Tootfinder

livemocha: Livemocha friendship network (2010)
A network of friendships among users on Livemocha, a large online language learning community. Nodes represent users and edges represent a mutual declaration of friendship.
This network has 104103 nodes and 2193083 edges.
Tags: Social, Online, Unweighted
https://ne…

Preserving Core Structures of Social Networks via Information Guided Multi-Step Graph Pruning
Yutong Hu, Bingxin Zhou, Jing Wang, Weishu Zhao, Liang Hong
https://arxiv.org/abs/2510.10499

Preserving Core Structures of Social Networks via Information Guided Multi-Step Graph Pruning
Social networks often contain dense and overlapping connections that obscure their essential interaction patterns, making analysis and interpretation challenging. Identifying the structural backbone of such networks is crucial for understanding community organization, information flow, and functional relationships. This study introduces a multi-step network pruning framework that leverages principles from information theory to balance structural complexity and task-relevant information. The fra…

Non-linear associations of amyloid-$\beta$ with resting-state functional networks and their cognitive relevance in a large community-based cohort of cognitively normal older adults
Junjie Wu, Benjamin B Risk, Taylor A James, Nicholas Seyfried, David W Loring, Felicia C Goldstein, Allan I Levey, James J Lah, Deqiang Qiu
https://arxiv.org/ab…

Non-linear associations of amyloid-$β$ with resting-state functional networks and their cognitive relevance in a large community-based cohort of cognitively normal older adults
Background: Non-linear alterations in brain network connectivity may represent early neural signatures of Alzheimer's disease (AD) pathology in cognitively normal older adults. Understanding these changes and their cognitive relevance could provide sensitive biomarkers for early detection. Most prior studies recruited participants from memory clinics, often with subjective memory concerns, limiting generalizability. Methods: We examined 14 large-scale functional brain networks in 968 cognitiv…

Beyond the Silence: How Men Navigate Infertility Through Digital Communities and Data Sharing
Tawfiq Ammari, Zarah Khondoker, Yihan Wang, Nikki Roda
https://arxiv.org/abs/2509.10003

Beyond the Silence: How Men Navigate Infertility Through Digital Communities and Data Sharing
Men experiencing infertility face unique challenges navigating Traditional Masculinity Ideologies that discourage emotional expression and help-seeking. This study examines how Reddit's r/maleinfertility community helps overcome these barriers through digital support networks. Using topic modeling (115 topics), network analysis (11 micro-communities), and time-lagged regression on 11,095 posts and 79,503 comments from 8,644 users, we found the community functions as a hybrid space: informal dia…

soc_net_comms: Networks with group metadata
Snapshots of LiveJournal, Friendster, Orkut, and YouTube online social networks, as well as DBLP and Amazon. Node metadata represents a post hoc definition of a 'community' that a node belongs to, derived from topical labels of the node or interest-based 'groups' that a node links to.
This network has 317080 nodes and 1049866 edges.
Tags: Online, Social, Collaboration, Informational, Relatedness, Unweighted, Metada…

livemocha: Livemocha friendship network (2010)
A network of friendships among users on Livemocha, a large online language learning community. Nodes represent users and edges represent a mutual declaration of friendship.
This network has 104103 nodes and 2193083 edges.
Tags: Social, Online, Unweighted
https://ne…

Fine-Grained Urban Traffic Forecasting on Metropolis-Scale Road Networks
Fedor Velikonivtsev, Oleg Platonov, Gleb Bazhenov, Liudmila Prokhorenkova
https://arxiv.org/abs/2510.02278

Fine-Grained Urban Traffic Forecasting on Metropolis-Scale Road Networks
Traffic forecasting on road networks is a complex task of significant practical importance that has recently attracted considerable attention from the machine learning community, with spatiotemporal graph neural networks (GNNs) becoming the most popular approach. The proper evaluation of traffic forecasting methods requires realistic datasets, but current publicly available benchmarks have significant drawbacks, including the absence of information about road connectivity for road graph constru…

DynBenchmark: Customizable Ground Truths to Benchmark Community Detection and Tracking in Temporal Networks
Laurent Brisson (IMT Atlantique - DSD), C\'ecile Bothorel (IMT Atlantique - DSD), Nicolas Duminy (IMT Atlantique, IMT Atlantique - DSD)
https://arxiv.org/abs/2510.06245

