no code implementations • WMT (EMNLP) 2021 • Huan Liu, Junpeng Liu, Kaiyu Huang, Degen Huang
This paper describes DUT-NLP Lab’s submission to the WMT-21 triangular machine translation shared task.
no code implementations • 21 Aug 2024 • Dawei Li, Zhen Tan, Huan Liu
The rapid advancement of Large Language Models (LLMs) has significantly influenced various domains, leveraging their exceptional few-shot and zero-shot learning capabilities.
no code implementations • 31 Jul 2024 • Alimohammad Beigi, Zhen Tan, Nivedh Mudiam, Canyu Chen, Kai Shu, Huan Liu
To address this, we introduce a novel approach based on Supervised Contrastive Learning.
no code implementations • 24 Jul 2024 • Ujun Jeong, Bohan Jiang, Zhen Tan, H. Russell Bernard, Huan Liu
Decentralized social media platforms like Bluesky Social (Bluesky) have made it possible to publicly disclose some user behaviors with millisecond-level precision.
no code implementations • 16 Jul 2024 • Garima Agrawal, Tharindu Kumarage, Zeyad Alghamdi, Huan Liu
Large Language Models (LLMs) are proficient at generating coherent and contextually relevant text but face challenges when addressing knowledge-intensive queries in domain-specific and factual question-answering tasks.
no code implementations • 26 Jun 2024 • Bohan Jiang, Chengshuai Zhao, Zhen Tan, Huan Liu
To address this problem, we propose DELD (Detecting Evolving LLM-generated Disinformation), a parameter-efficient approach that jointly leverages the general fact-checking capabilities of pre-trained language models (PLM) and the independent disinformation generation characteristics of various LLMs.
no code implementations • 26 Jun 2024 • Zhen Tan, Chengshuai Zhao, Raha Moraffah, YiFan Li, Song Wang, Jundong Li, Tianlong Chen, Huan Liu
Retrieval-Augmented Generative (RAG) models enhance Large Language Models (LLMs) by integrating external knowledge bases, improving their performance in applications like fact-checking and information searching.
no code implementations • 18 Jun 2024 • Lin Ai, Tharindu Kumarage, Amrita Bhattacharjee, Zizhou Liu, Zheng Hui, Michael Davinroy, James Cook, Laura Cassani, Kirill Trapeznikov, Matthias Kirchner, Arslan Basharat, Anthony Hoogs, Joshua Garland, Huan Liu, Julia Hirschberg
The proliferation of Large Language Models (LLMs) poses challenges in detecting and mitigating digital deception, as these models can emulate human conversational patterns and facilitate chat-based social engineering (CSE) attacks.
no code implementations • 8 Jun 2024 • Yoonhyuk Choi, Reepal Shah, John Sabo, K. Selcuk Candan, Huan Liu
To solve this limitation, we propose two strategies: (1) The first of these is knowledge transfer from regions with rich wetlands (such as the Eastern US) to sparser regions (such as the Southwestern area with few wetlands).
no code implementations • 29 May 2024 • Runlong Yu, Qixiang Shao, Qi Liu, Huan Liu, Enhong Chen
We show that CELL can adaptively evolve into different models for different tasks and data, which enables practitioners to access off-the-shelf models.
no code implementations • 24 May 2024 • Siddhant Bhambri, Amrita Bhattacharjee, Huan Liu, Subbarao Kambhampati
Given, that Large Language Models (LLMs) have rapidly gained prominence across a magnitude of natural language tasks, we aim to answer the following question: Can we leverage LLMs to construct a reward shaping function that can boost the sample efficiency of an RL agent?
no code implementations • 8 May 2024 • Amrita Bhattacharjee, Raha Moraffah, Joshua Garland, Huan Liu
Counterfactual examples are frequently used for model development and evaluation in many natural language processing (NLP) tasks.
1 code implementation • 8 May 2024 • Dawei Li, Shu Yang, Zhen Tan, Jae Young Baik, Sukwon Yun, Joseph Lee, Aaron Chacko, BoJian Hou, Duy Duong-Tran, Ying Ding, Huan Liu, Li Shen, Tianlong Chen
With a synergized framework of LLM and KG mutually enhancing each other, we first leverage LLM to construct an evolving AD-specific knowledge graph (KG) sourced from AD-related scientific literature, and then we utilize a coarse-to-fine sampling method with a novel self-aware knowledge retrieval approach to select appropriate knowledge from the KG to augment LLM inference capabilities.
1 code implementation • 5 May 2024 • Zhixiang Chi, Li Gu, Tao Zhong, Huan Liu, Yuanhao Yu, Konstantinos N Plataniotis, Yang Wang
In this work, we propose an approach on top of the pre-computed features of the foundation model.
Ranked #2 on Domain Generalization on DomainNet
no code implementations • 17 Apr 2024 • Paras Sheth, Tharindu Kumarage, Raha Moraffah, Aman Chadha, Huan Liu
Content moderation faces a challenging task as social media's ability to spread hate speech contrasts with its role in promoting global connectivity.
no code implementations • 10 Apr 2024 • Zewei Zhang, Huan Liu, Jun Chen, Xiangyu Xu
In this paper, we introduce GoodDrag, a novel approach to improve the stability and image quality of drag editing.
no code implementations • 7 Apr 2024 • YiFan Li, Anh Dao, Wentao Bao, Zhen Tan, Tianlong Chen, Huan Liu, Yu Kong
Our initiative on the dataset and benchmarks reveal the nature and rationale of facial affective behaviors, i. e., fine-grained facial movement, interpretability, and reasoning.
no code implementations • 23 Mar 2024 • Amrita Bhattacharjee, Raha Moraffah, Joshua Garland, Huan Liu
With the advancement in capabilities of Large Language Models (LLMs), one major step in the responsible and safe use of such LLMs is to be able to detect text generated by these models.
no code implementations • 20 Mar 2024 • Haochen Han, Minnan Luo, Huan Liu, Fang Nan
Despite the remarkable performance of previous supervised CMR methods, much of their success can be attributed to the well-annotated data.
