no code implementations • 26 May 2023 • Tao Yang, Cuize Han, Chen Luo, Parth Gupta, Jeff M. Phillips, Qingyao Ai
While previous studies have demonstrated the effectiveness of using user behavior signals (e. g., clicks) as both features and labels of LTR algorithms, we argue that existing LTR algorithms that indiscriminately treat behavior and non-behavior signals in input features could lead to suboptimal performance in practice.
no code implementations • 14 Oct 2021 • Grace Deng, Cuize Han, Tommaso Dreossi, Clarence Lee, David S. Matteson
Classification of large multivariate time series with strong class imbalance is an important task in real-world applications.
no code implementations • 5 Sep 2021 • Cuize Han, Nikhil Rao, Daria Sorokina, Karthik Subbian
Gradient Boosted Decision Trees (GBDTs) are widely used for building ranking and relevance models in search and recommendation.
no code implementations • 17 Aug 2021 • Priya Gupta, Cuize Han
In this paper, we present the offline and online analysis and results comparing the individual and aggregated customer engagement models trained on e-commerce data.
no code implementations • 4 Nov 2020 • Grace Deng, Cuize Han, David S. Matteson
We prove that the optimal GAN imputation is achieved for Extended Missing At Random (EMAR) and Extended Always Missing At Random (EAMAR) mechanisms, beyond the naive MCAR.