For the past couple of weeks I've been investigating ways to measure the relative maturity of POI datasets from country to country, and am looking for some input from the community… Would you expect to find a correlation between the number of POIs and other types of information, like population, or the length of the street network, or something else? Would you expect this correlation to be different for developed countries vs. developing countries? And does anyone have thoughts on what measurable properties of a POI dataset should be considered when assessing the maturity of the dataset?
This is an interesting question. Maturity will depend largely on from where you are looking and what your intended use case is. You could expect POI data to be richer in a country whose data universe is more developed. i.e. the number of data product types available in a particular country, full postcodes, certain demographics, streets, full set of boundaries, mobile trace etc. But maturity will also be measured on the completeness and coverage of a countries POI data set. The quality of the geocoding available in the country and also currency i.e. how quickly do new stores and closed stores get reflected in the data. Completeness will always be a hard one to measure as the real world is constantly changing and reliable real world counts are often hard to come by.
Thanks Cecily and James. I am trying to assess the relative POI dataset maturity for ~150 countries. Comparisons to the real-world population of POIs would be ideal but this information is not readily available. For each dataset, I have looked at total POI counts relative to each country's population, length of street network, land area, and population density, and am not seeing a clear trend.
I suspect I will need to break down each POI dataset and look at a subset of POI categories, as well as the POI distribution within urban vs. rural areas.