Biography

I am currently a Research & Machine Learning Engineer at Shopee, where I work on model development for the retrieval and pre-rank stages of Shopee Search. Before that, I completed both my M.S. and B.S. in Computer Science at Guangdong University of Technology.

I work on recommender systems and causal machine learning, with a focus on generative recommendation and large recommendation models.

Research Interests

Recommender Systems Generative Recommendation Large Recommendation Models Causal Machine Learning Explainable AI

News

2025 Oct

Published a KDD paper on deep collaborative filtering and released new industry-scale recommendation preprints including OnePiece and ELBO-TDS.

Selected Publications

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2025

On the probability of necessity and sufficiency of explaining Graph Neural Networks: A lower bound optimization approach

Neural Networks 184:107065

2025

Embed Progressive Implicit Preference in Unified Space for Deep Collaborative Filtering

KDD 2025

2025

OnePiece: Bringing Context Engineering and Reasoning to Industrial Cascade Ranking System

CoRR abs/2509.18091

2025

A Probabilistic Framework for Temporal Distribution Generalization in Industry-Scale Recommender Systems

CoRR abs/2511.21032

2024

Feature Attribution with Necessity and Sufficiency via Dual-stage Perturbation Test for Causal Explanation

ICML 2024

2024

Where and How to Attack? A Causality-Inspired Recipe for Generating Counterfactual Adversarial Examples

AAAI 2024

Collaborators

Work Experience

Research & Machine Learning Engineer

Shopee, Search, Recommendation & Ads

2024 - Present

Working on model development for the retrieval and pre-rank stages of Shopee Search, with emphasis on industrial recommendation modeling, temporal generalization, and production iteration.

Service

Reviewer

NeurIPS, AAAI, SIGIR, and related venues.

Skills

Machine LearningRecommender systems, ranking, retrieval, multi-task learning
ModelingDeep recommendation models, representation learning, causal and counterfactual methods
EngineeringPython, SQL, PyTorch, large-scale training and inference pipelines
ExperimentationOffline evaluation, online A/B testing, iterative production optimization