The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. ex. Some numerals are expressed as "XNUMX".
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The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. Copyrights notice
A moeda é uma das medidas importantes da qualidade dos dados. O principal objetivo do estudo sobre a moeda dos dados é determinar se um determinado item de dados está atualizado. Embora já existam vários trabalhos sobre determinação da moeda dos dados, todos os métodos propostos apresentam limitações. Alguns trabalhos exigem carimbos de data e hora de itens de dados que nem sempre estão disponíveis, e outros são baseados em certas regras monetárias que só podem decidir a moeda relevante e não podem expressar semântica incerta. Para superar as limitações dos métodos anteriores, este artigo introduz uma nova abordagem para determinar a moeda dos dados com base em regras monetárias incertas. Primeiro, uma classe de regras de moeda incerta é fornecida para inferir o possível tempo válido para um determinado item de dados e, em seguida, com base nas regras, a moeda dos dados é formalmente definida. Depois disso, um algoritmo de tempo polinomial para avaliar a moeda dos dados é fornecido com base nas regras de moeda incerta. Usando conjuntos de dados da vida real, a eficácia e eficiência do método proposto são verificadas experimentalmente.
Mohan LI
Guangzhou University
Jianzhong LI
Harbin Institute of Technology
Siyao CHENG
Harbin Institute of Technology
Yanbin SUN
Guangzhou University
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Mohan LI, Jianzhong LI, Siyao CHENG, Yanbin SUN, "Uncertain Rule Based Method for Determining Data Currency" in IEICE TRANSACTIONS on Information,
vol. E101-D, no. 10, pp. 2447-2457, October 2018, doi: 10.1587/transinf.2017EDP7378.
Abstract: Currency is one of the important measurements of data quality. The main purpose of the study on data currency is to determine whether a given data item is up-to-date. Though there are already several works on determining data currency, all the proposed methods have limitations. Some works require timestamps of data items that are not always available, and others are based on certain currency rules that can only decide relevant currency and cannot express uncertain semantics. To overcome the limitations of the previous methods, this paper introduces a new approach for determining data currency based on uncertain currency rules. First, a class of uncertain currency rules is provided to infer the possible valid time for a given data item, and then based on the rules, data currency is formally defined. After that, a polynomial time algorithm for evaluating data currency is given based on the uncertain currency rules. Using real-life data sets, the effectiveness and efficiency of the proposed method are experimentally verified.
URL: https://global.ieice.org/en_transactions/information/10.1587/transinf.2017EDP7378/_p
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@ARTICLE{e101-d_10_2447,
author={Mohan LI, Jianzhong LI, Siyao CHENG, Yanbin SUN, },
journal={IEICE TRANSACTIONS on Information},
title={Uncertain Rule Based Method for Determining Data Currency},
year={2018},
volume={E101-D},
number={10},
pages={2447-2457},
abstract={Currency is one of the important measurements of data quality. The main purpose of the study on data currency is to determine whether a given data item is up-to-date. Though there are already several works on determining data currency, all the proposed methods have limitations. Some works require timestamps of data items that are not always available, and others are based on certain currency rules that can only decide relevant currency and cannot express uncertain semantics. To overcome the limitations of the previous methods, this paper introduces a new approach for determining data currency based on uncertain currency rules. First, a class of uncertain currency rules is provided to infer the possible valid time for a given data item, and then based on the rules, data currency is formally defined. After that, a polynomial time algorithm for evaluating data currency is given based on the uncertain currency rules. Using real-life data sets, the effectiveness and efficiency of the proposed method are experimentally verified.},
keywords={},
doi={10.1587/transinf.2017EDP7378},
ISSN={1745-1361},
month={October},}
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TY - JOUR
TI - Uncertain Rule Based Method for Determining Data Currency
T2 - IEICE TRANSACTIONS on Information
SP - 2447
EP - 2457
AU - Mohan LI
AU - Jianzhong LI
AU - Siyao CHENG
AU - Yanbin SUN
PY - 2018
DO - 10.1587/transinf.2017EDP7378
JO - IEICE TRANSACTIONS on Information
SN - 1745-1361
VL - E101-D
IS - 10
JA - IEICE TRANSACTIONS on Information
Y1 - October 2018
AB - Currency is one of the important measurements of data quality. The main purpose of the study on data currency is to determine whether a given data item is up-to-date. Though there are already several works on determining data currency, all the proposed methods have limitations. Some works require timestamps of data items that are not always available, and others are based on certain currency rules that can only decide relevant currency and cannot express uncertain semantics. To overcome the limitations of the previous methods, this paper introduces a new approach for determining data currency based on uncertain currency rules. First, a class of uncertain currency rules is provided to infer the possible valid time for a given data item, and then based on the rules, data currency is formally defined. After that, a polynomial time algorithm for evaluating data currency is given based on the uncertain currency rules. Using real-life data sets, the effectiveness and efficiency of the proposed method are experimentally verified.
ER -