From: cvs@openprivacy.orgCVS update: openprivacy/htdocs/notes/reputations
Date: Monday January 8, 19101 @ 2:51
Author: fen
CVSWEB Options: -------------------
Main CVSWeb: http://openprivacy.org/cgi-bin/cvsweb/cvsweb.cgi
View this module: http://openprivacy.org/cgi-bin/cvsweb/cvsweb.cgi/openprivacy/htdocs/notes/reputations
-----------------------------------
Update of /usr/local/cvsroot/openprivacy/htdocs/notes/reputations
In directory openprivacy.org:/home/fen/projects/openprivacy/htdocs/notes/reputations
Modified Files:
survey.shtml
Log Message:
better definitions and page navigation
*****************************************************************
File: openprivacy/htdocs/notes/reputations/survey.shtml
CVSWEB Options: -------------------
CVSWeb: Annotate this file: http://openprivacy.org/cgi-bin/cvsweb/cvsweb.cgi/openprivacy/htdocs/notes/reputations/survey.shtml?annotate=1.4
CVSWeb: View this file: http://openprivacy.org/cgi-bin/cvsweb/cvsweb.cgi/openprivacy/htdocs/notes/reputations/survey.shtml?rev=1.4&content-type=text/x-cvsweb-markup
CVSWeb: Diff to previous version: http://openprivacy.org/cgi-bin/cvsweb/cvsweb.cgi/openprivacy/htdocs/notes/reputations/survey.shtml.diff?r1=1.4&r2=1.3
-----------------------------------
Index: openprivacy/htdocs/notes/reputations/survey.shtml
diff -u openprivacy/htdocs/notes/reputations/survey.shtml:1.3 openprivacy/htdocs/notes/reputations/survey.shtml:1.4
--- openprivacy/htdocs/notes/reputations/survey.shtml:1.3 Mon Jan 8 02:14:34 2001
+++ openprivacy/htdocs/notes/reputations/survey.shtml Mon Jan 8 02:51:50 2001
@@ -1,28 +1,23 @@
<!--#include virtual="/includes/top.html"-->
<!--#include virtual="/includes/navigation.html"-->
-<!-- $Id: survey.shtml,v 1.3 2001/01/08 10:14:34 fen Exp $ -->
+<!-- $Id: survey.shtml,v 1.4 2001/01/08 10:51:50 fen Exp $ -->
-<h2>Survey of Trust Metrics</h2>
+<h2>Survey of Reputation Systems and Trust Metrics</h2>
Survey of current open source reputation systems <br>
<font color="red">(<i>should we include closed source, too?</i>)</font><br>
including:
<ol>
- <li><a href="http://www.advogato.org/">
- advogato.org</a>
- <li><a href="http://www.freehaven.net/">
- freehaven.net</a>
- <li><a href="http://www.freenet.sourceforge.net/">
- freenet.sourceforge.net</a>
- <li><a href="http://www.mojonation.net/">
- mojonation.net</a>
- <li><a href="http://www.slashdot.org/">
- slashdot.org</a>
- <li><a href="http://www.sourceforge.net/">
- sourceforge.net</a>
+ <li><a href="#advogato">Advogato</a>
+ <li><a href="#freehaven">Free Haven</a>
+ <li><a href="#freenet">Freenet</a>
+ <li><a href="#mojonation">Mojo Nation</a>
+ <li><a href="#slashdot">Slashdot</a>
+ <li><a href="#sourceforge">SourceForge</a>
</ol>
-Working definitions:
+<h3>Working definitions</h3>
+
<blockquote>
<dl>
<dt><b>simple collaborative systems</b><br>
@@ -30,10 +25,20 @@
CSCW (Computer Supported Collaborative Work) community.</i><br>
<dd>Generally (and for this discussion) a collaborative system:
<ul>
- <li>maintains record of user inputs
+ <li>maintains record of entity activities (e.g. user inputs)
<li>averages inputs to achieve a "mass consciousness"
</ul>
<p>
+ <dt><b>reputation</b>
+ <dd>"overall quality or character as seen or judged by people in general"
+ [<a href="http://www.m-w.com/">Webster</a>]
+ <dd>Also, see the <a href="/reputations/">Reputation Server Overview</a>
+ <p>
+ <dt><b>trust</b>
+ <dd>"assured reliance on the character, ability, strength, or
+ truth of someone or something"
+ [<a href="http://www.m-w.com/">Webster</a>]
+ <p>
<dt><b>reputation systems</b>
<dd>Provide accountability by expanding upon collaborative systems by
weighting the average according to the <i>reputation</i> of each
@@ -45,30 +50,39 @@
system:
<ul>
<li>identifies each entity (e.g. via public key)
- <li>maintains record of user inputs
- <li>supports individual weighting of users
- <li>may support user assignment of weights ("who I trust")
+ <li>maintains record of entity activities (e.g. user inputs)
+ <li>supports individual weighting of entities
+ <li>may support entity/user assignment of weights ("who I trust")
</ul>
<p>
<dt><b>trust metrics</b>
+ <dd>A system by which trust is gathered, quantified and applied.
