On the classical Maki-Thompson rumour model in continuous time


Belen S., Kropat E., Weber G.

CENTRAL EUROPEAN JOURNAL OF OPERATIONS RESEARCH, cilt.19, sa.1, ss.1-17, 2011 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 19 Sayı: 1
  • Basım Tarihi: 2011
  • Doi Numarası: 10.1007/s10100-009-0120-4
  • Dergi Adı: CENTRAL EUROPEAN JOURNAL OF OPERATIONS RESEARCH
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.1-17
  • Anahtar Kelimeler: Rumours, Maki-Thompson model, Stochastic process, Dynamical systems, Lambert-w function, Operations research, PSYCHOLOGY
  • Orta Doğu Teknik Üniversitesi Adresli: Evet

Özet

In this paper, the Maki-Thompson model is slightly refined in continuous time, and a new general solution is obtained for each dynamics of spreading of a rumour. It is derived an equation for the size of a stochastic rumour process in terms of transitions. We give new lower and upper bounds for the proportion of total ignorants who never learned a rumour and the proportion of total stiflers who either forget the rumour or cease to spread the rumour when the rumour process stops, under general initial conditions. Simulation results are presented for the analytical solutions. The model and these numerical results are capable to explain the behaviour of the dynamics of any other dynamical system having interactions similar to the ones in the stochastic rumour process and requiring numerical interpretations to understand the real phenomena better. The numerical process in the differential equations of the model is investigated by using error-estimates. The estimated error is calculated by the Runge-Kutta method and found either negligible or zero for a relatively small size of the population. This pioneering paper introduces a new mathematical method into Operations research, motivated by various areas of scientific, social and daily life, it presents numerical computations, discusses structural frontiers and invites the interested readers to future research.