Search Results for author: Chengyin Li

Found 10 papers, 6 papers with code

FedDRO: Federated Compositional Optimization for Distributionally Robust Learning

no code implementations21 Nov 2023 Prashant Khanduri, Chengyin Li, Rafi Ibn Sultan, Yao Qiang, Joerg Kliewer, Dongxiao Zhu

A key novelty of our work is to develop solution accuracy-independent algorithms that do not require large batch gradients (and function evaluations) for solving federated CO problems.

Federated Learning

Interpretability-Aware Vision Transformer

1 code implementation14 Sep 2023 Yao Qiang, Chengyin Li, Prashant Khanduri, Dongxiao Zhu

Furthermore, if ViTs are not properly trained with the given data and do not prioritize the region of interest, the {\it post hoc} methods would be less effective.

Image Classification

Auto-Prompting SAM for Mobile Friendly 3D Medical Image Segmentation

no code implementations28 Aug 2023 Chengyin Li, Prashant Khanduri, Yao Qiang, Rafi Ibn Sultan, Indrin Chetty, Dongxiao Zhu

In addition to the domain gaps between natural and medical images, disparities in the spatial arrangement between 2D and 3D images, the substantial computational burden imposed by powerful GPU servers, and the time-consuming manual prompt generation impede the extension of SAM to a broader spectrum of medical image segmentation applications.

Image Segmentation Medical Image Segmentation +3

Fairness-aware Vision Transformer via Debiased Self-Attention

no code implementations31 Jan 2023 Yao Qiang, Chengyin Li, Prashant Khanduri, Dongxiao Zhu

Importantly, our DSA framework leads to improved fairness guarantees over prior works on multiple prediction tasks without compromising target prediction performance.

Fairness

Negative Flux Aggregation to Estimate Feature Attributions

1 code implementation17 Jan 2023 Xin Li, Deng Pan, Chengyin Li, Yao Qiang, Dongxiao Zhu

There are increasing demands for understanding deep neural networks' (DNNs) behavior spurred by growing security and/or transparency concerns.

Coupling User Preference with External Rewards to Enable Driver-centered and Resource-aware EV Charging Recommendation

1 code implementation23 Oct 2022 Chengyin Li, Zheng Dong, Nathan Fisher, Dongxiao Zhu

Electric Vehicle (EV) charging recommendation that both accommodates user preference and adapts to the ever-changing external environment arises as a cost-effective strategy to alleviate the range anxiety of private EV drivers.

FocalUNETR: A Focal Transformer for Boundary-aware Segmentation of CT Images

1 code implementation6 Oct 2022 Chengyin Li, Yao Qiang, Rafi Ibn Sultan, Hassan Bagher-Ebadian, Prashant Khanduri, Indrin J. Chetty, Dongxiao Zhu

Computed Tomography (CT) based precise prostate segmentation for treatment planning is challenging due to (1) the unclear boundary of the prostate derived from CT's poor soft tissue contrast and (2) the limitation of convolutional neural network-based models in capturing long-range global context.

Computed Tomography (CT) Image Segmentation +2

Saliency Guided Adversarial Training for Learning Generalizable Features with Applications to Medical Imaging Classification System

no code implementations9 Sep 2022 Xin Li, Yao Qiang, Chengyin Li, Sijia Liu, Dongxiao Zhu

We hypothesize that adversarial training can eliminate shortcut features whereas saliency guided training can filter out non-relevant features; both are nuisance features accounting for the performance degradation on OOD test sets.

COVID-MobileXpert: On-Device COVID-19 Patient Triage and Follow-up using Chest X-rays

1 code implementation6 Apr 2020 Xin Li, Chengyin Li, Dongxiao Zhu

We design and implement a novel three-player knowledge transfer and distillation (KTD) framework including a pre-trained attending physician (AP) network that extracts CXR imaging features from a large scale of lung disease CXR images, a fine-tuned resident fellow (RF) network that learns the essential CXR imaging features to discriminate COVID-19 from pneumonia and/or normal cases with a small amount of COVID-19 cases, and a trained lightweight medical student (MS) network to perform on-device COVID-19 patient triage and follow-up.

Computed Tomography (CT) Trajectory Prediction +1

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