Representation of Recorded Knowledge and Extended Date/Time Format: A Case Study of the Digital Public Library of America

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This presentation presents results of a study that analyzed representation of dates and time in one of the largest aggregators of digital content in the world -- the Digital Public Library of America (DPLA). The findings demonstrate both similarities and differences in date and time representation across DPLA content hub and service hub provider groups.

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Zavalina, Oksana; Phillips, Mark Edward; Kizhakkethil, Priya; Alemneh, Daniel Gelaw & Tarver, Hannah 2015-11-04/2015-11-06.

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This presentation presents results of a study that analyzed representation of dates and time in one of the largest aggregators of digital content in the world -- the Digital Public Library of America (DPLA). The findings demonstrate both similarities and differences in date and time representation across DPLA content hub and service hub provider groups.

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23 p.

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Abstract: Standardized representation of such properties of recorded knowledge products as important dates in their lifecycle facilitates discovery and transfer of knowledge. Among the multiple date and time format conventions, the Extended Date/Time Format (EDTF) specification is one of the most consistent and flexible, allowing for standardized representation of virtually all possible kinds of dates and date ranges. The expressivity of this specification makes it a candidate for becoming a single standard for encoding and normalization of dates and times in modern large-scale centralized databases which provide open access to vast amounts of cultural heritage data. This paper presents results of a study that analyzed representation of dates and time in one of the largest aggregators of digital content in the world -- the Digital Public Library of America (DPLA). The data strings of Date metadata field in over 8 million of DPLA metadata records were analyzed for compliance to EDTF specifications. The findings demonstrate both similarities and differences in date and time representation across DPLA content hub and service hub provider groups. This benchmark study provides empirical data – at both the individual provider level and the group level – about the overall rate of application of Date metadata in DPLA metadata records, distribution of EDTF-valid and non-EDTF-valid date strings by EDTF levels, and the most common date patterns across DPLA metadata.

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  • 11th International Conference on Knowledge Management (ICKM 2015), November 4-6, 2015. Osaka, Japan

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Representation of Recorded Knowledge and Extended Date/Time Format: A Case Study of the Digital Public Library of America (Article)

Representation of Recorded Knowledge and Extended Date/Time Format: A Case Study of the Digital Public Library of America

This paper presents results of a study that analyzed representation of dates and time in one of the largest aggregators of digital content in the world -- the Digital Public Library of America (DPLA). The findings demonstrate both similarities and differences in date and time representation across DPLA content hub and service hub provider groups.

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Representation of Recorded Knowledge and Extended Date/Time Format: A Case Study of the Digital Public Library of America, ark:/67531/metadc1803090

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  • 2015-11-04/2015-11-06

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  • May 20, 2021, 9:01 a.m.

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Zavalina, Oksana; Phillips, Mark Edward; Kizhakkethil, Priya; Alemneh, Daniel Gelaw & Tarver, Hannah. Representation of Recorded Knowledge and Extended Date/Time Format: A Case Study of the Digital Public Library of America, presentation, 2015-11-04/2015-11-06; (https://digital.library.unt.edu/ark:/67531/metadc1803093/: accessed June 2, 2024), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; crediting UNT College of Information.

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