Tootfinder

polblogs: Political blogs network (2004)
A directed network of hyperlinks among a large set of U.S. political weblogs from before the 2004 election. Includes blog political affiliation as metadata.
This network has 1490 nodes and 19090 edges.
Tags: Informational, Web graph, Unweighted, Metadata
https://networks.skewed.d…

“EU Revives Plan for Year-Long Data Retention Across Digital Services, Including Encrypted Apps … Officials insist they do not intend to compromise encryption or read private messages. What they want is the so-called metadata: who contacted whom, from where, at what time, and through which service.” – https://

@… maybe a little hard to explain on text but given an arbitrary deeply nested object, I want to add metadata to each property that stores an arbitrary string for that property. the approach I’m using is to convert (for boolean types) primitive booleans to object booleans to add that data and retain the same behavior

polblogs: Political blogs network (2004)
A directed network of hyperlinks among a large set of U.S. political weblogs from before the 2004 election. Includes blog political affiliation as metadata.
This network has 1490 nodes and 19090 edges.
Tags: Informational, Web graph, Unweighted, Metadata
https://networks.skewed.d…

FMCache: File-System Metadata Caching in Programmable Switches
Qingxiu Liu (The Chinese University of Hong Kong), Jiazhen Cai (The Chinese University of Hong Kong), Siyuan Sheng (The Chinese University of Hong Kong), Yuhui Chen (Xiamen University), Lu Tang (Xiamen University), Zhirong Shen (Xiamen University), Patrick P. C. Lee (The Chinese University of Hong Kong)

FMCache: File-System Metadata Caching in Programmable Switches
Fast and scalable metadata management across multiple metadata servers is crucial for distributed file systems to handle numerous files and directories. Client-side caching of frequently accessed metadata can mitigate server loads, but incurs significant overhead and complexity in maintaining cache consistency when the number of clients increases. We propose FMCache, an in-switch file-system metadata caching framework that leverages programmable switches to serve file-system metadata requests f…

polblogs: Political blogs network (2004)
A directed network of hyperlinks among a large set of U.S. political weblogs from before the 2004 election. Includes blog political affiliation as metadata.
This network has 1490 nodes and 19090 edges.
Tags: Informational, Web graph, Unweighted, Metadata
https://networks.skewed.d…

MetaBreak: Jailbreaking Online LLM Services via Special Token Manipulation
Wentian Zhu, Zhen Xiang, Wei Niu, Le Guan
https://arxiv.org/abs/2510.10271 https://

MetaBreak: Jailbreaking Online LLM Services via Special Token Manipulation
Unlike regular tokens derived from existing text corpora, special tokens are artificially created to annotate structured conversations during the fine-tuning process of Large Language Models (LLMs). Serving as metadata of training data, these tokens play a crucial role in instructing LLMs to generate coherent and context-aware responses. We demonstrate that special tokens can be exploited to construct four attack primitives, with which malicious users can reliably bypass the internal safety ali…

Been in-depth studying the PDF file format spec for the past few days... it's mind boggling that this format with its capacity for monstrous complexity managed to become the de-facto standard for modern documents. So many questionable decisions & undue flexibility in there (in the wrong places) making even a simple task of reliable metadata extraction (for example) incredibly hard... I understand and value flexibility, but not at this cost! Guess I will have to keep on using one of t…

MeXtract: Light-Weight Metadata Extraction from Scientific Papers
Zaid Alyafeai, Maged S. Al-Shaibani, Bernard Ghanem
https://arxiv.org/abs/2510.06889 https://

MeXtract: Light-Weight Metadata Extraction from Scientific Papers
Metadata plays a critical role in indexing, documenting, and analyzing scientific literature, yet extracting it accurately and efficiently remains a challenging task. Traditional approaches often rely on rule-based or task-specific models, which struggle to generalize across domains and schema variations. In this paper, we present MeXtract, a family of lightweight language models designed for metadata extraction from scientific papers. The models, ranging from 0.5B to 3B parameters, are built b…

foursquare_global: Foursquare global check-ins (2013)
A bipartite network of users and locations, representing check-in events worldwide on Foursquare, from April 2012 to September 2013. Metadata include country, city name, city type (e.g. national capital), and vender's latitude and longitude.
This network has 3935215 nodes and 22809624 edges.
Tags: Social, Online, Unweighted, Metadata, Timestamps

Standards in the Preparation of Biomedical Research Metadata: A Bridge2AI Perspective
Harry Caufield, Satrajit Ghosh, Sek Wong Kong, Jillian Parker, Nathan Sheffield, Bhavesh Patel, Andrew Williams, Timothy Clark, Monica C. Munoz-Torres
https://arxiv.org/abs/2509.10432