1 code implementation • 19 Mar 2024 • Ayushi Nirmal, Amrita Bhattacharjee, Paras Sheth, Huan Liu
Although social media platforms are a prominent arena for users to engage in interpersonal discussions and express opinions, the facade and anonymity offered by social media may allow users to spew hate speech and offensive content.
1 code implementation • 17 Mar 2024 • Anique Tahir, Lu Cheng, Huan Liu
The scaling of Large Language Models (LLMs) for retrieval-based tasks, particularly in Retrieval Augmented Generation (RAG), faces significant memory constraints, especially when fine-tuning extensive prompt sequences.
1 code implementation • 11 Mar 2024 • Chuangchuang Tan, Ping Liu, Renshuai Tao, Huan Liu, Yao Zhao, Baoyuan Wu, Yunchao Wei
Due to its unbias towards both the training and test sources, we define it as Data-Independent Operator (DIO) to achieve appealing improvements on unseen sources.
no code implementations • 8 Mar 2024 • Zhen Tan, Jie Peng, Tianlong Chen, Huan Liu
Large Language Models (LLMs) have catalyzed transformative advances across a spectrum of natural language processing tasks through few-shot or zero-shot prompting, bypassing the need for parameter tuning.
no code implementations • 6 Mar 2024 • Bohan Jiang, Lu Cheng, Zhen Tan, Ruocheng Guo, Huan Liu
News media has been utilized as a political tool to stray from facts, presenting biased claims without evidence.
no code implementations • 2 Mar 2024 • Song Wang, Zhen Tan, Xinyu Zhao, Tianlong Chen, Huan Liu, Jundong Li
In contrast, in this work, we propose a novel self-conditioned graph generation framework designed to explicitly model graph distributions and employ these distributions to guide the generation process.
no code implementations • 2 Mar 2024 • Tharindu Kumarage, Garima Agrawal, Paras Sheth, Raha Moraffah, Aman Chadha, Joshua Garland, Huan Liu
We have witnessed lately a rapid proliferation of advanced Large Language Models (LLMs) capable of generating high-quality text.
1 code implementation • 21 Feb 2024 • Zhen Tan, Dawei Li, Song Wang, Alimohammad Beigi, Bohan Jiang, Amrita Bhattacharjee, Mansooreh Karami, Jundong Li, Lu Cheng, Huan Liu
Data annotation generally refers to the labeling or generating of raw data with relevant information, which could be used for improving the efficacy of machine learning models.
1 code implementation • 20 Feb 2024 • Zhen Tan, Chengshuai Zhao, Raha Moraffah, YiFan Li, Yu Kong, Tianlong Chen, Huan Liu
Unlike direct harmful output generation for MLLMs, our research demonstrates how a single MLLM agent can be subtly influenced to generate prompts that, in turn, induce other MLLM agents in the society to output malicious content.
1 code implementation • 9 Feb 2024 • Saurabh Bhausaheb Zinjad, Amrita Bhattacharjee, Amey Bhilegaonkar, Huan Liu
While it is highly recommended that applicants tailor their resume to the specific role they are applying for, manually tailoring resumes to job descriptions and role-specific requirements is often (1) extremely time-consuming, and (2) prone to human errors.
no code implementations • 5 Feb 2024 • Raha Moraffah, Huan Liu
Sentence-level attacks craft adversarial sentences that are synonymous with correctly-classified sentences but are misclassified by the text classifiers.
no code implementations • 5 Feb 2024 • Raha Moraffah, Paras Sheth, Saketh Vishnubhatla, Huan Liu
This survey focuses on the current study of causal feature selection: what it is and how it can reinforce the four aspects of responsible ML.
no code implementations • 5 Feb 2024 • Raha Moraffah, Huan Liu
Different from the discriminative approach, we propose a generative surrogate that learns the distribution of samples residing on or close to the target's decision boundaries.
no code implementations • 5 Feb 2024 • Raha Moraffah, Shubh Khandelwal, Amrita Bhattacharjee, Huan Liu
Adversarial purification is a defense mechanism for safeguarding classifiers against adversarial attacks without knowing the type of attacks or training of the classifier.
1 code implementation • 28 Jan 2024 • Dawei Li, Zhen Tan, Tianlong Chen, Huan Liu
While textual information significantly enhances the performance of pre-trained language models (PLMs) in knowledge graph completion (KGC), the static and noisy nature of existing corpora collected from Wikipedia articles or synsets definitions often limits the potential of PLM-based KGC models.
1 code implementation • 3 Jan 2024 • Huan Liu, Julia Qi, Zhenhao Li, Mohammad Hassanpour, Yang Wang, Konstantinos Plataniotis, Yuanhao Yu
Despite the recent remarkable achievement in gaze estimation, efficient and accurate personalization of gaze estimation without labels is a practical problem but rarely touched on in the literature.
1 code implementation • CVPR 2024 • Huan Liu, Zichang Tan, Chuangchuang Tan, Yunchao Wei, Yao Zhao, Jingdong Wang
In this paper, we study the problem of generalizable synthetic image detection, aiming to detect forgery images from diverse generative methods, e. g., GANs and diffusion models.
2 code implementations • 22 Dec 2023 • Zhen Tan, Tianlong Chen, Zhenyu Zhang, Huan Liu
Large Language Models (LLMs) have achieved unprecedented breakthroughs in various natural language processing domains.
2 code implementations • CVPR 2024 • Chuangchuang Tan, Huan Liu, Yao Zhao, Shikui Wei, Guanghua Gu, Ping Liu, Yunchao Wei
Recently, the proliferation of highly realistic synthetic images, facilitated through a variety of GANs and Diffusions, has significantly heightened the susceptibility to misuse.
no code implementations • 26 Nov 2023 • Lanrui Wang, Jiangnan Li, Chenxu Yang, Zheng Lin, Hongyin Tang, Huan Liu, Xiaolei Huang, Yanan Cao, Jingang Wang, Weiping Wang
Recently, there has been a heightened interest in building chatbots based on Large Language Models (LLMs) to emulate human-like qualities in dialogues, including expressing empathy and offering emotional support.
no code implementations • 20 Nov 2023 • YiFan Li, Zhen Tan, Kai Shu, Zongsheng Cao, Yu Kong, Huan Liu
Graph Neural Networks (GNNs) have emerged as a powerful tool for representation learning on graphs, but they often suffer from overfitting and label noise issues, especially when the data is scarce or imbalanced.
no code implementations • 14 Nov 2023 • Garima Agrawal, Tharindu Kumarage, Zeyad Alghamdi, Huan Liu
The contemporary LLMs are prone to producing hallucinations, stemming mainly from the knowledge gaps within the models.
