The Challenges of Data Quality and Data Quality Assessment in the Big Data Era

@article{Cai2015TheCO,
  title={The Challenges of Data Quality and Data Quality Assessment in the Big Data Era},
  author={Li Cai and Yangyong Zhu},
  journal={Data Sci. J.},
  year={2015},
  volume={14},
  pages={2}
}
High-quality data are the precondition for analyzing and using big data and for guaranteeing the value of the data. Currently, comprehensive analysis and research of quality standards and quality assessment methods for big data are lacking. First, this paper summarizes reviews of data quality research. Second, this paper analyzes the data characteristics of the big data environment, presents quality challenges faced by big data, and formulates a hierarchical data quality framework from the… Expand
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