Hyperbolic Tree of Similar Pages

7. Related Work
Hyperbolic trees have been employed commercially to visually display information in a tree form for easy navigation. An example of this is the hyperbolic tree product developed by Inxight Software which builds a hyperbolic tree on a website to allow users to navigate the website through the tree [1]. However, there has not been any application of hyperbolic trees to display the similarity relationships between web pages.
Munzer and Buchard discusses using a 3 dimensional hyperbolic tree to visualize the structure of the world wide web in [2]. However, they do not examine the specifics of visualizing similarity relationships. They solve the problem of visualizing cycles in trees through their 3D visualization. Also, the use of a 3D interface has significantly higher overhead than a 2D interface and might not be suitable in all applications.
There has also been other work done on visually displaying the results of web searches. Kartoo.com allows users to perform seaches and provides a graphical representation of the results Websites are represented by nodes and lines are drawn between nodes to show how they are semantically related to each other [3]. However, it does not allow the user to examine or search for results similar to the ones that are already displayed on screen.