Although the simplified PageRank seems conceptually reasonable, it has several practical difficulties:
Page et al [2, p. 6] define, "Dangling links are simply links that point to any page with no outgoing links."
Page observes that this arises in at least two ways:
Issue: Where should their weight be distributed?
Wi does not distribute its PageRank elsewhere, so any weight given to Wi will be lost in later computations.
Page et al note: "Dangling links do not affect the ranking of any other page directly."
Google's solution: Remove dangling links from the system. Thus, the only links considered within the computation of PageRank are those links that go to known pages.
created: 10 February 2007|
last revised: 15 February 2007