01Jul '16

Deliverable 1.3 - State-of-the-Art Analysis of Open Data Quality Assessment Metrics and Algorithms

Deliverable 1.3 - State-of-the-Art Analysis of Open Data Quality Assessment Metrics and Algorithms

This report summarizes the current state of the art (2016) on data quality by analysing research papers and projects. Details on data quality dimensions and metrics are given and implementation specifics regarding the assessment of these metrics are discussed. The report distinguishes DQ metrics which are specific for data portals, and metrics with a more general DQ assessment aspiration. Metrics are further divided into such which target the data portal or process level, and those which are relevant to the actual data itself. For the latter, we differentiate between subjective and objective metrics. Special attention is paid to those metrics which are relevant in a linked data context, and to those which are suitable to automatically assess and/or improve data quality.