Search Results for author: Qin Liu

Found 21 papers, 10 papers with code

PlugAT: A Plug and Play Module to Defend against Textual Adversarial Attack

no code implementations COLING 2022 Rui Zheng, Rong Bao, Qin Liu, Tao Gui, Qi Zhang, Xuanjing Huang, Rui Xie, Wei Wu

To reduce the potential side effects of using defense modules, we further propose a novel forgetting restricted adversarial training, which filters out bad adversarial examples that impair the performance of original ones.

Adversarial Attack Domain Adaptation +2

Two Heads are Better than One: Nested PoE for Robust Defense Against Multi-Backdoors

no code implementations2 Apr 2024 Victoria Graf, Qin Liu, Muhao Chen

In this paper, we propose Nested Product of Experts(NPoE) defense framework, which involves a mixture of experts (MoE) as a trigger-only ensemble within the PoE defense framework to simultaneously defend against multiple trigger types.

Data Poisoning Hate Speech Detection +1

Rethinking Interactive Image Segmentation with Low Latency, High Quality, and Diverse Prompts

1 code implementation31 Mar 2024 Qin Liu, Jaemin Cho, Mohit Bansal, Marc Niethammer

In light of this, we reintroduce this dense design into the generalist models, to facilitate the development of generalist models with high segmentation quality.

Image Segmentation Interactive Segmentation +2

Monotonic Paraphrasing Improves Generalization of Language Model Prompting

no code implementations24 Mar 2024 Qin Liu, Fei Wang, Nan Xu, Tianyi Yan, Tao Meng, Muhao Chen

In this paper, we propose monotonic paraphrasing (MonoPara), an end-to-end decoding strategy that paraphrases given prompts or instructions into their lower perplexity counterparts based on an ensemble of a paraphrase LM for prompt (or instruction) rewriting, and a target LM (i. e. the prompt or instruction executor) that constrains the generation for lower perplexity.

Language Modelling

Test-time Backdoor Mitigation for Black-Box Large Language Models with Defensive Demonstrations

no code implementations16 Nov 2023 Wenjie Mo, Jiashu Xu, Qin Liu, Jiongxiao Wang, Jun Yan, Chaowei Xiao, Muhao Chen

Existing studies in backdoor defense have predominantly focused on the training phase, overlooking the critical aspect of testing time defense.

backdoor defense

From Shortcuts to Triggers: Backdoor Defense with Denoised PoE

1 code implementation24 May 2023 Qin Liu, Fei Wang, Chaowei Xiao, Muhao Chen

Language models are often at risk of diverse backdoor attacks, especially data poisoning.

backdoor defense Data Poisoning +3

Exploring Cycle Consistency Learning in Interactive Volume Segmentation

1 code implementation11 Mar 2023 Qin Liu, Meng Zheng, Benjamin Planche, Zhongpai Gao, Terrence Chen, Marc Niethammer, Ziyan Wu

Given a medical volume, a user first segments a slice (or several slices) via the interaction module and then propagates the segmentation(s) to the remaining slices.

Segmentation

PseudoClick: Interactive Image Segmentation with Click Imitation

no code implementations12 Jul 2022 Qin Liu, Meng Zheng, Benjamin Planche, Srikrishna Karanam, Terrence Chen, Marc Niethammer, Ziyan Wu

The goal of click-based interactive image segmentation is to obtain precise object segmentation masks with limited user interaction, i. e., by a minimal number of user clicks.

Image Segmentation Segmentation +1

iSegFormer: Interactive Segmentation via Transformers with Application to 3D Knee MR Images

1 code implementation21 Dec 2021 Qin Liu, Zhenlin Xu, Yining Jiao, Marc Niethammer

We propose iSegFormer, a memory-efficient transformer that combines a Swin transformer with a lightweight multilayer perceptron (MLP) decoder.

Image Segmentation Interactive Segmentation +2

SkullEngine: A Multi-stage CNN Framework for Collaborative CBCT Image Segmentation and Landmark Detection

no code implementations7 Oct 2021 Qin Liu, Han Deng, Chunfeng Lian, Xiaoyang Chen, Deqiang Xiao, Lei Ma, Xu Chen, Tianshu Kuang, Jaime Gateno, Pew-Thian Yap, James J. Xia

We propose a multi-stage coarse-to-fine CNN-based framework, called SkullEngine, for high-resolution segmentation and large-scale landmark detection through a collaborative, integrated, and scalable JSD model and three segmentation and landmark detection refinement models.

Image Segmentation Segmentation +1

Towards Robust Active Feature Acquisition

no code implementations9 Jul 2021 Yang Li, Siyuan Shan, Qin Liu, Junier B. Oliva

Our framework can easily handle a large number of features using a hierarchical acquisition policy and is more robust to OOD inputs with the help of an OOD detector for partially observed data.

valid

Deep Learning Methods for Real-time Detection and Analysis of Wagner Ulcer Classification System

no code implementations3 Jun 2020 Aifu Han, Yongze Zhang, Ajuan Li, Changjin Li, Fengying Zhao, Qiujie Dong, Qin Liu, Yanting Liu, Ximei Shen, Sunjie Yan, Shengzong Zhou

It is necessary to develop a medical system that assists in diagnosing DF in order to reduce part of the workload for podiatrists and to provide timely relevant information to patients with DF.

Improving Model Drift for Robust Object Tracking

no code implementations2 Dec 2019 Qiujie Dong, Xuedong He, Haiyan Ge, Qin Liu, Aifu Han, Shengzong Zhou

However, in complex scenes, the apparent characteristics of the tracked target are variable, which makes it easy to pollute the model and cause the model drift.

Object Object Tracking

Graph Edge Partitioning via Neighborhood Heuristic

1 code implementation13 Aug 2017 Chenzi Zhang, Fan Wei, Qin Liu, Zhihao Gavin Tang, Zhenguo Li

We provide a worst-case upper bound of replication factor for our heuristic on general graphs.

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