Standards in the Preparation of Biomedical Research Metadata: A Bridge2AI Perspective
AI-readiness describes the degree to which data may be optimally and ethically used for subsequent AI and Machine Learning (AI/ML) methods, where those methods may involve some combination of model training, data classification, and ethical, explainable prediction. The Bridge2AI consortium has defined the particular criteria a biomedical dataset may possess to render it AI-ready: in brief, a dataset's readiness is related to its FAIRness, provenance, degree of characterization, explainability, …

From Funding to Findings (FIND): An Open Database of NSF Awards and Research Outputs
Kazimier Smith, Yucheng Lu, Qiaochu Fan
https://arxiv.org/abs/2510.10336 https://

From Funding to Findings (FIND): An Open Database of NSF Awards and Research Outputs
Public funding plays a central role in driving scientific discovery. To better understand the link between research inputs and outputs, we introduce FIND (Funding-Impact NSF Database), an open-access dataset that systematically links NSF grant proposals to their downstream research outputs, including publication metadata and abstracts. The primary contribution of this project is the creation of a large-scale, structured dataset that enables transparency, impact evaluation, and metascience resea…

ego_social: Ego networks in social media (2012)
Ego networks associated with a set of accounts of three social media platforms (Facebook, Google , and Twitter). Datasets include node features (profile metadata), circles, and ego networks, and were crawled from public sources in 2012.
This network has 4450 nodes and 1473709 edges.
Tags: Social, Online, Unweighted, Metadata

EcphoryRAG: Re-Imagining Knowledge-Graph RAG via Human Associative Memory
Zirui Liao
https://arxiv.org/abs/2510.08958 https://arxiv.org/pdf/2510.08958

EcphoryRAG: Re-Imagining Knowledge-Graph RAG via Human Associative Memory
Cognitive neuroscience research indicates that humans leverage cues to activate entity-centered memory traces (engrams) for complex, multi-hop recollection. Inspired by this mechanism, we introduce EcphoryRAG, an entity-centric knowledge graph RAG framework. During indexing, EcphoryRAG extracts and stores only core entities with corresponding metadata, a lightweight approach that reduces token consumption by up to 94\% compared to other structured RAG systems. For retrieval, the system first ex…

messal_shale: Messel Shale food web (2014)
A network of feeling links among taxa based on the 48 million years old uppermost early Eocene Messel Shale. Edge property 'certainty' denotes the certainty of the edge. Metadata include evidence, habitat, and trophic roles. The edge direction goes from consumer to resource.
This network has 700 nodes and 6444 edges.
Tags: Biological, Food Web, Uncertain, Weighted, Metadata

#Immich's search functionality is so dang powerful. It can search file metadata, OCR'd text, face recognition, and even by textual descriptions (”black cat on green grass”).
BUT you have to manually select the search mode. It is apparently not possible to "just search via every way". I think this should even be the default.

foursquare: Foursquare NYC restaurants (2012)
Two bipartite networks of users and restaurant locations in New York City on Foursquare, from 24 October 2011 to 20 February 2012. In one network, an edge denotes a check-in event of a user at a restaurant. In the other, an edge exists if a user left a tip/comment on a restaurant. Metadata include comments.
This network has 4936 nodes and 27149 edges.
Tags: Social, Online, Unweighted, Metadata

I was part of an OCLC RLP working group on 'artificial intelligence to support metadata workflows'.
Four posts summarise this work, looking at primary cataloguing, archives and special collections, institutional repositories, and overall pros and cons https://hangingtogether.org/tag/aiandm

AIandMetadataWorkflows Archives - Hanging Together

dutch_school: Dutch school friendships (2003)
A series of snapshots of the friendships among freshmen at secondary school in The Netherlands, in 2003-2004. Friendship ties were surveyed four times, at three month intervals. The direction of an edge indicates that student i is friends with student j. Missing data is coded as 0 or 10. Metadata includes sex, age, ethnicity, and religion.
This network has 26 nodes and 170 edges.
Tags: Social, Offline, Unweighted, Metadata, Temp…

Multi-Task Reinforcement Learning with Language-Encoded Gated Policy Networks
Rushiv Arora
https://arxiv.org/abs/2510.06138 https://arxiv.org/pdf/2510.0613…

Multi-Task Reinforcement Learning with Language-Encoded Gated Policy Networks
Multi-task reinforcement learning often relies on task metadata -- such as brief natural-language descriptions -- to guide behavior across diverse objectives. We present Lexical Policy Networks (LEXPOL), a language-conditioned mixture-of-policies architecture for multi-task RL. LEXPOL encodes task metadata with a text encoder and uses a learned gating module to select or blend among multiple sub-policies, enabling end-to-end training across tasks. On MetaWorld benchmarks, LEXPOL matches or exce…

The Software Observatory: aggregating and analysing software metadata for trend computation and FAIR assessment
Eva Mart\'in del Pico, Josep Llu\'is Gelp\'i, Salvador Capella-Guti\'errez
https://arxiv.org/abs/2510.05705

