Bursting activity spreading through asymmetric interactions

Tomokatsu Onaga*, Shigeru Shinomoto

*この研究の対応する著者

研究成果: Conference contribution

抄録

People communicate with those who have the same background or share a common interest by using a social networking service (SNS). News or messages propagate through inhomogeneous connections in an SNS by sharing or facilitating additional comments. Such human activity is known to lead to endogenous bursting in the rate of message occurrences. We analyze a multi-dimensional self-exciting process to reveal dependence of the bursting activity on the topology of connections and the distribution of interaction strength on the connections. We determine the critical conditions for the cases where interaction strength is regulated at either the point of input or output for each person. In the input regulation condition, the network may exhibit bursting with infinitesimal interaction strength, if the dispersion of the degrees diverges as in the scale-free networks. In contrast, in the output regulation condition, the critical value of interaction strength, represented by the average number of events added by a single event, is a constant 1-1/v2 0.3, independent of the degree dispersion. Thus, the stability in human activity crucially depends on not only the topology of connections but also the manner in which interactions are distributed among the connections.

本文言語English
ホスト出版物のタイトルProceedings - 10th International Conference on Signal-Image Technology and Internet-Based Systems, SITIS 2014
出版社Institute of Electrical and Electronics Engineers Inc.
ページ388-395
ページ数8
ISBN(電子版)9781479979783
DOI
出版ステータスPublished - 2014 1 1
外部発表はい
イベント10th International Conference on Signal-Image Technology and Internet-Based Systems, SITIS 2014 - Marrakech, Morocco
継続期間: 2014 11 232014 11 27

Other

Other10th International Conference on Signal-Image Technology and Internet-Based Systems, SITIS 2014
国/地域Morocco
CityMarrakech
Period14/11/2314/11/27

ASJC Scopus subject areas

  • コンピュータ グラフィックスおよびコンピュータ支援設計
  • 信号処理
  • コンピュータ ネットワークおよび通信

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