Presentation 2023-03-03
Activation of Online User Dynamics Caused by External Stimuli Proportional to Node Degree
Ryusei Yamamoto, Masaki Aida,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) Today's social networking services (SNS) have become an important infrastructure for communication with others, including information dissemination and exchange. However, online social networks (OSNs) formed by SNSs often experience explosive user dynamics, such as online flame wars. The effects of such user dynamics extend to the real world, making them a serious social problem. To understand the user dynamics on OSNs, the oscillation model has been proposed based on the first principle that the effects of interactions between users propagate on an OSN at finite speeds. Based on the oscillation model, we have observed the temporal changes in the intensity of user activity when external stimuli are applied to random users on a network and found that the intensity of user activity temporarily increases, exhibiting a spike-like behavior. However, external stimuli in real networks are not random, and users with more links are likely to receive external stimuli more frequently. In this study, we show that when external stimuli are applied with a probability proportional to the nodal degree of the network, the intensity of user activity may be significantly stronger than when stimuli are applied randomly. In addition, we consider the cause of this phenomenon in terms of the relationship between the location of nodes receiving external stimuli and the eigenvectors of the network.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) online social networks / online user dynamics / oscillation model
Paper # IN2022-123
Date of Issue 2023-02-23 (IN)

Conference Information
Committee IN / NS
Conference Date 2023/3/2(2days)
Place (in Japanese) (See Japanese page)
Place (in English) Okinawa Convention Centre + Online
Topics (in Japanese) (See Japanese page)
Topics (in English) General
Chair Kunio Hato(Internet Multifeed) / Tetsuya Oishi(NTT)
Vice Chair Tsutomu Murase(Nagoya Univ.) / Takumi Miyoshi(Shibaura Insti of Tech.)
Secretary Tsutomu Murase(KDDI Research) / Takumi Miyoshi(Nagaoka Univ. of Tech.)
Assistant / Kotaro Mihara(NTT)

Paper Information
Registration To Technical Committee on Information Networks / Technical Committee on Network Systems
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Activation of Online User Dynamics Caused by External Stimuli Proportional to Node Degree
Sub Title (in English)
Keyword(1) online social networks
Keyword(2) online user dynamics
Keyword(3) oscillation model
1st Author's Name Ryusei Yamamoto
1st Author's Affiliation Tokyo Metropolitan University(TMU)
2nd Author's Name Masaki Aida
2nd Author's Affiliation Tokyo Metropolitan University(TMU)
Date 2023-03-03
Paper # IN2022-123
Volume (vol) vol.122
Number (no) IN-407
Page pp.pp.341-346(IN),
#Pages 6
Date of Issue 2023-02-23 (IN)