The Software Observatory: aggregating and analysing software metadata for trend computation and FAIR assessment
In the ever-changing realm of research software development, it is crucial for the scientific community to grasp current trends to identify gaps that can potentially hinder scientific progress. The adherence to the FAIR (Findable, Accessible, Interoperable, Reusable) principles can serve as a proxy to understand those trends and provide a mechanism to propose specific actions. The Software Observatory at OpenEBench (https://openebench.bsc.es/observatory) is a novel web portal that consolidate…

Multimodal Policy Internalization for Conversational Agents
Zhenhailong Wang, Jiateng Liu, Amin Fazel, Ritesh Sarkhel, Xing Fan, Xiang Li, Chenlei Guo, Heng Ji, Ruhi Sarikaya
https://arxiv.org/abs/2510.09474

Multimodal Policy Internalization for Conversational Agents
Modern conversational agents like ChatGPT and Alexa+ rely on predefined policies specifying metadata, response styles, and tool-usage rules. As these LLM-based systems expand to support diverse business and user queries, such policies, often implemented as in-context prompts, are becoming increasingly complex and lengthy, making faithful adherence difficult and imposing large fixed computational costs. With the rise of multimodal agents, policies that govern visual and multimodal behaviors are …

freshmen: Zeggelink's freshmen (1999)
Snapshots of friendships among freshmen majoring in Sociology at the University of Groningen, collected five times over the 1998-1999 year. The direction of an edge indicates that student i is friends with student j, and the edge weight gives their friendship level from 1 (best friend) to 5 (troubled relation). Metadata include gender, age, program type, and smoking behavior.
This network has 34 nodes and 1156 edges.
Tags: Social, O…

Generating CodeMeta using declarative mapping rules: An open-ended approach using ShExML
Herminio Garc\'ia-Gonz\'alez
https://arxiv.org/abs/2510.09172 https://

Generating CodeMeta using declarative mapping rules: An open-ended approach using ShExML
Nowadays, software is one of the cornerstones when conducting research in several scientific fields which employ computer-based methodologies to answer new research questions. However, for these experiments to be completely reproducible, research software should comply with the FAIR principles, yet its metadata can be represented following different data models and spread across different locations. In order to bring some cohesion to the field, CodeMeta was proposed as a vocabulary to represent…

zebras: Zebras (2002)
Social interactions among a group of wild Grevy's zebras (Equus grevyi), observed in Mpala Ranch in Kenya in 2002. Metadata (UCINET version) provides animal sex and lactation status.
This network has 27 nodes and 111 edges.
Tags: Social, Animal, Unweighted, Metadata
https://networks.skewed.de/net…

scotus_majority: SCOTUS majority opinions
Network of legal citations among majority opinions written by the Supreme Court of the United States (SCOTUS), from 1754-2002 (2008 version) and 1792-2006 (2007 version). In addition to the citation network, node metadata is included giving some description of each opinion.
This network has 25417 nodes and 216738 edges.
Tags: Informational, Legal, Unweighted, Metadata, Temporal

foursquare: Foursquare NYC restaurants (2012)
Two bipartite networks of users and restaurant locations in New York City on Foursquare, from 24 October 2011 to 20 February 2012. In one network, an edge denotes a check-in event of a user at a restaurant. In the other, an edge exists if a user left a tip/comment on a restaurant. Metadata include comments.
This network has 4936 nodes and 27149 edges.
Tags: Social, Online, Unweighted, Metadata

foursquare: Foursquare NYC restaurants (2012)
Two bipartite networks of users and restaurant locations in New York City on Foursquare, from 24 October 2011 to 20 February 2012. In one network, an edge denotes a check-in event of a user at a restaurant. In the other, an edge exists if a user left a tip/comment on a restaurant. Metadata include comments.
This network has 4936 nodes and 27149 edges.
Tags: Social, Online, Unweighted, Metadata

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…

euroroad: Euroroad network (2011)
A network of international "E-roads," mostly in Europe. Vertices represent cities and edges represents roads. Metadata includes names of cities.
This network has 1174 nodes and 1417 edges.
Tags: Transportation, Roads, Unweighted, Metadata
https://networks.skewed.de/net/euroroa…

sp_kenyan_households: Kenyan households contacts (2012)
A network of proximity contacts measured between members of 5 households of rural Kenya, between April 24 and May 12, 2012.
This network has 47 nodes and 32643 edges.
Tags: Social, Offline, Unweighted, Temporal, Metadata
https://networks.skewed.…

sp_high_school: High school temporal contacts (2013)
These data sets correspond to the contacts and friendship relations between students in a high school in Marseilles, France, in December 2013, as measured through several techniques.
This network has 329 nodes and 502 edges.
Tags: Social, Offline, Unweighted, Weighted, Temporal, Metadata

