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Graph neural networks (GNNs) are widely applied in graph data modeling. However, existing GNNs are often trained in a task-driven manner that fails to fully capture the intrinsic nature of the graph structure, resulting in sub-optimal node…

机器学习 · 计算机科学 2024-07-17 Zhenhua Huang , Kunhao Li , Shaojie Wang , Zhaohong Jia , Wentao Zhu , Sharad Mehrotra

Modeling event sequences of multiple event types with marked temporal point processes (MTPPs) provides a principled way to uncover governing dynamical rules and predict future events. Current neural network approaches to MTPP inference rely…

机器学习 · 计算机科学 2026-03-02 David Berghaus , Patrick Seifner , Kostadin Cvejoski , César Ojeda , Ramsés J. Sánchez

Deep neural networks (DNNs) offer significant promise for improving breast cancer diagnosis in medical imaging. However, these models are highly susceptible to adversarial attacks--small, imperceptible changes that can mislead…

计算机视觉与模式识别 · 计算机科学 2024-12-16 Yasamin Medghalchi , Moein Heidari , Clayton Allard , Leonid Sigal , Ilker Hacihaliloglu

Inspired by the impressive capabilities of GPT-4o, there is growing interest in enabling speech language models (SLMs) to engage in natural, fluid spoken interactions with humans. Recent advancements have led to the development of several…

计算与语言 · 计算机科学 2025-06-12 Qichao Wang , Ziqiao Meng , Wenqian Cui , Yifei Zhang , Pengcheng Wu , Bingzhe Wu , Irwin King , Liang Chen , Peilin Zhao

Online news platforms often use personalized news recommendation methods to help users discover articles that align with their interests. These methods typically predict a matching score between a user and a candidate article to reflect the…

信息检索 · 计算机科学 2023-04-18 Xinyi Li , Yongfeng Zhang , Edward C. Malthouse

Internet boards are platforms for online discussions about a variety of topics. On these boards, individuals may start a new thread on a specific matter, or leave comments in an existing discussion. The resulting collective process leads to…

社会与信息网络 · 计算机科学 2020-06-05 Alexey N. Medvedev , Jean-Charles Delvenne , Renaud Lambiotte

This paper describes our proposed method for the Workshop on Computational Approaches to Subjectivity, Sentiment & Social Media Analysis (WASSA) 2022 shared task on Personality Prediction (PER) and Reactivity Index Prediction (IRI). In this…

计算与语言 · 计算机科学 2022-05-20 Bin Li , Yixuan Weng

To alleviate the data scarcity problem in training question answering systems, recent works propose additional intermediate pre-training for dense passage retrieval (DPR). However, there still remains a large discrepancy between the…

计算与语言 · 计算机科学 2022-04-13 Jiawei Zhou , Xiaoguang Li , Lifeng Shang , Lan Luo , Ke Zhan , Enrui Hu , Xinyu Zhang , Hao Jiang , Zhao Cao , Fan Yu , Xin Jiang , Qun Liu , Lei Chen

Recommender systems help users deal with information overload by providing tailored item suggestions to them. The recommendation of news is often considered to be challenging, since the relevance of an article for a user can depend on a…

信息检索 · 计算机科学 2019-12-10 Gabriel de Souza Pereira Moreira , Dietmar Jannach , Adilson Marques da Cunha

For energy-efficient computation in specialized neuromorphic hardware, we present spiking neural coding, an instantiation of a family of artificial neural models grounded in the theory of predictive coding. This model, the first of its…

神经与进化计算 · 计算机科学 2022-08-09 Alexander Ororbia

Temporal networks have gained significant prominence in the past decade for modelling dynamic interactions within complex systems. A key challenge in this domain is Temporal Link Prediction (TLP), which aims to forecast future connections…

人工智能 · 计算机科学 2025-03-03 Jiafeng Xiong , Ahmad Zareie , Rizos Sakellariou

In this paper we developed a hierarchical network model, called Hierarchical Prediction Network (HPNet), to understand how spatiotemporal memories might be learned and encoded in the recurrent circuits in the visual cortical hierarchy for…

神经与进化计算 · 计算机科学 2021-10-04 Jielin Qiu , Ge Huang , Tai Sing Lee

Prompt-based learning paradigm bridges the gap between pre-training and fine-tuning, and works effectively under the few-shot setting. However, we find that this learning paradigm inherits the vulnerability from the pre-training stage,…

计算与语言 · 计算机科学 2022-04-12 Lei Xu , Yangyi Chen , Ganqu Cui , Hongcheng Gao , Zhiyuan Liu

Large language models (LLMs) have shown remarkable performance across a range of NLP tasks. However, their strong instruction-following capabilities and inability to distinguish instructions from data content make them vulnerable to…

密码学与安全 · 计算机科学 2025-10-07 Yulin Chen , Haoran Li , Yuexin Li , Yue Liu , Yangqiu Song , Bryan Hooi

Large Language Models (LLMs) presents significant priority in text understanding and generation. However, LLMs suffer from the risk of generating harmful contents especially while being employed to applications. There are several black-box…

计算与语言 · 计算机科学 2023-12-11 Chengyuan Liu , Fubang Zhao , Lizhi Qing , Yangyang Kang , Changlong Sun , Kun Kuang , Fei Wu

In many interesting cases, the application of machine learning is hindered by data having a complicated structure stimulated by a structured file-formats like JSONs, XMLs, or ProtoBuffers, which is non-trivial to convert to a vector /…

密码学与安全 · 计算机科学 2020-02-12 Tomas Pevny , Marek Dedic

Predictive pattern mining is an approach used to construct prediction models when the input is represented by structured data, such as sets, graphs, and sequences. The main idea behind predictive pattern mining is to build a prediction…

机器学习 · 统计学 2023-06-26 Takumi Yoshida , Hiroyuki Hanada , Kazuya Nakagawa , Kouichi Taji , Koji Tsuda , Ichiro Takeuchi

As the use of social platforms continues to evolve, in areas such as cyber-security and defence, it has become imperative to develop adaptive methods for tracking, identifying and investigating cyber-related activities on these platforms.…

信息检索 · 计算机科学 2020-06-24 Ruth Ikwu , Panos Louisvieris

In this paper, we try to solve the problem of temporal link prediction in information networks. This implies predicting the time it takes for a link to appear in the future, given its features that have been extracted at the current network…

机器学习 · 计算机科学 2017-06-22 Sina Sajadmanesh , Jiawei Zhang , Hamid R. Rabiee

Incivility remains a major challenge for online discussion platforms, to such an extent that even conversations between well-intentioned users can often derail into uncivil behavior. Traditionally, platforms have relied on moderators to --…

人机交互 · 计算机科学 2022-12-06 Jonathan P. Chang , Charlotte Schluger , Cristian Danescu-Niculescu-Mizil