, training with downsampled images is a common remedy for out-of-memory errors in deep learning.

Image Segmentation Medical Image Segmentation +2

HartleyMHA: Self-Attention in Frequency Domain for Resolution-Robust and Parameter-Efficient 3D Image Segmentation

1 code implementation5 Oct 2023 Ken C. L. Wong, Hongzhi Wang, Tanveer Syeda-Mahmood

With the introduction of Transformers, different attention-based models have been proposed for image segmentation with promising results.

Image Segmentation Semantic Segmentation +1

3D Segmentation with Fully Trainable Gabor Kernels and Pearson's Correlation Coefficient

1 code implementation10 Jan 2022 Ken C. L. Wong, Mehdi Moradi

For existing loss functions for multi-class image segmentation, there is usually a tradeoff among accuracy, robustness to hyperparameters, and manual weight selections for combining different losses.

Image Segmentation Semantic Segmentation

Addressing Deep Learning Model Uncertainty in Long-Range Climate Forecasting with Late Fusion

no code implementations10 Dec 2021 Ken C. L. Wong, Hongzhi Wang, Etienne E. Vos, Bianca Zadrozny, Campbell D. Watson, Tanveer Syeda-Mahmood

Global warming leads to the increase in frequency and intensity of climate extremes that cause tremendous loss of lives and property.

Management

Basis Scaling and Double Pruning for Efficient Inference in Network-Based Transfer Learning

no code implementations6 Aug 2021 Ken C. L. Wong, Satyananda Kashyap, Mehdi Moradi

Network-based transfer learning allows the reuse of deep learning features with limited data, but the resulting models can be unnecessarily large.

Network Pruning Transfer Learning

Channel Scaling: A Scale-and-Select Approach for Transfer Learning

no code implementations22 Mar 2021 Ken C. L. Wong, Satyananda Kashyap, Mehdi Moradi

By imposing L1 regularization and thresholding on the scaling weights, this framework iteratively removes unnecessary feature channels from a pre-trained model.

Transfer Learning

Chest X-ray Report Generation through Fine-Grained Label Learning

no code implementations27 Jul 2020 Tanveer Syeda-Mahmood, Ken C. L. Wong, Yaniv Gur, Joy T. Wu, Ashutosh Jadhav, Satyananda Kashyap, Alexandros Karargyris, Anup Pillai, Arjun Sharma, Ali Bin Syed, Orest Boyko, Mehdi Moradi

Obtaining automated preliminary read reports for common exams such as chest X-rays will expedite clinical workflows and improve operational efficiencies in hospitals.

Boosting the rule-out accuracy of deep disease detection using class weight modifiers

no code implementations21 Jun 2019 Alexandros Karargyris, Ken C. L. Wong, Joy T. Wu, Mehdi Moradi, Tanveer Syeda-Mahmood

We experiment with two different deep neural network architectures and show that the proposed method results in a large improvement in the performance of the classifiers, specially on negated findings.

Identifying disease-free chest X-ray images with deep transfer learning

no code implementations2 Apr 2019 Ken C. L. Wong, Mehdi Moradi, Joy Wu, Tanveer Syeda-Mahmood

In this work, we report a deep neural network trained for classifying CXRs with the goal of identifying a large number of normal (disease-free) images without risking the discharge of sick patients.

Transfer Learning

3D Segmentation with Exponential Logarithmic Loss for Highly Unbalanced Object Sizes

1 code implementation31 Aug 2018 Ken C. L. Wong, Mehdi Moradi, Hui Tang, Tanveer Syeda-Mahmood

In this paper, we propose a network architecture and the corresponding loss function which improve segmentation of very small structures.

Brain Segmentation Image Segmentation +2

Building medical image classifiers with very limited data using segmentation networks

no code implementations15 Aug 2018 Ken C. L. Wong, Tanveer Syeda-Mahmood, Mehdi Moradi

Deep learning has shown promising results in medical image analysis, however, the lack of very large annotated datasets confines its full potential.

Classification General Classification +1

Building Disease Detection Algorithms with Very Small Numbers of Positive Samples

no code implementations7 May 2018 Ken C. L. Wong, Alexandros Karargyris, Tanveer Syeda-Mahmood, Mehdi Moradi

We train a discriminative segmentation model only on normal images to provide a source of knowledge to be transferred to a disease detection classifier.

Anatomy Classification +2

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