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Daniel Cohen

4 accepted papers

2025

Explain then Rank: Scale Calibration of Neural Rankers Using Natural Language Explanations from LLMs

ACL 2025finding

In search settings, calibrating the scores during the ranking process to quantities such as click-through rates or relevance levels enhances a system’s usefulness and trustworthiness for downstream users. While previous research has improved this notion of calibration for low complexity learning-to-…

2022

CODER: An efficient framework for improving retrieval through COntextual Document Embedding Reranking

EMNLP 2022main

Contrastive learning has been the dominant approach to training dense retrieval models. In this work, we investigate the impact of ranking context - an often overlooked aspect of learning dense retrieval models. In particular, we examine the effect of its constituent parts: jointly scoring a large n…

2020

Evaluating the Performance of Reinforcement Learning Algorithms

ICML 2020poster

Performance evaluations are critical for quantifying algorithmic advances in reinforcement learning. Recent reproducibility analyses have shown that reported performance results are often inconsistent and difficult to replicate. In this work, we argue that the inconsistency of performance stems from…