dblp_coauthor_snap: DBLP authors (2012)
A coauthorship network extracted from the DBLP computer science manuscript database, in 2012. This network is a one-mode projection from the bipartite graph of computer scientists and their publications.
This network has 425957 nodes and 1049866 edges.
Tags: Social, Collaboration, Unweighted, Metadata, Projection

nematode_mammal: Global nematode–mammal interactions (2018)
A global interaction web of interactions between nematodes and their host mammal species, extracted from the helminthR package and dataset. Nodes are annotated with species-level information.
This network has 30516 nodes and 146683 edges.
Tags: Biological, Food web, Unweighted, Metadata

polbooks: Political books network (2004)
A network of books about U.S. politics published close to the 2004 U.S. presidential election, and sold by Amazon.com. Edges between books represent frequent copurchasing of those books by the same buyers. The network was compiled by V. Krebs and is unpublished.
This network has 105 nodes and 441 edges.
Tags: Informational, Relatedness, Unweighted, Metadata

sp_primary_school: Primary school dynamic contacts (2009)
Two temporal networks of contacts among students and teachers at a primary school in Lyon, France, on consecutive days of in October 2009. Each network accumulates all contacts over the course of a single day; contacts were sampled at 20-second intervals.
This network has 242 nodes and 125773 edges.
Tags: Social, Offline, Weighted, Temporal, Metadata

sp_primary_school: Primary school dynamic contacts (2009)
Two temporal networks of contacts among students and teachers at a primary school in Lyon, France, on consecutive days of in October 2009. Each network accumulates all contacts over the course of a single day; contacts were sampled at 20-second intervals.
This network has 242 nodes and 125773 edges.
Tags: Social, Offline, Weighted, Temporal, Metadata

fresh_webs: Freshwater stream webs
A set of 26 networks of trophic-level species interactions in streams in New Zealand, Maine and North Carolina. Networks include the identities of aquatic insect, algae and fish species and their trophic interactions. Excel and plain text adjacency matrices available; webs can be downloaded individually or as a group.
This network has 86 nodes and 353 edges.
Tags: Biological, Food web, Unweighted, Metadata

foursquare: Foursquare NYC restaurants (2012)
Two bipartite networks of users and restaurant locations in New York City on Foursquare, from 24 October 2011 to 20 February 2012. In one network, an edge denotes a check-in event of a user at a restaurant. In the other, an edge exists if a user left a tip/comment on a restaurant. Metadata include comments.
This network has 6410 nodes and 10377 edges.
Tags: Social, Online, Unweighted, Metadata

blumenau_drug: Blumenau drug interactions (2019)
A network of drug-drug interactions, extracted from 18 months of electronic health records (EHRs) from the city of Blumenau in Southern Brazil. Nodes are annotated with drug information (separate file), and edges are weighted by the severity of the interaction, along with other information.
This network has 75 nodes and 181 edges.
Tags: Biological, Drug interactions, Weighted, Metadata

at_migrations: Austrian internal migrations (2002-2022)
A network of migrations between municipalities in Austria, from 2002 to 2022. A weighted directed link from source to target indicates a migration flow from these two municipalities. Edges are annotated with migration volume (number of people), nationality, sex, and year.
This network has 2115 nodes and 2908569 edges.
Tags: Social, Economic, Travel, Weighted, Politlcal, Timestamps, Metadata

euroroad: Euroroad network (2011)
A network of international "E-roads," mostly in Europe. Vertices represent cities and edges represents roads. Metadata includes names of cities.
This network has 1174 nodes and 1417 edges.
Tags: Transportation, Roads, Unweighted, Metadata
https://networks.skewed.de/net/euroroa…

hiv_transmission: HIV transmission network (1988-2001)
A set of networks of HIV transmissions between people through sexual, needle-sharing, or social connections, based on combining 8 datasets collected from 1988 to 2001. Metadata includes test results of several diseases, as well as demographic variables such as age, ethnicity, and gender. Networks come in two flavors: egodyads and altdyads. Egodyads are the network among study-participants and their direct partners. Altdyads are the…

board_directors: Norwegian Boards of Directors (2002-2011)
224 networks of the affiliations among board directors due to sitting on common boards of Norwegian public limited companies (as of 5 August 2009), from May 2002 onward, in monthly snapshots through August 2011. Some metadata is included, such as director and company names, city and postal code for companies, and gender for directors. The 'net2m' data are bipartite company-director networks, while the 'net1m' ar…

football_tsevans: NCAA college football 2000 (corrected metadata)
A network of American football games between Division IA colleges during regular season Fall 2000. This version contains some corrections made by T. S. Evans, in particular:.
This network has 115 nodes and 613 edges.
Tags: Social, Sports, Unweighted
https://

