Graph Visualization Techniques for Web Clustering Engines
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In this paper, we investigate the web snippet hierarchical clustering problem in its full extent by devising an algorithmic solution, and a software prototype called SnakeT (accessible at http://roquefort.di.unipi.it/), that: (1) draws the snippets from 16 Web search engines, the Amazon collection of books a9.com, the news of Google News and the blogs of Blogline; (2) builds the clusters on-the-fly (ephemeral clustering) in response to a user query without adopting any pre-defined organization in categories; (3) labels the clusters with sentences of variable length, drawn from the snippets and possibly missing some terms, provided they are not too many;