Calculation Methods

There are 5 possibilities of calculating the overlap. By default we use the ‘Input-centric’ method. It is possible to change the way the overlap is calculated. If you wish to change the method of calculation, please reach out to your Account Manager.

• Input-centric method: amount of overlapping users / amount of users in input item x 100% (Default)
• Overlap-centric method: amount of overlapping users / amount of users in overlapping item x 100%
• Minimum method: amount of overlapping users / amount of users in smallest item (either input item or overlapping item) x 100%
• Maximum method: amount of overlapping users / amount of users in biggest item (either input item or overlapping item) x 100%
• Combined method: amount of overlapping users / (amount of users in input item + amount of users in overlapping item) x 100%

Examples

We have created an audience with 2000 users which we will use as our input item. Our overlapping item we selected contains 600 users. There are 500 overlapping users between our input item and overlapping item. With the calculations as mentioned above we will see the following outcomes:

• Input-centric method: 500 / 2000 x 100% = 25% (Default)

• Overlap-centric method: 500 / 600 x 100% = 83,3%

• Minimum method: 500 / 600 x 100% = 83,3%

• Maximum method: 500 / 2000 x 100% = 25%

• Combined method: 500 / (2000+600) x 100% = 19,2%