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In point cloud analysis tasks, the existing local feature aggregation descriptors (LFAD) are unable to fully utilize information in the neighborhood of central points. Previous methods rely solely on Euclidean distance to constrain the…

计算机视觉与模式识别 · 计算机科学 2023-03-22 Haotian Hu , Fanyi Wang , Jingwen Su , Hongtao Zhou , Yaonong Wang , Laifeng Hu , Yanhao Zhang , Zhiwang Zhang

Organizations are increasingly moving towards the cloud computing paradigm, in which an on-demand access to a pool of shared configurable resources is provided. However, security challenges, which are particularly exacerbated by the…

密码学与安全 · 计算机科学 2025-02-06 Muhamad Felemban , Abdulrahman Almutairi , Arif Ghafoor

Advanced Persistent Threats (APTs) represent a significant challenge in cybersecurity due to their sophisticated and stealthy nature. Traditional Intrusion Detection Systems (IDS) often fall short in detecting these multi-stage attacks.…

密码学与安全 · 计算机科学 2025-01-08 Atmane Ayoub Mansour Bahar , Kamel Soaid Ferrahi , Mohamed-Lamine Messai , Hamida Seba , Karima Amrouche

The Transformer architecture, underpinned by the self-attention mechanism, has become the de facto standard for sequence modeling tasks. However, its core computational primitive scales quadratically with sequence length (O(N^2)), creating…

计算与语言 · 计算机科学 2025-09-03 Rishiraj Acharya

Technology trends will cause data movement to account for the majority of energy expenditure and execution time on emerging computers. Therefore, computational complexity will no longer be a sufficient metric for comparing algorithms, and a…

计算复杂性 · 计算机科学 2014-11-11 Venmugil Elango , Fabrice Rastello , Louis-Noel Pouchet , J. Ramanujam , P. Sadayappan

Community detection plays a pivotal role in uncovering closely connected subgraphs, aiding various real-world applications such as recommendation systems and anomaly detection. With the surge of rich information available for entities in…

社会与信息网络 · 计算机科学 2024-11-05 Anran Zhang , Xingfen Wang , Yuhan Zhao

In-process compartmentalization and access control have been actively explored to provide in-place and efficient isolation of in-process security domains. Many works have proposed compartmentalization schemes that leverage hardware…

密码学与安全 · 计算机科学 2023-09-21 Kha Dinh Duy , Kyuwon Cho , Taehyun Noh , Hojoon Lee

In recent years, cloud storage technology has been widely used in many fields such as education, business, medical and more because of its convenience and low cost. With the widespread applications of cloud storage technology, data access…

密码学与安全 · 计算机科学 2018-11-09 Jingwei Liu , Huifang Tang , Chaoya Li , Rong Sun , Xiaojiang Du , Mohsen Guizani

Gradient-based adversarial attacks are widely used to evaluate the robustness of 3D point cloud classifiers, yet they often rely on uniform update rules that neglect point-wise heterogeneity, leading to perceptible perturbations. We propose…

计算机视觉与模式识别 · 计算机科学 2026-03-20 Jun Chen , Xinke Li , Mingyue Xu , Chongshou Li , Truiani Li

The high-dimensional features extracted from large-scale unlabeled data via various pretrained models with diverse architectures are referred to as heterogeneous multiview data. Most existing unsupervised transfer learning methods fail to…

计算机视觉与模式识别 · 计算机科学 2026-05-19 Jie Chen , Yuanbiao Gou , Chuanbin Liu , Zhu Wang , Xi Peng

A large number of cloud middleware platforms and tools are deployed to support a variety of Internet of Things (IoT) data analytics tasks. It is a common practice that such cloud platforms are only used by its owners to achieve their…

网络与互联网体系结构 · 计算机科学 2016-06-28 Prem Prakash Jayaraman , Charith Perera , Dimitrios Georgakopoulos , Schahram Dustdar , Dhavalkumar Thakker , Rajiv Ranjan

Neural networks achieve strong empirical performance, but robustness concerns still hinder deployment in safety-critical applications. Formal verification provides robustness guarantees, but current methods face a scalability-completeness…

机器学习 · 计算机科学 2026-02-06 Wenting Li , Saif R. Kazi , Russell Bent , Duo Zhou , Huan Zhang

Identifying anomalies in multi-dimensional datasets is an important task in many real-world applications. A special case arises when anomalies are occluded in a small set of attributes, typically referred to as a subspace, and not…

机器学习 · 计算机科学 2021-01-14 Marcelo Bacher , Irad Ben-Gal , Erez Shmueli

With significant annotation savings, point supervision has been proven effective for numerous 2D and 3D scene understanding problems. This success is primarily attributed to the structured output space; i.e., samples with high spatial…

计算机视觉与模式识别 · 计算机科学 2023-04-18 Leiyao Cui , Xiaoxue Chen , Hao Zhao , Guyue Zhou , Yixin Zhu

Unsupervised attributed graph representation learning is challenging since both structural and feature information are required to be represented in the latent space. Existing methods concentrate on learning latent representation via…

机器学习 · 计算机科学 2021-04-28 Zelin Zang , Siyuan Li , Di Wu , Jianzhu Guo , Yongjie Xu , Stan Z. Li

Independent microgrids are crucial for supplying electricity by combining distributed energy resources and loads in scenarios like isolated islands and field combat. Fast and accurate assessments of microgrid vulnerability against…

机器学习 · 计算机科学 2025-06-09 Wei Liu , Tao Zhang , Chenhui Lin , Kaiwen Li , Rui Wang

Current Cloud solutions for Edge Computing are inefficient for data-centric applications, as they focus on the IaaS/PaaS level and they miss the data modeling and operations perspective. Consequently, Edge Computing opportunities are lost…

分布式、并行与集群计算 · 计算机科学 2021-03-01 Vasileios Theodorou , Ilias Gerostathopoulos , Iyad Alshabani , Alberto Abello , David Breitgand

Processing 3D data efficiently has always been a challenge. Spatial operations on large-scale point clouds, stored as sparse data, require extra cost. Attracted by the success of transformers, researchers are using multi-head attention for…

计算机视觉与模式识别 · 计算机科学 2022-08-02 Mahdi Saleh , Yige Wang , Nassir Navab , Benjamin Busam , Federico Tombari

Advanced Persistent Threats (APTs) are sophisticated multi-step attacks, planned and executed by skilled adversaries targeting modern government and enterprise networks. Intrusion Detection Systems (IDSs) and User and Entity Behavior…

密码学与安全 · 计算机科学 2021-01-08 Hazem M. Soliman , Geoff Salmon , Dušan Sovilj , Mohan Rao

Graph-based retrieval-augmented generation (Graph RAG) is increasingly deployed to support LLM applications by augmenting user queries with structured knowledge retrieved from a knowledge graph. While Graph RAG improves relational…

密码学与安全 · 计算机科学 2026-02-09 Minkyoo Song , Jaehan Kim , Myungchul Kang , Hanna Kim , Seungwon Shin , Sooel Son