This file is from Wikimedia Commons and may be used by other projects.
The description on its file description page there is shown below.
Summary
DescriptionWatts Strogatz graph.svg
فارسی: مقایسهی یک گراف حلقوی معمولی (چپ)، یک گراف دنیای کوچک که تعدادی از اتصالات به طور تصادفی تغییر کردهاند (وسط)، و یک گراف تصادفی که همهی اتصالات به طور تصادفی تغییر کردهاند. (راست)
to share – to copy, distribute and transmit the work
to remix – to adapt the work
Under the following conditions:
attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
share alike – If you remix, transform, or build upon the material, you must distribute your contributions under the same or compatible license as the original.
Comparison of a regular ring graph (left), a small-world graph with some edges randomly rewired (center), and a random graph with all edges randomly rewired (right).