Timeliness

  1. Stating the recency and frequency of data validation

Stating the recency and frequency of data validation

For the calculation of this metric we use this query:

PREFIX dcterms:<http://purl.org/dc/terms/>
SELECT DISTINCT ?o
WHERE{
{?s dcterms:accrualPeriodicity ?o}
UNION
{?s dcterms:Frequency ?o}
}

The output of this query can be a code that indicate the update frequency (may vary based on the KG considered). For example A stands for annual, M for monthly, D for daily, W for weekly. To quantize the metric we assign 1 if the data is indicated, 0 otherwise.