Derek Zhiyuan Cheng
Derek is a principal software engineer and engineering director at Google DeepMind, where he leads a team of ML researchers and engineers tackling problem-driven research and product integration. Recent interests include 1. efficient data representation learning; 2. model and data efficiency for RecSys & LLMs; and 3. user and ads modeling with LLMs. Derek has 40+ research publications in the field, and has contributed to over 100 launches in Google Ads, Play, Search and YouTube. Prior to joining Google in 2013, he finished his Ph.D. in Texas A&M University with a focus on geo-social data mining. Derek is also a proud Pinterest alumnus that really enjoyed building Pinterest's Homefeed with the homies.
Authored Publications
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Google
Unified Embedding: Battle-Tested Feature Representations for Web-Scale ML Systems
Ben Coleman
Ruoxi Wang
Lichan Hong
Advances in Neural Information Processing Systems (2023), pp. 56234-56255
Learning to Embed Categorical Features without Embedding Tables for Recommendation
Preview
Tiansheng Yao
Ting Chen
Lichan Hong
KDD (2021)
Beyond Point Estimate: Inferring Ensemble Prediction Variation from Neuron Activation Strength in Recommender Systems
Dong Lin
Lichan Hong
Yuyan Wang
WSDM (2021) (to appear)
Mixed Negative Sampling for Learning Two-tower Neural Networks in Recommendations
Ji Yang
Lichan Hong
Yang Li
Simon Wang
Taibai Xu
WWW '20: Companion Proceedings of the Web Conference 2020April 2020 (2020)
Sampling-Bias-Corrected Neural Modeling for Large Corpus Item Recommendations
Ji Yang
Lichan Hong
Lukasz Heldt
Aditee Ajit Kumthekar
Zhe Zhao
Li Wei
RecSys 2019
Beyond Globally Optimal: Focused Learning for Improved Recommendations
Alex Beutel
Hubert Pham
John Anderson
Proceedings of the 26th International Conference on World Wide Web, WWW 2017, Perth, Australia, April 3-7, 2017
Improving User Topic Interest Profiles by Behavior Factorization
Zhe Zhao
Lichan Hong
Proceedings of the 24th International Conference on World Wide Web, International World Wide Web Conferences Steering Committee, Republic and Canton of Geneva, Switzerland (2015), pp. 1406-1416
