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Orgad Keller

4 accepted papers

2025

Are LLMs Better than Reported? Detecting Label Errors and Mitigating Their Effect on Model Performance

EMNLP 2025

NLP benchmarks rely on standardized datasets for training and evaluating models and are crucial for advancing the field. Traditionally, expert annotations ensure high-quality labels; however, the cost of expert annotation does not scale well with the growing demand for larger datasets required by mo

Cited by 0SourcePDFScholar
2024

Multi-turn Reinforcement Learning with Preference Human Feedback

NeurIPS 2024poster

Reinforcement Learning from Human Feedback (RLHF) has become the standard approach for aligning Large Language Models (LLMs) with human preferences, allowing LLMs to demonstrate remarkable abilities in various tasks. Existing methods work by emulating the human preference at the single decision (tu…

Cited by 17SourcePDFScholar
2023

Factually Consistent Summarization via Reinforcement Learning with Textual Entailment Feedback

ACL 2023long

Despite the seeming success of contemporary grounded text generation systems, they often tend to generate factually inconsistent text with respect to their input. This phenomenon is emphasized in tasks like summarization, in which the generated summaries should be corroborated by their source articl…

Cited by 82SourcePDFScholar
2021

Targeted Negative Campaigning: Complexity and Approximations

AAAI 2021technical

Given the ubiquity of negative campaigning in recent political elections, we find it important to study its properties from a computational perspective. To this end, we present a model where elections can be manipulated by convincing voters to demote specific non-favored candidates, and study its pr…

Cited by 2SourcePDFScholar