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We propose a methodology that combines several advanced techniques in Large Language Model (LLM) retrieval to support the development of robust, multi-source question-answer systems. This methodology is designed to integrate information…

Artificial Intelligence · Computer Science 2024-12-25 Antony Seabra , Claudio Cavalcante , Joao Nepomuceno , Lucas Lago , Nicolaas Ruberg , Sergio Lifschitz

Efficient knowledge management plays a pivotal role in augmenting both the operational efficiency and the innovative capacity of businesses and organizations. By indexing knowledge through vectorization, a variety of knowledge retrieval…

Computation and Language · Computer Science 2024-04-23 Feihu Jiang , Chuan Qin , Kaichun Yao , Chuyu Fang , Fuzhen Zhuang , Hengshu Zhu , Hui Xiong

Retrieval approaches that score documents based on learned dense vectors (i.e., dense retrieval) rather than lexical signals (i.e., conventional retrieval) are increasingly popular. Their ability to identify related documents that do not…

Information Retrieval · Computer Science 2023-08-01 Hrishikesh Kulkarni , Sean MacAvaney , Nazli Goharian , Ophir Frieder

Fine-tuning of Large Language Models (LLMs) for downstream tasks, performed on domain-specific data has shown significant promise. However, commercial use of such LLMs is limited by the high computational cost required for their deployment…

Computation and Language · Computer Science 2025-03-06 Boris Nazarov , Darya Frolova , Yackov Lubarsky , Alexei Gaissinski , Pavel Kisilev

Building relevance models to rank documents based on user information needs is a central task in information retrieval and the NLP community. Beyond the direct ad-hoc search setting, many knowledge-intense tasks are powered by a first-stage…

Information Retrieval · Computer Science 2025-03-19 Mandeep Rathee , Sean MacAvaney , Avishek Anand

With the recent advancements in information technology there has been a huge surge in amount of data available. But information retrieval technology has not been able to keep up with this pace of information generation resulting in over…

Computation and Language · Computer Science 2017-10-24 Nishant Nikhil , Muktabh Mayank Srivastava

Dense passage retrieval (DPR) models show great effectiveness gains in first stage retrieval for the web domain. However in the web domain we are in a setting with large amounts of training data and a query-to-passage or a query-to-document…

Information Retrieval · Computer Science 2022-08-16 Sophia Althammer , Sebastian Hofstätter , Mete Sertkan , Suzan Verberne , Allan Hanbury

A key bottleneck in building automatic extraction models for visually rich documents like invoices is the cost of acquiring the several thousand high-quality labeled documents that are needed to train a model with acceptable accuracy. We…

Computation and Language · Computer Science 2022-11-01 Yichao Zhou , James B. Wendt , Navneet Potti , Jing Xie , Sandeep Tata

Large Language Models (LLMs) have achieved remarkable success across diverse natural language tasks, yet the reward models employed for aligning LLMs often encounter challenges of reward hacking, where the approaches predominantly rely on…

Computation and Language · Computer Science 2026-03-06 Biao Liu , Ning Xu , Junming Yang , Hao Xu , Xin Geng

Retrieval-Augmented Generation (RAG) has recently demonstrated the performance of Large Language Models (LLMs) in the knowledge-intensive tasks such as Question-Answering (QA). RAG expands the query context by incorporating external…

Machine Learning · Computer Science 2024-06-18 Zijian Hei , Weiling Liu , Wenjie Ou , Juyi Qiao , Junming Jiao , Guowen Song , Ting Tian , Yi Lin

Utilizing large language models (LLMs) for document reranking has been a popular and promising research direction in recent years, many studies are dedicated to improving the performance and efficiency of using LLMs for reranking. Besides,…

Information Retrieval · Computer Science 2025-04-11 Qi Liu , Haozhe Duan , Yiqun Chen , Quanfeng Lu , Weiwei Sun , Jiaxin Mao

The Query-By-Document (QBD) problem is an information retrieval problem where the query is a document, and the retrieved candidates are documents that match the query document, often in a domain or query specific manner. This can be crucial…

Information Retrieval · Computer Science 2025-05-09 Sriram Gopalakrishnan , Sunandita Patra

Scholarly communication is a rapid growing field containing a wealth of knowledge. However, due to its unstructured and document format, it is challenging to extract useful information from them through conventional document retrieval…

Information Retrieval · Computer Science 2024-09-16 Kanchan Shivashankar , Nadine Steinmetz

Background: Conducting Multi Vocal Literature Reviews (MVLRs) is often time and effort-intensive. Researchers must review and filter a large number of unstructured sources, which frequently contain sparse information and are unlikely to be…

Software Engineering · Computer Science 2025-09-17 Santiago Matalonga , Domenico Amalfitano , Jean Carlo Rossa Hauck , Martín Solari , Guilherme H. Travassos

Document-level relation extraction aims at inferring structured human knowledge from textual documents. State-of-the-art methods for this task use pre-trained language models (LMs) via fine-tuning, yet fine-tuning is computationally…

Computation and Language · Computer Science 2024-10-03 Yilmazcan Ozyurt , Stefan Feuerriegel , Ce Zhang

Determining which legal cases are relevant to a given query involves navigating lengthy texts and applying nuanced legal reasoning. Traditionally, this task has demanded significant time and domain expertise to identify key Legal Facts and…

Artificial Intelligence · Computer Science 2025-08-15 Shengjie Ma , Qi Chu , Jiaxin Mao , Xuhui Jiang , Haozhe Duan , Chong Chen

Retrieval-Augmented Large Language Models (LLMs), which incorporate the non-parametric knowledge from external knowledge bases into LLMs, have emerged as a promising approach to enhancing response accuracy in several tasks, such as…

Computation and Language · Computer Science 2024-03-29 Soyeong Jeong , Jinheon Baek , Sukmin Cho , Sung Ju Hwang , Jong C. Park

A long standing goal of the data management community is to develop general, automated systems that ingest semi-structured documents and output queryable tables without human effort or domain specific customization. Given the sheer variety…

Computation and Language · Computer Science 2025-03-10 Simran Arora , Brandon Yang , Sabri Eyuboglu , Avanika Narayan , Andrew Hojel , Immanuel Trummer , Christopher Ré

Retrieval Augmented Generation (RAG) frameworks improve the accuracy of large language models (LLMs) by integrating external knowledge from retrieved documents, thereby overcoming the limitations of models' static intrinsic knowledge.…

Information Retrieval · Computer Science 2025-09-19 Jingjie Zheng , Aryo Pradipta Gema , Giwon Hong , Xuanli He , Pasquale Minervini , Youcheng Sun , Qiongkai Xu

Large Language Models (LLMs) have shown promising performance in summary evaluation tasks, yet they face challenges such as high computational costs and the Lost-in-the-Middle problem where important information in the middle of long…

Computation and Language · Computer Science 2024-01-19 Yunshu Wu , Hayate Iso , Pouya Pezeshkpour , Nikita Bhutani , Estevam Hruschka