Chuan Meng

Deep research has emerged as an important task that aims to address hard queries that need extensive open-web exploration. To tackle it, most prior work equips large language model (LLM)-based agents with opaque web search APIs, enabling agents to iteratively issue search queries, retrieve extern...

Previous query performance prediction (QPP) methods typically return a single scalar value and do not require the predicted values to approximate a specific IR evaluation measure, leading to drawbacks: (i) a single scalar is insufficient to accurately represent different IR measures, especially w...