Search Results for author: Cuize Han

Found 5 papers, 0 papers with code

Mitigating Exploitation Bias in Learning to Rank with an Uncertainty-aware Empirical Bayes Approach

no code implementations26 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.

Learning-To-Rank Recommendation Systems

Scalable Feature Selection for (Multitask) Gradient Boosted Trees

no code implementations5 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.

feature selection

Aggregated Customer Engagement Model

no code implementations17 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.

Extended Missing Data Imputation via GANs for Ranking Applications

no code implementations4 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.

Imputation Information Retrieval +2

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