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Community search over heterogeneous information networks has been applied to wide domains, such as activity organization and team formation. From these scenarios, the members of a group with the same treatment often have different levels of…

Databases · Computer Science 2024-04-19 Taige Zhao , Jianxin Li , Ningning Cui , Wei Luo

Community search is a personalized community discovery problem designed to identify densely connected subgraphs containing the query node. Recently, community search in heterogeneous information networks (HINs) has received considerable…

Social and Information Networks · Computer Science 2024-07-23 Guoxin Chen , Fangda Guo , Yongqing Wang , Yanghao Liu , Peiying Yu , Huawei Shen , Xueqi Cheng

Influential community search (ICS) finds a set of densely connected and high-impact vertices from a social network. Although great effort has been devoted to ICS problems, most existing methods do not consider how relevant the influential…

Social and Information Networks · Computer Science 2025-04-10 Long Teng , Yanhao Wang , Zhe Lin , Fei Yu

Community search over large graphs is a fundamental problem in graph analysis. Recent studies propose to compute top-k influential communities, where each reported community not only is a cohesive subgraph but also has a high influence…

Databases · Computer Science 2017-12-15 Fei Bi , Lijun Chang , Xuemin Lin , Wenjie Zhang

Recently, the community search problem has attracted significant attention, due to its wide spectrum of real-world applications such as event organization, friend recommendation, advertisement in e-commence, and so on. Given a query vertex,…

Databases · Computer Science 2021-11-29 Ahmed Al-Baghdadi , Xiang Lian

The goal of community search in heterogeneous information networks (HINs) is to identify a set of closely related target nodes that includes a query target node. In practice, a size constraint is often imposed due to limited resources,…

Databases · Computer Science 2025-08-21 Xinjian Zhang , Lu Chen , Chengfei Liu , Rui Zhou , Bo Ning

Given a graph $G$ and a vertex $q\in G$, the community search (CS) problem aims to efficiently find a subgraph of $G$ whose vertices are closely related to $q$. Communities are prevalent in social and biological networks, and can be used in…

Databases · Computer Science 2019-01-18 Yankai Chen , Yixiang Fang , Reynold Cheng , Yun Li , Xiaojun Chen , Jie Zhang

Community Search (CS) aims to identify densely interconnected subgraphs corresponding to query vertices within a graph. However, existing heterogeneous graph-based community search methods need help identifying cross-group communities and…

Social and Information Networks · Computer Science 2024-01-22 JiaYi Du , Yinghao Wu , Wei Ai , Tao Meng , CanHao Xie , KeQin Li

With the rapid development of information technologies, various big graphs are prevalent in many real applications (e.g., social media and knowledge bases). An important component of these graphs is the network community. Essentially, a…

Databases · Computer Science 2019-08-14 Yixiang Fang , Xin Huang , Lu Qin , Ying Zhang , Wenjie Zhang , Reynold Cheng , Xuemin Lin

Community search is a widely studied semi-supervised graph clustering problem, retrieving a high-quality connected subgraph containing the user-specified query vertex. However, existing methods primarily focus on cohesiveness within the…

Social and Information Networks · Computer Science 2025-08-05 Longlong Lin , Yue He , Wei Chen , Pingpeng Yuan , Rong-Hua Li , Tao Jia

Bipartite graphs are widely used to model relationships between two types of entities. Community search retrieves densely connected subgraphs containing a query vertex, which has been extensively studied on unipartite graphs. However,…

Databases · Computer Science 2020-11-18 Kai Wang , Wenjie Zhang , Xuemin Lin , Ying Zhang , Lu Qin , Yuting Zhang

Community search aims to identify a refined set of nodes that are most relevant to a given query, supporting tasks ranging from fraud detection to recommendation. Unlike homophilic graphs, many real-world networks are heterophilic, where…

Social and Information Networks · Computer Science 2026-02-23 Qing Sima , Xiaoyang Wang , Wenjie Zhang

Community Search, or finding a connected subgraph (known as a community) containing the given query nodes in a social network, is a fundamental problem. Most of the existing community search models only focus on the internal cohesiveness of…

Social and Information Networks · Computer Science 2022-04-19 Junghoon Kim , Siqiang Luo , Gao Cong , Wenyuan Yu

Community search, retrieving the cohesive subgraph which contains the query vertex, has been widely touched over the past decades. The existing studies on community search mainly focus on static networks. However, real-world networks…

Social and Information Networks · Computer Science 2022-06-15 Yifei Zhang , Longlong Lin , Pingpeng Yuan , Hai Jin

Community detection in graphs has many important and fundamental applications including in distributed systems, compression, image segmentation, divide-and-conquer graph algorithms such as nested dissection, document and word clustering,…

Social and Information Networks · Computer Science 2019-06-18 Ryan A. Rossi , Nesreen K. Ahmed , Eunyee Koh , Sungchul Kim

Community detection plays a pivotal role in uncovering closely connected subgraphs, aiding various real-world applications such as recommendation systems and anomaly detection. With the surge of rich information available for entities in…

Social and Information Networks · Computer Science 2024-11-05 Anran Zhang , Xingfen Wang , Yuhan Zhao

Several approaches have been recently proposed for community search in bipartite graphs. These methods have shown promising results in identifying communities in real-world bipartite networks, such as social and biological networks. Given a…

Social and Information Networks · Computer Science 2026-04-09 Kovan A. Bavi , Xiang Lian

We introduce a novel keyword-aware influential community query KICQ that finds the most influential communities from an attributed graph, where an influential community is defined as a closely connected group of vertices having some…

Social and Information Networks · Computer Science 2022-09-14 Md. Saiful Islam , Mohammed Eunus Ali , Yong-Bin Kang , Timos Sellis , Farhana M. Choudhury

A common and important problem arising in the study of networks is how to divide the vertices of a given network into one or more groups, called communities, in such a way that vertices of the same community are more interconnected than…

Social and Information Networks · Computer Science 2014-12-04 James D. Wilson , Simi Wang , Peter J. Mucha , Shankar Bhamidi , Andrew B. Nobel

Hypergraphs, increasingly utilised for modelling complex and diverse relationships in modern networks, gain much attention representing intricate higher-order interactions. Among various challenges, cohesive subgraph discovery is one of the…

Social and Information Networks · Computer Science 2025-12-30 Song Kim , Dahee Kim , Taejoon Han , Junghoon Kim , Hyun Ji Jeong , Jungeun Kim
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