1 code implementation • 8 Nov 2023 • Zhen Tan, Lu Cheng, Song Wang, Yuan Bo, Jundong Li, Huan Liu
Pretrained language models (PLMs) have made significant strides in various natural language processing tasks.
no code implementations • 1 Nov 2023 • Suraj Jyothi Unni, Raha Moraffah, Huan Liu
validating that comprehensive multi-modal shifts are critical for robust VQA generalization.
no code implementations • 23 Oct 2023 • Yuan Li, Huan Liu, Yubo Tao, Xiangyang He, Haifeng Li, Xiaohu Guo, Hai Lin
Furthermore, the segmentation accuracy is improved by 2. 4%-5. 5% with the increasing volume of training data.
no code implementations • 8 Oct 2023 • Tharindu Kumarage, Paras Sheth, Raha Moraffah, Joshua Garland, Huan Liu
The novel universal evasive prompt is achieved in two steps: First, we create an evasive soft prompt tailored to a specific PLM through prompt tuning; and then, we leverage the transferability of soft prompts to transfer the learned evasive soft prompt from one PLM to another.
no code implementations • 26 Sep 2023 • Nayoung Kim, David Mosallanezhad, Lu Cheng, Michelle V. Mancenido, Huan Liu
The abundance of social media data has presented opportunities for accurately determining public and group-specific stances around policy proposals or controversial topics.
no code implementations • 25 Sep 2023 • Bohan Jiang, Zhen Tan, Ayushi Nirmal, Huan Liu
A holistic exploration for the formation and detection of disinformation is conducted to foster this line of research.
no code implementations • 23 Sep 2023 • Amrita Bhattacharjee, Raha Moraffah, Joshua Garland, Huan Liu
Inspired by recent endeavors to utilize Large Language Models (LLMs) as experts, in this work, we aim to leverage the instruction-following and textual understanding capabilities of recent state-of-the-art LLMs to facilitate causal explainability via counterfactual explanation generation for black-box text classifiers.
no code implementations • 18 Sep 2023 • Huan Liu, Zichang Tan, Qiang Chen, Yunchao Wei, Yao Zhao, Jingdong Wang
Moreover, to address the semantic conflicts between image and frequency domains, the forgery-aware mutual module is developed to further enable the effective interaction of disparate image and frequency features, resulting in aligned and comprehensive visual forgery representations.
1 code implementation • 7 Sep 2023 • Amrita Bhattacharjee, Tharindu Kumarage, Raha Moraffah, Huan Liu
Given the potential malicious nature in which these LLMs can be used to generate disinformation at scale, it is important to build effective detectors for such AI-generated text.
2 code implementations • 6 Sep 2023 • Tharindu Kumarage, Amrita Bhattacharjee, Djordje Padejski, Kristy Roschke, Dan Gillmor, Scott Ruston, Huan Liu, Joshua Garland
The rapid proliferation of AI-generated text online is profoundly reshaping the information landscape.
no code implementations • 20 Aug 2023 • Yougang Xiao, Hao Yang, Huan Liu, Keyu Wu, Guohua Wu
Unmanned aerial vehicles (UAVs) are desirable platforms for time-efficient and cost-effective task execution.
1 code implementation • 14 Aug 2023 • Tharindu Kumarage, Huan Liu
Large language models (LLMs) such as GPT-4, PaLM, and Llama have significantly propelled the generation of AI-crafted text.
2 code implementations • ICCV 2023 • Huan Liu, Qiang Chen, Zichang Tan, Jiang-Jiang Liu, Jian Wang, Xiangbo Su, Xiaolong Li, Kun Yao, Junyu Han, Errui Ding, Yao Zhao, Jingdong Wang
State-of-the-art solutions adopt the DETR-like framework, and mainly develop the complex decoder, e. g., regarding pose estimation as keypoint box detection and combining with human detection in ED-Pose, hierarchically predicting with pose decoder and joint (keypoint) decoder in PETR.
1 code implementation • 3 Aug 2023 • Paras Sheth, Tharindu Kumarage, Raha Moraffah, Aman Chadha, Huan Liu
By disentangling input into platform-dependent features (useful for predicting hate targets) and platform-independent features (used to predict the presence of hate), we learn invariant representations resistant to distribution shifts.
1 code implementation • 2 Aug 2023 • Amrita Bhattacharjee, Huan Liu
Large language models (LLMs) such as ChatGPT are increasingly being used for various use cases, including text content generation at scale.
no code implementations • 25 Jul 2023 • Suraj Jyothi Unni, Paras Sheth, Kaize Ding, Huan Liu, K. Selcuk Candan
Discovering causal relationships in complex socio-behavioral systems is challenging but essential for informed decision-making.
1 code implementation • 23 Jul 2023 • Tianan Li, Zhehan Chen, Huan Liu, Chen Wang
To address these challenges, we propose a Fast Depth Completion framework for Transparent objects (FDCT), which also benefits downstream tasks like object pose estimation.
1 code implementation • 10 Jul 2023 • Faisal Alatawi, Paras Sheth, Huan Liu
To facilitate measuring distances between users, we propose EchoGAE, a self-supervised graph autoencoder-based user embedding model that leverages users' posts and the interaction graph to embed them in a manner that reflects their ideological similarity.
1 code implementation • 27 Jun 2023 • Song Wang, Zhen Tan, Huan Liu, Jundong Li
First, we propose to enhance the intra-class generalizability by involving a contrastive two-step optimization in each episode to explicitly align node embeddings in the same classes.
