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Persistent homology (PH) characterizes the shape of brain networks through persistence features. Group comparison of persistence features from brain networks can be challenging as they are inherently heterogeneous. A recent scale-space…

With the advances in high resolution neuroimaging, there has been a growing interest in the detection of functional brain connectivity. Complex network theory has been proposed as an attractive mathematical representation of functional…

神经与进化计算 · 计算机科学 2018-09-18 Arash Golibagh Mahyari , Selin Aviyente

The "clumpiness" matrix of a network is used to develop a method to identify its community structure. A "projection space" is constructed from the eigenvectors of the clumpiness matrix and a border line is defined using some kind of angular…

物理与社会 · 物理学 2015-05-28 Ali Faqeeh , Keivan Aghababaei Samani

Community detection is a critical challenge in analysing real graphs, including social, transportation, citation, cybersecurity, and many other networks. This article proposes three new, general, hierarchical frameworks to deal with this…

社会与信息网络 · 计算机科学 2023-05-25 Łukasz Brzozowski , Grzegorz Siudem , Marek Gagolewski

The human brain is a complex network of interconnected brain regions organized into functional modules with distinct roles in cognition and behavior. An important question concerns the persistence and stability of these modules over the…

神经元与认知 · 定量生物学 2015-10-28 Richard F. Betzel , Bratislav Mišić , Ye He , Jeffrey Rumschlag , Xi-Nian Zuo , Olaf Sporns

Recent studies have made great progress in functional brain network classification by modeling the brain as a network of Regions of Interest (ROIs) and leveraging their connections to understand brain functionality and diagnose mental…

神经元与认知 · 定量生物学 2025-07-22 Jiacheng Hou , Zhenjie Song , Ercan Engin Kuruoglu

The human connectome has been widely studied over the past decade. A principal finding is that it can be decomposed into communities of densely interconnected brain regions. This result, however, may be limited methodologically. Past…

We propose a robust, scalable, integrated methodology for community detection and community comparison in graphs. In our procedure, we first embed a graph into an appropriate Euclidean space to obtain a low-dimensional representation, and…

机器学习 · 统计学 2016-08-29 Vince Lyzinski , Minh Tang , Avanti Athreya , Youngser Park , Carey E. Priebe

Gene expression of social actions in Drosophilae has been attracting wide interest from biologists, medical scientists and psychologists. Gene-edited Drosophilae have been used as a test platform for experimental investigation. For example,…

计算机视觉与模式识别 · 计算机科学 2019-09-12 Khan Faraz , Ahmed Bouridane , Richard Jiang , Tiancheng Xia , Paul Chazot , Abdel Ennaceur

Clustering and community detection in networks are of broad interest and have been the subject of extensive research that spans several fields. We are interested in the relatively narrow question of detecting communities of scientific…

数字图书馆 · 计算机科学 2022-02-24 Eleanor Wedell , Minhyuk Park , Dmitriy Korobskiy , Tandy Warnow , George Chacko

Although the recent progress in the deep neural network has led to the development of learnable local feature descriptors, there is no explicit answer for estimation of the necessary size of a neural network. Specifically, the local feature…

机器学习 · 计算机科学 2017-06-19 Chong Huang , Qiong Liu , Yan-Ying Chen , Kwang-Ting , Cheng

Community detection remains an important problem in data mining, owing to the lack of scalable algorithms that exploit all aspects of available data - namely the directionality of flow of information and the dynamics thereof. Most existing…

社会与信息网络 · 计算机科学 2018-05-15 Rajagopal Venkatesaramani , Yevgeniy Vorobeychik

Local field potentials (LFPs) have been demonstrated to be an important measurement to study the activity of a local population of neurons. The response tunings of LFPs have been mostly reported as weaker and broader than spike tunings.…

信号处理 · 电气工程与系统科学 2025-10-23 Sahar Maleki , Reza Lashgari , Mahdi Aliyari Shoorehdeli , Mohammad Komareji

Community detection in network analysis aims at partitioning nodes in a network into $K$ disjoint communities. Most currently available algorithms assume that $K$ is known, but choosing a correct $K$ is generally very difficult for real…

统计方法学 · 统计学 2017-07-03 Chong Chen , Ruibin Xi , Nan Lin

Research has shown that neurons within the brain are selective to certain stimuli. For example, the fusiform face area (FFA) region is known by neuroscientists to selectively activate when people see faces over non-face objects. However,…

计算机视觉与模式识别 · 计算机科学 2021-03-24 Edward Kim , Maryam Daniali , Jocelyn Rego , Garrett T. Kenyon

One of the most widely studied problem in mining and analysis of complex networks is the detection of community structures. The problem has been extensively studied by researchers due to its high utility and numerous applications in various…

社会与信息网络 · 计算机科学 2016-07-29 Muhammad Qasim Pasta , Faraz Zaidi , Guy Melançon

Finding community structures in social networks is considered to be a challenging task as many of the proposed algorithms are computationally expensive and does not scale well for large graphs. Most of the community detection algorithms…

社会与信息网络 · 计算机科学 2023-01-30 Partha Basuchowdhuri , Satyaki Sikdar , Varsha Nagarajan , Khusbu Mishra , Surabhi Gupta , Subhashis Majumder

Community detection is a powerful tool from complex networks analysis that finds applications in various research areas. Several image segmentation methods rely for instance on community detection algorithms as a black box in order to…

计算机视觉与模式识别 · 计算机科学 2023-08-29 Anthony Perez

A fundamental problem in the analysis of network data is the detection of network communities, groups of densely interconnected nodes, which may be overlapping or disjoint. Here we describe a method for finding overlapping communities based…

社会与信息网络 · 计算机科学 2015-03-19 Brian Ball , Brian Karrer , M. E. J. Newman

Recognizing number of communities and detecting community structures of complex network are discussed in this paper. As a visual and feasible algorithm, block model has been successfully applied to detect community structures in complex…

物理与社会 · 物理学 2018-03-20 Hongjue Wang , Tao Wang