So our group decided to stick with the idea of circles and rings as the main mechanic of our data visualization. Here are some examples that we possibly want to borrow from:
SuperLove – we want to borrow the how it combines color-coded ring and also lines to highlight connections
Sound Mapping in NYC – we want to borrow its idea of mapping data radially by chronology and showing duration.
Skimming 2000 Ideas – we want to borrow how the size of each circle indicates popularity and how circles are colored in by default.