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From: Apache Wiki <wikidiffs@apache.org>
To: hadoop-commits@lucene.apache.org
Date: Sun, 13 Jan 2008 08:10:02 -0000
Message-ID: <20080113081002.17945.27556@eos.apache.org>
Subject: [Lucene-hadoop Wiki] Trivial Update of "NewsPersonalizationSystem" by
 udanax

Dear Wiki user,

You have subscribed to a wiki page or wiki category on "Lucene-hadoop Wiki" for change notification.

The following page has been changed by udanax:
http://wiki.apache.org/lucene-hadoop/NewsPersonalizationSystem

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  === MinHash ===
  
   * Randomly permute the universe of clicked stories
-   * {s^u^,,1,, , s^u^,,2,, , ... , s^u^,,m} = {s^'^,,1,, , s^'^,,2,, , ... , s^'^,,m}
+   * {s^u^,,1,, , s^u^,,2,, , ... , s^u^,,m} = {s^'^,,1,, , s^'^,,2,, , ... , s^'^,,m,,}
   * MH(u) = min(s^u^,,j,,) min defined by permutation
    * P{MH(u,,1,,) = MH(u,,2,,)} = | S,,u1,, I S,,u2 | / |S,,u1, Y S,,u2,, |
   * Pseudo-random permutation