Abby Liu

Abby Liu is a Senior Machine Learning Engineer at Apple, specializing in Generative AI, Large Language Modeling, Computer Vision, and Natural Language Processing within the Photos team since March 2023. Prior to this role, Abby served as a Senior Machine Learning Engineer at Twitter from June 2021 to January 2023, focusing on large-scale language models and tools for the NLP signals team. Abby's experience also includes a position at eBay from February 2016 to June 2021, where significant contributions were made to core search and recommendation systems utilizing machine learning and NLP. Notable projects included query rewriting and ranking improvements, as well as the development of a semantic search application for eBay's shopbot. Academic background includes a Ph.D. in Aerospace Engineering Sciences from the University of Colorado Boulder and a research fellowship at the University of Michigan. Additionally, Abby was a Visiting Scholar at the National Center for Atmospheric Research from January 2011 to January 2014.