Brightkite was once a location-based social networking service provider where users shared their locations by checking-in. The friendship network was collected using their public API, and consists of 58,228 nodes and 214,078 edges. The network is originally directed but we have constructed a network with undirected edges when there is a friendship in both ways. We have also collected a total of 4,491,143 checkins of these users over the period of Apr. 2008 - Oct. 2010.

Explore historical ownership and registration records by performing a reverse Whois lookup for the email address brightkite.com@domainsbyproxy.com..

Confusion matrix of the proposed models applied on Brightkite dataset.

Networks from SNAP (Stanford Network Analysis Platform) Network Data Sets, Jure Leskovec http://snap.stanford.edu/data/index.html email jure at cs.stanford.edu

Citation for the SNAP collection:

@misc{snapnets, author = {Jure Leskovec and Andrej Krevl}, title = {{SNAP Datasets}: {Stanford} Large Network Dataset Collection}, howpublished = {\url{http://snap.stanford.edu/data}}, month = jun, year = 2014 }

The following matrices/graphs were added to the collection in June 2010 by Tim Davis (problem id and name):

2284 SNAP/soc-Epinions1 who-trusts-whom network of Epinions.com 2285 SNAP/soc-LiveJournal1 LiveJournal social network 2286 SNAP/soc-Slashdot0811 Slashdot social network, Nov 2008 2287 SNAP/soc-Slashdot0902 Slashdot social network, Feb 2009 2288 SNAP/wiki-Vote Wikipedia who-votes-on-whom network 2289 SNAP/email-EuAll Email network from a EU research institution 2290 SNAP/email-Enron Email communication network from Enron 2291 SNAP/wiki-Talk Wikipedia talk (communication) network 2292 SNAP/cit-HepPh Arxiv High Energy Physics paper citation network 2293 SNAP/cit-HepTh Arxiv High Energy Physics paper citation network 2294 SNAP/cit-Patents Citation network among US Patents 2295 SNAP/ca-AstroPh Collaboration network of Arxiv Astro Physics 2296 SNAP/ca-CondMat Collaboration network of Arxiv Condensed Matter 2297 SNAP/ca-GrQc Collaboration network of Arxiv General Relativity 2298 SNAP/ca-HepPh Collaboration network of Arxiv High Energy Physics 2299 SNAP/ca-HepTh Collaboration network of Arxiv High Energy Physics Theory 2300 SNAP/web-BerkStan Web graph of Berkeley and Stanford 2301 SNAP/web-Google Web graph from Google 2302 SNAP/web-NotreDame Web graph of Notre Dame 2303 SNAP/web-Stanford Web graph of Stanford.edu 2304 SNAP/amazon0302 Amazon product co-purchasing network from March 2 2003 2305 SNAP/amazon0312 Amazon product co-purchasing network from March 12 2003 2306 SNAP/amazon0505 Amazon product co-purchasing network from May 5 2003 2307 SNAP/amazon0601 Amazon product co-purchasing network from June 1 2003 2308 SNAP/p2p-Gnutella04 Gnutella peer to peer network from August 4 2002 2309 SNAP/p2p-Gnutella05 Gnutella peer to peer network from August 5 2002 2310 SNAP/p2p-Gnutella06 Gnutella peer to peer network from August 6 2002 2311 SNAP/p2p-Gnutella08 Gnutella peer to peer network from August 8 2002 2312 SNAP/p2p-Gnutella09 Gnutella peer to peer network from August 9 2002 2313 SNAP/p2p-Gnutella24 Gnutella peer to peer network from August 24 2002 2314 SNAP/p2p-Gnutella25 Gnutella peer to peer network from August 25 2002 2315 SNAP/p2p-Gnutella30 Gnutella peer to peer network from August 30 2002 2316 SNAP/p2p-Gnutella31 Gnutella peer to peer network from August 31 2002 2317 SNAP/roadNet-CA Road network of California 2318 SNAP/roadNet-PA Road network of Pennsylvania 2319 SNAP/roadNet-TX Road network of Texas 2320 SNAP/as-735 733 daily instances(graphs) from November 8 1997 to January 2 2000 2321 SNAP/as-Skitter Internet topology graph, from traceroutes run daily in 2005 2322 SNAP/as-caida The CAIDA AS Relationships Datasets, from January 2004 to November 2007 2323 SNAP/Oregon-1 AS peering information inferred from Oregon route-views between March 31 and May 26 2001 2324 SNAP/Oregon-2 AS peering information inferred from Oregon route-views between March 31 and May 26 2001 2325 SNAP/soc-sign-epinions Epinions signed social network 2326 SNAP/soc-sign-Slashdot081106 Slashdot Zoo signed social network from November 6 2008 2327 SNAP/soc-sign-Slashdot090216 Slashdot Zoo signed social network from February 16 2009 2328 SNAP/soc-sign-Slashdot090221 Slashdot Zoo signed social network from February 21 2009

