141 citations · 511 across the 18 of their papers we have counts for
18 papers
Atlas of Science Collaboration, 1971-2020
Keisuke Okamura
The evolving landscape of interinstitutional collaborative research across 15 natural science disciplines is explored using the open data sourced from OpenAlex. This extensive expl…
Dynamic development of public attitudes towards science policymaking
Keisuke Okamura
Understanding the heterogeneity of mechanisms that form public attitudes towards science and technology policymaking is essential to the establishment of an effective public engage…
A half-century of global collaboration in science and the 'Shrinking World'
Keisuke Okamura
Recent decades have witnessed a dramatic shift in the cross-border collaboration mode of researchers, with countries increasingly cooperating and competing with one another. It is…
Three invariants of strange attractors derived through hypergeometric entropy
Keisuke Okamura
A new description of strange attractor systems through three geometrical and dynamical invariants is provided. They are the correlation dimension () and the correlatio…
Scientometric engineering: Exploring citation dynamics via arXiv eprints
Keisuke Okamura
Scholarly communications have been rapidly integrated into digitised and networked open ecosystems, where preprint servers have played a pivotal role in accelerating the knowledge…
Affinity-based extension of non-extensive entropy and statistical mechanics
Keisuke Okamura
Tsallis' non-extensive entropy is extended to incorporate the dependence on affinities between the microstates of a system. At the core of our construction of the extended entropy…