1 code implementation • 15 Jun 2023 • Paras Sheth, Tharindu Kumarage, Raha Moraffah, Aman Chadha, Huan Liu
Hate speech detection refers to the task of detecting hateful content that aims at denigrating an individual or a group based on their religion, gender, sexual orientation, or other characteristics.
no code implementations • 14 Jun 2023 • Hirthik Mathavan, Zhen Tan, Nivedh Mudiam, Huan Liu
Meta-learning has emerged as a powerful training strategy for few-shot node classification, demonstrating its effectiveness in the transductive setting.
no code implementations • 9 Jun 2023 • Zhen Tan, Ruocheng Guo, Kaize Ding, Huan Liu
Our approach utilizes a pretrained graph transformer as the encoder and injects virtual nodes as soft prompts in the embedding space, which can be optimized with few-shot labels in novel classes to modulate node embeddings for each specific FSNC task.
1 code implementation • 29 May 2023 • Yixin Liu, Kaize Ding, Jianling Wang, Vincent Lee, Huan Liu, Shirui Pan
Accordingly, we propose D$^2$PT, a dual-channel GNN framework that performs long-range information propagation not only on the input graph with incomplete structure, but also on a global graph that encodes global semantic similarities.
no code implementations • 27 May 2023 • Kaize Ding, Albert Jiongqian Liang, Bryan Perrozi, Ting Chen, Ruoxi Wang, Lichan Hong, Ed H. Chi, Huan Liu, Derek Zhiyuan Cheng
Learning expressive representations for high-dimensional yet sparse features has been a longstanding problem in information retrieval.
no code implementations • 25 Apr 2023 • Ke Chen, Liangyan Li, Huan Liu, Yunzhe Li, Congling Tang, Jun Chen
Stereo Image Super-Resolution (stereoSR) has attracted significant attention in recent years due to the extensive deployment of dual cameras in mobile phones, autonomous vehicles and robots.
1 code implementation • 16 Apr 2023 • Yangyi Liu, Huan Liu, Liangyan Li, Zijun Wu, Jun Chen
Although it is possible to augment the NH-HAZE23 dataset by leveraging other non-homogeneous dehazing datasets, we observe that it is necessary to design a proper data-preprocessing approach that reduces the distribution gaps between the target dataset and the augmented one.
1 code implementation • 7 Apr 2023 • Anique Tahir, Lu Cheng, Huan Liu
We then propose a principled model to improve fairness when aleatoric uncertainty is high and improve utility elsewhere.
1 code implementation • CVPR 2023 • Shirui Huang, Keyan Wang, Huan Liu, Jun Chen, Yunsong Li
Despite the remarkable achievement of recent underwater image restoration techniques, the lack of labeled data has become a major hurdle for further progress.
1 code implementation • 7 Mar 2023 • Tharindu Kumarage, Joshua Garland, Amrita Bhattacharjee, Kirill Trapeznikov, Scott Ruston, Huan Liu
However, tweets are inherently short, thus making it difficult for current state-of-the-art pre-trained language model-based detectors to accurately detect at what point the AI starts to generate tweets in a given Twitter timeline.
1 code implementation • 31 Jan 2023 • Melanie Subbiah, Amrita Bhattacharjee, Yilun Hua, Tharindu Kumarage, Huan Liu, Kathleen McKeown
Manipulated news online is a growing problem which necessitates the use of automated systems to curtail its spread.
no code implementations • 25 Jan 2023 • Baoyu Jing, Yuchen Yan, Kaize Ding, Chanyoung Park, Yada Zhu, Huan Liu, Hanghang Tong
Most recent bipartite graph SSL methods are based on contrastive learning which learns embeddings by discriminating positive and negative node pairs.
1 code implementation • 24 Dec 2022 • Ujun Jeong, Kaize Ding, Lu Cheng, Ruocheng Guo, Kai Shu, Huan Liu
Nowadays, fake news easily propagates through online social networks and becomes a grand threat to individuals and society.
Ranked #1 on Graph Classification on UPFD-POL
1 code implementation • 11 Dec 2022 • Zhen Tan, Song Wang, Kaize Ding, Jundong Li, Huan Liu
More recently, inspired by the development of graph self-supervised learning, transferring pretrained node embeddings for few-shot node classification could be a promising alternative to meta-learning but remains unexposed.
1 code implementation • 2 Dec 2022 • Maowei Jiang, Pengyu Zeng, Kai Wang, Huan Liu, Wenbo Chen, Haoran Liu
However, use of FT is problematic due to Gibbs phenomenon.
1 code implementation • 9 Nov 2022 • Anique Tahir, Lu Cheng, Ruocheng Guo, Huan Liu
Machine learning algorithms typically assume that the training and test samples come from the same distributions, i. e., in-distribution.
1 code implementation • 8 Nov 2022 • Yixin Liu, Kaize Ding, Huan Liu, Shirui Pan
As a pioneering work in unsupervised graph-level OOD detection, we build a comprehensive benchmark to compare our proposed approach with different state-of-the-art methods.
4 code implementations • 1 Oct 2022 • Li Gu, Zhixiang Chi, Huan Liu, Yuanhao Yu, Yang Wang
In this work, we present the winning solution for ORBIT Few-Shot Video Object Recognition Challenge 2022.
no code implementations • 30 Sep 2022 • Paras Sheth, Raha Moraffah, K. Selçuk Candan, Adrienne Raglin, Huan Liu
As a result models that rely on this assumption exhibit poor generalization capabilities.
1 code implementation • COLING 2022 • Lu Cheng, Nayoung Kim, Huan Liu
Therefore, this work studies biases associated with multiple social categories: joint biases induced by the union of different categories and intersectional biases that do not overlap with the biases of the constituent categories.
no code implementations • 26 Aug 2022 • Kaize Ding, Elnaz Nouri, Guoqing Zheng, Huan Liu, Ryen White
The success of graph neural networks on graph-based web mining highly relies on abundant human-annotated data, which is laborious to obtain in practice.
no code implementations • 10 Aug 2022 • Shoujin Wang, Xiuzhen Zhang, Yan Wang, Huan Liu, Francesco Ricci
However, researchers lack a systematic overview and discussion of the literature in this novel and fast developing field of TRSs.
no code implementations • 7 Aug 2022 • Mansooreh Karami, Ahmadreza Mosallanezhad, Paras Sheth, Huan Liu
To reduce the bias induced by the contributors, in this work, we focus on highlighting the engagers' contributions in the observed data as they are more likely to contribute when compared to lurkers, and they comprise a bigger population as compared to the contributors.
