<https://www.christopherspenn.com/2019/08/you-ask-i-answer-how-to-improve-marketing-roi-with-ai/#richSnippet>
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"You Ask, I Answer: How to Improve Marketing ROI with AI? - Christopher S. Penn - Marketing Data Science"
<https://www.christopherspenn.com/2019/08/you-ask-i-answer-how-to-improve-marketing-roi-with-ai/>