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USAir97 is a binary undirected graph whose nodes are 332 airports in the United States and edges indicate whether there are direct flights between the airports. The visualization was created with the following steps:

1. load USAir97.mat; % load the network: 'A' weighted adjacency matrix, 'C' class labels (continents).
2. Y=wtsne_p(A,false); % run weighted t-SNE, without over-attraction initialilzation
3. DisplayVisualization(Y,C); % show the scatter plot, colors indicating continents

After getting the 2-D coordinates, we can supply them to graphviz to draw the graph with the major airport names, where the node size is proportional to the square root of its degree.

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