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Deprecated: Creation of dynamic property BufferingStatsdDataFactory::$prefix is deprecated in /var/www/vhosts/rave.gatech.edu/httpdocs/help/includes/libs/BufferingStatsdDataFactory.php on line 38 https://rave.gatech.edu/help/index.php?title=Preferences&diff=3342&oldid=prevAdmin at 14:38, 23 August 20132013-08-23T14:38:19Z<p></p>
<table class='diff diff-contentalign-left'>
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<td colspan='2' style="background-color: white; color:black; text-align: center;">← Older revision</td>
<td colspan='2' style="background-color: white; color:black; text-align: center;">Revision as of 14:38, 23 August 2013</td>
</tr><tr><td colspan="2" class="diff-lineno" id="L4" >Line 4:</td>
<td colspan="2" class="diff-lineno">Line 4:</td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>*Each variable in the [[data set]] has an associated preference value.</div></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>*Each variable in the [[data set]] has an associated preference value.</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>*The preference values of all variables in the [[data set]] sum to 1.</div></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>*The preference values of all variables in the [[data set]] sum to 1.</div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;"></ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">Note that preferences are a property of [[data sets]], not a property of [[analyses]]. </ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;"></ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">The fact that the preferences sum to 1 makes them act like "weights" in determining how influential each variable is in contributing to some function. </ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;"></ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">The reason we call these values "preferences" is that they are most often used when forming multi-attribute utility or objective functions for use in [[optimization]] or other decision making activities. These functions are typically formulated so that larger weight values indicate higher decision maker preference for relative optimality in the corresponding variable.</ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;"></ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">Rave does not directly use the preference values for any built-in function. They are only used if you create a [[functional variable]] that is a function of the preferences by either:</ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">*Loading a user-supplied function that uses the [[three-variable-input format]], in which case the 2nd input will be the preferences.</ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">*Creating an objective function by clicking the "Create New Objective Fcn" button on the Model tab</ins></div></td></tr>
</table>Admin Deprecated: Creation of dynamic property ErrorException::$_mwLogId is deprecated in /var/www/vhosts/rave.gatech.edu/httpdocs/help/includes/exception/MWExceptionHandler.php on line 344
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Deprecated: Creation of dynamic property WikitextContent::$mText is deprecated in /var/www/vhosts/rave.gatech.edu/httpdocs/help/includes/content/TextContent.php on line 56 https://rave.gatech.edu/help/index.php?title=Preferences&diff=3341&oldid=prevAdmin: Created page with "''Not to be confused with: Rave preferences'' '''Preferences''' are a set of scalar values associated with each data set such that: *Each variable in the data set..."2013-08-23T14:27:07Z<p>Created page with "''Not to be confused with: <a href="/help/index.php?title=Rave_preferences&action=edit&redlink=1" class="new" title="Rave preferences (page does not exist)">Rave preferences</a>'' '''Preferences''' are a set of scalar values associated with each <a href="/help/index.php?title=Data_set" class="mw-redirect" title="Data set">data set</a> such that: *Each variable in the <a href="/help/index.php?title=Data_set" class="mw-redirect" title="Data set">data set</a>..."</p>
<p><b>New page</b></p><div>''Not to be confused with: [[Rave preferences]]''<br />
<br />
'''Preferences''' are a set of scalar values associated with each [[data set]] such that:<br />
*Each variable in the [[data set]] has an associated preference value.<br />
*The preference values of all variables in the [[data set]] sum to 1.</div>Admin