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Inter disciplina
versión On-line ISSN 2448-5705versión impresa ISSN 2395-969X
Resumen
FONTANELLI, Oscar; MANSILLA, Ricardo y MIRAMONTES, Pedro. Probability distributions in the complexity sciences: a contemporary perspective. Inter disciplina [online]. 2020, vol.8, n.22, pp.11-37. Epub 15-Ene-2021. ISSN 2448-5705. https://doi.org/10.22201/ceiich.24485705e.2020.22.76416.
Science in the 21st century seems to be governed by novel approaches involving interdisciplinary work, systemic perspectives and complexity theory concepts. These new paradigms force us to leave aside our elder mechanistic approaches and embrace new starting points based on stochasticity, chaoticity, statistics and probability. In this work we review the fundamental ideas of complexity theory and the classic probabilistic models to study complex systems, based on the law of large numbers, central limit theorems and stable distributions. We also talk about power laws as the most common model for phenomena showing long tail distributions and we explore the principal difficulties that arise in practice with this kind of models. We show a novel alternative for the description of this type of phenomena and lastly we show two examples that illustrate the applications of this new model.
Palabras llave : complex systems; probability distributions; power laws; central limit theorem; long tail distributions; scaling phenomena.