David S Carter
Library Blogs
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for Date: October 2009
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Serious games, Simulations and Natural Learning. Plus, FREE FOOD!
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For the past two years the University of Michigan Library has been making many of our digitized texts (including items that are in-copyright) available to persons with print disabilities through the HathiTrust Digital Library. Our Dean, Paul Courant, recently posted about this project on his blog so I thought it might be nice to offer more background and some technical information about this project.
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Here are the final results from the 2009 Racing Tournament. The top four overall racers received gift certificates for Get Your Game On. Thanks to everyone who participated. We're already planning our next tournament, probably in early 2010...
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Due to the Fall Break, the Computer & Video Game Archive will close today at 3pm. We will be closed Saturday through Tuesday, and reopen Wednesday at 10am, resuming regular hours.
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Here's the leaderboard after day three of the racing tournament. Competition continues through Saturday. Remember, you have to complete all five races in order to be eligible to win!
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Here's the leaderboard after day three of the racing tournament. Competition continues through Saturday. Remember, you have to complete all five races in order to be eligible to win!
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Here's the leaderboard after day two of the racing tournament. Competition continues through Saturday. Remember, you have to complete all five races in order to be eligible to win!
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Here's the leaderboard from day one of the racing tournament. Competition continues through Saturday, so expect these standings to change as the week goes on...
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We have been making improvements to our OAI provider (UMProvider). We host the metadata for HathiTrust public domain texts through the provider, as well as all the metadata for text and image collections in the UM Digital Library.
Our first improvement was to make it faster to harvest. Our provider uses mySQL tables to store, sort and provide access to the metadata. Our method for sorting the data was one of the causes for the slowness of the harvesting.
Our second improvement comes from our investigation into the increasing number of deleted HathiTrust records that were showing up in the provider, and a discrepancy between the number of records in the provider and the number of records in our HathiTrust databases. We have not fully determined the cause of this, but we have been able to restore over 30,000 HathiTrust records that were marked as deleted in the provider.
Consequently, we recommend you harvest the provider from scratch, whether the entire metadata set or a particular set. It will be quick, and you'll get those missed records. We will keep you posted on further improvements.
(The UMProvider can be accessed via http://quod.lib.umich.edu/cgi/o/oai/oai?verb=ListRecords&metadataPrefix=oai_dc. There is useful information about the HathiTrust records in the provider at http://www.hathitrust.org/data.)
Our first improvement was to make it faster to harvest. Our provider uses mySQL tables to store, sort and provide access to the metadata. Our method for sorting the data was one of the causes for the slowness of the harvesting.
Our second improvement comes from our investigation into the increasing number of deleted HathiTrust records that were showing up in the provider, and a discrepancy between the number of records in the provider and the number of records in our HathiTrust databases. We have not fully determined the cause of this, but we have been able to restore over 30,000 HathiTrust records that were marked as deleted in the provider.
Consequently, we recommend you harvest the provider from scratch, whether the entire metadata set or a particular set. It will be quick, and you'll get those missed records. We will keep you posted on further improvements.
(The UMProvider can be accessed via http://quod.lib.umich.edu/cgi/o/oai/oai?verb=ListRecords&metadataPrefix=oai_dc. There is useful information about the HathiTrust records in the provider at http://www.hathitrust.org/data.)