Which Orchard is Better Organized? A Network Science Puzzle

Have you ever tried to organize a messy room? You might group all your books on a shelf, all your clothes in a closet, and all your computer gear on a desk. In the world of network science, we have a way to measure exactly how well-organized something is. This measure is called modularity.

The Puzzle

Let's look at a "fruity" example. We have two "orchards" (networks) below. In each orchard, the trees (nodes) are partitioned into three distinct communities:

  • Açaí (Purple)

  • Cajá (Yellow)

  • Goiaba (Green)



The Question: Which of the two orchards has the highest modularity? What is this value, rounded to two decimal places?

A. Orchard 1, M = 0.36 

B. Orchard 1, M = 0.40 

C. Orchard 2, M = 0.36 

D. Orchard 2, M = 0.40

E. None of the above


Original idea by: Augusto

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