messal_shale: Messel Shale food web (2014)
A network of feeling links among taxa based on the 48 million years old uppermost early Eocene Messel Shale. Edge property 'certainty' denotes the certainty of the edge. Metadata include evidence, habitat, and trophic roles. The edge direction goes from consumer to resource.
This network has 700 nodes and 6444 edges.
Tags: Biological, Food Web, Uncertain, Weighted, Metadata

foursquare: Foursquare NYC restaurants (2012)
Two bipartite networks of users and restaurant locations in New York City on Foursquare, from 24 October 2011 to 20 February 2012. In one network, an edge denotes a check-in event of a user at a restaurant. In the other, an edge exists if a user left a tip/comment on a restaurant. Metadata include comments.
This network has 4936 nodes and 27149 edges.
Tags: Social, Online, Unweighted, Metadata

polblogs: Political blogs network (2004)
A directed network of hyperlinks among a large set of U.S. political weblogs from before the 2004 election. Includes blog political affiliation as metadata.
This network has 1490 nodes and 19090 edges.
Tags: Informational, Web graph, Unweighted, Metadata
https://networks.skewed.d…

foursquare_global: Foursquare global check-ins (2013)
A bipartite network of users and locations, representing check-in events worldwide on Foursquare, from April 2012 to September 2013. Metadata include country, city name, city type (e.g. national capital), and vender's latitude and longitude.
This network has 3935215 nodes and 22809624 edges.
Tags: Social, Online, Unweighted, Metadata, Timestamps

november17: November17 members (2009)
A network representing connections among members of the November 17 (N17) Greek terrorist group. Nodes are members, and an edge exists if two members have some connection in the past. Metadata include role, function, resources. Some attributes are missing.
This network has 22 nodes and 66 edges.
Tags: Social, Offline, Unweighted, Metadata

messal_shale: Messel Shale food web (2014)
A network of feeling links among taxa based on the 48 million years old uppermost early Eocene Messel Shale. Edge property 'certainty' denotes the certainty of the edge. Metadata include evidence, habitat, and trophic roles. The edge direction goes from consumer to resource.
This network has 700 nodes and 6444 edges.
Tags: Biological, Food Web, Uncertain, Weighted, Metadata

pokec: Pokec online social network (2012)
The online social network of Pokec, a popular OSN in Slovakia, from 2012. Date covers about 10 years and more than 1.6 million people. Profile data contains gender, age, hobbies, interest, education etc. Profile metadata are in Slovak language. Friendships in Pokec are oriented.
This network has 1632804 nodes and 30622564 edges.
Tags: Social, Online, Metadata

pokec: Pokec online social network (2012)
The online social network of Pokec, a popular OSN in Slovakia, from 2012. Date covers about 10 years and more than 1.6 million people. Profile data contains gender, age, hobbies, interest, education etc. Profile metadata are in Slovak language. Friendships in Pokec are oriented.
This network has 1632804 nodes and 30622564 edges.
Tags: Social, Online, Metadata

dutch_school: Dutch school friendships (2003)
A series of snapshots of the friendships among freshmen at secondary school in The Netherlands, in 2003-2004. Friendship ties were surveyed four times, at three month intervals. The direction of an edge indicates that student i is friends with student j. Missing data is coded as 0 or 10. Metadata includes sex, age, ethnicity, and religion.
This network has 26 nodes and 87 edges.
Tags: Social, Offline, Unweighted, Metadata, Tempo…

urban_streets: Urban street networks (2017)
20 urban street networks, corresponding to 1-square-mile maps of 20 cities around the world.
This network has 467 nodes and 692 edges.
Tags: Transportation, Roads, Unweighted, Metadata
https://networks.skewed.de/net/urban_stre…

euroroad: Euroroad network (2011)
A network of international "E-roads," mostly in Europe. Vertices represent cities and edges represents roads. Metadata includes names of cities.
This network has 1174 nodes and 1417 edges.
Tags: Transportation, Roads, Unweighted, Metadata
https://networks.skewed.de/net/euroroa…

euroroad: Euroroad network (2011)
A network of international "E-roads," mostly in Europe. Vertices represent cities and edges represents roads. Metadata includes names of cities.
This network has 1174 nodes and 1417 edges.
Tags: Transportation, Roads, Unweighted, Metadata
https://networks.skewed.de/net/euroroa…

zebras: Zebras (2002)
Social interactions among a group of wild Grevy's zebras (Equus grevyi), observed in Mpala Ranch in Kenya in 2002. Metadata (UCINET version) provides animal sex and lactation status.
This network has 27 nodes and 111 edges.
Tags: Social, Animal, Unweighted, Metadata
https://networks.skewed.de/net…

zebras: Zebras (2002)
Social interactions among a group of wild Grevy's zebras (Equus grevyi), observed in Mpala Ranch in Kenya in 2002. Metadata (UCINET version) provides animal sex and lactation status.
This network has 27 nodes and 111 edges.
Tags: Social, Animal, Unweighted, Metadata
https://networks.skewed.de/net…