1 code implementation • 22 Jul 2022 • Huan Liu, Li Gu, Zhixiang Chi, Yang Wang, Yuanhao Yu, Jun Chen, Jin Tang
In this paper, we show through empirical results that adopting the data replay is surprisingly favorable.
1 code implementation • 30 Jun 2022 • Bohan Jiang, Paras Sheth, Baoxin Li, Huan Liu
Despite the astonishing success of COVID-19 vaccines against the virus, a substantial proportion of the population is still hesitant to be vaccinated, undermining governmental efforts to control the virus.
no code implementations • 24 May 2022 • Lu Cheng, Suyu Ge, Huan Liu
In particular, we examine bias mitigation in two common NLP tasks -- toxicity detection and word embeddings -- on three social identities, i. e., race, gender, and religion.
2 code implementations • 11 May 2022 • Yawei Li, Kai Zhang, Radu Timofte, Luc van Gool, Fangyuan Kong, Mingxi Li, Songwei Liu, Zongcai Du, Ding Liu, Chenhui Zhou, Jingyi Chen, Qingrui Han, Zheyuan Li, Yingqi Liu, Xiangyu Chen, Haoming Cai, Yu Qiao, Chao Dong, Long Sun, Jinshan Pan, Yi Zhu, Zhikai Zong, Xiaoxiao Liu, Zheng Hui, Tao Yang, Peiran Ren, Xuansong Xie, Xian-Sheng Hua, Yanbo Wang, Xiaozhong Ji, Chuming Lin, Donghao Luo, Ying Tai, Chengjie Wang, Zhizhong Zhang, Yuan Xie, Shen Cheng, Ziwei Luo, Lei Yu, Zhihong Wen, Qi Wu1, Youwei Li, Haoqiang Fan, Jian Sun, Shuaicheng Liu, Yuanfei Huang, Meiguang Jin, Hua Huang, Jing Liu, Xinjian Zhang, Yan Wang, Lingshun Long, Gen Li, Yuanfan Zhang, Zuowei Cao, Lei Sun, Panaetov Alexander, Yucong Wang, Minjie Cai, Li Wang, Lu Tian, Zheyuan Wang, Hongbing Ma, Jie Liu, Chao Chen, Yidong Cai, Jie Tang, Gangshan Wu, Weiran Wang, Shirui Huang, Honglei Lu, Huan Liu, Keyan Wang, Jun Chen, Shi Chen, Yuchun Miao, Zimo Huang, Lefei Zhang, Mustafa Ayazoğlu, Wei Xiong, Chengyi Xiong, Fei Wang, Hao Li, Ruimian Wen, Zhijing Yang, Wenbin Zou, Weixin Zheng, Tian Ye, Yuncheng Zhang, Xiangzhen Kong, Aditya Arora, Syed Waqas Zamir, Salman Khan, Munawar Hayat, Fahad Shahbaz Khan, Dandan Gaoand Dengwen Zhouand Qian Ning, Jingzhu Tang, Han Huang, YuFei Wang, Zhangheng Peng, Haobo Li, Wenxue Guan, Shenghua Gong, Xin Li, Jun Liu, Wanjun Wang, Dengwen Zhou, Kun Zeng, Hanjiang Lin, Xinyu Chen, Jinsheng Fang
The aim was to design a network for single image super-resolution that achieved improvement of efficiency measured according to several metrics including runtime, parameters, FLOPs, activations, and memory consumption while at least maintaining the PSNR of 29. 00dB on DIV2K validation set.
1 code implementation • 6 May 2022 • Qiang Sheng, Juan Cao, H. Russell Bernard, Kai Shu, Jintao Li, Huan Liu
False news that spreads on social media has proliferated over the past years and has led to multi-aspect threats in the real world.
no code implementations • 14 Apr 2022 • Paras Sheth, Ruocheng Guo, Lu Cheng, Huan Liu, K. Selçuk Candan
Aside from the user conformity, aspects of confounding such as item popularity present in the network information is also captured in our method with the aid of \textit{causal disentanglement} which unravels the learned representations into independent factors that are responsible for (a) modeling the exposure of an item to the user, (b) predicting the ratings, and (c) controlling the hidden confounders.
no code implementations • 4 Apr 2022 • Fangyu Hong, Guohua Wu, Qizhang Luo, Huan Liu, Xiaoping Fang, Witold Pedrycz
Different from the previous urban distribution mode that depends on trucks, this paper proposes a novel package pick-up and delivery mode and system in which multiple drones collaborate with automatic devices.
no code implementations • 29 Mar 2022 • Zhen Tan, Kaize Ding, Ruocheng Guo, Huan Liu
Graphs are present in many real-world applications, such as financial fraud detection, commercial recommendation, and social network analysis.
no code implementations • 22 Mar 2022 • Amrita Bhattacharjee, Mansooreh Karami, Huan Liu
Contrastive self-supervised learning has become a prominent technique in representation learning.
no code implementations • 17 Mar 2022 • Chuxu Zhang, Kaize Ding, Jundong Li, Xiangliang Zhang, Yanfang Ye, Nitesh V. Chawla, Huan Liu
In light of this, few-shot learning on graphs (FSLG), which combines the strengths of graph representation learning and few-shot learning together, has been proposed to tackle the performance degradation in face of limited annotated data challenge.
no code implementations • 23 Feb 2022 • Jiaying Liu, Feng Xia, Xu Feng, Jing Ren, Huan Liu
To address this open issue, we propose a novel deep graph learning model, namely GLAD (Graph Learning for Anomaly Detection), to identify anomalies in citation networks.
no code implementations • 22 Feb 2022 • Ciyuan Peng, Feng Xia, Vidya Saikrishna, Huan Liu
The graph learning models suffer from the inability to efficiently learn graph information.
