Search Results for author: Tian Liu

Found 23 papers, 0 papers with code

Learning using granularity statistical invariants for classification

no code implementations29 Mar 2024 Ting-Ting Zhu, Yuan-Hai Shao, Chun-Na Li, Tian Liu

Learning using statistical invariants (LUSI) is a new learning paradigm, which adopts weak convergence mechanism, and can be applied to a wider range of classification problems.

Classification

The Neglected Tails of Vision-Language Models

no code implementations23 Jan 2024 Shubham Parashar, Zhiqiu Lin, Tian Liu, Xiangjue Dong, Yanan Li, Deva Ramanan, James Caverlee, Shu Kong

We address this by using large language models (LLMs) to count the number of pretraining texts that contain synonyms of these concepts.

Retrieval Zero-Shot Learning

Technical Report: On the Convergence of Gossip Learning in the Presence of Node Inaccessibility

no code implementations17 Jan 2024 Tian Liu, Yue Cui, Xueyang Hu, Yecheng Xu, Bo Liu

In this paper, we formulate and investigate the impact of inaccessible nodes to GL under a dynamic network topology.

Federated Learning

Cross-Shaped Windows Transformer with Self-supervised Pretraining for Clinically Significant Prostate Cancer Detection in Bi-parametric MRI

no code implementations30 Apr 2023 Yuheng Li, Jacob Wynne, Jing Wang, Richard L. J. Qiu, Justin Roper, Shaoyan Pan, Ashesh B. Jani, Tian Liu, Pretesh R. Patel, Hui Mao, Xiaofeng Yang

We introduce a novel end-to-end Cross-Shaped windows (CSwin) transformer UNet model, CSwin UNet, to detect clinically significant prostate cancer (csPCa) in prostate bi-parametric MR imaging (bpMRI) and demonstrate the effectiveness of our proposed self-supervised pre-training framework.

Self-Supervised Learning

Cycle-guided Denoising Diffusion Probability Model for 3D Cross-modality MRI Synthesis

no code implementations28 Apr 2023 Shaoyan Pan, Chih-Wei Chang, Junbo Peng, Jiahan Zhang, Richard L. J. Qiu, Tonghe Wang, Justin Roper, Tian Liu, Hui Mao, Xiaofeng Yang

The two DDPMs exchange random latent noise in the reverse processes, which helps to regularize both DDPMs and generate matching images in two modalities.

Denoising Image-to-Image Translation

Deep Learning-based Multi-Organ CT Segmentation with Adversarial Data Augmentation

no code implementations25 Feb 2023 Shaoyan Pan, Shao-Yuan Lo, Min Huang, Chaoqiong Ma, Jacob Wynne, Tonghe Wang, Tian Liu, Xiaofeng Yang

In this work, we propose an adversarial attack-based data augmentation method to improve the deep-learning-based segmentation algorithm for the delineation of Organs-At-Risk (OAR) in abdominal Computed Tomography (CT) to facilitate radiation therapy.

Adversarial Attack Computed Tomography (CT) +3

Landmark Tracking in Liver US images Using Cascade Convolutional Neural Networks with Long Short-Term Memory

no code implementations14 Sep 2022 Yupei Zhang, Xianjin Dai, Zhen Tian, Yang Lei, Jacob F. Wynne, Pretesh Patel, Yue Chen, Tian Liu, Xiaofeng Yang

We further tested the proposed model on 69 landmarks from the testing dataset that has a similar image pattern to the training pattern, resulting in a mean tracking error of 0. 94+/-0. 83 mm.

Landmark Tracking regression

Deformable Image Registration using Unsupervised Deep Learning for CBCT-guided Abdominal Radiotherapy

no code implementations29 Aug 2022 Huiqiao Xie, Yang Lei, Yabo Fu, Tonghe Wang, Justin Roper, Jeffrey D. Bradley, Pretesh Patel, Tian Liu, Xiaofeng Yang

The STN consists of a global generative adversarial network (GlobalGAN) and a local GAN (LocalGAN) to predict the coarse- and fine-scale motions, respectively.

Anatomy Generative Adversarial Network +1

Technical Report: Assisting Backdoor Federated Learning with Whole Population Knowledge Alignment

no code implementations25 Jul 2022 Tian Liu, Xueyang Hu, Tao Shu

Single-shot backdoor attack achieves high accuracy on both the main task and backdoor sub-task when injected at the FL model convergence.

