1 code implementation • EMNLP (newsum) 2021 • Wenyi Tay, Xiuzhen Zhang, Stephen Wan, Sarvnaz Karimi
For many NLP applications of online reviews, comparison of two opinion-bearing sentences is key.
no code implementations • ALTA 2021 • Nannan Huang, Xiuzhen Zhang
In this paper, we propose to use the question-answering(QA) approach to evaluate summaries of opinions in reviews.
no code implementations • ALTA 2021 • Rinaldo Gagiano, Maria Myung-Hee Kim, Xiuzhen Zhang, Jennifer Biggs
Grover is a model for both generation and detection of neural fake news.
1 code implementation • NAACL 2022 • Lin Tian, Xiuzhen Zhang, Jey Han Lau
Social media rumours, a form of misinformation, can mislead the public and cause significant economic and social disruption.
no code implementations • 20 Feb 2025 • Xuankai Yang, Yan Wang, Xiuzhen Zhang, Shoujin Wang, Huaxiong Wang, Kwok Yan Lam
Secondly, we propose a macro-hierarchical transfer learning module to generate engagement features based on common users' shared behaviors in different domains for improving effectiveness of knowledge transfer.
no code implementations • 2 Jan 2025 • Shuo Yu, Yingbo Wang, Ruolin Li, Guchun Liu, Yanming Shen, Shaoxiong Ji, Bowen Li, Fengling Han, Xiuzhen Zhang, Feng Xia
In this paper, we present a comprehensive review of methodologies for applying LLMs to graphs, termed LLM4graph.
no code implementations • 2 Oct 2024 • Zhenyue Qin, Yu Yin, Dylan Campbell, Xuansheng Wu, Ke Zou, Yih-Chung Tham, Ninghao Liu, Xiuzhen Zhang, Qingyu Chen
The prevalence of vision-threatening eye diseases is a significant global burden, with many cases remaining undiagnosed or diagnosed too late for effective treatment.
1 code implementation • 24 Jul 2024 • An Quang Tang, Xiuzhen Zhang, Minh Ngoc Dinh
This paper presents our proposed approach to the Discharge Me!
no code implementations • 19 Jul 2024 • An Quang Tang, Xiuzhen Zhang, Minh Ngoc Dinh, Erik Cambria
A majority of KPA studies for reviews adopt supervised learning to extract short sentences as KPs before matching KPs to review comments for quantification of KP prevalence.
no code implementations • 27 May 2024 • Renqiang Luo, Huafei Huang, Shuo Yu, Zhuoyang Han, Estrid He, Xiuzhen Zhang, Feng Xia
We explore the correlation between sensitive features and spectrum in GNNs, using theoretical analysis to delineate the similarity between original sensitive features and those after convolution under different spectra.
1 code implementation • 26 Apr 2024 • Renqiang Luo, Huafei Huang, Shuo Yu, Xiuzhen Zhang, Feng Xia
The design of Graph Transformers (GTs) generally neglects considerations for fairness, resulting in biased outcomes against certain sensitive subgroups.
1 code implementation • 13 Feb 2024 • Lin Tian, Xiuzhen Zhang, Jey Han Lau
We apply causal mediation analysis to explain the decision-making process of neural models for rumour detection on Twitter.
Ranked #1 on
Rumour Detection
on 1
(using extra training data)
no code implementations • 13 Feb 2024 • Jin Li, Shoujin Wang, Qi Zhang, Longbing Cao, Fang Chen, Xiuzhen Zhang, Dietmar Jannach, Charu C. Aggarwal
However, emerging vulnerabilities in RS have catalyzed a paradigm shift towards Trustworthy RS (TRS).
no code implementations • 1 Feb 2024 • Nannan Huang, Haytham Fayek, Xiuzhen Zhang
In this study, using political bias as a case study, we first establish a methodology to quantify bias in abstractive models, then trace it from the pre-trained models to the task of summarising social media opinions using different models and adaptation methods.
