<?xml version="1.0" encoding="UTF-8"?><rss xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:content="http://purl.org/rss/1.0/modules/content/" xmlns:atom="http://www.w3.org/2005/Atom" version="2.0"><channel><title><![CDATA[The Anatomy of a Large-Scale Hypertextual Web Search Engine]]></title><description><![CDATA[<p dir="auto">Bella raga buongiorno a tutti:</p>
<p dir="auto">forse alcuni di voi saranno gia' a conoscenza di questo [url=http://www-db.stanford.edu/~backrub/google.html]documento: io non lo conoscevo e mi sembra interessante <img src="https://connect.gt/plugins/nodebb-plugin-emoji/emoji/customizations/cf2b9f4d-33e6-4abf-a06a-1fe2cb265afc-sbav.gif?v=4as8rolt52f" class="not-responsive emoji emoji-customizations emoji--sbav" title=":sbav:" alt=":sbav:" /> : vi riporto un passo breve sul PR:</p>
<p dir="auto">We assume page A has pages T1...Tn which point to it (i.e., are citations). The parameter d is a damping factor which can be set between 0 and 1. We usually set d to 0.85. There are more details about d in the next section. Also C(A) is defined as the number of links going out of page A. The PageRank of a page A is given as follows:</p>
<p dir="auto">PR(A) = (1-d) + d (PR(T1)/C(T1) + ... + PR(Tn)/C(Tn))</p>
<p dir="auto"><img src="https://connect.gt/plugins/nodebb-plugin-emoji/emoji/customizations/54a3bffb-5e4a-4eb8-81dc-99b2072e5d05-175.gif?v=4as8rolt52f" class="not-responsive emoji emoji-customizations emoji--ciauz" title=":ciauz:" alt=":ciauz:" /></p>
]]></description><link>https://connect.gt/topic/991/the-anatomy-of-a-large-scale-hypertextual-web-search-engine</link><generator>RSS for Node</generator><lastBuildDate>Thu, 16 Apr 2026 05:26:39 GMT</lastBuildDate><atom:link href="https://connect.gt/topic/991.rss" rel="self" type="application/rss+xml"/><pubDate>Thu, 05 May 2005 14:51:33 GMT</pubDate><ttl>60</ttl><item><title><![CDATA[Reply to The Anatomy of a Large-Scale Hypertextual Web Search Engine on Thu, 05 May 2005 16:39:32 GMT]]></title><description><![CDATA[<p dir="auto">non è del tutto vero..una pagina senza link non ha pr 0,15..quello non è il PR a cui siamo abituati bensì il vero pr..che va da 0 a infinito.</p>
<p dir="auto">Google invece ci mostra il pr in una scala da 1 a 10.</p>
<p dir="auto">in sostanza noi vediamo un logaritmo del vero valore del pr. Neanche il logaritmo è fisso..non è un logaritmo a base dieci..la base varia al variare del PR massimo.</p>
<p dir="auto">quindi il pr reale di una pagina senza BLs è 0.15, ma quello che noi vedremo è:</p>
<p dir="auto">logx(0,15) ...dove x è la base attuale (secondo me x è la radice undicesima del PR massimo)</p>
<p dir="auto">neanche d è fisso..di solito d=0.85 , ma non è obbligatorio</p>
]]></description><link>https://connect.gt/post/251727</link><guid isPermaLink="true">https://connect.gt/post/251727</guid><dc:creator><![CDATA[kerouac3001]]></dc:creator><pubDate>Thu, 05 May 2005 16:39:32 GMT</pubDate></item><item><title><![CDATA[Reply to The Anatomy of a Large-Scale Hypertextual Web Search Engine on Thu, 05 May 2005 15:46:51 GMT]]></title><description><![CDATA[<p dir="auto">E' la formula del PR no?</p>
<p dir="auto">Che c'è di nuovo?</p>
<p dir="auto"><a href="http://www.webworkshop.net/pagerank.html" rel="nofollow ugc">http://www.webworkshop.net/pagerank.html</a></p>
]]></description><link>https://connect.gt/post/251722</link><guid isPermaLink="true">https://connect.gt/post/251722</guid><dc:creator><![CDATA[beke]]></dc:creator><pubDate>Thu, 05 May 2005 15:46:51 GMT</pubDate></item><item><title><![CDATA[Reply to The Anatomy of a Large-Scale Hypertextual Web Search Engine on Thu, 05 May 2005 15:12:40 GMT]]></title><description><![CDATA[<p dir="auto">Aggiungerei che</p>
<p dir="auto">d=0,85</p>
<p dir="auto">da notare che una pag senza link ha PR= 0,15</p>
<p dir="auto"><img src="https://connect.gt/plugins/nodebb-plugin-emoji/emoji/customizations/54a3bffb-5e4a-4eb8-81dc-99b2072e5d05-175.gif?v=4as8rolt52f" class="not-responsive emoji emoji-customizations emoji--ciauz" title=":ciauz:" alt=":ciauz:" /></p>
<p dir="auto">Aggiungo.<br />
E' spiegato molto bene sul pdf segnalato da Fabio<br />
<a href="http://www.giorgiotave.it/forum/viewtopic.php?t=1029" rel="nofollow ugc">http://www.giorgiotave.it/forum/viewtopic.php?t=1029</a></p>
]]></description><link>https://connect.gt/post/251715</link><guid isPermaLink="true">https://connect.gt/post/251715</guid><dc:creator><![CDATA[and4linux]]></dc:creator><pubDate>Thu, 05 May 2005 15:12:40 GMT</pubDate></item></channel></rss>