Visualizing iSAX as a Collapsible Tree

Although the zoomable icicle looks very promising, some people might want a visualization that looks like a tree but still has some of the versatility of the zoomable icicle. For those people, we are going to try the Collapsible Tree.

First, we go to the CollapsibleTree directory and then we run the Python web server. Then, we go to http://localhost:8000/. Figure 6.13 shows the output of the Collapsible Tree visualization:

Figure 6.13 – Visualizing iSAX as a Collapsible Tree

The main advantage of the Collapsible Tree is that we can expand or collapse nodes at will, which means that we can easily concentrate on the nodes that interest us the most instead of getting lost in the details of the iSAX index.

However, the Collapsible Tree does not display the number of subsequences stored under each subtree of the index.

In this last section, we saw the operation of the Collapsible Tree and understood its...