1 code implementation • 28 Jan 2024 • Xiaofei Xu, Ke Deng, Michael Dann, Xiuzhen Zhang
This study aims to minimize the influence of fake news on social networks by deploying debunkers to propagate true news.
no code implementations • 13 Nov 2023 • Sishun Liu, Ke Deng, Yan Wang, Xiuzhen Zhang
To efficiently solve \acrshort{ehd}, we rewrite the task into a \gls{01ip} and directly estimate the solution to the program by a model called \acrfull{model}.
no code implementations • 17 Oct 2023 • Shiwei Zhang, Mingfang Wu, Xiuzhen Zhang
To the best of our knowledge, we are introducing, for the first time, an in-context learning method that harnesses large language models for automated subject metadata annotation.
1 code implementation • 4 Aug 2023 • Sishun Liu, Ke Deng, Xiuzhen Zhang, Yongli Ren
In the marked temporal point processes (MTPP), a core problem is to parameterize the conditional joint PDF (probability distribution function) $p^*(m, t)$ for inter-event time $t$ and mark $m$, conditioned on the history.
no code implementations • 12 Jun 2023 • Huong Ha, Vu Nguyen, Hung Tran-The, Hongyu Zhang, Xiuzhen Zhang, Anton Van Den Hengel
To address this issue, we propose a new BO method that can sub-linearly converge to the objective function's global optimum even when the true GP hyperparameters are unknown in advance and need to be estimated from the observed data.
no code implementations • 7 Jun 2023 • Nannan Huang, Lin Tian, Haytham Fayek, Xiuzhen Zhang
We found that BART and ChatGPT can better capture diverse opinions presented in the source documents.
1 code implementation • 13 Mar 2023 • Lin Tian, Xiuzhen Zhang, Jey Han Lau
State-sponsored trolls are the main actors of influence campaigns on social media and automatic troll detection is important to combat misinformation at scale.
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 • 22 May 2022 • Shoujin Wang, Qi Zhang, Liang Hu, Xiuzhen Zhang, Yan Wang, Charu Aggarwal
In recent years, sequential recommender systems (SRSs) and session-based recommender systems (SBRSs) have emerged as a new paradigm of RSs to capture users' short-term but dynamic preferences for enabling more timely and accurate recommendations.
no code implementations • ALTA 2021 • Shiwei Zhang, Xiuzhen Zhang
Fine-tuning pre-trained language models for downstream tasks has become a norm for NLP.
no code implementations • 27 Sep 2021 • Lin Tian, Xiuzhen Zhang, Jey Han Lau
Most rumour detection models for social media are designed for one specific language (mostly English).
1 code implementation • 2 Jan 2021 • Yassien Shaalan, Xiuzhen Zhang, Jeffrey Chan, Mahsa Salehi
Meanwhile, opinion spams spread widely and the detection of spam reviews becomes critically important for ensuring the integrity of the echo system of online reviews.
1 code implementation • 9 Jul 2020 • Shiwei Zhang, Xiuzhen Zhang, Jey Han Lau, Jeffrey Chan, Cecile Paris
In the literature, PQA is formulated as a retrieval problem with the goal to search for the most relevant reviews to answer a given product question.
no code implementations • 27 May 2020 • Yao Zhang, Xiuzhen Zhang, Dengji Zhao
We study a question answering problem on a social network, where a requester is seeking an answer from the agents on the network.
Computer Science and Game Theory
no code implementations • ALTA 2019 • Wenyi Tay, Aditya Joshi, Xiuzhen Zhang, Sarvnaz Karimi, Stephen Wan
Opinion summarisation requires to correctly pair two types of semantic information: (1) aspect or opinion target; and (2) polarity of candidate and reference summaries.
no code implementations • ACL 2018 • Min Peng, Qianqian Xie, Yanchun Zhang, Hua Wang, Xiuzhen Zhang, Jimin Huang, Gang Tian
Topic models with sparsity enhancement have been proven to be effective at learning discriminative and coherent latent topics of short texts, which is critical to many scientific and engineering applications.