Then the following problems were added in July 2018. All data and metadata from the SNAP data set was imported into the SuiteSparse Matrix Collection.

2777 SNAP/CollegeMsg Messages on a Facebook-like platform at UC-Irvine 2778 SNAP/com-Amazon Amazon product network 2779 SNAP/com-DBLP DBLP collaboration network 2780 SNAP/com-Friendster Friendster online social network 2781 SNAP/com-LiveJournal LiveJournal online social network 2782 SNAP/com-Orkut Orkut online social network 2783 SNAP/com-Youtube Youtube online social network 2784 SNAP/email-Eu-core E-mail network 2785 SNAP/email-Eu-core-temporal E-mails between users at a research institution 2786 SNAP/higgs-twitter twitter messages re: Higgs boson on 4th July 2012. 2787 SNAP/loc-Brightkite Brightkite location based online social network 2788 SNAP/loc-Gowalla Gowalla location based online social network 2789 SNAP/soc-Pokec Pokec online social network 2790 SNAP/soc-sign-bitcoin-alpha Bitcoin Alpha web of trust network 2791 SNAP/soc-sign-bitcoin-otc Bitcoin OTC web of trust network 2792 SNAP/sx-askubuntu Comments, questions, and answers on Ask Ubuntu 2793 SNAP/sx-mathoverflow Comments, questions, and answers on Math Overflow 2794 SNAP/sx-stackoverflow Comments, questions, and answers on Stack Overflow 2795 SNAP/sx-superuser Comments, questions, and answers on Super User 2796 SNAP/twitter7 A collection of 476 million tweets collected between June-Dec 2009 2797 SNAP/wiki-RfA Wikipedia Requests for Adminship (with text) 2798 SNAP/wiki-talk-temporal Users editing talk pages on Wikipedia 2799 SNAP/wiki-topcats Wikipedia hyperlinks (with communities)

The following 13 graphs/networks were in the SNAP data set in July 2018 but have not yet been imported into the SuiteSparse Matrix Collection. They may be added in the future:

amazon-meta ego-Facebook ego-Gplus ego-Twitter gemsec-Deezer gemsec-Facebook ksc-time-series memetracker9 web-flickr web-Reddit web-RedditPizzaRequests wiki-Elec wiki-meta wikispeedia

The 2010 description of the SNAP data set gave these categories:

• Social networks: online social networks, edges represent interactions between people

• Communication networks: email communication networks with edges representing communication

• Citation networks: nodes represent papers, edges represent citations

• Collaboration networks: nodes represent scientists, edges represent collaborations (co-authoring a paper)

• Web graphs: nodes represent webpages and edges are hyperlinks

• Blog and Memetracker graphs: nodes represent time stamped blog posts, edges are hyperlinks [revised below]

• Amazon networks : nodes represent products and edges link commonly co-purchased products

• Internet networks : nodes represent computers and edges communication

• Road networks : nodes represent intersections and edges roads connecting the intersections

• Autonomous systems : graphs of the internet

• Signed networks : networks with positive and negative edges (friend/foe, trust/distrust)

By July 2018, the following categories had been added:

• Networks with ground-truth communities : ground-truth network communities in social and information networks

• Location-based online social networks : Social networks with geographic check-ins

