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 |
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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月 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月 23 → 2014 11月 27 |
Other
Other | 10th International Conference on Signal-Image Technology and Internet-Based Systems, SITIS 2014 |
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国/地域 | Morocco |
City | Marrakech |
Period | 14/11/23 → 14/11/27 |
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