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Motivated by a real-world vehicle routing application, we consider the maximum-weight independent set problem: Given a node-weighted graph, find a set of independent (mutually nonadjacent) nodes whose node-weight sum is maximum. Some of the…

Feature matching is a crucial task in the field of computer vision, which involves finding correspondences between images. Previous studies achieve remarkable performance using learning-based feature comparison. However, the pervasive…

计算机视觉与模式识别 · 计算机科学 2024-06-18 Yesheng Zhang , Xu Zhao

We propose a new approach, the calibrated nonparametric scan statistic (CNSS), for more accurate detection of anomalous patterns in large-scale, real-world graphs. Scan statistics identify connected subgraphs that are interesting or…

统计方法学 · 统计学 2022-06-28 Chunpai Wang , Daniel B. Neill , Feng Chen

This paper proposes a metric to measure the dissimilarity between graphs that may have a different number of nodes. The proposed metric extends the generalised optimal subpattern assignment (GOSPA) metric, which is a metric for sets, to…

社会与信息网络 · 计算机科学 2024-08-28 Jinhao Gu , Ángel F. García-Fernández , Robert E. Firth , Lennart Svensson

Background: High-throughput proteomics techniques, such as mass spectrometry (MS)-based approaches, produce very high-dimensional data-sets. In a clinical setting one is often interested in how mass spectra differ between patients of…

Temporal variations of apparent magnitude, called light curves, are observational statistics of interest captured by telescopes over long periods of time. Light curves afford the exploration of Space Domain Awareness (SDA) objectives such…

天体物理仪器与方法 · 物理学 2022-09-01 Imène R. Goumiri , Alec M. Dunton , Amanda L. Muyskens , Benjamin W. Priest , Robert E. Armstrong

To deal with high-dimensional unlabeled datasets in many areas, principal component analysis (PCA) has become a rising technique for unsupervised feature selection (UFS). However, most existing PCA-based methods only consider the structure…

最优化与控制 · 数学 2025-08-15 Xianchao Xiu , Chenyi Huang , Pan Shang , Wanquan Liu

We present the marginal unbiased score expansion (MUSE) method, an algorithm for generic high-dimensional hierarchical Bayesian inference. MUSE performs approximate marginalization over arbitrary non-Gaussian latent parameter spaces,…

宇宙学与河外天体物理 · 物理学 2022-06-01 Marius Millea , Uros Seljak

The gravitational wave signal from a compact object spiralling toward a massive black hole (MBH) is thought to be one of the most difficult sources to detect in the LISA data stream. Due to the large parameter space of possible signals and…

广义相对论与量子宇宙学 · 物理学 2009-06-25 Stanislav Babak , Jonathan R. Gair , Edward K. Porter

Radio pulsar timing array (PTA) experiments using millisecond pulsars (MSPs) are beginning to detect nHz gravitational waves (GWs). MSPs are bright GeV gamma-ray emitters, and all-sky monitoring of about 100 MSPs with the Fermi Large Area…

Data series similarity search is an important operation and at the core of several analysis tasks and applications related to data series collections. Despite the fact that data series indexes enable fast similarity search, all existing…

数据库 · 计算机科学 2020-09-23 Michele Linardi , Themis Palpanas

This work presents the first application of the method of Genetic Algorithms (GAs) to data analysis for the Laser Interferometer Space Antenna (LISA). In the low frequency regime of the LISA band there are expected to be tens of thousands…

广义相对论与量子宇宙学 · 物理学 2014-11-17 Jeff Crowder , Neil J. Cornish , Lucas Reddinger

This paper considers the task of performing binary search under noisy decisions, focusing on the application of target area localization. In the presence of noise, the classical partitioning approach of binary search is prone to error…

信息论 · 计算机科学 2025-05-01 Kaan Buyukkalayci , Merve Karakas , Xinlin Li , Christina Fragouli

Long-term precise timing of Galactic millisecond pulsars holds great promise for measuring the long-period (months-to-years) astrophysical gravitational waves. Several gravitational-wave observational programs, called Pulsar Timing Arrays…

天体物理学 · 物理学 2009-11-13 Rutger van Haasteren , Yuri Levin , Patrick McDonald , Tingting Lu

Frequent Subgraph Mining (FSM) is the process of identifying common subgraph patterns that surpass a predefined frequency threshold. While FSM is widely applicable in fields like bioinformatics, chemical analysis, and social network anomaly…

数据库 · 计算机科学 2024-04-03 Akshit Sharma , Sam Reinher , Dinesh Mehta , Bo Wu

We present an incremental search algorithm, called Lifelong-GLS, which combines the vertex efficiency of Lifelong Planning A* (LPA*) and the edge efficiency of Generalized Lazy Search (GLS) for efficient replanning on dynamic graphs where…

机器人学 · 计算机科学 2021-05-26 Jaein Lim , Siddhartha Srinivasa , Panagiotis Tsiotras

A random search process in a networked environment is governed by the time it takes to visit every node, termed the cover time. Often, a networked process does not proceed in isolation but competes with many instances of itself within the…

最优化与控制 · 数学 2018-06-13 Daniel B. Wilson , Ruth E. Baker , Francis G. Woodhouse

We demonstrate the use of automatic Bayesian inference for the analysis of LISA data sets. In particular we describe a new automatic Reversible Jump Markov Chain Monte Carlo method to evaluate the posterior probability density functions of…

广义相对论与量子宇宙学 · 物理学 2009-11-11 Alexander Stroeer , Jonathan Gair , Alberto Vecchio

The challenge of efficiently identifying anomalies in data sequences is an important statistical problem that now arises in many applications. Whilst there has been substantial work aimed at making statistical analyses robust to outliers,…

机器学习 · 统计学 2019-04-12 Alexander T. M. Fisch , Idris A. Eckley , Paul Fearnhead

Data mining techniques, including clustering and classification tasks, for the automatic information extraction from large datasets are increasingly demanded in several scientific fields. In particular, in the astrophysical field, large…

天体物理学 · 物理学 2015-06-24 M. Frailis , A. De Angelis , V. Roberto