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Improve Google Page Rank
September 1, 2010September 1, 2010 Add comment0 comments _Uncategorized _Uncategorized
Is buy aion kina Page Rank Calculation still following the BackRub Algorithm? An examination of the PR algorithm, with examples from sto gold real world sites. Many a time and oft, we hear the speculation that buy aion gold the Page Rank Calculation has changed. Disappointingly, it is voiced by people who should know better. Perhaps the green monster aion power level of jealousy at seeing a spammy (competitor) site or a google bomb taking a site to PR-7 gets the better of their judgement. We will proceed to shatter a few urban legends. aion gold 1. Home page is necessarily buy cheap wow gold a higher PR than the rest of the site. 2. Older pages war gold get highest PR. 3. Google considers on page factors or contents cheap aion kinah to judge PR. 4. Pages with most external link backs get the highest PR. To justify our assertions cataclysm power leveling more rigorously, lets first quickly introduce the Page aion gold Rank Calculation. Page rank measures the importance of cheap ff14 gil a page using the Google page rank formula: PR(A) = (1-d) + d (PR(T1)/C(T1) + ... + PR(Tn)/C(Tn)) The page rank shown on a tool bar is actually a ff14 gil scaled number between 0-10. The scaling is logarithmic to accommodate the widely different number of IBLs, where a linear scale would not convey final fantasy xiv power level the information appropriately. While we are not privy to the log factor lf cheap aion power leveling that Google uses for its Page Rank tool bar normalization, we take a stab at the number by making a few assumptions. We assume that Google is the highest ranking PR10 page. We use gw2 power level the number of links incoming to Google reported by Google itself. On March 29, 2006 it shows it to be 3,750,000 links. We buy ffxiv gil further assume that the average Page rank of the links pointing to the Google home page is PR 1. Therefore, to obtain the upper bound cheap wow gold of the log factor(lf), we just take the appropriate root. (e.g. ((Incoming Links to Google)^(1/(Google PR-Average_Incoming_PR)) ) ). This boils down to cheapest wow gold (3.75*10^6)^(1/(9)) or lf=5.38. Naturally, as the size of the web increases, or the number of back links that Google exports to outside world increases, lf is likely to increase. Our tool allows you to set cheap aion gold a different lf. We use the following formula to scale numbers to the RPR( warhammer gold real non normalized PR) and obtain the lower and upper bounds. ((lf)^(n)) = warhammer gold for sale < RPRn < ((lf)^(n+1)) As an example when n=5, 4507 < PR-5 cheap aoc gold < 24,248 Naturally, some pages are a very strong PR-5(i.e. almost age of conan gold a PR-6), or a very weak PR-6. Therefore, we allow a user to set the strength of the page. The default is 0.5(i.e. its the equivalent of a PR5.5 aion power level page).Now, if the above holds, then 1, 2 or 3 are irrelevant. Our contention is that Google has not changed the Page Rank calculation in any significant way, aside from tweaking the constants.The cheap wow power level proof is obviously in the pudding. Lets take three sample sites and see how the update of April 6, 2006 has affected them. We buy wow cataclysm turn to our Event Tickets Website and examine two pages on the site.
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