Bevan Koopman
- Papers
- 9
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Authored papers
9DiffRetriever: Parallel Representative Tokens for Retrieval with Diffusion Language Models
arXiv 2026
Rank-R1: Enhancing Reasoning in LLM-based Document Rerankers via Reinforcement Learning
arXiv 2025
Document Screenshot Retrievers are Vulnerable to Pixel Poisoning Attacks
arXiv 2025
PromptReps: Prompting Large Language Models to Generate Dense and Sparse Representations for Zero-Shot Document Retrieval
arXiv 2024
Rank-DistiLLM: Closing the Effectiveness Gap Between Cross-Encoders and LLMs for Passage Re-Ranking
arXiv 2024
Starbucks: Improved Training for 2D Matryoshka Embeddings
arXiv 2024
Set-Encoder: Permutation-Invariant Inter-Passage Attention for Listwise Passage Re-Ranking with Cross-Encoders
arXiv 2024
Longitudinal Data and a Semantic Similarity Reward for Chest X-Ray Report Generation
arXiv 2023
AgAsk: An Agent to Help Answer Farmer's Questions From Scientific Documents
arXiv 2022
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