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Optimising the number of copies and storage protocols for print preservation of research journals

机译:优化副本数量和存储协议,以保存研究期刊的出版物

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摘要

Academic libraries are reducing their holdings of print journals as more of this material becomes available electronically. Our work was motivated by the desire of the management at JSTOR, a major electronic archive of research journals, to preserve 'clean' copies that retain full information accuracy from the vantage point of the researcher, but the broader community of librarians at research libraries is extremely concerned about this issue as well. We present results of a research project designed to provide guidelines and insight to JSTOR management and to the community of librarians at research institutions in this context. As a prelude, we report briefly on statistical analysis of 'defects' in the pages of 25 journals for their entire publication history. This provides a backdrop for our approach to the problem. We then present models for two storage protocols, both of which have the goal of finding minimum-cost or Pareto optimal policies for ensuring, with a high probability, survival of at least one copy for a specified time horizon. One protocol involves archiving only clean copies in a secure environment, and the second protocol is a hybrid approach that combines clean copies with backup copies that can be 'cleaned up' to replace clean copies that are lost or damaged. We also discuss other domains where our methodology can be applied.
机译:随着越来越多的电子材料可供使用,大学图书馆正在减少印刷期刊的拥有量。我们的工作是出于JSTOR(研究期刊的主要电子档案馆)的管理层的愿望所致,他们希望保留“干净的”副本,从研究者的角度出发,这些副本可以保持完整的信息准确性,但是研究图书馆中更广泛的图书馆员社区是也非常关注这个问题。我们介绍了一个研究项目的结果,旨在为这种情况下的JSTOR管理和研究机构的图书馆员社区提供指导和见识。作为序言,我们将简要报告25种期刊在其整个出版历史中对“缺陷”的统计分析。这为我们解决该问题的方法提供了背景。然后,我们介绍两种存储协议的模型,这两种存储协议的目标都是找到最低成本或Pareto最优策略,以确保在指定的时间范围内高概率地确保至少一个副本的生存期。一种协议涉及在安全环境中仅存档干净副本,第二种协议是一种混合方法,将干净副本与可以“清理”的备份副本结合起来,以替换丢失或损坏的干净副本。我们还将讨论可以应用我们的方法的其他领域。

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