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Existing information retrieval systems are largely constrained by their reliance on vector inner products to assess query-document relevance, which naturally limits the expressiveness of the relevance score they can produce. We propose a…

信息检索 · 计算机科学 2025-05-02 Julian Killingback , Hansi Zeng , Hamed Zamani

This paper presents EasyRAG, a simple, lightweight, and efficient retrieval-augmented generation framework for automated network operations. Our framework has three advantages. The first is accurate question answering. We designed a…

计算与语言 · 计算机科学 2024-10-16 Zhangchi Feng , Dongdong Kuang , Zhongyuan Wang , Zhijie Nie , Yaowei Zheng , Richong Zhang

LLMs confront inherent limitations in terms of its knowledge, memory, and action. The retrieval augmentation stands as a vital mechanism to address these limitations, which brings in useful information from external sources to augment the…

信息检索 · 计算机科学 2026-01-06 Peitian Zhang , Shitao Xiao , Zheng Liu , Zhicheng Dou , Jian-Yun Nie

Multi-hop question answering is a challenging task with distinct industrial relevance, and Retrieval-Augmented Generation (RAG) methods based on large language models (LLMs) have become a popular approach to tackle this task. Owing to the…

计算与语言 · 计算机科学 2025-01-31 Zhouyu Jiang , Mengshu Sun , Lei Liang , Zhiqiang Zhang

Retrieval Augmented Generation (RAG) is a technique used to augment Large Language Models (LLMs) with contextually relevant, time-critical, or domain-specific information without altering the underlying model parameters. However,…

信息检索 · 计算机科学 2024-08-20 Laurent Mombaerts , Terry Ding , Adi Banerjee , Florian Felice , Jonathan Taws , Tarik Borogovac

Head Start programs utilizing GoEngage face significant challenges when new or rotating staff attempt to locate appropriate Tasks (modules) on the platform homepage. These difficulties arise from domain-specific jargon (e.g., IFPA, DRDP),…

计算与语言 · 计算机科学 2025-10-08 Bowen Wei

Advanced relevance models, such as those that use large language models (LLMs), provide highly accurate relevance estimations. However, their computational costs make them infeasible for processing large document corpora. To address this,…

信息检索 · 计算机科学 2025-05-08 Mandeep Rathee , V Venktesh , Sean MacAvaney , Avishek Anand

Financial disclosures such as 10-K filings present challenging retrieval problems due to their length, regulatory section hierarchy, and domain-specific language, which standard retrieval-augmented generation (RAG) models underuse. We…

计算工程、金融与科学 · 计算机科学 2025-09-16 Ying Li , Mengyu Wang , Miguel de Carvalho , Sotirios Sabanis , Tiejun Ma

We present a comparative study between cross-encoder and LLMs rerankers in the context of re-ranking effective SPLADE retrievers. We conduct a large evaluation on TREC Deep Learning datasets and out-of-domain datasets such as BEIR and…

信息检索 · 计算机科学 2024-03-18 Hervé Déjean , Stéphane Clinchant , Thibault Formal

With contrastive pre-training, sentence encoders are generally optimized to locate semantically similar samples closer to each other in their embedding spaces. In this work, we focus on the potential of their embedding spaces to be readily…

计算与语言 · 计算机科学 2023-05-22 Jimin Hong , Jungsoo Park , Daeyoung Kim , Seongjae Choi , Bokyung Son , Jaewook Kang

Visual reranking is effective to improve the performance of the text-based video search. However, existing reranking algorithms can only achieve limited improvement because of the well-known semantic gap between low level visual features…

信息检索 · 计算机科学 2011-12-22 Xinmei Tian , Dacheng Tao , Yong Rui

Long text classification is challenging for Large Language Models (LLMs) due to token limits and high computational costs. This study explores whether a Retrieval Augmented Generation (RAG) approach using only the most relevant text…

In this work we present a systematic empirical study focused on the suitability of the state-of-the-art multilingual encoders for cross-lingual document and sentence retrieval tasks across a number of diverse language pairs. We first treat…

计算与语言 · 计算机科学 2021-12-22 Robert Litschko , Ivan Vulić , Simone Paolo Ponzetto , Goran Glavaš

Reranking is a critical component in recommender systems, playing an essential role in refining the output of recommendation algorithms. Traditional reranking models have focused predominantly on accuracy, but modern applications demand…

信息检索 · 计算机科学 2025-02-04 Jingtong Gao , Bo Chen , Weiwen Liu , Xiangyang Li , Yichao Wang , Wanyu Wang , Huifeng Guo , Ruiming Tang , Xiangyu Zhao

We propose LaserTagger - a sequence tagging approach that casts text generation as a text editing task. Target texts are reconstructed from the inputs using three main edit operations: keeping a token, deleting it, and adding a phrase…

计算与语言 · 计算机科学 2019-09-04 Eric Malmi , Sebastian Krause , Sascha Rothe , Daniil Mirylenka , Aliaksei Severyn

Large Language Models (LLMs) have demonstrated superior listwise ranking performance. However, their superior performance often relies on large-scale parameters (\eg, GPT-4) and a repetitive sliding window process, which introduces…

计算与语言 · 计算机科学 2025-09-03 Wenhan Liu , Xinyu Ma , Yutao Zhu , Lixin Su , Shuaiqiang Wang , Dawei Yin , Zhicheng Dou

Retrieval-Augmented Generation (RAG) has become a widely adopted approach to enhance Large Language Models (LLMs) by incorporating external knowledge and reducing hallucinations. However, noisy or irrelevant documents are often introduced…

计算与语言 · 计算机科学 2026-01-07 Jingyu Liu , Jiaen Lin , Yong Liu

This paper systematically addresses the challenges of rule retrieval, a crucial yet underexplored area. Vanilla retrieval methods using sparse or dense retrievers to directly search for relevant rules to support downstream reasoning, often…

计算与语言 · 计算机科学 2025-05-19 Ziyang Huang , Wangtao Sun , Jun Zhao , Kang Liu

In knowledge-intensive tasks such as open-domain question answering (OpenQA), large language models (LLMs) often struggle to generate factual answers, relying solely on their internal (parametric) knowledge. To address this limitation,…

计算与语言 · 计算机科学 2025-04-29 Jinming Nian , Zhiyuan Peng , Qifan Wang , Yi Fang

We introduce the \textit{Extract-Refine-Retrieve-Read} (ERRR) framework, a novel approach designed to bridge the pre-retrieval information gap in Retrieval-Augmented Generation (RAG) systems through query optimization tailored to meet the…

计算与语言 · 计算机科学 2025-09-22 Youan Cong , Pritom Saha Akash , Cheng Wang , Kevin Chen-Chuan Chang