Visualizations of MARC Usage

As part of my work to reveal exactly how the MARC standard has been used over the several decades it has existed (available at “MARC Usage in WorldCat”), I’ve always wanted to produce visualizations of the data. Recently, with essential help from my colleagues JD Shipengrover and Jeremy Browning, I was able to do exactly …

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Thresholds for Discovery

I’m pleased to report that we have an article in the most recent Code4Lib Journal! The article, Thresholds for Discovery: EAD Tag Analysis in ArchiveGrid, and Implications for Discovery Systems is based on an analysis of how EAD (Encoded Archival Description) is used in the ArchiveGrid corpus. We go beyond that to look at EAD-in-use …

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Library Authorities Alternatives

Without delving into the dysfunctional politics that has led to the shutdown of most U.S. Government services, we thought it might be helpful to our library and archives colleagues to point out some alternatives to various library authority sources that have been shuttered at the Library of Congress. In some cases (for example, LCSH vs. …

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ISBNs in WorldCat

Recently a question came up on the BIBFRAME list about ISBNs, and how many of them were in MARC records. This is just the kind of question that OCLC Research is uniquely placed to answer, so I quickly wrote some simple Perl code to run as a Hadoop streaming job to find out. It was …

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