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Graph data structures offer a versatile and powerful means to model relationships and interconnections in various domains, promising substantial advantages in data representation, analysis, and visualization. In games, graph-based data…

机器学习 · 计算机科学 2024-09-10 Florian Rupp , Kai Eckert

Spatial reasoning in text plays a crucial role in various real-world applications. Existing approaches for spatial reasoning typically infer spatial relations from pure text, which overlooks the gap between natural language and symbolic…

计算与语言 · 计算机科学 2024-03-11 Shuaiyi Li , Yang Deng , Wai Lam

Subgraph matching, which finds subgraphs isomorphic to a query, is the key to information retrieval from data represented as a graph. To avoid redundant exploration in the data, existing methods restrict the search space by extracting…

数据库 · 计算机科学 2023-06-13 Junya Arai , Yasuhiro Fujiwara , Makoto Onizuka

CAPTCHAs based on reading text are susceptible to machine-learning-based attacks due to recent significant advances in deep learning (DL). To address this, this paper promotes image/visual captioning based CAPTCHAs, which is robust against…

计算与语言 · 计算机科学 2018-09-27 Qiuyuan Huang , Paul Smolensky , Xiaodong He , Li Deng , Dapeng Wu

To develop effective and efficient graph similarity learning (GSL) models, a series of data-driven neural algorithms have been proposed in recent years. Although GSL models are frequently deployed in privacy-sensitive scenarios, the user…

机器学习 · 计算机科学 2022-10-24 Yupeng Hou , Wayne Xin Zhao , Yaliang Li , Ji-Rong Wen

Inspired by the generation power of generative adversarial networks (GANs) in image domains, we introduce a novel hierarchical architecture for learning characteristic topological features from a single arbitrary input graph via GANs. The…

社会与信息网络 · 计算机科学 2019-10-10 Weiyi Liu , Hal Cooper , Min Hwan Oh , Sailung Yeung , Pin-Yu Chen , Toyotaro Suzumura , Lingli Chen

One intriguing property of deep neural networks (DNNs) is their inherent vulnerability to backdoor attacks -- a trojan model responds to trigger-embedded inputs in a highly predictable manner while functioning normally otherwise. Despite…

机器学习 · 计算机科学 2021-08-11 Zhaohan Xi , Ren Pang , Shouling Ji , Ting Wang

Recent advances in text-to-speech, particularly those based on Graph Neural Networks (GNNs), have significantly improved the expressiveness of short-form synthetic speech. However, generating human-parity long-form speech with high dynamic…

声音 · 计算机科学 2023-10-10 Dake Guo , Xinfa Zhu , Liumeng Xue , Tao Li , Yuanjun Lv , Yuepeng Jiang , Lei Xie

Retrieval-Augmented Generation (RAG) enhances Large Language Models (LLMs) by providing external knowledge for accurate and up-to-date responses. However, this reliance on external sources exposes a security risk, attackers can inject…

计算与语言 · 计算机科学 2025-07-25 San Kim , Jonghwi Kim , Yejin Jeon , Gary Geunbae Lee

Graph Neural Networks(GNNs) are vulnerable to backdoor attacks, where adversaries implant malicious triggers to manipulate model predictions. Existing trigger generators are often simplistic in structure and overly reliant on specific…

密码学与安全 · 计算机科学 2026-05-06 Dongyi Liu , Jiangtong Li

The escalating complexity of network threats and the inherent class imbalance in traffic data present formidable challenges for modern Intrusion Detection Systems (IDS). While Graph Neural Networks (GNNs) excel in modeling topological…

机器学习 · 计算机科学 2026-04-15 Tianxiang Xu , Zhichao Wen , Xinyu Zhao , Qi Hu , Yan Li , Chang Liu

Tangled Program Graph (TPG) is a reinforcement learning technique based on genetic programming concepts. On state-of-the-art learning environments, TPGs have been shown to offer comparable competence with Deep Neural Networks (DNNs), for a…

神经与进化计算 · 计算机科学 2020-12-16 Karol Desnos , Nicolas Sourbier , Pierre-Yves Raumer , Olivier Gesny , Maxime Pelcat

Graph Convolutional Networks (GCNs) have shown strong performance in learning text representations for various tasks such as text classification, due to its expressive power in modeling graph structure data (e.g., a literature citation…

计算与语言 · 计算机科学 2023-05-12 Zhibin Lu , Qianqian Xie , Benyou Wang , Jian-yun Nie

Graph coarsening reduces the size of a graph while preserving certain properties. Most existing methods preserve either spectral or spatial characteristics. Recent research has shown that preserving topological features helps maintain the…

机器学习 · 计算机科学 2026-02-02 Xiang Wu , Rong-Hua Li , Xunkai Li , Kangfei Zhao , Hongchao Qin , Guoren Wang

Compared to sequential learning models, graph-based neural networks exhibit some excellent properties, such as ability capturing global information. In this paper, we investigate graph-based neural networks for text classification problem.…

计算与语言 · 计算机科学 2020-02-27 Xien Liu , Xinxin You , Xiao Zhang , Ji Wu , Ping Lv

Graph data, with its structurally variable nature, represents complex real-world phenomena like chemical compounds, protein structures, and social networks. Traditional Graph Neural Networks (GNNs) primarily utilize the message-passing…

机器学习 · 计算机科学 2025-02-05 Jianming Huang , Hiroyuki Kasai

In this work we study the topological properties of temporal hypergraphs. Hypergraphs provide a higher dimensional generalization of a graph that is capable of capturing multi-way connections. As such, they have become an integral part of…

计算几何 · 计算机科学 2023-02-07 Audun Myers , Cliff Joslyn , Bill Kay , Emilie Purvine , Gregory Roek , Madelyn Shapiro

Graph neural networks (GNNs) have been increasingly deployed in various applications that involve learning on non-Euclidean data. However, recent studies show that GNNs are vulnerable to graph adversarial attacks. Although there are several…

机器学习 · 计算机科学 2023-01-10 Chenhui Deng , Xiuyu Li , Zhuo Feng , Zhiru Zhang

Network & internet security is the burning question of today's world and they are deeply related to each other for secure successful data transmission. Network security approach is totally based on the concept of network security services.…

密码学与安全 · 计算机科学 2015-06-22 Sanjay Majumder , Sanjay Chakraborty , Suman Das

Signed graphs model complex relationships through positive and negative edges, with widespread real-world applications. Given the sensitive nature of such data, selective removal mechanisms have become essential for privacy protection.…

机器学习 · 计算机科学 2025-11-19 Junpeng Zhao , Lin Li , Kaixi Hu , Kaize Shi , Jingling Yuan