Search Results for author: Shijie Liu

Found 12 papers, 5 papers with code

It's Simplex! Disaggregating Measures to Improve Certified Robustness

no code implementations20 Sep 2023 Andrew C. Cullen, Paul Montague, Shijie Liu, Sarah M. Erfani, Benjamin I. P. Rubinstein

Certified robustness circumvents the fragility of defences against adversarial attacks, by endowing model predictions with guarantees of class invariance for attacks up to a calculated size.

MEMD-ABSA: A Multi-Element Multi-Domain Dataset for Aspect-Based Sentiment Analysis

1 code implementation29 Jun 2023 Hongjie Cai, Nan Song, Zengzhi Wang, Qiming Xie, Qiankun Zhao, Ke Li, Siwei Wu, Shijie Liu, Jianfei Yu, Rui Xia

Aspect-based sentiment analysis is a long-standing research interest in the field of opinion mining, and in recent years, researchers have gradually shifted their focus from simple ABSA subtasks to end-to-end multi-element ABSA tasks.

Aspect-Based Sentiment Analysis Opinion Mining +1

Dual Residual Attention Network for Image Denoising

1 code implementation7 May 2023 Wencong Wu, Shijie Liu, Yi Zhou, Yungang Zhang, Yu Xiang

The proposed DRANet includes two different parallel branches, which can capture complementary features to enhance the learning ability of the model.

 Ranked #1 on Image Denoising on SIDD (Average PSNR metric)

Image Denoising

Et Tu Certifications: Robustness Certificates Yield Better Adversarial Examples

no code implementations9 Feb 2023 Andrew C. Cullen, Shijie Liu, Paul Montague, Sarah M. Erfani, Benjamin I. P. Rubinstein

In guaranteeing the absence of adversarial examples in an instance's neighbourhood, certification mechanisms play an important role in demonstrating neural net robustness.

Double Bubble, Toil and Trouble: Enhancing Certified Robustness through Transitivity

1 code implementation12 Oct 2022 Andrew C. Cullen, Paul Montague, Shijie Liu, Sarah M. Erfani, Benjamin I. P. Rubinstein

In response to subtle adversarial examples flipping classifications of neural network models, recent research has promoted certified robustness as a solution.

Open-Ended Question Answering

Transformer for Polyp Detection

no code implementations14 Oct 2021 Shijie Liu, HongYu Zhou, Xiaozhou Shi, Junwen Pan

In recent years, as the Transformer has performed increasingly well on NLP tasks, many researchers have ported the Transformer structure to vision tasks , bridging the gap between NLP and CV tasks.

Improving Robustness with Optimal Transport based Adversarial Generalization

no code implementations29 Sep 2021 Siqi Xia, Shijie Liu, Trung Le, Dinh Phung, Sarah Erfani, Benjamin I. P. Rubinstein, Christopher Leckie, Paul Montague

More specifically, by minimizing the WS distance of interest, an adversarial example is pushed toward the cluster of benign examples sharing the same label on the latent space, which helps to strengthen the generalization ability of the classifier on the adversarial examples.

TableSense: Spreadsheet Table Detection with Convolutional Neural Networks

1 code implementation25 Jun 2021 Haoyu Dong, Shijie Liu, Shi Han, Zhouyu Fu, Dongmei Zhang

Spreadsheet table detection is the task of detecting all tables on a given sheet and locating their respective ranges.

Active Learning Boundary Detection +1

NameRec*: Highly Accurate and Fine-grained Person Name Recognition

no code implementations21 Mar 2021 Rui Zhang, Yimeng Dai, Shijie Liu

However, there are rapidly growing scenarios where sentences are of incomplete syntax and names are in various forms such as user-generated contents and academic homepages.

Implicit Relations named-entity-recognition +3

Semantic Structure Extraction for Spreadsheet Tables with a Multi-task Learning Architecture

no code implementations NeurIPS Workshop Document_Intelligen 2019 Haoyu Dong, Shijie Liu, Zhouyu Fu, Shi Han, Dongmei Zhang

To learn spatial correlations and capture semantics on spreadsheets, we have developed a novel learning-based framework for spreadsheet semantic structure extraction.

Language Modelling Multi-Task Learning

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