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In this paper, we investigate community detection in networks in the presence of node covariates. In many instances, covariates and networks individually only give a partial view of the cluster structure. One needs to jointly infer the full…

统计方法学 · 统计学 2018-04-26 Bowei Yan , Purnamrita Sarkar

Overlapping community detection (OCD) is a fundamental graph data analysis task for extracting graph patterns. Traditional OCD methods can be broadly divided into node clustering and link clustering approaches, both of which rely solely on…

社会与信息网络 · 计算机科学 2025-08-05 Shaozhen Ma , Hanchen Wang , Dong Wen , Wenjie Zhang , Wei Huang , Ying Zhang

Inference of community structure in probabilistic graphical models may not be consistent with fairness constraints when nodes have demographic attributes. Certain demographics may be over-represented in some detected communities and…

机器学习 · 统计学 2026-02-23 Davoud Ataee Tarzanagh , Laura Balzano , Alfred O. Hero

Community detection in online social networks has been a hot research topic in recent years. Meanwhile, to enjoy more social network services, users nowadays are usually involved in multiple online social networks simultaneously, some of…

社会与信息网络 · 计算机科学 2015-06-19 Jiawei Zhang , Philip S. Yu

We consider the problem of detecting a tight community in a sparse random network. This is formalized as testing for the existence of a dense random subgraph in a random graph. Under the null hypothesis, the graph is a realization of an…

统计理论 · 数学 2014-09-26 Ery Arias-Castro , Nicolas Verzelen

Shared-account Cross-domain Sequential recommendation (SCSR) is the task of recommending the next item based on a sequence of recorded user behaviors, where multiple users share a single account, and their behaviours are available in…

信息检索 · 计算机科学 2021-05-10 Lei Guo , Li Tang , Tong Chen , Lei Zhu , Quoc Viet Hung Nguyen , Hongzhi Yin

Given a time-evolving network, how can we detect communities over periods of high internal and low external interactions? To address this question we generalize traditional local community detection in graphs to the setting of dynamic…

社会与信息网络 · 计算机科学 2017-09-14 Daniel J. DiTursi , Gaurav Ghosh , Petko Bogdanov

Community is a universal structure in various complex networks, and community detection is a fundamental task for network analysis. With the rapid growth of network scale, networks are massive, changing rapidly and could naturally be…

社会与信息网络 · 计算机科学 2021-10-29 Yanhao Yang , Meng Wang , David Bindel , Kun He

Detecting and characterizing dense subgraphs (tight communities) in social and information networks is an important exploratory tool in social network analysis. Several approaches have been proposed that either (i) partition the whole…

社会与信息网络 · 计算机科学 2012-10-12 Marco Pellegrini , Filippo Geraci , Miriam Baglioni

Given entities and their interactions in the web data, which may have occurred at different time, how can we find communities of entities and track their evolution? In this paper, we approach this important task from graph clustering…

社会与信息网络 · 计算机科学 2023-03-29 Namyong Park , Ryan Rossi , Eunyee Koh , Iftikhar Ahamath Burhanuddin , Sungchul Kim , Fan Du , Nesreen Ahmed , Christos Faloutsos

Networks (or graphs) appear as dominant structures in diverse domains, including sociology, biology, neuroscience and computer science. In most of the aforementioned cases graphs are directed - in the sense that there is directionality on…

社会与信息网络 · 计算机科学 2015-06-16 Fragkiskos D. Malliaros , Michalis Vazirgiannis

Community detection is a fundamental problem in machine learning. While deep learning has shown great promise in many graphrelated tasks, developing neural models for community detection has received surprisingly little attention. The few…

机器学习 · 计算机科学 2019-09-27 Oleksandr Shchur , Stephan Günnemann

The community plays a crucial role in understanding user behavior and network characteristics in social networks. Some users can use multiple social networks at once for a variety of objectives. These users are called overlapping users who…

社会与信息网络 · 计算机科学 2024-05-08 Ziqing Zhu , Guan Yuan , Tao Zhou , Jiuxin Cao

Graphs are widely used in various fields of computer science. They have also found application in unrelated areas, leading to a diverse range of problems. These problems can be modeled as relationships between entities in various contexts,…

数据结构与算法 · 计算机科学 2024-05-20 Davide Rucci

Social networks facilitate the social space where actors or the users have ties among them. The ties and their patterns are based on their life styles and communication. Similarly, in online social media networks like Facebook, Twitter,…

社会与信息网络 · 计算机科学 2019-04-11 Victor Stany Rozario , A. Z. M. Ehtesham Chowdhury , Muhammad Sarwar Jahan Morshed

Community detection is an important task in network analysis. A community (also referred to as a cluster) is a set of cohesive vertices that have more connections inside the set than outside. In many social and information networks, these…

社会与信息网络 · 计算机科学 2015-04-06 Joyce Jiyoung Whang , David F. Gleich , Inderjit S. Dhillon

Data sparsity, that is a common problem in neighbor-based collaborative filtering domain, usually complicates the process of item recommendation. This problem is more serious in collaborative ranking domain, in which calculating the users…

社会与信息网络 · 计算机科学 2017-02-01 Bita Shams , Saman Haratizadeh

In many real-world applications, the evolving relationships between entities can be modeled as temporal graphs, where each edge has a timestamp representing the interaction time. As a fundamental problem in graph analysis, {\it community…

信息检索 · 计算机科学 2025-06-04 Yue Zhang , Yankai Chen , Yingli Zhou , Yucan Guo , Xiaolin Han , Chenhao Ma

In standard graph clustering/community detection, one is interested in partitioning the graph into more densely connected subsets of nodes. In contrast, the "search" problem of this paper aims to only find the nodes in a "single" such…

社会与信息网络 · 计算机科学 2018-06-22 Avik Ray , Sujay Sanghavi , Sanjay Shakkottai

In this paper, we consider sparse networks consisting of a finite number of non-overlapping communities, i.e. disjoint clusters, so that there is higher density within clusters than across clusters. Both the intra- and inter-cluster edge…

社会与信息网络 · 计算机科学 2014-11-06 Se-Young Yun , Marc Lelarge , Alexandre Proutiere