Utshab Kumar Ghosh

Evidence-aware retrieval evaluation can change rankings but doesn't guarantee improved answer quality or retriever training, revealing a nuanced relationship between evaluation methods and downstream utility.

Contrastive scoring is key to the success of anchor-based reranking, but the complexity of anchor design may be overhyped, especially with stronger retrievers.

One-third of documents that seem useless to static readers are actually critical for guiding agentic search, revealing a fundamental disconnect in retrieval utility assessments.