在Apache IoTDB中测量时间序列数据质量

IF 2.6 3区计算机科学 Q2 COMPUTER SCIENCE, INFORMATION SYSTEMS

Proceedings of the Vldb Endowment Pub Date : 2023-08-01 DOI:10.14778/3611540.3611601

Yuanhui Qiu, Chenguang Fang, Shaoxu Song, Xiangdong Huang, Chen Wang, Jianmin Wang

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引用次数: 0

摘要

时间序列已经被发现存在各种数据质量问题，例如，由于物联网(IoT)中的传感器故障或网络传输错误。非常需要对数据库中存储的数百万个时间序列的数据质量问题有一个概述。在这个演示中，我们设计并实现了TsQuality，一个在Apache IoTDB中测量数据质量的系统。完整性、一致性、时效性和有效性这四个时间序列数据质量指标在Apache IoTDB中作为函数实现，在Apache Spark中作为算子实现。这些数据质量度量也可以通过导航不同粒度的脏点来解释。它还与大数据生态系统很好地集成，连接到Apache Zeppelin进行SQL查询，连接到Apache Superset进行数据质量概述。

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TsQuality: Measuring Time Series Data Quality in Apache IoTDB

Time series has been found with various data quality issues, e.g., owing to sensor failure or network transmission errors in the Internet of Things (IoT). It is highly demanded to have an overview of the data quality issues on the millions of time series stored in a database. In this demo, we design and implement TsQuality, a system for measuring the data quality in Apache IoTDB. Four time series data quality measures, completeness, consistency, timeliness, and validity, are implemented as functions in Apache IoTDB or operators in Apache Spark. These data quality measures are also interpreted by navigating dirty points in different granularity. It is also well-integrated with the big data eco-system, connecting to Apache Zeppelin for SQL query, and Apache Superset for an overview of data quality.

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来源期刊

Proceedings of the Vldb Endowment Computer Science-General Computer Science

CiteScore

7.70

自引率

0.00%

发文量

期刊介绍： The Proceedings of the VLDB (PVLDB) welcomes original research papers on a broad range of research topics related to all aspects of data management, where systems issues play a significant role, such as data management system technology and information management infrastructures, including their very large scale of experimentation, novel architectures, and demanding applications as well as their underpinning theory. The scope of a submission for PVLDB is also described by the subject areas given below. Moreover, the scope of PVLDB is restricted to scientific areas that are covered by the combined expertise on the submission’s topic of the journal’s editorial board. Finally, the submission’s contributions should build on work already published in data management outlets, e.g., PVLDB, VLDBJ, ACM SIGMOD, IEEE ICDE, EDBT, ACM TODS, IEEE TKDE, and go beyond a syntactic citation.