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Unformatted text preview: Statistical Data Mining ORIE 474 Fall 2007 Tatiyana Apanasovich 11/16/07 Link Analysis Introduction • Airline Route Maps are useful • Hyperlinks were revolutionary – Apple’s HyperCard (Bill Atkinson) • Claim that there are no more than 6 degrees of separation between any two people on the planet • Link Analysis is the data mining technique that addresses relationships and connections • Link Analysis is based on Graph Theory Introduction • As you would expect, Link Analysis has its limitations as a DM technique also • However, quite effective in these and similar situations – Identifying authoritative sources of information on the WWW by analyzing page links – Understanding physician referral patterns – Analyzing telephone call patterns Basic Graph Theory • Graphs are an abstraction used to represent relationships • Graphs consist of – Nodes (vertices) which are the things in the graph that have relationships – Edges are pairs of nodes connected by a relationship • Visualization is a key characteristic of a graph Basic Graph Theory • A path is an ordered sequence of nodes connected by edges – Flight Segments (legs) such as LA – Denver –...
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 Graph Theory, Basic Graph Theory

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