Melinda Han Williams Voice Network Badge Voice Network contributor, an ongoing writer for our guest opinion column. Opinion ContributorMelinda Han Williams is the chief data scientist at Dstillery, where she is responsible for developing and implementing Dstillery's AI and machine learning solutions. She holds a Ph.D. in applied physics from Columbia University. Voice Brands Can Avoid Ad Fraud by Understanding Its Ever-Changing Nature When new detection methods come about, fraudsters learn how to sidestep them. Voice How Unusual, Stand-Out Insights Offer Clues Into Audience Preferences Sometimes the best way to market is not even on a brand's radar.