Figure 1: Social-issues (source: Jimmy Buehler ) |
Figure:2 (source: Zara Alexis) |
Many of us have used the expression "it's a small world" when we have met someone who knows someone else. These days we can feel how much the world seems to have shrunk through web interactions. Social media is one of the biggest sources to connect to people, often through 'friends of friends'. In the article The Small-World Phenomenon: An Algorithmic Perspective, by Jon Kleinberg, it is stated that "a social network exhibits the small-world phenomenon if, roughly speaking, any two individuals in the network are likely to be connected through a short sequence of intermediate acquaintances" and that "recent work has suggested that the phenomenon is pervasive in networks arising in nature and technology, and a fundamental ingredient in the structural evolution of the World Wide Web".