* Here we introduce the Extracted Features functionality (currently under beta release) that have recently been developed by the HathiTrust Research Center. This functionality is one of the ways in which users of the HathiTrust Research Center can perform non-consumptive analysis of subsets of the HathiTrust Digital Library's corpus that they have custom-selected by means of the workset mechanism available through the HTRC. (Currently, this functionality is available only for the HathiTrust Digital Library's public domain corpus, consisting of slightly less than 5 million volumes.)
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2.5 Access the HTRC Workset Builder
You should now be the at the screen shown below. Click on the “More options” link.
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In the secure mode, click on the "Switch To Maintenance Mode" button in the portal to switch to the secure mode.
2.6
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Prepare to search the HathiTrust Digital Library
You should now be at the screen shown below.
2.7 Restart a Virtual Machine
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