Within the Yahoo Gemini platform, how would you create a 'lookalike audience' based on your existing highest-value converting customers?

To create a lookalike audience based on your highest-value converting customers within the Yahoo Gemini platform, you would first create a custom audience from that specific customer segment, and then use that custom audience as the seed for the lookalike audience. A 'lookalike audience' is a group of people who share similar characteristics and behaviors with an existing audience (your seed audience), allowing you to expand your reach to potential new customers. A 'custom audience' is a group of people you define using your own data, such as customer lists or website visitors. First, you need to upload a customer list containing information (e.g., email addresses, phone numbers) of your highest-value converting customers. You'll hash this data (using SHA256) for privacy before uploading. In Gemini, you create a new custom audience, selecting the option to upload your customer list. Once the custom audience is created and populated, you can then create a lookalike audience. When creating the lookalike audience, you select the custom audience of your highest-value customers as the 'source' or 'seed' audience. Gemini's algorithm will then analyze the characteristics of this seed audience and identify other users within the Yahoo network who share similar attributes, such as demographics, interests, and online behavior. The size and similarity of the lookalike audience can be adjusted to balance reach and precision. A smaller, more similar audience will likely have a higher conversion rate but a smaller reach, while a larger, less similar audience will have a broader reach but potentially a lower conversion rate.