Search Results for author: Jiawen Li

Found 12 papers, 4 papers with code

Neural Implicit Surface Reconstruction for Freehand 3D Ultrasound Volumetric Point Clouds with Geometric Constraints

no code implementations11 Jan 2024 Hongbo Chen, Logiraj Kumaralingam, Edmond H. M. Lou, Kumaradevan Punithakumar, Jiawen Li, Thanh-Tu Pham, Lawrence H. Le, Rui Zheng

In this study, we introduce a self-supervised neural implicit surface reconstruction method to learn the signed distance functions (SDFs) from freehand 3D US volumetric point clouds.

Anatomy Surface Reconstruction

The Whole Pathological Slide Classification via Weakly Supervised Learning

no code implementations12 Jul 2023 Qiehe Sun, Jiawen Li, Jin Xu, Junru Cheng, Tian Guan, Yonghong He

Due to its superior efficiency in utilizing annotations and addressing gigapixel-sized images, multiple instance learning (MIL) has shown great promise as a framework for whole slide image (WSI) classification in digital pathology diagnosis.

Contrastive Learning Data Augmentation +5

Automatic Diagnosis of Carotid Atherosclerosis Using a Portable Freehand 3D Ultrasound Imaging System

no code implementations8 Jan 2023 Jiawen Li, Yunqian Huang, Sheng Song, Hongbo Chen, Junni Shi, Duo Xu, Haibin Zhang, Man Chen, Rui Zheng

A total of 127 3D carotid artery scans were acquired using a portable 3D US system which consisted of a handheld US scanner and an electromagnetic tracking system.

3D Reconstruction Specificity

HIRL: A General Framework for Hierarchical Image Representation Learning

1 code implementation26 May 2022 Minghao Xu, Yuanfan Guo, Xuanyu Zhu, Jiawen Li, Zhenbang Sun, Jian Tang, Yi Xu, Bingbing Ni

This framework aims to learn multiple semantic representations for each image, and these representations are structured to encode image semantics from fine-grained to coarse-grained.

Image Clustering Representation Learning +3

HCSC: Hierarchical Contrastive Selective Coding

2 code implementations CVPR 2022 Yuanfan Guo, Minghao Xu, Jiawen Li, Bingbing Ni, Xuanyu Zhu, Zhenbang Sun, Yi Xu

In this framework, a set of hierarchical prototypes are constructed and also dynamically updated to represent the hierarchical semantic structures underlying the data in the latent space.

Contrastive Learning Representation Learning

True or False: Does the Deep Learning Model Learn to Detect Rumors?

no code implementations1 Dec 2021 Shiwen Ni, Jiawen Li, Hung-Yu Kao

It is difficult for humans to distinguish the true and false of rumors, but current deep learning models can surpass humans and achieve excellent accuracy on many rumor datasets.

Common Sense Reasoning

HAT4RD: Hierarchical Adversarial Training for Rumor Detection on Social Media

no code implementations29 Aug 2021 Shiwen Ni, Jiawen Li, Hung-Yu Kao

As such, the robustness and generalization of the current rumor detection model are put into question.

DropAttack: A Masked Weight Adversarial Training Method to Improve Generalization of Neural Networks

1 code implementation29 Aug 2021 Shiwen Ni, Jiawen Li, Hung-Yu Kao

We compare the proposed method with other adversarial training methods and regularization methods, and our method achieves state-of-the-art on all datasets.

Adversarial Attack Adversarial Defense

Exploiting Microblog Conversation Structures to Detect Rumors

no code implementations COLING 2020 Jiawen Li, Yudianto Sujana, Hung-Yu Kao

Twitter users communicate by replying to other users{'} messages, forming a conversation structure.

valid

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