Peiyan Zhang

Adaptive Model and Strategy Routing for Cost-Efficient LLM Services

2026

In web-based AI services, providers typically host multiple large language models (LLMs) that exhibit diverse capabilities and incur different API costs. Meanwhile, LLM's performance depends not only on its inherent capacity but also on the …

Multi-Interactive Attention Network for Fine-grained Feature Learning in CTR Prediction

2021

In the Click-Through Rate (CTR) prediction scenario, user's sequential behaviors are well utilized to capture the user interest in the recent literature. However, despite being extensively studied, these sequential methods still suffer from three limitations. …