TwERC: High Performance Ensembled Candidate Generation for Ads Recommendation at Twitter. - Vanessa Cai; Pradeep Prabakar; Manuel Serrano Rebuelta; Lucas Rosen; Federico Monti; Katarzyna Janocha; Tomo Lazovich; Jeetu Raj; Yedendra Shrinivasan; Hao Li; Thomas Markovich (AdKDD@KDD, 2023)