Weiyi Zhong

Popularity Bias in Correlation Graph-based API Recommendation for Mashup Creation

2024 · ACM Transactions on Intelligent Systems and Technology

The explosive growth of the Application Programming Interfaces (APIs) economy in recent years has led to a dramatic increase in available APIs. Mashup development, a dominant approach for creating data-centric applications based on APIs, has …

IdeFN: Identifying Unclicked Space False Negatives via Relaxed Partial Optimal Transport for Conversion Rate Prediction

2026 · Proceedings of the AAAI Conference on Artificial Intelligence

Accurate conversion rate (CVR) prediction is critical for recommender systems to capture user conversion intent and increase platform revenues. Traditional CVR models commonly suffer from sample selection bias (SSB) and data sparsity (DS), which has …