DynBenchmark: Customizable Ground Truths to Benchmark Community Detection and Tracking in Temporal Networks
Graph models help understand network dynamics and evolution. Creating graphs with controlled topology and embedded partitions is a common strategy for evaluating community detection algorithms. However, existing benchmarks often overlook the need to track the evolution of communities in real-world networks. To address this, a new community-centered model is proposed to generate customizable evolving community structures where communities can grow, shrink, merge, split, appear or disappear. This…

advogato: Advogato trust network (2009)
A network of trust relationships among users on Advogato, an online community of open source software developers. Edge direction indicates that node i trusts node j, and edge weight denotes one of four increasing levels of declared trust from i to j: observer (0.4), apprentice (0.6), journeyer (0.8), and master (1.0).
This network has 6541 nodes and 51127 edges.
Tags: Social, Online, Weighted

Hybrid Quantum-Classical Walks for Graph Representation Learning in Community Detection
Adri\'an Mar{\i}n, Mauricio Soto-Gomez, Giorgio Valentini, Elena Casiraghi, Carlos Cano, Daniel Manzano
https://arxiv.org/abs/2510.01918

Hybrid Quantum-Classical Walks for Graph Representation Learning in Community Detection
Graph Representation Learning (GRL) has emerged as a cornerstone technique for analysing complex, networked data across diverse domains, including biological systems, social networks, and data analysis. Traditional GRL methods often struggle to capture intricate relationships within complex graphs, particularly those exhibiting non-trivial structural properties such as power-law distributions or hierarchical structures. This paper introduces a novel quantum-inspired algorithm for GRL, utilizing…

NEW PROGRAM> The Contemplative Semester (including college credit) https://networks.h-net.org/group/announcements/20127061/contemplative-semester-including-college-credit

Demystifying the Evolution of Neural Networks with BOM Analysis: Insights from a Large-Scale Study of 55,997 GitHub Repositories
Xiaoning Ren, Yuhang Ye, Xiongfei Wu, Yueming Wu, Yinxing Xue
https://arxiv.org/abs/2509.20010

Demystifying the Evolution of Neural Networks with BOM Analysis: Insights from a Large-Scale Study of 55,997 GitHub Repositories
Neural networks have become integral to many fields due to their exceptional performance. The open-source community has witnessed a rapid influx of neural network (NN) repositories with fast-paced iterations, making it crucial for practitioners to analyze their evolution to guide development and stay ahead of trends. While extensive research has explored traditional software evolution using Software Bill of Materials (SBOMs), these are ill-suited for NN software, which relies on pre-defined mod…

dolphins: Dolphin social network (1994-2001)
An undirected social network of frequent associations observed among 62 dolphins (Tursiops) in a community living off Doubtful Sound, New Zealand, from 1994-2001.
This network has 62 nodes and 159 edges.
Tags: Social, Animal, Unweighted
https://networks.skewed.de/net/dolphins…

Gremban Expansion for Signed Networks: Algebraic and Combinatorial Foundations for Community-Faction Detection
Fernando Diaz-Diaz, Karel Devriendt, Renaud Lambiotte
https://arxiv.org/abs/2509.14193

Gremban Expansion for Signed Networks: Algebraic and Combinatorial Foundations for Community-Faction Detection
This article deals with the characterization and detection of community and faction structures in signed networks. We approach the study of these mesoscale structures through the lens of the Gremban expansion. This graph operation lifts a signed graph to a larger unsigned graph, and allows the extension of standard techniques from unsigned to signed graphs. We develop the combinatorial and algebraic properties of the Gremban expansion, with a focus on its inherent involutive symmetry. The main …

Community detection robustness of graph neural networks
Jaidev Goel, Pablo Moriano, Ramakrishnan Kannan, Yulia R. Gel
https://arxiv.org/abs/2509.24662 https://

Community detection robustness of graph neural networks
Graph neural networks (GNNs) are increasingly widely used for community detection in attributed networks. They combine structural topology with node attributes through message passing and pooling. However, their robustness or lack of thereof with respect to different perturbations and targeted attacks in conjunction with community detection tasks is not well understood. To shed light into latent mechanisms behind GNN sensitivity on community detection tasks, we conduct a systematic computationa…

dolphins: Dolphin social network (1994-2001)
An undirected social network of frequent associations observed among 62 dolphins (Tursiops) in a community living off Doubtful Sound, New Zealand, from 1994-2001.
This network has 62 nodes and 159 edges.
Tags: Social, Animal, Unweighted
https://networks.skewed.de/net/dolphins…

