Decentralising attachment: Dynamic structure analysis in twitter as a flow-type information medium

Kiyonobu Kojima, Hideyuki Tokuda

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)

Abstract

Twitter includes aspects of both an online social network and an information-distribution network. Our focus is the latter. Because Twitter provides a low-cost mechanism for users to rewire links, we can expect the dynamic activity of optimizing link structures for the comfortable viewing of information. When tracking the chronological changes in the links of sampled users, we found a phenomenon in which users with more than 32 outbound links tended to connect to nodes with a middle-sized degree, although they first preferred to follow celebrities. We call this behavioural pattern decentralising attachment, which characterises flow-type media, where information is pushed to subscribers. When a high-degree node grows and acquires more links, information from it can easily be obtained from various routes. If the information- diffusion speed is fast enough, the value of direct links to high-degree nodes will decrease, and links to secondary senders who select information for the specific subscribers will become more important. Through a simulation based on the decentralising attachment, we explain the gentle and curved slope of the degree distribution found in Twitter. In addition, we found that frequent rewiring has the effect of impeding the growth of a high-degree node. In cooperation with mechanisms to guide users to a higher-degree node, decentralising attachment forms a network topology adapted to a collaborative filtering function for information diffusion. We believe that the proposed model will contribute to the design of future social media.

Original languageEnglish
Title of host publicationProceedings of the IADIS International Conferences - Web Based Communities and Social Media 2011, Social Media 2011, Internet Applications and Research 2011, Part of the IADIS, MCCSIS 2011
Pages65-72
Number of pages8
Publication statusPublished - 2011 Dec 1
EventIADIS International Conferences - Web Based Communities and Social Media 2011, Social Media 2011, Internet Applications and Research 2011, Part of the IADIS Multi Conference on Computer Science and Information Systems 2011, MCCSIS 2011 - Rome, Italy
Duration: 2011 Jul 222011 Jul 24

Publication series

NameProceedings of the IADIS International Conferences - Web Based Communities and Social Media 2011, Social Media 2011, Internet Applications and Research 2011, Part of the IADIS, MCCSIS 2011

Other

OtherIADIS International Conferences - Web Based Communities and Social Media 2011, Social Media 2011, Internet Applications and Research 2011, Part of the IADIS Multi Conference on Computer Science and Information Systems 2011, MCCSIS 2011
CountryItaly
CityRome
Period11/7/2211/7/24

Keywords

  • Information network
  • Rewire
  • Social filtering
  • Stock-flow
  • Twitter

ASJC Scopus subject areas

  • Computer Science (miscellaneous)
  • Information Systems

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