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Analyzing Trust-Based Mixing Patterns in Signed Networks

  • Amit Singh Rathore
  • Mandar R. Mutalikdesai
  • Sanket Patil
Part of the Lecture Notes in Computer Science book series (LNCS, volume 8279)

Abstract

In some online social media such as Slashdot, actors are allowed to explicitly show their trust or distrust towards each other. Such a network, called a signed network, contains positive and negative edges. Traditional notions of assortativity and disassortativity are not sufficient to study the mixing patterns of connections between actors in a signed network, owing to the presence of negative edges. Towards this end, we propose two additional notions of mixing due to negative edges – anti-assortativity and anti-disassortativity – which pertain to the show of distrust towards “similar” nodes and “dissimilar” nodes respectively. We classify nodes based on a local measure of their trustworthiness, rather than based on in-degrees, in order to study mixing patterns. We also use some simple techniques to quantify a node’s bias towards assortativity, disassortativity, anti-assortativity and anti-disassortativity in a signed network. Our experiments with the Slashdot Zoo network suggest that: (i) “low-trust” nodes show varied forms of mixing – reasonable assortativity, high disassortativity, slight anti-assortativity and slight anti-disassortativity, and (ii) “high-trust” nodes mix highly assortatively while showing very little disassortativity, anti-assortativity or anti-disassortativity.

Keywords

signed networks social network analysis mixing patterns assortativity disassortativity anti-assortativity anti-disassortativity 

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Copyright information

© Springer International Publishing Switzerland 2013

Authors and Affiliations

  • Amit Singh Rathore
    • 1
  • Mandar R. Mutalikdesai
    • 2
  • Sanket Patil
    • 2
  1. 1.International School of Information ManagementUniversity of MysoreMysoreIndia
  2. 2.DataWeave Software Pvt. Ltd.BangaloreIndia

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