Replaced article(s) found for physics.data-an. https://arxiv.org/list/physics.data-an/new
[1/1]:
- Overlapping community detection in weighted networks
Huan Qing

livemocha: Livemocha friendship network (2010)
A network of friendships among users on Livemocha, a large online language learning community. Nodes represent users and edges represent a mutual declaration of friendship.
This network has 104103 nodes and 2193083 edges.
Tags: Social, Online, Unweighted
https://ne…

Contrastive Network Representation Learning
Zihan Dong, Xin Zhou, Ryumei Nakada, Lexin Li, Linjun Zhang
https://arxiv.org/abs/2509.11316 https://arxiv.org/…

Contrastive Network Representation Learning
Network representation learning seeks to embed networks into a low-dimensional space while preserving the structural and semantic properties, thereby facilitating downstream tasks such as classification, trait prediction, edge identification, and community detection. Motivated by challenges in brain connectivity data analysis that is characterized by subject-specific, high-dimensional, and sparse networks that lack node or edge covariates, we propose a novel contrastive learning-based statistic…

Replaced article(s) found for cs.SI. https://arxiv.org/list/cs.SI/new
[1/1]:
- Overlapping community detection in weighted networks
Huan Qing
https://

Detectability Thresholds for Network Attacks on Static Graphs and Temporal Networks: Information-Theoretic Limits and Nearly-Optimal Tests
Abdulkader Hajjouz, Elena Avksentieva
https://arxiv.org/abs/2509.10925

Detectability Thresholds for Network Attacks on Static Graphs and Temporal Networks: Information-Theoretic Limits and Nearly-Optimal Tests
We develop a consolidated theory for the detectability of network-borne attacks under two canonical observation models: (i) a static graph drawn from an Erdos-Renyi background with a planted anomalous community, and (ii) a temporal interaction network modeled by multivariate point processes (Poisson or Hawkes). Our main contribution is to match, up to universal constants, information-theoretic lower and upper bounds that govern when reliable testing is possible. In the static case, the core qua…

Fast and Optimal Incremental Parametric Procedure for the Densest Subgraph Problem: An Experimental Study
Dorit S. Hochbaum, Ayleen Irribarra-Cort\'es, Olivier Goldschmidt, Roberto As\'in-Ach\'a
https://arxiv.org/abs/2509.14993

Fast and Optimal Incremental Parametric Procedure for the Densest Subgraph Problem: An Experimental Study
The Densest Subgraph Problem (DSP) is widely used to identify community structures and patterns in networks such as bioinformatics and social networks. While solvable in polynomial time, traditional exact algorithms face computational and scalability limitations, leading to the adoption of faster, but non-optimal, heuristic methods. This work presents the first experimental study of the recently devised Incremental Parametric Cut (IPC) algorithm, which is an exact method for DSP and other "mono…

dolphins: Dolphin social network (1994-2001)
An undirected social network of frequent associations observed among 62 dolphins (Tursiops) in a community living off Doubtful Sound, New Zealand, from 1994-2001.
This network has 62 nodes and 159 edges.
Tags: Social, Animal, Unweighted
https://networks.skewed.de/net/dolphins…

soc_net_comms: Networks with group metadata
Snapshots of LiveJournal, Friendster, Orkut, and YouTube online social networks, as well as DBLP and Amazon. Node metadata represents a post hoc definition of a 'community' that a node belongs to, derived from topical labels of the node or interest-based 'groups' that a node links to.
This network has 317080 nodes and 1049866 edges.
Tags: Online, Social, Collaboration, Informational, Relatedness, Unweighted, Metada…

Radio Propagation Modelling: To Differentiate or To Deep Learn, That Is The Question
Stefanos Bakirtzis, Paul Almasan, Jos\'e Su\'arez-Varela, Gabriel O. Ferreira, Michail Kalntis, Andr\'e Felipe Zanella, Ian Wassell, Andra Lutu
https://arxiv.org/abs/2509.19337