1 code implementation • 17 Feb 2022 • Kaize Ding, Yancheng Wang, Yingzhen Yang, Huan Liu
In general, the contrastive learning process in GCL is performed on top of the representations learned by a graph neural network (GNN) backbone, which transforms and propagates the node contextual information based on its local neighborhoods.
no code implementations • 16 Feb 2022 • Ahmadreza Mosallanezhad, Mansooreh Karami, Kai Shu, Michelle V. Mancenido, Huan Liu
With social media being a major force in information consumption, accelerated propagation of fake news has presented new challenges for platforms to distinguish between legitimate and fake news.
1 code implementation • 16 Feb 2022 • Kaize Ding, Zhe Xu, Hanghang Tong, Huan Liu
In this survey, we formally formulate the problem of graph data augmentation and further review the representative techniques and their applications in different deep graph learning problems.
no code implementations • 9 Feb 2022 • Xinyi Zhou, Kai Shu, Vir V. Phoha, Huan Liu, Reza Zafarani
To distinguish between intentional versus unintentional spreading, we study the psychological explanations of unintentional spreading.
no code implementations • 7 Feb 2022 • Lu Cheng, Ruocheng Guo, Raha Moraffah, Paras Sheth, K. Selcuk Candan, Huan Liu
To bridge from conventional causal inference (i. e., based on statistical methods) to causal learning with big data (i. e., the intersection of causal inference and machine learning), in this survey, we review commonly-used datasets, evaluation methods, and measures for causal learning using an evaluation pipeline similar to conventional machine learning.
no code implementations • CVPR 2022 • Zhixiang Chi, Li Gu, Huan Liu, Yang Wang, Yuanhao Yu, Jin Tang
The learning objective of these methods is often hand-engineered and is not directly tied to the objective (i. e. incrementally learning new classes) during testing.
no code implementations • CVPR 2022 • Huan Liu, Zijun Wu, Liangyan Li, Sadaf Salehkalaibar, Jun Chen, Keyan Wang
Motivated by this observation, we propose a test-time training method which leverages a helper network to assist the dehazing model in better adapting to a domain of interest.
1 code implementation • 23 Dec 2021 • Zhen Tan, Kaize Ding, Ruocheng Guo, Huan Liu
The ability to incrementally learn new classes is vital to all real-world artificial intelligence systems.
1 code implementation • 19 Dec 2021 • Lu Cheng, Ruocheng Guo, Huan Liu
This work empirically examines the causal effects of user-generated online reviews on a granular level: we consider multiple aspects, e. g., the Food and Service of a restaurant.
1 code implementation • 18 Dec 2021 • Kaize Ding, Jianling Wang, James Caverlee, Huan Liu
Inspired by the extensive success of deep learning, graph neural networks (GNNs) have been proposed to learn expressive node representations and demonstrated promising performance in various graph learning tasks.
no code implementations • 9 Dec 2021 • Faisal Alatawi, Lu Cheng, Anique Tahir, Mansooreh Karami, Bohan Jiang, Tyler Black, Huan Liu
These mechanisms could be manifested in two forms: (1) the bias of social media's recommender systems and (2) internal biases such as confirmation bias and homophily.
no code implementations • 28 Oct 2021 • Congqing He, Jie Zhang, Xiangyu Zhu, Huan Liu, Yukun Huang
To this end, we introduce a fresh perspective to revisit the relational event-cause extraction task and propose a novel sequence tagging framework, instead of extracting event types and events-causes separately.
no code implementations • 22 Oct 2021 • Huan Liu, Junsong Yuan, Chen Wang, Jun Chen
Despite recent improvement of supervised monocular depth estimation, the lack of high quality pixel-wise ground truth annotations has become a major hurdle for further progress.
1 code implementation • 4 Oct 2021 • Lu Cheng, Ruocheng Guo, Kasim Selcuk Candan, Huan Liu
Online review systems are the primary means through which many businesses seek to build the brand and spread their messages.
no code implementations • ICLR 2022 • Huan Liu, George Zhang, Jun Chen, Ashish J Khisti
We study the problem of cross-domain lossy compression where the reconstruction distribution is different from the source distribution in order to account for distributional shift due to processing.
no code implementations • EMNLP 2021 • Kaize Ding, Dingcheng Li, Alexander Hanbo Li, Xing Fan, Chenlei Guo, Yang Liu, Huan Liu
In this work, we go beyond the existing paradigms and propose a novel approach to generate high-quality paraphrases with weak supervision data.
no code implementations • 4 Sep 2021 • Caixia Yan, Xiaojun Chang, Minnan Luo, Huan Liu, Xiaoqin Zhang, Qinghua Zheng
To address these issues, we develop a novel Semantics-Guided Contrastive Network for ZSD, named ContrastZSD, a detection framework that first brings contrastive learning mechanism into the realm of zero-shot detection.
Ranked #4 on Zero-Shot Object Detection on MS-COCO
Contrastive Learning Generalized Zero-Shot Object Detection +3
no code implementations • 11 Aug 2021 • Guangyi Xiao, Weiwei Xiang, Huan Liu, Hao Chen, Shun Peng, Jingzhi Guo, Zhiguo Gong
We propose a new general Graph Adversarial Domain Adaptation (GADA) based on semantic knowledge reasoning of class structure for solving the problem of unsupervised domain adaptation (UDA) from the big data with non-shared and imbalanced classes to specified small and imbalanced applications (NI-UDA), where non-shared classes mean the label space out of the target domain.
1 code implementation • ACL 2021 • Lu Cheng, Ahmadreza Mosallanezhad, Yasin Silva, Deborah Hall, Huan Liu
The element of repetition in cyberbullying behavior has directed recent computational studies toward detecting cyberbullying based on a social media session.
no code implementations • 12 Jun 2021 • Kaize Ding, Jianling Wang, Jundong Li, James Caverlee, Huan Liu
Graphs are widely used to model the relational structure of data, and the research of graph machine learning (ML) has a wide spectrum of applications ranging from drug design in molecular graphs to friendship recommendation in social networks.
no code implementations • 31 May 2021 • Ujun Jeong, Kaize Ding, Huan Liu
The growing use of social media has led to drastic changes in our decision-making.
no code implementations • 3 May 2021 • Feng Xia, Ke Sun, Shuo Yu, Abdul Aziz, Liangtian Wan, Shirui Pan, Huan Liu
In this survey, we present a comprehensive overview on the state-of-the-art of graph learning.
no code implementations • 25 Apr 2021 • Lu Cheng, Ahmadreza Mosallanezhad, Paras Sheth, Huan Liu
The goal of this survey is to bring forefront the potentials and promises of CL for SRAI.
