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The anonymity of blockchain has accelerated the growth of illegal activities and criminal behaviors on cryptocurrency platforms. Although decentralization is one of the typical characteristics of blockchain, we urgently call for effective…

社会与信息网络 · 计算机科学 2022-01-25 Jie Shen , Jiajun Zhou , Yunyi Xie , Shanqing Yu , Qi Xuan

Traffic forecasting is an essential problem in urban planning and computing. The complex dynamic spatial-temporal dependencies among traffic objects (e.g., sensors and road segments) have been calling for highly flexible models;…

机器学习 · 计算机科学 2023-08-14 Juyong Jiang , Binqing Wu , Ling Chen , Kai Zhang , Sunghun Kim

The rising popularity of online social network services has attracted lots of research on mining social media data, especially on mining social events. Social event detection, due to its wide applications, has now become a trivial task.…

人工智能 · 计算机科学 2022-05-25 Jiaqian Ren , Lei Jiang , Hao Peng , Zhiwei Liu , Jia Wu , Philip S. Yu

Graph convolutional networks (GCNs) have emerged as a powerful tool for skeleton-based action and gesture recognition, thanks to their ability to model spatial and temporal dependencies in skeleton data. However, existing GCN-based methods…

计算机视觉与模式识别 · 计算机科学 2025-03-31 Hu Cui , Renjing Huang , Ruoyu Zhang , Tessai Hayama

Graph representation learning resurges as a trending research subject owing to the widespread use of deep learning for Euclidean data, which inspire various creative designs of neural networks in the non-Euclidean domain, particularly…

Temporal graphs are widespread in real-world applications such as social networks, as well as trade and transportation networks. Predicting dynamic links within these evolving graphs is a key problem. Many memory-based methods use temporal…

机器学习 · 计算机科学 2025-12-16 Xiaohui Zhang , Yanbo Wang , Xiyuan Wang , Muhan Zhang

Graph Neural Networks (GNNs) have exhibited remarkable efficacy in diverse graph learning tasks, particularly on static homophilic graphs. Recent attention has pivoted towards more intricate structures, encompassing (1) static heterophilic…

机器学习 · 计算机科学 2025-01-14 Yuchen Yan , Yuzhong Chen , Huiyuan Chen , Xiaoting Li , Zhe Xu , Zhichen Zeng , Lihui Liu , Zhining Liu , Hanghang Tong

Seizure detection from EEGs is a challenging and time consuming clinical problem that would benefit from the development of automated algorithms. EEGs can be viewed as structural time series, because they are multivariate time series where…

机器学习 · 计算机科学 2019-05-07 Ian Covert , Balu Krishnan , Imad Najm , Jiening Zhan , Matthew Shore , John Hixson , Ming Jack Po

In the rapidly evolving domain of financial technology, the detection of illicit transactions within blockchain networks remains a critical challenge, necessitating robust and innovative solutions. This work proposes a novel approach by…

Anomalies often occur in real-world information networks/graphs, such as malevolent users, malicious comments, banned users, and fake news in social graphs. The latest graph anomaly detection methods use a novel mechanism called truncated…

社会与信息网络 · 计算机科学 2026-03-03 Xiong Zhang , Hong Peng , Zhenli He , Cheng Xie , Xin Jin , Hua Jiang

Graph convolutional networks (GCNs) have been very successful in modeling non-Euclidean data structures, like sequences of body skeletons forming actions modeled as spatio-temporal graphs. Most GCN-based action recognition methods use deep…

计算机视觉与模式识别 · 计算机科学 2021-04-26 Negar Heidari , Alexandros Iosifidis

Ethereum is currently the second largest blockchain by market capitalization and a popular platform for cryptocurrencies. As it has grown, the high value present and the anonymity afforded by the technology have led Ethereum to become a…

密码学与安全 · 计算机科学 2025-01-22 Calvin Josenhans , Andrey Kuehlkamp , Jarek Nabrzyski

Recently, graph embedding techniques have been widely used in the analysis of various networks, but most of the existing embedding methods omit the network dynamics and the multiplicity of edges, so it is difficult to accurately describe…

社会与信息网络 · 计算机科学 2021-01-07 Jiajing Wu , Dan Lin , Zibin Zheng , Qi Yuan

Blockchain technology supports the generation and record of transactions, and maintains the fairness and openness of the cryptocurrency system. However, many fraudsters utilize smart contracts to create fraudulent Ponzi schemes for…

密码学与安全 · 计算机科学 2022-06-17 Jie Jin , Jiajun Zhou , Chengxiang Jin , Shanqing Yu , Ziwan Zheng , Qi Xuan

The bug triaging process, an essential process of assigning bug reports to the most appropriate developers, is related closely to the quality and costs of software development. As manual bug assignment is a labor-intensive task, especially…

软件工程 · 计算机科学 2022-03-02 Hongrun Wu , Yutao Ma , Zhenglong Xiang , Chen Yang , Keqing He

Graph convolutional networks (GCNs) have been very successful in skeleton-based human action recognition where the sequence of skeletons is modeled as a graph. However, most of the GCN-based methods in this area train a deep feed-forward…

计算机视觉与模式识别 · 计算机科学 2021-04-28 Negar Heidari , Alexandros Iosifidis

Recently, there has been a substantial amount of interest in GNN-based anomaly detection. Existing efforts have focused on simultaneously mastering the node representations and the classifier necessary for identifying abnormalities with…

密码学与安全 · 计算机科学 2024-09-25 Ahmad Hafez

Graph convolutional networks (GCNs) have been employed as a kind of significant tool on many graph-based applications recently. Inspired by convolutional neural networks (CNNs), GCNs generate the embeddings of nodes by aggregating the…

机器学习 · 计算机科学 2020-11-20 Tao Huang , Yihan Zhang , Jiajing Wu , Junyuan Fang , Zibin Zheng

Many machine learning methods have been proposed to achieve accurate transaction fraud detection, which is essential to the financial security of individuals and banks. However, most existing methods leverage original features only or…

机器学习 · 计算机科学 2023-07-13 Yue Tian , Guanjun Liu , Jiacun Wang , Mengchu Zhou

Network intrusion detection is critical for securing modern networks, yet the complexity of network traffic poses significant challenges to traditional methods. This study proposes a Temporal Convolutional Network(TCN) model featuring a…

密码学与安全 · 计算机科学 2025-02-11 Rukmini Nazre , Rujuta Budke , Omkar Oak , Suraj Sawant , Amit Joshi