facebook_friends: Maier Facebook friends (2014)
A small anonymized Facebook ego network, from April 2014. Nodes are Facebook profiles, and an edge exists if the two profiles are "friends" on Facebook. Metadata gives the social context for the relationship between ego and alter.
This network has 362 nodes and 1988 edges.
Tags: Social, Online, Unweighted, Metadata

nematode_mammal: Global nematode–mammal interactions (2018)
A global interaction web of interactions between nematodes and their host mammal species, extracted from the helminthR package and dataset. Nodes are annotated with species-level information.
This network has 30516 nodes and 146683 edges.
Tags: Biological, Food web, Unweighted, Metadata

foursquare: Foursquare NYC restaurants (2012)
Two bipartite networks of users and restaurant locations in New York City on Foursquare, from 24 October 2011 to 20 February 2012. In one network, an edge denotes a check-in event of a user at a restaurant. In the other, an edge exists if a user left a tip/comment on a restaurant. Metadata include comments.
This network has 4936 nodes and 27149 edges.
Tags: Social, Online, Unweighted, Metadata

fly_larva: Drosophila larva brain (2023)
A complete synaptic map of the brain connectome of the larva of the fruit fly Drosophila melanogaster. Nodes are neurons, and edges are synaptic connections, traced individually from brain image sections using three-dimensional electron microscopy–based reconstruction. Node metadata include the neuron hempisphere, hemispherical homologue, cell type, annotations, and inferred cluster. Edge metadata include the type of interaction (`'aa'`,…

crime: Rosenfeld crime network (1991)
A network of associations among suspects, victims, and/or witnesses involved in crimes in St. Louis in the 1990s. Data are derived from police records, via snowball sampling from five initial homicides. Left nodes are people, right nodes are crime events, and edges connect people to particular crimes events they were associated with. Metadata includes names, genders, and roles (suspects, victims, and/or witnesses).
This network has 1380 nodes…

moreno_sheep: Bighorn sheep (1984)
Dominance interactions among a group of female bighorn sheep (Ovis canadensis) from the National Bison Range in western Montana USA, over a 27 month period ending in 1984. Edge weights represent the frequency of interaction. Metadata gives the sheep ages, roughly.
This network has 28 nodes and 250 edges.
Tags: Social, Animal, Weighted, Metadata

pokec: Pokec online social network (2012)
The online social network of Pokec, a popular OSN in Slovakia, from 2012. Date covers about 10 years and more than 1.6 million people. Profile data contains gender, age, hobbies, interest, education etc. Profile metadata are in Slovak language. Friendships in Pokec are oriented.
This network has 1632804 nodes and 30622564 edges.
Tags: Social, Online, Metadata

polblogs: Political blogs network (2004)
A directed network of hyperlinks among a large set of U.S. political weblogs from before the 2004 election. Includes blog political affiliation as metadata.
This network has 1490 nodes and 19090 edges.
Tags: Informational, Web graph, Unweighted, Metadata
https://networks.skewed.d…

polblogs: Political blogs network (2004)
A directed network of hyperlinks among a large set of U.S. political weblogs from before the 2004 election. Includes blog political affiliation as metadata.
This network has 1490 nodes and 19090 edges.
Tags: Informational, Web graph, Unweighted, Metadata
https://networks.skewed.d…

facebook_friends: Maier Facebook friends (2014)
A small anonymized Facebook ego network, from April 2014. Nodes are Facebook profiles, and an edge exists if the two profiles are "friends" on Facebook. Metadata gives the social context for the relationship between ego and alter.
This network has 362 nodes and 1988 edges.
Tags: Social, Online, Unweighted, Metadata

november17: November17 members (2009)
A network representing connections among members of the November 17 (N17) Greek terrorist group. Nodes are members, and an edge exists if two members have some connection in the past. Metadata include role, function, resources. Some attributes are missing.
This network has 22 nodes and 66 edges.
Tags: Social, Offline, Unweighted, Metadata

scotus_majority: SCOTUS majority opinions
Network of legal citations among majority opinions written by the Supreme Court of the United States (SCOTUS), from 1754-2002 (2008 version) and 1792-2006 (2007 version). In addition to the citation network, node metadata is included giving some description of each opinion.
This network has 34613 nodes and 202167 edges.
Tags: Informational, Legal, Unweighted, Metadata, Temporal

board_directors: Norwegian Boards of Directors (2002-2011)
224 networks of the affiliations among board directors due to sitting on common boards of Norwegian public limited companies (as of 5 August 2009), from May 2002 onward, in monthly snapshots through August 2011. Some metadata is included, such as director and company names, city and postal code for companies, and gender for directors. The 'net2m' data are bipartite company-director networks, while the 'net1m' ar…

