تقرير
A Model of Densifying Collaboration Networks
| العنوان: | A Model of Densifying Collaboration Networks |
|---|---|
| المؤلفون: | Burghardt, Keith A., Percus, Allon G., Lerman, Kristina |
| سنة النشر: | 2021 |
| المجموعة: | Computer Science Physics (Other) |
| مصطلحات موضوعية: | Physics - Physics and Society, Computer Science - Computers and Society, Computer Science - Social and Information Networks |
| الوصف: | Research collaborations provide the foundation for scientific advances, but we have only recently begun to understand how they form and grow on a global scale. Here we analyze a model of the growth of research collaboration networks to explain the empirical observations that the number of collaborations scales superlinearly with institution size, though at different rates (heterogeneous densification), the number of institutions grows as a power of the number of researchers (Heaps' law) and institution sizes approximate Zipf's law. This model has three mechanisms: (i) researchers are preferentially hired by large institutions, (ii) new institutions trigger more potential institutions, and (iii) researchers collaborate with friends-of-friends. We show agreement between these assumptions and empirical data, through analysis of co-authorship networks spanning two centuries. We then develop a theoretical understanding of this model, which reveals emergent heterogeneous scaling such that the number of collaborations between institutions scale with an institution's size. Comment: arXiv admin note: text overlap with arXiv:2001.08734 |
| نوع الوثيقة: | Working Paper |
| URL الوصول: | http://arxiv.org/abs/2101.11056 |
| رقم الأكسشن: | edsarx.2101.11056 |
| قاعدة البيانات: | arXiv |
| الوصف غير متاح. |