1 code implementation • 18 Apr 2021 • Minghan Fu, Huan Liu, Yankun Yu, Jun Chen, Keyan Wang
By utilizing wavelet transform in DWT branch, our proposed method can retain more high-frequency knowledge in feature maps.
1 code implementation • 18 Apr 2021 • Yankun Yu, Huan Liu, Minghan Fu, Jun Chen, Xiyao Wang, Keyan Wang
Recently, there has been rapid and significant progress on image dehazing.
2 code implementations • 22 Feb 2021 • Kaize Ding, Qinghai Zhou, Hanghang Tong, Huan Liu
Network anomaly detection aims to find network elements (e. g., nodes, edges, subgraphs) with significantly different behaviors from the vast majority.
no code implementations • 21 Feb 2021 • Lu Cheng, Ruocheng Guo, Huan Liu
An important problem in causal inference is to break down the total effect of a treatment on an outcome into different causal pathways and to quantify the causal effect in each pathway.
no code implementations • 11 Feb 2021 • Raha Moraffah, Paras Sheth, Mansooreh Karami, Anchit Bhattacharya, Qianru Wang, Anique Tahir, Adrienne Raglin, Huan Liu
In this paper, we focus on two causal inference tasks, i. e., treatment effect estimation and causal discovery for time series data, and provide a comprehensive review of the approaches in each task.
no code implementations • 5 Feb 2021 • Huan Liu, Jun Chen
Therefore, it is capable of consolidating the expressibility of different architectures, resulting in a more accurate indirect domain shift (IDS) from the hazy images to that of clear images.
no code implementations • 1 Jan 2021 • Lu Cheng, Kush R. Varshney, Huan Liu
In this survey, we provide a systematic framework of Socially Responsible AI Algorithms that aims to examine the subjects of AI indifference and the need for socially responsible AI algorithms, define the objectives, and introduce the means by which we may achieve these objectives.
1 code implementation • 10 Dec 2020 • Mansooreh Karami, Ahmadreza Mosallanezhad, Michelle V Mancenido, Huan Liu
Neural network-based embeddings have been the mainstream approach for creating a vector representation of the text to capture lexical and semantic similarities and dissimilarities.
1 code implementation • 8 Dec 2020 • Kai Shu, Yichuan Li, Kaize Ding, Huan Liu
The existing text generation methods either afford limited supplementary information or lose consistency between the input and output which makes the synthetic news less trustworthy.
3 code implementations • 8 Nov 2020 • Yichuan Li, Bohan Jiang, Kai Shu, Huan Liu
The COVID-19 epidemic is considered as the global health crisis of the whole society and the greatest challenge mankind faced since World War Two.
Social and Information Networks Computers and Society
1 code implementation • 1 Nov 2020 • Suyu Ge, Lu Cheng, Huan Liu
Cyberbullying, identified as intended and repeated online bullying behavior, has become increasingly prevalent in the past few decades.
1 code implementation • EMNLP 2020 • Kaize Ding, Jianling Wang, Jundong Li, Dingcheng Li, Huan Liu
Text classification is a critical research topic with broad applications in natural language processing.
no code implementations • 30 Oct 2020 • Ahmadreza Mosallanezhad, Kai Shu, Huan Liu
In this paper, we consider realistic news as news that cannot be easily detected by a fake news classifier.
no code implementations • 18 Oct 2020 • Amrita Bhattacharjee, Kai Shu, Min Gao, Huan Liu
We then proceed to discuss the inherent challenges in disinformation research, and then elaborate on the computational and interdisciplinary approaches towards mitigation of disinformation, after a short overview of the various directions explored in detection efforts.
no code implementations • 30 Sep 2020 • Ahmadreza Mosallanezhad, Yasin N. Silva, Michelle V. Mancenido, Huan Liu
Face images are rich data items that are useful and can easily be collected in many applications, such as in 1-to-1 face verification tasks in the domain of security and surveillance systems.
no code implementations • 26 Aug 2020 • Raha Moraffah, Bahman Moraffah, Mansooreh Karami, Adrienne Raglin, Huan Liu
The LGN is a GAN-based architecture which learns and samples from the causal model over labels.
1 code implementation • 19 Aug 2020 • Lu Cheng, Ruocheng Guo, Huan Liu
Second, short-term outcomes are often directly used as the proxy of the primary outcome, i. e., the surrogate.
no code implementations • 14 Jul 2020 • Kai Shu, Amrita Bhattacharjee, Faisal Alatawi, Tahora Nazer, Kaize Ding, Mansooreh Karami, Huan Liu
The creation, dissemination, and consumption of disinformation and fabricated content on social media is a growing concern, especially with the ease of access to such sources, and the lack of awareness of the existence of such false information.
2 code implementations • 23 Jun 2020 • Kaize Ding, Jianling Wang, Jundong Li, Kai Shu, Chenghao Liu, Huan Liu
By constructing a pool of semi-supervised node classification tasks to mimic the real test environment, GPN is able to perform \textit{meta-learning} on an attributed network and derive a highly generalizable model for handling the target classification task.
no code implementations • 23 Apr 2020 • Ninghao Liu, Mengnan Du, Ruocheng Guo, Huan Liu, Xia Hu
In this paper, we review recent work on adversarial attacks and defenses, particularly from the perspective of machine learning interpretation.
no code implementations • 3 Apr 2020 • Kai Shu, Guoqing Zheng, Yichuan Li, Subhabrata Mukherjee, Ahmed Hassan Awadallah, Scott Ruston, Huan Liu
Social media has greatly enabled people to participate in online activities at an unprecedented rate.
no code implementations • 9 Mar 2020 • Raha Moraffah, Mansooreh Karami, Ruocheng Guo, Adrienne Raglin, Huan Liu
In this work, models that aim to answer causal questions are referred to as causal interpretable models.
no code implementations • 4 Jan 2020 • Ghazaleh Beigi, Jiliang Tang, Huan Liu
The existence of negative links piques research interests in investigating whether properties and principles of signed networks differ from those of unsigned networks, and mandates dedicated efforts on link analysis for signed social networks.
