Autor: Kosinski, R. - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: The SIRS Model of Epidemic Spreading in Virtual Society
Autorzy:: Grabowski, A.
Kosiński, R.
Powiązania:: https://bibliotekanauki.pl/articles/1812230.pdf
Data publikacji:: 2008-09
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 89.75.-k
89.65.-s
87.10.-e
Opis:: The phenomenon of epidemic spreading in a real social network is described and investigated numerically. On the basis of data concerning amount of time devoted daily to social interactions, the influence of human activity on spreading process is investigated in the frame of SIRS model. It was found that the activity of an individual is positively correlated with its connectivity and the relation has power law form. The influence of control measures on the spreading process is investigated as a function of initial conditions. The cost-effectiveness of mass immunizations campaigns and target vaccinations is compared. It was found that the form of activity distribution has significant influence on the spreading phenomena in the network.
Źródło:: Acta Physica Polonica A; 2008, 114, 3; 589-596
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 2.

Tytuł:: Cooperation Model with Costly Punishment
Autorzy:: Gradowski, T.
Mrowinski, M.
Kosinski, R.
Powiązania:: https://bibliotekanauki.pl/articles/1408976.pdf
Data publikacji:: 2012-02
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 87.23.Ge
89.65.-s
Opis:: In recent years the issue of costly punishment in systems where free-riding occurs has been a subject of extensive research in the field of game theory. This issue is present in many areas of human activities like paying taxes, using public transport, wireless Internet or P2P networks. It is one of the most common dilemmas in modern societies. In this work we present a simple model of cooperation with three possible strategies (cooperate, defect or punish). In the model players explore the available strategies according to their interactions with other players. We introduce two groups of parameters. The first group is sociological-like and it describes the social acceptance for the free riding behavior. The other group of parameters describes the economical aspects of the system - the cost and efficiency of punishers. Using differential equations approach, as well as an agent based model, we look for equilibrium properties of the system.
Źródło:: Acta Physica Polonica A; 2012, 121, 2B; B-31-B-33
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

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