+ Such metrics are the cornerstone for a reputation system.
<p>
- <dt><b>trust management</b> (e.g. see
- <a href="http://www.cis.upenn.edu/~angelos/keynote.html">Keynote</a>)
+ <dt><b>trust management</b>
+ <dd>"A trust-management system provides standard, general-purpose
+ mechanisms for specifying application security policies and
+ credentials." [<a
+ href="http://www.cis.upenn.edu/~angelos/keynote.html">Keynote</a>]
+ <dd><i>Note that Keynote is orthogonal to what we are building (though we
+ may indeed make use of its services. It is mentioned here primarily
+ for completeness and to allay confusion.)</i>
</dl>
</blockquote>
-<p><hr><p>
+<a name="advogato"><p><hr><p></a>
-Advogato's <a href="http://www.advogato.org/trust-metric.html">
-trust metric</a>
+<a href="http://www.advogato.org/">Advogato</a>'s
+<a href="http://www.advogato.org/trust-metric.html">trust metric</a>
uses <b>seeds</b> (currently a defined group of four <i>Masters</i>) as the
root of the tree of accounts. The system is designed to <i>certify</i>
accounts at one of three different levels (Apprentice, Journeyer, and
Master) while minimizing the ability of bogus accounts to enter the system.
-<p><hr><p>
+<a name="freehaven"><p><hr><p></a>
-Free Haven's authors have written extensively on reputation systems, see
+<a href="http://www.freehaven.net/">Free Haven</a>'s
+authors have written extensively on reputation systems, see
<a href="http://www.freehaven.net/papers.html">their pubs list</a>.
What is of particular interest is their realization that security is
enhanced through performing transactions publicly (see <i>A Reputation
@@ -78,35 +92,43 @@
<font color="green">
Of all the systems reviewed so far, Free Haven has the most comprehensive
-idea of what is needed in a reputation system. From what I can tell, they
-do not yet see its full power, though...
+understanding of what is needed in a reputation system. From what I can
+tell, they do not yet see its full power, though...
</font>
-<p><hr><p>
+<a name="freenet"><p><hr><p></a>
-Freenet does not have reputations in any explicit manner. However,
+<a href="http://freenet.sourceforge.net/">Freenet</a>
+does not have reputations in any explicit manner. However,
since unpopular data gets dropped while popular data gets cached locally,
there is a kind of 'data-centric' reputation mechanism implicit in the
design.
-<p><hr><p>
+<a name="mojonation"><p><hr><p></a>
-Mojo Nation uses a private currency - mojo - for resource usage. Users that
+<a href="http://www.mojonation.net/">Mojo Nation</a>
+uses a private currency - mojo - for resource usage. Users that
contribute disk space or reliable servers get more mojo, and thus a better
reputation is the system. How mojo is converted to other - perhaps fungible
- assets remains to be seen.
-<p><hr><p>
+<a name="slashdot"><p><hr><p></a>
-Slashdot uses a set of semi-randomly picked moderators who can give karma
+<a href="http://www.slashdot.org/">Slashdot</a>
+uses a set of semi-randomly picked moderators who can give karma
points (both positive and negative) to posts. One problem that regularly
appears is people posting under names similar to a highly-regarded name to
confuse the moderators. A system of authentication and pet names could
alleviate this problem...
-<p><hr><p>
+<a name="sourceforge"><p><hr><p></a>
-Sourceforge has a peer rating system based on concepts from Advogato.
+<a href="http://www.sourceforge.net/">SourceForge</a>
+has a peer rating system based on concepts from Advogato.
+<p>
+
<!--#include virtual="/includes/bottom.html"-->
+
+
This archive was generated by hypermail 2b30 : Mon Jan 22 2001 - 15:52:14 PST