Radio Propagation Modelling: To Differentiate or To Deep Learn, That Is The Question
Differentiable ray tracing has recently challenged the status quo in radio propagation modelling and digital twinning. Promising unprecedented speed and the ability to learn from real-world data, it offers a real alternative to conventional deep learning (DL) models. However, no experimental evaluation on production-grade networks has yet validated its assumed scalability or practical benefits. This leaves mobile network operators (MNOs) and the research community without clear guidance on its …

advogato: Advogato trust network (2009)
A network of trust relationships among users on Advogato, an online community of open source software developers. Edge direction indicates that node i trusts node j, and edge weight denotes one of four increasing levels of declared trust from i to j: observer (0.4), apprentice (0.6), journeyer (0.8), and master (1.0).
This network has 6541 nodes and 51127 edges.
Tags: Social, Online, Weighted

Discovering Communities in Continuous-Time Temporal Networks by Optimizing L-Modularity
Victor Brabant, Angela Bonifati, R\'emy Cazabet
https://arxiv.org/abs/2510.00741 http…

Discovering Communities in Continuous-Time Temporal Networks by Optimizing L-Modularity
Community detection is a fundamental problem in network analysis, with many applications in various fields. Extending community detection to the temporal setting with exact temporal accuracy, as required by real-world dynamic data, necessitates methods specifically adapted to the temporal nature of interactions. We introduce LAGO, a novel method for uncovering dynamic communities by greedy optimization of Longitudinal Modularity, a specific adaptation of Modularity for continuous-time networks.…

escorts: Brazilian prostitution network (2010)
A bipartite network of escort and individuals who buy sex from them in Brazil, extracted from a Brazilian online community for such ratings. Edges represent a purchase of sexual intercourse with an escort, and the edge weight gives the buyer's rating of the escort: -1 (bad), 0 (neutral), or 1 (good). Other edge attributes are available. Edges are timestamped.
This network has 16730 nodes and 50632 edges.
Tags: Social, Publ…

add_health: Adolescent health (ADD HEALTH) (1994)
A directed network of friendships obtained through a social survey of high school students in 1994. The ADD HEALTH data are constructed from the in-school questionnaire; 90,118 students representing 84 communities took this survey in 1994-95. Some communities had only one school; others had two. Where there are two schools in a community students from one school were allowed to name friends in the other, the "sister school".…

advogato: Advogato trust network (2009)
A network of trust relationships among users on Advogato, an online community of open source software developers. Edge direction indicates that node i trusts node j, and edge weight denotes one of four increasing levels of declared trust from i to j: observer (0.4), apprentice (0.6), journeyer (0.8), and master (1.0).
This network has 6541 nodes and 51127 edges.
Tags: Social, Online, Weighted

escorts: Brazilian prostitution network (2010)
A bipartite network of escort and individuals who buy sex from them in Brazil, extracted from a Brazilian online community for such ratings. Edges represent a purchase of sexual intercourse with an escort, and the edge weight gives the buyer's rating of the escort: -1 (bad), 0 (neutral), or 1 (good). Other edge attributes are available. Edges are timestamped.
This network has 16730 nodes and 50632 edges.
Tags: Social, Publ…

livemocha: Livemocha friendship network (2010)
A network of friendships among users on Livemocha, a large online language learning community. Nodes represent users and edges represent a mutual declaration of friendship.
This network has 104103 nodes and 2193083 edges.
Tags: Social, Online, Unweighted
https://ne…

Hybrid Graph Embeddings and Louvain Algorithm for Unsupervised Community Detection
Dalila Khettaf, Djamel Djenouri, Zeinab Rezaeifar, Youcef Djenouri
https://arxiv.org/abs/2509.23411

Hybrid Graph Embeddings and Louvain Algorithm for Unsupervised Community Detection
This paper proposes a novel community detection method that integrates the Louvain algorithm with Graph Neural Networks (GNNs), enabling the discovery of communities without prior knowledge. Compared to most existing solutions, the proposed method does not require prior knowledge of the number of communities. It enhances the Louvain algorithm using node embeddings generated by a GNN to capture richer structural and feature information. Furthermore, it introduces a merging algorithm to refine th…