• Wikipedia networks, articles, and metadata : Talk, editing, voting, and article data from Wikipedia

• Temporal networks : networks where edges have timestamps

• Twitter and Memetracker : Memetracker phrases, links and 467 million Tweets

• Online communities : Data from online communities such as Reddit and Flickr

• Online reviews : Data from online review systems such as BeerAdvocate and Amazon

https://sparse.tamu.edu/SNAP

Gowalla is a location-based social networking website where users share their locations by checking-in. The friendship network is undirected and was collected using their public API, and consists of 196,591 nodes and 950,327 edges. We have collected a total of 6,442,890 check-ins of these users over the period of Feb. 2009 - Oct. 2010.

Brightkite was once a location-based social networking service provider where users shared their locations by checking-in. The friendship network was collected using their public API, and consists of 58,228 nodes and 214,078 edges. The network is originally directed but we have constructed a network with undirected edges when there is a friendship in both ways. We have also collected a total of 4,491,143 checkins of these users over the period of Apr. 2008 - Oct. 2010.

Stanford Network Analysis Platform (SNAP) is a general purpose, high performance system for analysis and manipulation of large networks. Graphs consists of nodes and directed/undirected/multiple edges between the graph nodes. Networks are graphs with data on nodes and/or edges of the network.

The core SNAP library is written in C++ and optimized for maximum performance and compact graph representation. It easily scales to massive networks with hundreds of millions of nodes, and billions of edges. It efficiently manipulates large graphs, calculates structural properties, generates regular and random graphs, and supports attributes on nodes and edges. Besides scalability to large graphs, an additional strength of SNAP is that nodes, edges and attributes in a graph or a network can be changed dynamically during the computation.

SNAP was originally developed by Jure Leskovec in the course of his PhD studies. The first release was made available in Nov, 2009. SNAP uses a general purpose STL (Standard Template Library)-like library GLib developed at Jozef Stefan Institute. SNAP and GLib are being actively developed and used in numerous academic and industrial projects.

https://snap.stanford.edu/data/index.html

The global location-based social networking service (LBSNS) market was valued at USD 12.97 billion in 2021 and is projected to reach USD 52.91 billion by 2030, exhibiting a CAGR of 19.8% during the forecast period. Factors such as the increasing penetration of smartphones, rising adoption of social media platforms, and growing popularity of location-based services are driving the market growth. Moreover, the proliferation of augmented reality and virtual reality technologies is expected to create new opportunities for LBSNS providers. Geographically, North America held the largest market share in 2021, followed by Europe and Asia Pacific. The high adoption of smartphones and social media platforms in the region, coupled with the presence of well-established LBSNS providers, contributed to the region's dominance. Asia Pacific is expected to be the fastest-growing region during the forecast period due to the rapid growth of the mobile internet and the increasing adoption of LBSNS among consumers. Key players operating in the global LBSNS market include Foursquare, Loopt, GyPSii, Citysense Plazes, Brightkite, Gowalla, Yelp, Bedo, Facebook, and Instagram.

Daily interactions naturally define social circles. Individuals tend to be friends with the people they spend time with and they choose to spend time with their friends, inextricably entangling physical location and social relationships. As a result, it is possible to predict not only someone’s location from their friends’ locations but also friendship from spatial and temporal co-occurrence. While several models have been developed to separately describe mobility and the evolution of social networks, there is a lack of studies coupling social interactions and mobility. In this work, we introduce a model that bridges this gap by explicitly considering the feedback of mobility on the formation of social ties. Data coming from three online social networks (Twitter, Gowalla and Brightkite) is used for validation. Our model reproduces various topological and physical properties of the networks not captured by models uncoupling mobility and social interactions such as: i) the total size of the connected components, ii) the distance distribution between connected users, iii) the dependence of the reciprocity on the distance, iv) the variation of the social overlap and the clustering with the distance. Besides numerical simulations, a mean-field approach is also used to study analytically the main statistical features of the networks generated by a simplified version of our model. The robustness of the results to changes in the model parameters is explored, finding that a balance between friend visits and long-range random connections is essential to reproduce the geographical features of the empirical networks.