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Encyclopedia of Database Systems pp 1–4Cite as

Geo-social Networks

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Synonyms

Location-based social networks

Definition

A geo-social network (GeoSN) is an online social network augmented by geographical information. Using a GeoSN application, usually through mobile devices, users can check in at places, find friends in the vicinity, etc. A GeoSN can be either a traditional online social network (e.g., Facebook (http://www.facebook.com), Twitter (http://www.twitter.com), and Google+ (https://plus.google.com)) that has been enhanced with check-in functionality or a pure GeoSN (e.g., Foursquare (http://www.foursquare.com)) focused on location-based services.

A GeoSN can be modeled as a social graph G = (V, E) where (i) a node v ∈ V represents a user, (ii) each edge (u, v) ∈ E indicates the friendship between two users v and u ∈ V, and (iii) each node is associated with a list of coordinates of the locations visited by the corresponding user. Similar to online social networks, the social graph can be either directed or undirected, while the edges can be...

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Recommended Reading

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Authors and Affiliations

  1. Department of Computer Science and Engineering, Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, Hong Kong

    Nikos Armenatzoglou & Dimitris Papadias

Authors
  1. Nikos Armenatzoglou
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  2. Dimitris Papadias
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Corresponding author

Correspondence to Nikos Armenatzoglou .

Editor information

Editors and Affiliations

  1. Georgia Institute of Technology College of Computing, Atlanta, Georgia, USA

    Ling Liu

  2. University of Waterloo School of Computer Science, Waterloo, Ontario, Canada

    M. Tamer Özsu

Section Editor information

  1. Dept. of Computer Science and Eng., Hong Kong Univ. of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, Hong Kong SAR

    Dimitris Papadias

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Armenatzoglou, N., Papadias, D. (2014). Geo-social Networks. In: Liu, L., Özsu, M. (eds) Encyclopedia of Database Systems. Springer, New York, NY. https://doi.org/10.1007/978-1-4899-7993-3_80714-1

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  • DOI: https://doi.org/10.1007/978-1-4899-7993-3_80714-1

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  • Publisher Name: Springer, New York, NY

  • Online ISBN: 978-1-4899-7993-3

  • eBook Packages: Springer Reference Computer SciencesReference Module Computer Science and Engineering

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