Energy-Aware 6G Network Design: A Survey
Rashmi Kamran, Mahesh Ganesh Bhat, Pranav Jha, Shana Moothedath, Manjesh Hanawal, Prasanna Chaporkar
https://arxiv.org/abs/2509.11289 ht…

Energy-Aware 6G Network Design: A Survey
6th Generation (6G) mobile networks are envisioned to support several new capabilities and data-centric applications for unprecedented number of users, potentially raising significant energy efficiency and sustainability concerns. This brings focus on sustainability as one of the key objectives in the their design. To move towards sustainable solution, research and standardization community is focusing on several key issues like energy information monitoring and exposure, use of renewable energ…

soc_net_comms: Networks with group metadata
Snapshots of LiveJournal, Friendster, Orkut, and YouTube online social networks, as well as DBLP and Amazon. Node metadata represents a post hoc definition of a 'community' that a node belongs to, derived from topical labels of the node or interest-based 'groups' that a node links to.
This network has 334863 nodes and 925872 edges.
Tags: Online, Social, Collaboration, Informational, Relatedness, Unweighted, Metadat…

livemocha: Livemocha friendship network (2010)
A network of friendships among users on Livemocha, a large online language learning community. Nodes represent users and edges represent a mutual declaration of friendship.
This network has 104103 nodes and 2193083 edges.
Tags: Social, Online, Unweighted
https://ne…

escorts: Brazilian prostitution network (2010)
A bipartite network of escort and individuals who buy sex from them in Brazil, extracted from a Brazilian online community for such ratings. Edges represent a purchase of sexual intercourse with an escort, and the edge weight gives the buyer's rating of the escort: -1 (bad), 0 (neutral), or 1 (good). Other edge attributes are available. Edges are timestamped.
This network has 16730 nodes and 50632 edges.
Tags: Social, Publ…

dolphins: Dolphin social network (1994-2001)
An undirected social network of frequent associations observed among 62 dolphins (Tursiops) in a community living off Doubtful Sound, New Zealand, from 1994-2001.
This network has 62 nodes and 159 edges.
Tags: Social, Animal, Unweighted
https://networks.skewed.de/net/dolphins…

add_health: Adolescent health (ADD HEALTH) (1994)
A directed network of friendships obtained through a social survey of high school students in 1994. The ADD HEALTH data are constructed from the in-school questionnaire; 90,118 students representing 84 communities took this survey in 1994-95. Some communities had only one school; others had two. Where there are two schools in a community students from one school were allowed to name friends in the other, the "sister school".…

escorts: Brazilian prostitution network (2010)
A bipartite network of escort and individuals who buy sex from them in Brazil, extracted from a Brazilian online community for such ratings. Edges represent a purchase of sexual intercourse with an escort, and the edge weight gives the buyer's rating of the escort: -1 (bad), 0 (neutral), or 1 (good). Other edge attributes are available. Edges are timestamped.
This network has 16730 nodes and 50632 edges.
Tags: Social, Publ…

livemocha: Livemocha friendship network (2010)
A network of friendships among users on Livemocha, a large online language learning community. Nodes represent users and edges represent a mutual declaration of friendship.
This network has 104103 nodes and 2193083 edges.
Tags: Social, Online, Unweighted
https://ne…

Crosslisted article(s) found for cs.SI. https://arxiv.org/list/cs.SI/new
[1/1]:
- Governing Together: Toward Infrastructure for Community-Run Social Media
Hwang, Rollins, Nunes, Liu, Wong, Shaw, Monroy-Hern\'andez

advogato: Advogato trust network (2009)
A network of trust relationships among users on Advogato, an online community of open source software developers. Edge direction indicates that node i trusts node j, and edge weight denotes one of four increasing levels of declared trust from i to j: observer (0.4), apprentice (0.6), journeyer (0.8), and master (1.0).
This network has 6541 nodes and 51127 edges.
Tags: Social, Online, Weighted

advogato: Advogato trust network (2009)
A network of trust relationships among users on Advogato, an online community of open source software developers. Edge direction indicates that node i trusts node j, and edge weight denotes one of four increasing levels of declared trust from i to j: observer (0.4), apprentice (0.6), journeyer (0.8), and master (1.0).
This network has 6541 nodes and 51127 edges.
Tags: Social, Online, Weighted

dolphins: Dolphin social network (1994-2001)
An undirected social network of frequent associations observed among 62 dolphins (Tursiops) in a community living off Doubtful Sound, New Zealand, from 1994-2001.
This network has 62 nodes and 159 edges.
Tags: Social, Animal, Unweighted
https://networks.skewed.de/net/dolphins…

