Figure - PMC

Skip to main content

An official website of the United States government

Here's how you know

Here's how you know

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you've safely connected to the .gov website. Share sensitive information only on official, secure websites.

View full-text article in PMC

. 2021 Dec 2;4:1352. doi: 10.1038/s42003-021-02867-8

Search in PMC
Search in PubMed
View in NLM Catalog
Add to search

© The Author(s) 2021

Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.

PMC Copyright notice

Fig. 3 — A visual depiction of the effect of adding nodes under different attachment mechanisms. In each example, 10 nodes are added, connecting their m = 4 links to nodes in the original network (indicated by the black nodes). Node size corresponds to its likelihood of gaining new links. a Example network, before node addition. b Example of uniform attachment. c Example of (simulated) gene expression preferential attachment. d Example of degree-based preferential attachment. e–g Depicts the change in the original network’s degree distribution after the addition of 10 nodes, under each attachment mechanism (uniform, gene expression, and degree based). The white bars are transparent to show overlap. While these histograms highlight the change in a single network property (degree, k), one can imagine a number of structural changes occurring following the addition of new nodes, depending on the attachment mechanism.