class_11_16 - Statistical Data Mining ORIE 474 Fall 2007...

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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 Apples 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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class_11_16 - Statistical Data Mining ORIE 474 Fall 2007...

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