The World of Music, by researchers at Standford, MIT and Yahoo!, intends to render the music space in an unprecedented way. This visualization shows 9,276 artists and how they are related to each other. The artist relation data is mined from user ratings of artists in the Yahoo! Music service. The researchers used a technique called semidefinite programming (which is sometimes called Semidefinite embedding) to layout and cluster the data. Semidefinite embedding is a method for mapping high dimensional data into a lower dimensional Euclidean vector space.

visualcomplexity.com | The World of Music: SDP layout of high dimensional data