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Development and evaluation of a continuous-time Markov chain model for detecting and handling data currency declines

机译:开发和评估用于检测和处理数据货币下跌的连续时间马尔可夫链模型

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摘要

Data currency declines, caused by recorded data values becoming outdated, can damage the usability and accountability of data resources. Detecting and updating outdated values may improve data currency and reduce the associated damage, but such efforts may be costly and cannot always be justified. This study models currency decline scenarios using a continuous-time Markov chain stochastic process with a finite number of states, each reflecting a valid data value. The model considers state transition probabilities, transition time distributions, and the tradeoff between the damage associated with outdated data and the cost of reacquisition. The proposed formulation permits the currency level to be estimated without having to rely on a baseline for comparison, as well as the prediction of future currency declines, assessment of their accumulated damage, and optimization of the timing of cost-effective data auditing and reacquisition. The study introduces a comprehensive evaluation of the proposed model, using a large real-world dataset relating to the handling of insurance claims over multiple time periods. The evaluation results highlight the applicability of the model, and its potential contribution to proactive data quality management and cost-effective handling of currency declines. (C) 2017 Elsevier B.V. All rights reserved.
机译:由记录的数据值过时导致的数据币种下降会损坏数据资源的可用性和责任感。检测和更新过时的值可以改善数据流通性并减少相关的损坏,但是这样的努力可能代价高昂并且不能总是合理的。本研究使用具有有限数量状态的连续时间马尔可夫链随机过程对货币下跌情景进行建模,每个状态都反映了有效的数据值。该模型考虑了状态转换概率,转换时间分布以及与过时数据相关的损害与重新获得成本之间的折衷。提议的公式允许估算货币水平,而不必依赖基准进行比较,以及预测未来货币贬值,评估其累计损失以及优化具有成本效益的数据审核和重新购置的时间。这项研究使用与多个时间段内处理保险索赔有关的大型实际数据集,对提出的模型进行了全面评估。评估结果突出了该模型的适用性,以及该模型对主动数据质量管理和货币下跌的成本有效处理的潜在贡献。 (C)2017 Elsevier B.V.保留所有权利。

著录项

  • 来源
    《Decision support systems》 |2017年第11期|82-93|共12页
  • 作者

    Zak Yuval; Even Adir;

  • 作者单位

    Ben Gurion Univ Negev, Dept Ind Engn & Management, POB 653, IL-8410501 Beer Sheva, Israel;

    Ben Gurion Univ Negev, Dept Ind Engn & Management, POB 653, IL-8410501 Beer Sheva, Israel;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Data quality management; Data currency; Continuous-time Markov chain;

    机译:数据质量管理;数据货币;连续时间马尔可夫链;

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