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Anomalies are strange data points; they usually represent an unusual occurrence. Anomaly detection is presented from the perspective of Wireless sensor networks. Different approaches have been taken in the past, as we will see, not only to…

机器学习 · 计算机科学 2017-08-30 Pelumi Oluwasanya

In many problems in data mining and machine learning, data items that need to be clustered or classified are not points in a high-dimensional space, but are distributions (points on a high dimensional simplex). For distributions, natural…

数据结构与算法 · 计算机科学 2007-07-13 Sudipto Guha , Andrew McGregor , Suresh Venkatasubramanian

Combining multi-criteria decision analysis and trend reversal discovery make it possible to extract globally optimal, or non-dominated, data in relation to several criteria, and then to observe their evolution according to a decision-making…

数据库 · 计算机科学 2025-08-15 Mickaël Martin Nevot

Sliding super point is a special host defined under sliding time window with which there are huge other hosts contact. It plays important roles in network security and management. But how to detect them in real time from nowadays high-speed…

分布式、并行与集群计算 · 计算机科学 2018-03-30 Jie Xu

Monitoring the behavior of automated real-time stream processing systems has become one of the most relevant problems in real world applications. Such systems have grown in complexity relying heavily on high dimensional input data, and data…

Big Data is the most popular emerging trends that becomes a blessing for human kinds and it is the necessity of day-to-day life. For example, Facebook. Every person involves with producing data either directly or indirectly. Thus, Big Data…

数据库 · 计算机科学 2019-03-18 Ripon Patgiri , Sabuzima Nayak , Samir Kumar Borgohain

In this paper we compare two probabilistic data structures for association queries derived from the well-known Bloom filter: the shifting Bloom filter (ShBF), and the spatial Bloom filter (SBF). With respect to the original data structure,…

数据结构与算法 · 计算机科学 2022-05-06 Luca Calderoni , Dario Maio , Paolo Palmieri

We propose that chaotic Glass networks (a class of piecewise-linear Ordinary Differential Equations) are good candidates for the design of true random number generators. A Glass network design has the advantage of involving only standard…

动力系统 · 数学 2025-02-14 Benjamin W. Wild , Roderick Edwards

A Bloom filter is a widely used data-structure for representing a set $S$ and answering queries of the form "Is $x$ in $S$?". By allowing some false positive answers (saying "yes" when the answer is in fact `no') Bloom filters use space…

数据结构与算法 · 计算机科学 2016-11-03 Mayank Goswami , Rasmus Pagh , Francesco Silvestri , Johan Sivertsen

We study index-based processing for connectivity queries within sliding windows on streaming graphs. These queries, which determine whether two vertices belong to the same connected component, are fundamental operations in real-time graph…

数据库 · 计算机科学 2024-06-14 Chao Zhang , Angela Bonifati , M. Tamer Özsu

A major challenge for matching-based depth estimation is to prevent mismatches in occlusion and smooth regions. An effective matching window satisfying three characteristics: texture richness, disparity consistency and anti-occlusion should…

计算机视觉与模式识别 · 计算机科学 2023-02-22 Ligen Shi , Chang Liu , Di He , Xing Zhao , Jun Qiu

We introduce the concepts of closed sets and closure operators as mathematical tools for the study of social networks. Dynamic networks are represented by transformations. It is shown that under continuous change/transformation, all…

组合数学 · 数学 2012-12-13 John L. Pfaltz

Denoising-based models, including diffusion and flow matching, have led to substantial advances in graph generation. Despite this progress, such models remain constrained by two fundamental limitations: a computational cost that scales…

机器学习 · 计算机科学 2026-04-02 Yoann Boget , Pablo Strasser , Alexandros Kalousis

Detecting and visualizing what are the most relevant changes in an evolving network is an open challenge in several domains. We present a fast algorithm that filters subsets of the strongest nodes and edges representing an evolving weighted…

社会与信息网络 · 计算机科学 2014-11-05 Przemyslaw A. Grabowicz , Luca Maria Aiello , Filippo Menczer

Bloom Filter is a probabilistic data structure for the membership query, and it has been intensely experimented in various fields to reduce memory consumption and enhance a system's performance. Bloom Filter is classified into two key…

数据结构与算法 · 计算机科学 2021-06-09 Sabuzima Nayak , Ripon Patgiri

We consider a requester who acquires a set of data (e.g. images) that is not owned by one party. In order to collect as many data as possible, crowdsourcing mechanisms have been widely used to seek help from the crowd. However, existing…

计算机科学与博弈论 · 计算机科学 2020-02-28 Wen Zhang , Yao Zhang , Dengji Zhao

Interactive high-performance computing is doubtlessly beneficial for many computational science and engineering applications whenever simulation results should be visually processed in real time, i.e. during the computation process.…

计算工程、金融与科学 · 计算机科学 2018-07-03 Ralf-Peter Mundani , Jérôme Frisch , Vasco Varduhn , Ernst Rank

Long interaction histories are central to modern recommender systems, yet training with long sequences is often dismissed as impractical under realistic memory and latency budgets. This work demonstrates that it is not only practical but…

机器学习 · 计算机科学 2026-04-15 Sayak Chakrabarty , Souradip Pal

We study algorithms for the sliding-window model, an important variant of the data-stream model, in which the goal is to compute some function of a fixed-length suffix of the stream. We extend the smooth-histogram framework of Braverman and…

数据结构与算法 · 计算机科学 2022-05-26 Robert Krauthgamer , David Reitblat

Inspired by the fruit-fly olfactory circuit, the Fly Bloom Filter [Dasgupta et al., 2018] is able to efficiently summarize the data with a single pass and has been used for novelty detection. We propose a new classifier (for binary and…

机器学习 · 计算机科学 2020-08-21 Kaushik Sinha , Parikshit Ram