Backdoor Attack Federated Learning +1

Reinforcement Learning in Medical Image Analysis: Concepts, Applications, Challenges, and Future Directions

no code implementations28 Jun 2022 Mingzhe Hu, Jiahan Zhang, Luke Matkovic, Tian Liu, Xiaofeng Yang

Compared to the enormous deployments of supervised and unsupervised learning models, attempts to use reinforcement learning in medical image analysis are scarce.

reinforcement-learning Reinforcement Learning (RL)

FedCAT: Towards Accurate Federated Learning via Device Concatenation

no code implementations23 Feb 2022 Ming Hu, Tian Liu, Zhiwei Ling, Zhihao Yue, Mingsong Chen

As a promising distributed machine learning paradigm, Federated Learning (FL) enables all the involved devices to train a global model collaboratively without exposing their local data privacy.

Federated Learning

Towards Fast and Accurate Federated Learning with non-IID Data for Cloud-Based IoT Applications

no code implementations29 Jan 2022 Tian Liu, Jiahao Ding, Ting Wang, Miao Pan, Mingsong Chen

However, since our grouping method is based on the similarity of extracted feature maps from IoT devices, it may incur additional risks of privacy exposure.

Federated Learning

Efficient Federated Learning for AIoT Applications Using Knowledge Distillation

no code implementations29 Nov 2021 Tian Liu, Zhiwei Ling, Jun Xia, Xin Fu, Shui Yu, Mingsong Chen

Inspired by Knowledge Distillation (KD) that can increase the model accuracy, our approach adds the soft targets used by KD to the FL model training, which occupies negligible network resources.

Federated Learning Knowledge Distillation

Deep Learning Based Antenna-time Domain Channel Extrapolation for Hybrid mmWave Massive MIMO

no code implementations9 Aug 2021 Shunbo Zhang, Shun Zhang, Jianpeng Ma, Tian Liu, Octavia A. Dobre

We design a latent ordinary differential equation (ODE)-based network under the variational auto-encoder (VAE) framework to learn the mapping function from the partial uplink channels to the full downlink ones at the BS side.

FDA3 : Federated Defense Against Adversarial Attacks for Cloud-Based IIoT Applications

no code implementations28 Jun 2020 Yunfei Song, Tian Liu, Tongquan Wei, Xiangfeng Wang, Zhe Tao, Mingsong Chen

Along with the proliferation of Artificial Intelligence (AI) and Internet of Things (IoT) techniques, various kinds of adversarial attacks are increasingly emerging to fool Deep Neural Networks (DNNs) used by Industrial IoT (IIoT) applications.

Federated Learning

Machine Learning in Quantitative PET Imaging

no code implementations18 Jan 2020 Tonghe Wang, Yang Lei, Yabo Fu, Walter J. Curran, Tian Liu, Xiaofeng Yang

This paper reviewed the machine learning-based studies for quantitative positron emission tomography (PET).

BIG-bench Machine Learning

Deep Learning in Medical Image Registration: A Review

no code implementations27 Dec 2019 Yabo Fu, Yang Lei, Tonghe Wang, Walter J. Curran, Tian Liu, Xiaofeng Yang

Lastly, we analyzed the statistics of all the cited works from various aspects, revealing the popularity and future trend of development in medical image registration using deep learning.

Image Registration Medical Image Registration

Feature Fusion Use Unsupervised Prior Knowledge to Let Small Object Represent

no code implementations17 Dec 2019 Tian Liu, Li-Chun Wang, Shaofan Wang

Fusing low level and high level features is a widely used strategy to provide details that might be missing during convolution and pooling.

Adversarial FDI Attack against AC State Estimation with ANN

no code implementations26 Jun 2019 Tian Liu, Tao Shu

Artificial neural network (ANN) provides superior accuracy for nonlinear alternating current (AC) state estimation (SE) in smart grid over traditional methods.

A New Probabilistic Algorithm for Approximate Model Counting

no code implementations13 Jun 2017 Cunjing Ge, Feifei Ma, Tian Liu, Jian Zhang

Constrained counting is important in domains ranging from artificial intelligence to software analysis.

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