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Reticulate events play an important role in determining evolutionary relationships. The problem of computing the minimum number of such events to explain discordance between two phylogenetic trees is a hard computational problem. Even for…

种群与进化 · 定量生物学 2014-05-02 Leo van Iersel , Steven Kelk , Nela Lekić , Celine Scornavacca

Rug pull scams have emerged as a persistent threat to cryptocurrency, causing significant financial losses. A typical scenario involves scammers deploying honeypot contracts to attract investments, restricting token sales, and draining the…

软件工程 · 计算机科学 2025-07-09 Hao Wu , Haijun Wang , Shangwang Li , Yin Wu , Ming Fan , Wuxia Jin , Ting Liu

Complex Event Recognition (CER) systems are a prominent technology for finding user-defined query patterns over large data streams in real time. CER query evaluation is known to be computationally challenging, since it requires maintaining…

数据库 · 计算机科学 2022-05-30 Marco Bucchi , Alejandro Grez , Andrés Quintana , Cristian Riveros , Stijn Vansummeren

In this paper a new formulation of event recognition task is examined: it is required to predict event categories in a gallery of images, for which albums (groups of photos corresponding to a single event) are unknown. We propose the novel…

计算机视觉与模式识别 · 计算机科学 2020-01-16 Andrey V. Savchenko

Spectral Clustering is a popular technique to split data points into groups, especially for complex datasets. The algorithms in the Spectral Clustering family typically consist of multiple separate stages (such as similarity matrix…

机器学习 · 计算机科学 2019-11-04 Yifei Wang , Rui Liu , Yong Chen , Hui Zhangs , Zhiwen Ye

Cluster deletion is an NP-hard graph clustering objective with applications in computational biology and social network analysis, where the goal is to delete a minimum number of edges to partition a graph into cliques. We first provide a…

数据结构与算法 · 计算机科学 2024-04-26 Vicente Balmaseda , Ying Xu , Yixin Cao , Nate Veldt

The estimation of crowd count in images has a wide range of applications such as video surveillance, traffic monitoring, public safety and urban planning. Recently, the convolutional neural network (CNN) based approaches have been shown to…

计算机视觉与模式识别 · 计算机科学 2018-05-16 Xinghao Ding , Zhirui Lin , Fujin He , Yu Wang , Yue Huang

Real-time crime forecasting is important. However, accurate prediction of when and where the next crime will happen is difficult. No known physical model provides a reasonable approximation to such a complex system. Historical crime data…

机器学习 · 计算机科学 2017-11-27 Bao Wang , Penghang Yin , Andrea L. Bertozzi , P. Jeffrey Brantingham , Stanley J. Osher , Jack Xin

Averaging amplitudes over consecutive time samples within a time-window is widely used to calculate the amplitude of an event-related potential (ERP) for cognitive neuroscience. Objective determination of the time-window is critical for…

神经元与认知 · 定量生物学 2019-11-22 Reza Mahini , Peng Xu , Guoliang Chen , Yansong Li , Weiyan Ding , Lei Zhang , Nauman Khalid Qureshi , Asoke K. Nandi , Fengyu Cong

Graphs are a powerful mathematical model, and they are used to represent real-world structures in various fields. In many applications, real-world structures with high connectivity and robustness are preferable. For enhancing the…

社会与信息网络 · 计算机科学 2023-06-13 Fanchen Bu , Kijung Shin

Despite the enormous amount of data, particular events of interest can still be quite rare. Classification of rare events is a common problem in many domains, such as fraudulent transactions, malware traffic analysis and network intrusion…

机器学习 · 计算机科学 2021-01-01 Ivan Letteri , Antonio Di Cecco , Abeer Dyoub , Giuseppe Della Penna

Across many areas, from neural tracking to database entity resolution, manual assessment of clusters by human experts presents a bottleneck in rapid development of scalable and specialized clustering methods. To solve this problem we…

机器学习 · 统计学 2020-03-20 Hanlin Zhu , Xue Li , Liuyang Sun , Fei He , Zhengtuo Zhao , Lan Luan , Ngoc Mai Tran , Chong Xie

Clique counts reveal important properties about the structure of massive graphs, especially social networks. The simple setting of just 3-cliques (triangles) has received much attention from the research community. For larger cliques (even,…

社会与信息网络 · 计算机科学 2018-08-29 Shweta Jain , C. Seshadhri

Analyzing crime events is crucial to understand crime dynamics and it is largely helpful for constructing prevention policies. Point processes specified on linear networks can provide a more accurate description of crime incidents by…

应用统计 · 统计学 2026-01-21 Sujeong Lee , Won Chang , Jorge Mateu , Heejin Lee , Jaewoo Park

This paper focuses on modeling violent crime rates against population over the years 1960-2014 for the United States via cubic spline based method. We propose a new min/max algorithm on knots detection and estimation for cubic spline…

应用统计 · 统计学 2018-04-19 Eric Golinko , Lianfen Qian

Spectral clustering has been one of the widely used methods for community detection in networks. However, large-scale networks bring computational challenges to the eigenvalue decomposition therein. In this paper, we study the spectral…

社会与信息网络 · 计算机科学 2022-01-07 Hai Zhang , Xiao Guo , Xiangyu Chang

Distribution-level phasor measurement units, a.k.a, micro-PMUs, report a large volume of high resolution phasor measurements which constitute a variety of event signatures of different phenomena that occur all across power distribution…

信号处理 · 电气工程与系统科学 2021-03-08 Armin Aligholian , Alireza Shahsavari , Emma Stewart , Ed Cortez , Hamed Mohsenian-Rad

Temporal repetition counting aims to estimate the number of cycles of a given repetitive action. Existing deep learning methods assume repetitive actions are performed in a fixed time-scale, which is invalid for the complex repetitive…

计算机视觉与模式识别 · 计算机科学 2020-05-19 Huaidong Zhang , Xuemiao Xu , Guoqiang Han , Shengfeng He

For the past decades we have experienced an enormous expansion of the accumulated data that humanity produces. Daily a numerous number of smart devices, usually interconnected over internet, produce vast, real-values datasets. Time series…

人工智能 · 计算机科学 2020-01-08 Konstantinos F. Xylogiannopoulos

The life course perspective in criminology has become prominent last years, offering valuable insights into various patterns of criminal offending and pathways. The study of criminal trajectories aims to understand the beginning,…

统计方法学 · 统计学 2024-08-30 Alisson C. C. Silva , Fábio N. Demarqui , Bráulio F. Silva , Marcos O. Prates
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