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Cyber-security garnered significant attention due to the increased dependency of individuals and organizations on the Internet and their concern about the security and privacy of their online activities. Several previous machine learning…

密码学与安全 · 计算机科学 2020-08-11 MohammadNoor Injadat , Abdallah Moubayed , Ali Bou Nassif , Abdallah Shami

Feature selection is a critical step in the analysis of high-dimensional data, where the number of features often vastly exceeds the number of samples. Effective feature selection not only improves model performance and interpretability but…

机器学习 · 计算机科学 2025-01-27 Raquel Espinosa , Gracia Sánchez , José Palma , Fernando Jiménez

Feature selection aims to preprocess the target dataset, find an optimal and most streamlined feature subset, and enhance the downstream machine learning task. Among filter, wrapper, and embedded-based approaches, the reinforcement learning…

人工智能 · 计算机科学 2025-09-17 Weiliang Zhang , Xiaohan Huang , Yi Du , Ziyue Qiao , Qingqing Long , Zhen Meng , Yuanchun Zhou , Meng Xiao

Websites, as essential digital assets, are highly vulnerable to cyberattacks because of their high traffic volume and the significant impact of breaches. This study aims to enhance the identification of web traffic attacks by leveraging…

密码学与安全 · 计算机科学 2024-12-24 Daniel Urda , Branly Martínez , Nuño Basurto , Meelis Kull , Ángel Arroyo , Álvaro Herrero

The increase in scale of cyber networks and the rise in sophistication of cyber-attacks have introduced several challenges in intrusion detection. The primary challenge is the requirement to detect complex multi-stage attacks in realtime by…

密码学与安全 · 计算机科学 2023-02-01 Yahya Javed , Mosab A. Khayat , Ali A. Elghariani , Arif Ghafoor

An inherently parallel algorithm is proposed that efficiently performs selection: finding the K-th largest member of a set of N members. Selection is a common component of many more complex algorithms and therefore is a widely studied…

数据结构与算法 · 计算机科学 2007-06-15 Greg Sepesi

Online selection of dynamic features has attracted intensive interest in recent years. However, existing online feature selection methods evaluate features individually and ignore the underlying structure of feature stream. For instance, in…

计算机视觉与模式识别 · 计算机科学 2016-08-23 Jing Wang , Meng Wang , Peipei Li , Luoqi Liu , Zhongqiu Zhao , Xuegang Hu , Xindong Wu

We study active feature selection, a novel feature selection setting in which unlabeled data is available, but the budget for labels is limited, and the examples to label can be actively selected by the algorithm. We focus on feature…

机器学习 · 计算机科学 2021-12-30 Shachar Schnapp , Sivan Sabato

This paper studies an attacker against a cyber-physical system (CPS) whose goal is to move the state of a CPS to a target state while ensuring that his or her probability of being detected does not exceed a given bound. The attacker's…

最优化与控制 · 数学 2017-03-31 Yuan Chen , Soummya Kar , José M. F. Moura

High-performance computing (HPC) requires resilience techniques such as checkpointing in order to tolerate failures in supercomputers. As the number of nodes and memory in supercomputers keeps on increasing, the size of checkpoint data also…

分布式、并行与集群计算 · 计算机科学 2019-06-13 Kai Keller , Leonardo Bautista Gomez

This paper focuses on density-based clustering, particularly the Density Peak (DP) algorithm and the one based on density-connectivity DBSCAN; and proposes a new method which takes advantage of the individual strengths of these two methods…

机器学习 · 计算机科学 2024-01-30 Ye Zhu , Kai Ming Ting , Yuan Jin , Maia Angelova

Dataset distillation is an emerging dataset reduction method, which condenses large-scale datasets while maintaining task accuracy. Current parameterization methods achieve enhanced performance under extremely high compression ratio by…

计算机视觉与模式识别 · 计算机科学 2025-03-20 Xinhao Zhong , Hao Fang , Bin Chen , Xulin Gu , Meikang Qiu , Shuhan Qi , Shu-Tao Xia

Cluster-based algorithm selection deals with selecting recommendation algorithms on clusters of users to obtain performance gains. No studies have been attempted for many combinations of clustering approaches and recommendation algorithms.…

信息检索 · 计算机科学 2024-05-29 Andreas Lizenberger , Ferdinand Pfeifer , Bastian Polewka

Intrusion detection systems (IDS) are widely studied by researchers nowadays due to the dramatic growth in network-based technologies. Policy violations and unauthorized access is in turn increasing which makes intrusion detection systems…

网络与互联网体系结构 · 计算机科学 2015-07-27 Yasmen Wahba , Ehab ElSalamouny , Ghada ElTaweel

Choosing which properties of the data to use as input to multivariate decision algorithms -- a.k.a. feature selection -- is an important step in solving any problem with machine learning. While there is a clear trend towards training…

高能物理 - 唯象学 · 物理学 2022-12-02 Ranit Das , Gregor Kasieczka , David Shih

High dimensionality in datasets produced by microarray technology presents a challenge for Machine Learning (ML) algorithms, particularly in terms of dimensionality reduction and handling imbalanced sample sizes. To mitigate the explained…

Establishing a sparse set of keypoint correspon dences between images is a fundamental task in many computer vision pipelines. Often, this translates into a computationally expensive nearest neighbor search, where every keypoint descriptor…

计算机视觉与模式识别 · 计算机科学 2022-08-11 Emanuele Santellani , Christian Sormann , Mattia Rossi , Andreas Kuhn , Friedrich Fraundorfer

We propose a multi-phase approach to explore network structures. In this method, structure analysis is not carried out on the observed network directly. Instead, certain similarity measures of the nodes are derived from the network firstly,…

物理与社会 · 物理学 2009-07-03 Xiaofeng Gong , Shuguang Guan , C. -H. Lai

Machine learning techniques are immensely deployed in both industry and academy. Recent studies indicate that machine learning models used for classification tasks are vulnerable to adversarial examples, which limits the usage of…

计算机视觉与模式识别 · 计算机科学 2020-07-14 Yutong Gao , Yi Pan

Clustering is an essential technique for discovering patterns in data. The steady increase in amount and complexity of data over the years led to improvements and development of new clustering algorithms. However, algorithms that can…

机器学习 · 统计学 2021-03-03 Shu Wang , Jonathan G. Yabes , Chung-Chou H. Chang