Crosslisted article(s) found for cs.SI. https://arxiv.org/list/cs.SI/new
[1/1]:
- Beyond Community Notes: A Framework for Understanding and Building Crowdsourced Context Systems
Travis Lloyd, Tung Nguyen, Karen Levy, Mor Naaman

dolphins: Dolphin social network (1994-2001)
An undirected social network of frequent associations observed among 62 dolphins (Tursiops) in a community living off Doubtful Sound, New Zealand, from 1994-2001.
This network has 62 nodes and 159 edges.
Tags: Social, Animal, Unweighted
https://networks.skewed.de/net/dolphins…

add_health: Adolescent health (ADD HEALTH) (1994)
A directed network of friendships obtained through a social survey of high school students in 1994. The ADD HEALTH data are constructed from the in-school questionnaire; 90,118 students representing 84 communities took this survey in 1994-95. Some communities had only one school; others had two. Where there are two schools in a community students from one school were allowed to name friends in the other, the "sister school".…

escorts: Brazilian prostitution network (2010)
A bipartite network of escort and individuals who buy sex from them in Brazil, extracted from a Brazilian online community for such ratings. Edges represent a purchase of sexual intercourse with an escort, and the edge weight gives the buyer's rating of the escort: -1 (bad), 0 (neutral), or 1 (good). Other edge attributes are available. Edges are timestamped.
This network has 16730 nodes and 50632 edges.
Tags: Social, Publ…

advogato: Advogato trust network (2009)
A network of trust relationships among users on Advogato, an online community of open source software developers. Edge direction indicates that node i trusts node j, and edge weight denotes one of four increasing levels of declared trust from i to j: observer (0.4), apprentice (0.6), journeyer (0.8), and master (1.0).
This network has 6541 nodes and 51127 edges.
Tags: Social, Online, Weighted

add_health: Adolescent health (ADD HEALTH) (1994)
A directed network of friendships obtained through a social survey of high school students in 1994. The ADD HEALTH data are constructed from the in-school questionnaire; 90,118 students representing 84 communities took this survey in 1994-95. Some communities had only one school; others had two. Where there are two schools in a community students from one school were allowed to name friends in the other, the "sister school".

Replaced article(s) found for cs.SI. https://arxiv.org/list/cs.SI/new
[1/1]:
- Top-r Influential Community Search in Bipartite Graphs
Yanxin Zhang, Zhengyu Hua, Long Yuan, Zi Chen

add_health: Adolescent health (ADD HEALTH) (1994)
A directed network of friendships obtained through a social survey of high school students in 1994. The ADD HEALTH data are constructed from the in-school questionnaire; 90,118 students representing 84 communities took this survey in 1994-95. Some communities had only one school; others had two. Where there are two schools in a community students from one school were allowed to name friends in the other, the "sister school".…

escorts: Brazilian prostitution network (2010)
A bipartite network of escort and individuals who buy sex from them in Brazil, extracted from a Brazilian online community for such ratings. Edges represent a purchase of sexual intercourse with an escort, and the edge weight gives the buyer's rating of the escort: -1 (bad), 0 (neutral), or 1 (good). Other edge attributes are available. Edges are timestamped.
This network has 16730 nodes and 50632 edges.
Tags: Social, Publ…

add_health: Adolescent health (ADD HEALTH) (1994)
A directed network of friendships obtained through a social survey of high school students in 1994. The ADD HEALTH data are constructed from the in-school questionnaire; 90,118 students representing 84 communities took this survey in 1994-95. Some communities had only one school; others had two. Where there are two schools in a community students from one school were allowed to name friends in the other, the "sister school".

add_health: Adolescent health (ADD HEALTH) (1994)
A directed network of friendships obtained through a social survey of high school students in 1994. The ADD HEALTH data are constructed from the in-school questionnaire; 90,118 students representing 84 communities took this survey in 1994-95. Some communities had only one school; others had two. Where there are two schools in a community students from one school were allowed to name friends in the other, the "sister school".