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by mpeg
1126 days ago
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We went through this in the ad world before GDPR existed. Companies were selling datasets for advertising and, I remember one of my clients (one of the largest ad agencies in the world) telling me they had over 100 sources of data they augmented their publisher data with but they tested and saw there was only about 20% uniqueness on average between sources. They were buying the same data again and again, recycled and repackaged. |
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