Search Results for author: Alan Q. Wang

Found 10 papers, 9 papers with code

Robust Learning via Conditional Prevalence Adjustment

1 code implementation24 Oct 2023 Minh Nguyen, Alan Q. Wang, Heejong Kim, Mert R. Sabuncu

CoPA assumes that (1) generation mechanism is stable, i. e. label Y and confounding variable(s) Z generate X, and (2) the unstable conditional prevalence in each site E fully accounts for the unstable correlations between X and Y .

A Framework for Interpretability in Machine Learning for Medical Imaging

no code implementations2 Oct 2023 Alan Q. Wang, Batuhan K. Karaman, Heejong Kim, Jacob Rosenthal, Rachit Saluja, Sean I. Young, Mert R. Sabuncu

To answer these questions, we identify a need to formalize the goals and elements of interpretability in MLMI.

A Robust and Interpretable Deep Learning Framework for Multi-modal Registration via Keypoints

2 code implementations19 Apr 2023 Alan Q. Wang, Evan M. Yu, Adrian V. Dalca, Mert R. Sabuncu

Our core insight which addresses these shortcomings is that corresponding keypoints between images can be used to obtain the optimal transformation via a differentiable closed-form expression.

Image Registration

A Flexible Nadaraya-Watson Head Can Offer Explainable and Calibrated Classification

1 code implementation7 Dec 2022 Alan Q. Wang, Mert R. Sabuncu

The first is the label weights, and the second is our novel concept of the ``support influence function,'' which is an easy-to-compute metric that quantifies the influence of a support element on the prediction for a given query.

Computing Multiple Image Reconstructions with a Single Hypernetwork

2 code implementations22 Feb 2022 Alan Q. Wang, Adrian V. Dalca, Mert R. Sabuncu

The typical approach is to train the model for a hyperparameter setting determined with some empirical or theoretical justification.

Denoising Image Reconstruction +1

Hyper-Convolutions via Implicit Kernels for Medical Imaging

1 code implementation6 Feb 2022 Tianyu Ma, Alan Q. Wang, Adrian V. Dalca, Mert R. Sabuncu

The key building block of a CNN is the convolutional kernel that aggregates information from the pixel neighborhood and shares weights across all pixels.

Joint Optimization of Hadamard Sensing and Reconstruction in Compressed Sensing Fluorescence Microscopy

1 code implementation17 May 2021 Alan Q. Wang, Aaron K. LaViolette, Leo Moon, Chris Xu, Mert R. Sabuncu

Compressed sensing fluorescence microscopy (CS-FM) proposes a scheme whereby less measurements are collected during sensing and reconstruction is performed to recover the image.

regression

Regularization-Agnostic Compressed Sensing MRI Reconstruction with Hypernetworks

2 code implementations6 Jan 2021 Alan Q. Wang, Adrian V. Dalca, Mert R. Sabuncu

In this paper, we explore a novel strategy of using a hypernetwork to generate the parameters of a separate reconstruction network as a function of the regularization weight(s), resulting in a regularization-agnostic reconstruction model.

MRI Reconstruction

Neural Network-based Reconstruction in Compressed Sensing MRI Without Fully-sampled Training Data

1 code implementation29 Jul 2020 Alan Q. Wang, Adrian V. Dalca, Mert R. Sabuncu

In this paper, we explore a novel strategy to train an unrolled reconstruction network in an unsupervised fashion by adopting a loss function widely-used in classical optimization schemes.

Rolling Shutter Correction

Deep-learning-based Optimization of the Under-sampling Pattern in MRI

1 code implementation26 Jul 2019 Cagla D. Bahadir, Alan Q. Wang, Adrian V. Dalca, Mert R. Sabuncu

In our experiments, we demonstrate that LOUPE-optimized under-sampling masks are data-dependent, varying significantly with the imaged anatomy, and perform well with different reconstruction methods.

Anatomy

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