1 code implementation • 2 Jan 2020 • Kai Shu, Suhang Wang, Dongwon Lee, Huan Liu
In recent years, disinformation including fake news, has became a global phenomenon due to its explosive growth, particularly on social media.
no code implementations • 22 Dec 2019 • Ruocheng Guo, Jundong Li, Huan Liu
When such data comes with network information, the later can be potentially useful to correct hidden confounding bias.
no code implementations • 22 Nov 2019 • Ghazaleh Beigi, Ahmadreza Mosallanezhad, Ruocheng Guo, Hamidreza Alvari, Alexander Nou, Huan Liu
The attacker seeks to infer users' private-attribute information according to their items list and recommendations.
no code implementations • IJCNLP 2019 • Ahmadreza Mosallanezhad, Ghazaleh Beigi, Huan Liu
Experiments show the effectiveness of this approach in terms of preserving both privacy and utility.
no code implementations • 28 Oct 2019 • Raha Moraffah, Kai Shu, Adrienne Raglin, Huan Liu
Recent research on deep domain adaptation proposed to mitigate this problem by forcing the deep model to learn more transferable feature representations across domains.
no code implementations • 24 Oct 2019 • Kai Shu, Ahmed Hassan Awadallah, Susan Dumais, Huan Liu
This is especially the case for many real-world tasks where large scale annotated examples are either too expensive to acquire or unavailable due to privacy or data access constraints.
no code implementations • 19 Aug 2019 • Kaize Ding, Yichuan Li, Jundong Li, Chenghao Liu, Huan Liu
Inspired by the immense success of deep learning, graph neural networks (GNNs) are widely used to learn powerful node representations and have demonstrated promising performance on different graph learning tasks.
2 code implementations • 31 Jul 2019 • Xiang Zhang, Xiaocong Chen, Manqing Dong, Huan Liu, Chang Ge, Lina Yao
In light of this, we propose a novel multi-task generative adversarial network to convert the individual's EEG signals evoked by geometrical shapes to the original geometry.
1 code implementation • 8 Jun 2019 • Ruocheng Guo, Jundong Li, Huan Liu
In fact, an important fact ignored by the majority of previous work is that observational data can come with network information that can be utilized to infer hidden confounders.
2 code implementations • 2019 SIAM International Conference on Data Mining (SDM) 2019 • Kaize Ding, Jundong Li, Rohit Bhanushali, Huan Liu
In particular, our proposed deep model: (1) explicitly models the topological structure and nodal attributes seamlessly for node embedding learning with the prevalent graph convolutional network (GCN); and (2) is customized to address the anomaly detection problem by virtue of deep autoencoder that leverages the learned embeddings to reconstruct the original data.
no code implementations • 1 May 2019 • Yu-Feng Yu, Yuelong Zhu, Dingsheng Wan, Qun Zhao, Kai Shu, Huan Liu
Floods of research and practical applications employ social media data for a wide range of public applications, including environmental monitoring, water resource managing, disaster and emergency response. Hydroinformatics can benefit from the social media technologies with newly emerged data, techniques and analytical tools to handle large datasets, from which creative ideas and new values could be mined. This paper first proposes a 4W (What, Why, When, hoW) model and a methodological structure to better understand and represent the application of social media to hydroinformatics, then provides an overview of academic research of applying social media to hydroinformatics such as water environment, water resources, flood, drought and water Scarcity management.
no code implementations • 1 May 2019 • Yu-Feng Yu, Yuelong Zhu, Dingsheng Wan, Qun Zhao, Huan Liu
The experimental results on diverse time series data sets demonstrate that our proposed representation significantly outperforms the original SAX representation and an improved SAX representation for classification.
no code implementations • 30 Apr 2019 • Kai Shu, Xinyi Zhou, Suhang Wang, Reza Zafarani, Huan Liu
In an attempt to understand connections between user profiles and fake news, first, we measure users' sharing behaviors on social media and group representative users who are more likely to share fake and real news; then, we perform a comparative analysis of explicit and implicit profile features between these user groups, which reveals their potential to help differentiate fake news from real news.
2 code implementations • 21 Mar 2019 • Kai Shu, Deepak Mahudeswaran, Suhang Wang, Huan Liu
In an attempt to understand the correlations between news propagation networks and fake news, first, we build a hierarchical propagation network from macro-level and micro-level of fake news and true news; second, we perform a comparative analysis of the propagation network features of linguistic, structural and temporal perspectives between fake and real news, which demonstrates the potential of utilizing these features to detect fake news; third, we show the effectiveness of these propagation network features for fake news detection.
Social and Information Networks
no code implementations • 6 Mar 2019 • Ghazaleh Beigi, Suhas Ranganath, Huan Liu
Predicting signed links in social networks often faces the problem of signed link data sparsity, i. e., only a small percentage of signed links are given.
no code implementations • 6 Mar 2019 • Wen Zhang, Kai Shu, Huan Liu, Yalin Wang
In particular, we provide a principled approach to jointly capture local and global information in the user-user social graph and propose the framework {\m}, which jointly learning user representations for user identity linkage.
no code implementations • 25 Nov 2018 • Binbin Liu, Jundong Li, Yunquan Song, Xijun Liang, Ling Jian, Huan Liu
In particular, we extend the ONS algorithm with the trick of expected gradient and develop a novel second-order online learning algorithm, i. e., Online Newton Step with Expected Gradient (ONSEG).
3 code implementations • 25 Sep 2018 • Ruocheng Guo, Lu Cheng, Jundong Li, P. Richard Hahn, Huan Liu
This work considers the question of how convenient access to copious data impacts our ability to learn causal effects and relations.
9 code implementations • 5 Sep 2018 • Kai Shu, Deepak Mahudeswaran, Suhang Wang, Dongwon Lee, Huan Liu
However, fake news detection is a non-trivial task, which requires multi-source information such as news content, social context, and dynamic information.
Social and Information Networks