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AGjDPG: Arbeitsgruppe junge DPG

AGjDPG 5: Symposium SYSM

AGjDPG 5.2: Invited Talk

Thursday, March 10, 2016, 10:00–10:30, H1

Mapping science with variable-order Markov dynamics reveal overlapping fields and multidisciplinary journals — •Martin Rosvall — Umeå University, Sweden

To better understand the parallel human endeavor of science, we need good maps that both simplify and highlight the flows of ideas and underlying research organization. However, current maps of science cannot effectively identify the multilevel and overlapping fields of science with multidisciplinary journals. For example, whereas maps based on citations between journals in first-order Markov models can only assign each journal to a single field, maps based on multi-step citation chains in higher-order Markov models become computationally infeasible already for moderate-sized systems. To overcome these problems, we introduce a method that uses model selection to find the appropriate variable-order Markov model. We also present interactive maps of science that highlights the assignments of multidisciplinary journals and how ideas flow through those journals.