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Related papers: Query Expansion by Prompting Large Language Models

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Query expansion is the reformulation of a user query by adding semantically related information, and is an essential component of monolingual and cross-lingual information retrieval used to ensure that relevant documents are not missed.…

Information Retrieval · Computer Science 2025-11-25 Olivia Macmillan-Scott , Roksana Goworek , Eda B. Özyiğit

Large Language Models (LLMs) are foundational in language technologies, particularly in information retrieval (IR). Previous studies have utilized LLMs for query expansion, achieving notable improvements in IR. In this paper, we thoroughly…

Information Retrieval · Computer Science 2024-07-02 Le Zhang , Yihong Wu , Qian Yang , Jian-Yun Nie

Using tools by Large Language Models (LLMs) is a promising avenue to extend their reach beyond language or conversational settings. The number of tools can scale to thousands as they enable accessing sensory information, fetching updated…

Information Retrieval · Computer Science 2024-12-06 Mohammad Kachuee , Sarthak Ahuja , Vaibhav Kumar , Puyang Xu , Xiaohu Liu

Query expansion, pivotal in search engines, enhances the representation of user information needs with additional terms. While existing methods expand queries using retrieved or generated contextual documents, each approach has notable…

Information Retrieval · Computer Science 2024-03-29 Pengyue Jia , Yiding Liu , Xiangyu Zhao , Xiaopeng Li , Changying Hao , Shuaiqiang Wang , Dawei Yin

Using large language models (LMs) for query or document expansion can improve generalization in information retrieval. However, it is unknown whether these techniques are universally beneficial or only effective in specific settings, such…

Information Retrieval · Computer Science 2024-02-28 Orion Weller , Kyle Lo , David Wadden , Dawn Lawrie , Benjamin Van Durme , Arman Cohan , Luca Soldaini

Large Language Models (LLMs) exhibit remarkable proficiency in addressing a diverse array of tasks within the Natural Language Processing (NLP) domain, with various prompt design strategies significantly augmenting their capabilities.…

Computation and Language · Computer Science 2024-08-05 Xiangyu Zhao , Chengqian Ma

Retrieval augmentation is critical when Language Models (LMs) exploit non-parametric knowledge related to the query through external knowledge bases before reasoning. The retrieved information is incorporated into LMs as context alongside…

Information Retrieval · Computer Science 2024-11-21 Mingzhu Wang , Yuzhe Zhang , Qihang Zhao , Junyi Yang , Hong Zhang

Recent studies demonstrate that query expansions generated by large language models (LLMs) can considerably enhance information retrieval systems by generating hypothetical documents that answer the queries as expansions. However,…

Information Retrieval · Computer Science 2024-02-29 Yibin Lei , Yu Cao , Tianyi Zhou , Tao Shen , Andrew Yates

Query rewriting plays a vital role in enhancing conversational search by transforming context-dependent user queries into standalone forms. Existing approaches primarily leverage human-rewritten queries as labels to train query rewriting…

Human-Computer Interaction · Computer Science 2023-10-19 Fanghua Ye , Meng Fang , Shenghui Li , Emine Yilmaz

Modern information retrieval must reconcile short, ambiguous queries with increasingly diverse and dynamic corpora. Query expansion (QE) remains a core technique for mitigating vocabulary mismatch, but its design space has been reshaped by…

Information Retrieval · Computer Science 2026-05-08 Minghan Li , Xinxuan Lv , Junjie Zou , Tongna Chen , Chao Zhang , Suchao An , Ercong Nie , Guodong Zhou

This paper introduces a simple yet effective query expansion approach, denoted as query2doc, to improve both sparse and dense retrieval systems. The proposed method first generates pseudo-documents by few-shot prompting large language…

Information Retrieval · Computer Science 2023-10-12 Liang Wang , Nan Yang , Furu Wei

In this paper, we systematically study the potential of pre-training with Large Language Model(LLM)-based document expansion for dense passage retrieval. Concretely, we leverage the capabilities of LLMs for document expansion, i.e. query…

Information Retrieval · Computer Science 2023-08-17 Guangyuan Ma , Xing Wu , Peng Wang , Zijia Lin , Songlin Hu

Large language models (LLMs) demonstrate their promise in tackling complicated practical challenges by combining action-based policies with chain of thought (CoT) reasoning. Having high-quality prompts on hand, however, is vital to the…

Machine Learning · Computer Science 2024-03-01 Xue Yan , Yan Song , Xinyu Cui , Filippos Christianos , Haifeng Zhang , David Henry Mguni , Jun Wang

Query expansion has been employed for a long time to improve the accuracy of query retrievers. Earlier works relied on pseudo-relevance feedback (PRF) techniques, which augment a query with terms extracted from documents retrieved in a…

Information Retrieval · Computer Science 2024-06-12 Muhammad Shihab Rashid , Jannat Ara Meem , Yue Dong , Vagelis Hristidis

Large Language Models (LLMs) have demonstrated remarkable performance across diverse tasks and exhibited impressive reasoning abilities by applying zero-shot Chain-of-Thought (CoT) prompting. However, due to the evolving nature of sentence…

Computation and Language · Computer Science 2024-02-09 Feihu Jin , Yifan Liu , Ying Tan

Information-seeking conversation systems are increasingly popular in real-world applications, especially for e-commerce companies. To retrieve appropriate responses for users, it is necessary to compute the matching degrees between…

Computation and Language · Computer Science 2022-11-03 Haojie Pan , Cen Chen , Chengyu Wang , Minghui Qiu , Liu Yang , Feng Ji , Jun Huang

Query expansion is an effective approach for mitigating vocabulary mismatch between queries and documents in information retrieval. One recent line of research uses language models to generate query-related contexts for expansion. Along…

Computation and Language · Computer Science 2022-10-14 Linqing Liu , Minghan Li , Jimmy Lin , Sebastian Riedel , Pontus Stenetorp

With the breakthroughs in large language models (LLMs), query generation techniques that expand documents and queries with related terms are becoming increasingly popular in the information retrieval field. Such techniques have been shown…

Information Retrieval · Computer Science 2025-07-16 Adam Yang , Gustavo Penha , Enrico Palumbo , Hugues Bouchard

This paper presents a novel approach termed Layer-of-Thoughts Prompting (LoT), which utilizes constraint hierarchies to filter and refine candidate responses to a given query. By integrating these constraints, our method enables a…

Computation and Language · Computer Science 2024-10-17 Wachara Fungwacharakorn , Nguyen Ha Thanh , May Myo Zin , Ken Satoh

Prompt engineering has emerged as an indispensable technique for extending the capabilities of large language models (LLMs) and vision-language models (VLMs). This approach leverages task-specific instructions, known as prompts, to enhance…

Artificial Intelligence · Computer Science 2025-03-18 Pranab Sahoo , Ayush Kumar Singh , Sriparna Saha , Vinija Jain , Samrat Mondal , Aman Chadha
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