dutch_school: Dutch school friendships (2003)
A series of snapshots of the friendships among freshmen at secondary school in The Netherlands, in 2003-2004. Friendship ties were surveyed four times, at three month intervals. The direction of an edge indicates that student i is friends with student j. Missing data is coded as 0 or 10. Metadata includes sex, age, ethnicity, and religion.
This network has 26 nodes and 234 edges.
Tags: Social, Offline, Unweighted, Metadata, Temp…

board_directors: Norwegian Boards of Directors (2002-2011)
224 networks of the affiliations among board directors due to sitting on common boards of Norwegian public limited companies (as of 5 August 2009), from May 2002 onward, in monthly snapshots through August 2011. Some metadata is included, such as director and company names, city and postal code for companies, and gender for directors. The 'net2m' data are bipartite company-director networks, while the 'net1m' ar…

board_directors: Norwegian Boards of Directors (2002-2011)
224 networks of the affiliations among board directors due to sitting on common boards of Norwegian public limited companies (as of 5 August 2009), from May 2002 onward, in monthly snapshots through August 2011. Some metadata is included, such as director and company names, city and postal code for companies, and gender for directors. The 'net2m' data are bipartite company-director networks, while the 'net1m' ar…

freshmen: Zeggelink's freshmen (1999)
Snapshots of friendships among freshmen majoring in Sociology at the University of Groningen, collected five times over the 1998-1999 year. The direction of an edge indicates that student i is friends with student j, and the edge weight gives their friendship level from 1 (best friend) to 5 (troubled relation). Metadata include gender, age, program type, and smoking behavior.
This network has 34 nodes and 1156 edges.
Tags: Social, O…

euroroad: Euroroad network (2011)
A network of international "E-roads," mostly in Europe. Vertices represent cities and edges represents roads. Metadata includes names of cities.
This network has 1174 nodes and 1417 edges.
Tags: Transportation, Roads, Unweighted, Metadata
https://networks.skewed.de/net/euroroa…

polblogs: Political blogs network (2004)
A directed network of hyperlinks among a large set of U.S. political weblogs from before the 2004 election. Includes blog political affiliation as metadata.
This network has 1490 nodes and 19090 edges.
Tags: Informational, Web graph, Unweighted, Metadata
https://networks.skewed.d…

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…

twitter_15m: Twitter 15-M movement (2011)
A network representing follower-following relations among Twitter users associated with the 15-M Movement or Anti-austerity movement in Spain, in the period April-May 2011. Metadata include hashtags in the tweets.
This network has 87569 nodes and 6030459 edges.
Tags: Social, Online, Unweighted, Metadata

november17: November17 members (2009)
A network representing connections among members of the November 17 (N17) Greek terrorist group. Nodes are members, and an edge exists if two members have some connection in the past. Metadata include role, function, resources. Some attributes are missing.
This network has 22 nodes and 66 edges.
Tags: Social, Offline, Unweighted, Metadata

pokec: Pokec online social network (2012)
The online social network of Pokec, a popular OSN in Slovakia, from 2012. Date covers about 10 years and more than 1.6 million people. Profile data contains gender, age, hobbies, interest, education etc. Profile metadata are in Slovak language. Friendships in Pokec are oriented.
This network has 1632804 nodes and 30622564 edges.
Tags: Social, Online, Metadata

terrorists_911: 9-11 terrorist network
Network of individuals and their known social associations, centered around the hijackers that carried out the September 11th, 2001 terrorist attacks. Associations extracted after-the-fact from public data. Metadata labels say which plane a person was on, if any, on 9/11.
This network has 62 nodes and 152 edges.
Tags: Social, Offline, Unweighted, Metadata

spanish_highschools: Spanish high schools (2023)
Directed networks of friendships obtained through a social survey of spanish high school students.
This network has 534 nodes and 12812 edges.
Tags: Social, Offline, Weighted, Metadata
https://networks.skewed.de/net/spanish

euroroad: Euroroad network (2011)
A network of international "E-roads," mostly in Europe. Vertices represent cities and edges represents roads. Metadata includes names of cities.
This network has 1174 nodes and 1417 edges.
Tags: Transportation, Roads, Unweighted, Metadata
https://networks.skewed.de/net/euroroa…

bag_of_words: Bag of words (2008)
Five text collections in the form of bags-of-words, i.e. a bipartite document–word network. Left nodes are documents and right nodes are words. Edge weights are multiplicities. .
This network has 10336 nodes and 353160 edges.
Tags: Informational, Text, Bipartite, Weighted, Metadata
https://

moreno_sheep: Bighorn sheep (1984)
Dominance interactions among a group of female bighorn sheep (Ovis canadensis) from the National Bison Range in western Montana USA, over a 27 month period ending in 1984. Edge weights represent the frequency of interaction. Metadata gives the sheep ages, roughly.
This network has 28 nodes and 250 edges.
Tags: Social, Animal, Weighted, Metadata

