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Data Quality

A Year in Data - 2015 Review

2015 was a big year here at Factual, and of course we’re talking about the data. We’re obsessed with keeping our Global Places accurate and fresh, and believe it shows in the millions of data updates we made in 2015.

Changes in our Global Places Data – Q4 2015

When the world changes, Factual changes with it. That’s why we made millions of updates to our Global Places in Q4 of 2015. Since our last report, we’ve added 3.4 million new places, removed 1.4 million businesses no longer in operation, and updated at least one field1 in 3 million places for the 11 countries below....

Changes in our Global Places Data – Q3 2015

At Factual, we are dedicated to keeping our Global Places data clean and up to date at all times. We are constantly removing closed businesses, adding newly opened ones, and updating businesses that have otherwise changed. Below is a summary of some changes that we’ve made since our last update. In the 11 countries listed here,...

Investigating Various Pathologies of Low Quality Location Data #1 - App Permissions

Note: This article has also been published in GeoMarketing here A significant percentage of location data in the mobile ad ecosystem - anywhere from 30% - 70% - is of insufficient quality for appropriate use in location based mobile ad targeting, measurement, or analytics. In a previous post, Validating Mobile Ad Location Data at Factual, we...

Investigating Various Pathologies of Low Quality Location Data #1 - App Permissions - Lab Notes

Note: This is a companion post to Investigating Various Pathologies of Low Quality Location Data #1 - App Permissions Repeated latitude digits and where they come from Audience data validation is a crucial part of delivering accurate behavioral profiles, and as such we put a lot of effort into understanding the sources of inaccuracy in location...