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https://rave.gatech.edu/help/index.php?action=history&feed=atom&title=Fit%2C_validation%2C_and_test_data 2025-12-14T16:36:49Z Revision history for this page on the wiki MediaWiki 1.25.5
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https://rave.gatech.edu/help/index.php?title=Fit,_validation,_and_test_data&diff=3364&oldid=prev 2013-08-23T14:51:40Z

<p>Admin moved page <a href="/help/index.php?title=Fit,_Validation,_and_Test_Data" class="mw-redirect" title="Fit, Validation, and Test Data">Fit, Validation, and Test Data</a> to <a href="/help/index.php?title=Fit,_validation,_and_test_data" title="Fit, validation, and test data">Fit, validation, and test data</a></p> <table class='diff diff-contentalign-left'> <tr style='vertical-align: top;'> <td colspan='1' style="background-color: white; color:black; text-align: center;">← Older revision</td> <td colspan='1' style="background-color: white; color:black; text-align: center;">Revision as of 14:51, 23 August 2013</td> </tr><tr><td colspan='2' style='text-align: center;'><div class="mw-diff-empty">(No difference)</div> </td></tr></table>

Admin
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https://rave.gatech.edu/help/index.php?title=Fit,_validation,_and_test_data&diff=2151&oldid=prev 2012-06-10T02:19:18Z

<p>‎<span dir="auto"><span class="autocomment">The Fit-Data Column</span></span></p> <table class='diff diff-contentalign-left'> <col class='diff-marker' /> <col class='diff-content' /> <col class='diff-marker' /> <col class='diff-content' /> <tr style='vertical-align: top;'> <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 02:19, 10 June 2012</td> </tr><tr><td colspan="2" class="diff-lineno" id="L8" >Line 8:</td> <td colspan="2" class="diff-lineno">Line 8:</td></tr> <tr><td class='diff-marker'>&#160;</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;"></td><td class='diff-marker'>&#160;</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;"></td></tr> <tr><td class='diff-marker'>&#160;</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 Fit-Data Column=</div></td><td class='diff-marker'>&#160;</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 Fit-Data Column=</div></td></tr> <tr><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: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>Rows are assigned to the fit, validation, and test sets by using a &quot;fit-data column&quot;. This is a column in the data set whose values indicate which rows should be assigned to which set. The default settings are that a value of 0 indicates fit data, 1 indicates validation data, and 2 indicates test data. You can create a fit-data column by clicking the &#039;[[Make New Fit-Data Column]]&#039; button in the [[Create New Model]] <del class="diffchange diffchange-inline">window</del>. When you make a new column it will be appended to the corresponding data set so that you can reuse the set assignments when making multiple models. &#160;</div></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>Rows are assigned to the fit, validation, and test sets by using a &quot;fit-data column&quot;. This is a column in the data set whose values indicate which rows should be assigned to which set. The default settings are that a value of 0 indicates fit data, 1 indicates validation data, and 2 indicates test data. You can create a fit-data column by clicking the &#039;[[Make New Fit-Data Column]]&#039; button in the [[Create New Model <ins class="diffchange diffchange-inline">GUI</ins>]]. When you make a new column it will be appended to the corresponding data set so that you can reuse the set assignments when making multiple models. &#160;</div></td></tr> <tr><td class='diff-marker'>&#160;</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;"></td><td class='diff-marker'>&#160;</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;"></td></tr> <tr><td class='diff-marker'>&#160;</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>In order to create a model, you must have some data assigned to the Fit Data set, but the Validation and Test sets may be empty. This is generally not recommended, however, because without a set of independent Test Data it is difficult to determine if a model has been &quot;over-fit&quot;. (Overfitting indicates that the model is extremely accurate when reproducing the exact data used to create it, i.e. the fit data, but is otherwise a poor model.)</div></td><td class='diff-marker'>&#160;</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>In order to create a model, you must have some data assigned to the Fit Data set, but the Validation and Test sets may be empty. This is generally not recommended, however, because without a set of independent Test Data it is difficult to determine if a model has been &quot;over-fit&quot;. (Overfitting indicates that the model is extremely accurate when reproducing the exact data used to create it, i.e. the fit data, but is otherwise a poor model.)</div></td></tr> </table>

Matt
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https://rave.gatech.edu/help/index.php?title=Fit,_validation,_and_test_data&diff=2111&oldid=prev 2012-06-09T22:58:42Z

<p>Created page with &quot;=Introduction= When creating a surrogate model, the rows in your data set are divided into three groups depending on how they will affect the model. Each type of surrogate model ...&quot;</p> <p><b>New page</b></p><div>=Introduction=<br /> When creating a surrogate model, the rows in your data set are divided into three groups depending on how they will affect the model. Each type of surrogate model uses the fit and validation data slightly differently, but the main ideas are:<br /> *Fit Data - The fit data rows are directly used to create the model. <br /> *Validation Data - Some surrogate models use the validation data to test a surrogate model as it is being created (e.g. Neural Networks do this). While the model is not directly fit to the validation data, the validation data does indirectly influence the model creation. <br /> *Test Data - Is not used at all during the model creation process. Therefore you can use this data to test the model&#039;s generalization to data it has never seen before. <br /> <br /> Note: Surrogate models that do not use validation data will treat any rows assigned to validation data as test data instead. <br /> <br /> =The Fit-Data Column=<br /> Rows are assigned to the fit, validation, and test sets by using a &quot;fit-data column&quot;. This is a column in the data set whose values indicate which rows should be assigned to which set. The default settings are that a value of 0 indicates fit data, 1 indicates validation data, and 2 indicates test data. You can create a fit-data column by clicking the &#039;[[Make New Fit-Data Column]]&#039; button in the [[Create New Model]] window. When you make a new column it will be appended to the corresponding data set so that you can reuse the set assignments when making multiple models. <br /> <br /> In order to create a model, you must have some data assigned to the Fit Data set, but the Validation and Test sets may be empty. This is generally not recommended, however, because without a set of independent Test Data it is difficult to determine if a model has been &quot;over-fit&quot;. (Overfitting indicates that the model is extremely accurate when reproducing the exact data used to create it, i.e. the fit data, but is otherwise a poor model.)</div>

Matt