pokec: Pokec online social network (2012)
The online social network of Pokec, a popular OSN in Slovakia, from 2012. Date covers about 10 years and more than 1.6 million people. Profile data contains gender, age, hobbies, interest, education etc. Profile metadata are in Slovak language. Friendships in Pokec are oriented.
This network has 1632804 nodes and 30622564 edges.
Tags: Social, Online, Metadata

terrorists_911: 9-11 terrorist network
Network of individuals and their known social associations, centered around the hijackers that carried out the September 11th, 2001 terrorist attacks. Associations extracted after-the-fact from public data. Metadata labels say which plane a person was on, if any, on 9/11.
This network has 62 nodes and 152 edges.
Tags: Social, Offline, Unweighted, Metadata

moreno_sheep: Bighorn sheep (1984)
Dominance interactions among a group of female bighorn sheep (Ovis canadensis) from the National Bison Range in western Montana USA, over a 27 month period ending in 1984. Edge weights represent the frequency of interaction. Metadata gives the sheep ages, roughly.
This network has 28 nodes and 250 edges.
Tags: Social, Animal, Weighted, Metadata

polbooks: Political books network (2004)
A network of books about U.S. politics published close to the 2004 U.S. presidential election, and sold by Amazon.com. Edges between books represent frequent copurchasing of those books by the same buyers. The network was compiled by V. Krebs and is unpublished.
This network has 105 nodes and 441 edges.
Tags: Informational, Relatedness, Unweighted, Metadata

sp_colocation: Social co-locations (2018)
Network of colocations between peoople, based on the information on which RFID readers received information from the RFID tags. Namely, we define two individuals to be in co-presence if the same exact set of readers have received signals from both individuals during a 20s time window.
This network has 242 nodes and 6594492 edges.
Tags: Social, Offline, Unweighted, Weighted, Temporal, Metadata

fly_larva: Drosophila larva brain (2023)
A complete synaptic map of the brain connectome of the larva of the fruit fly Drosophila melanogaster. Nodes are neurons, and edges are synaptic connections, traced individually from brain image sections using three-dimensional electron microscopy–based reconstruction. Node metadata include the neuron hempisphere, hemispherical homologue, cell type, annotations, and inferred cluster. Edge metadata include the type of interaction (`'aa'`,…

dblp_coauthor_snap: DBLP authors (2012)
A coauthorship network extracted from the DBLP computer science manuscript database, in 2012. This network is a one-mode projection from the bipartite graph of computer scientists and their publications.
This network has 425957 nodes and 1049866 edges.
Tags: Social, Collaboration, Unweighted, Metadata, Projection

at_migrations: Austrian internal migrations (2002-2022)
A network of migrations between municipalities in Austria, from 2002 to 2022. A weighted directed link from source to target indicates a migration flow from these two municipalities. Edges are annotated with migration volume (number of people), nationality, sex, and year.
This network has 2115 nodes and 2908569 edges.
Tags: Social, Economic, Travel, Weighted, Politlcal, Timestamps, Metadata

fly_hemibrain: Fly hemibrain (2020)
A synaptic map of the hemibrain connectome of fruit fly Drosophila melanogaster. Nodes are neurons, and edges are synaptic connections, traced individually from brain image sections using EM reconstruction techniques. Neurons are labeled by their type. Edges are annotated by the connection strength between the neurons.
This network has 21739 nodes and 4259624 edges.
Tags: Biological, Connectome, Weighted, Metadata

foursquare_global: Foursquare global check-ins (2013)
A bipartite network of users and locations, representing check-in events worldwide on Foursquare, from April 2012 to September 2013. Metadata include country, city name, city type (e.g. national capital), and vender's latitude and longitude.
This network has 3935215 nodes and 22809624 edges.
Tags: Social, Online, Unweighted, Metadata, Timestamps

ego_social: Ego networks in social media (2012)
Ego networks associated with a set of accounts of three social media platforms (Facebook, Google , and Twitter). Datasets include node features (profile metadata), circles, and ego networks, and were crawled from public sources in 2012.
This network has 1650 nodes and 151766 edges.
Tags: Social, Online, Unweighted, Metadata

moreno_sheep: Bighorn sheep (1984)
Dominance interactions among a group of female bighorn sheep (Ovis canadensis) from the National Bison Range in western Montana USA, over a 27 month period ending in 1984. Edge weights represent the frequency of interaction. Metadata gives the sheep ages, roughly.
This network has 28 nodes and 250 edges.
Tags: Social, Animal, Weighted, Metadata

euroroad: Euroroad network (2011)
A network of international "E-roads," mostly in Europe. Vertices represent cities and edges represents roads. Metadata includes names of cities.
This network has 1174 nodes and 1417 edges.
Tags: Transportation, Roads, Unweighted, Metadata
https://networks.skewed.de/net/euroroa…