PageRank: A logarithmic scale based on link equity which estimates the importance of web documents. Since PageRank is widely bartered Google's relevancy algorithms had to move away from relying on PageRank and place more emphasis on trusted links via algorithms such as TrustRank. The PageRank formula is: PR(A) = (1-d) + d (PR(T1)/C(T1) + ... + PR(Tn)/C(Tn)) PR= PageRank d= dampening factor (~0.85) c = number of links on the page PR(T1)/C(T1) = PageRank of page 1 divided by the total number of links on page 1, (transferred PageRank). In text: for any given page A the PageRank PR(A) is equal to the sum of the parsed partial PageRank given from each page pointing at it multiplied by the dampening factor plus one minus the dampening factor.

 

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PageRank: A logarithmic scale based on link equity which estimates the importance of web documents. Since PageRank is widely bartered Google's relevancy algorithms had to move away from relying on Pag . . . View Full Definition

Topic-Sensitive PageRank: Method of computing PageRank which instead of producing a single global score creates topic related PageRank scores.

Supplemental Index: Pages with very low pagerank, which are still relevant to a search query, often appear in the SERPs with a label of Supplemental Result. Googles representative’s say that this is not indicat . . . View Full Definition

Walled Garden: a group of pages which link to each other, but are not linked to by any other pages. A walled garden can still be indexed if it is included in a sitemap, but it will probably have very low pagerank.