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Bernal Jimenez Gutierrez

6 accepted papers

2025

Attention in Large Language Models Yields Efficient Zero-Shot Re-Rankers

ICLR 2025poster

Information retrieval (IR) systems have played a vital role in modern digital life and have cemented their continued usefulness in this new era of generative AI via retrieval-augmented generation. With strong language processing capabilities and remarkable versatility, large language models (LLMs) h…

Cited by 3SourcePDFScholar
2025

Mind2Web 2: Evaluating Agentic Search with Agent-as-a-Judge

NeurIPS 2025poster

Agentic search such as Deep Research systems-where agents autonomously browse the web, synthesize information, and return comprehensive citation-backed answers-represents a major shift in how users interact with web-scale information. While promising greater efficiency and cognitive offloading, the…

Cited by 0SourceScholar
2024

HippoRAG: Neurobiologically Inspired Long-Term Memory for Large Language Models

NeurIPS 2024poster

In order to thrive in hostile and ever-changing natural environments, mammalian brains evolved to store large amounts of knowledge about the world and continually integrate new information while avoiding catastrophic forgetting. Despite the impressive accomplishments, large language models (LLMs), e…

2023

Aligning Instruction Tasks Unlocks Large Language Models as Zero-Shot Relation Extractors

ACL 2023findings

Recent work has shown that fine-tuning large language models (LLMs) on large-scale instruction-following datasets substantially improves their performance on a wide range of NLP tasks, especially in the zero-shot setting. However, even advanced instruction-tuned LLMs still fail to outperform small L…

2023

Solving the Right Problem is Key for Translational NLP: A Case Study in UMLS Vocabulary Insertion

EMNLP 2023long findings

As the immense opportunities enabled by large language models become more apparent, NLP systems will be increasingly expected to excel in real-world settings. However, in many instances, powerful models alone will not yield translational NLP solutions, especially if the formulated problem is not we…

Cited by 0SourcecodeScholar
2022

Thinking about GPT-3 In-Context Learning for Biomedical IE? Think Again

EMNLP 2022finding

Large pre-trained language models (PLMs) such as GPT-3 have shown strong in-context learning capabilities, which are highly appealing for domains such as biomedicine that feature high and diverse demands of language technologies but also high data annotation costs. In this paper, we present the firs…