Jiayuan Ding

What the Reranker Sees: Multi-Aspect Page Annotation for Long-Document Multimodal Question Answering

This work proposes Trident, with two complementary components: Trident-R, a retriever-agnostic LLM reranker that converts each candidate into an LLM-readable semantic record, then performs a single adaptive-K rerank call; and Trident-S, a generation-side module that prompts the VLM under topical, entity, and structural lenses before synthesis.