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Retrieval-augmented generation (RAG) based large language models (LLMs) are widely used in finance for their excellent performance on knowledge-intensive tasks. However, standardized documents (e.g., SEC filing) share similar formats such…

Information Retrieval · Computer Science 2025-11-07 Jaeyoung Choe , Jihoon Kim , Woohwan Jung

Multimodal relation extraction (MRE) is a crucial task in the fields of Knowledge Graph and Multimedia, playing a pivotal role in multimodal knowledge graph construction. However, existing methods are typically limited to extracting a…

Multimedia · Computer Science 2025-09-08 Xinkui Lin , Yongxiu Xu , Minghao Tang , Shilong Zhang , Hongbo Xu , Hao Xu , Yubin Wang

We present ReFoRCE, a Text-to-SQL agent that tops the Spider 2.0 leaderboard--a challenging benchmark reflecting complex, real-world Text-to-SQL scenarios. While Text-to-SQL systems enable natural language queries over structured databases,…

Computation and Language · Computer Science 2025-06-05 Minghang Deng , Ashwin Ramachandran , Canwen Xu , Lanxiang Hu , Zhewei Yao , Anupam Datta , Hao Zhang

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…

Computation and Language · Computer Science 2025-01-31 Zhouyu Jiang , Mengshu Sun , Lei Liang , Zhiqiang Zhang

Open Information Extraction (OpenIE) extracts meaningful structured tuples from free-form text. Most previous work on OpenIE considers extracting data from one sentence at a time. We describe NeurON, a system for extracting tuples from…

Computation and Language · Computer Science 2019-04-09 Nikita Bhutani , Yoshihiko Suhara , Wang-Chiew Tan , Alon Halevy , H. V. Jagadish

We study the problem of Query Performance Prediction (QPP) for open-domain multi-hop Question Answering (QA), where the task is to estimate the difficulty of evaluating a multi-hop question over a corpus. Despite the extensive research on…

Computation and Language · Computer Science 2023-08-15 Mohammadreza Samadi , Davood Rafiei

Multi-document summarization (MDS) assumes a set of topic-related documents are provided as input. In practice, this document set is not always available; it would need to be retrieved given an information need, i.e. a question or topic…

Computation and Language · Computer Science 2023-10-26 John Giorgi , Luca Soldaini , Bo Wang , Gary Bader , Kyle Lo , Lucy Lu Wang , Arman Cohan

Retrieval-Augmented Generation (RAG) systems often struggle with imperfect retrieval, as traditional retrievers focus on lexical or semantic similarity rather than logical relevance. To address this, we propose \textbf{HopRAG}, a novel RAG…

Information Retrieval · Computer Science 2025-05-27 Hao Liu , Zhengren Wang , Xi Chen , Zhiyu Li , Feiyu Xiong , Qinhan Yu , Wentao Zhang

We present a study of Tip-of-the-tongue (ToT) retrieval for music, where a searcher is trying to find an existing music entity, but is unable to succeed as they cannot accurately recall important identifying information. ToT information…

Information Retrieval · Computer Science 2023-05-24 Samarth Bhargav , Anne Schuth , Claudia Hauff

Open-domain question answering requires retrieval systems able to cope with the diverse and varied nature of questions, providing accurate answers across a broad spectrum of query types and topics. To deal with such topic heterogeneity…

Information Retrieval · Computer Science 2024-03-21 Pranav Kasela , Gabriella Pasi , Raffaele Perego , Nicola Tonellotto

Interpretable multi-hop reading comprehension (RC) over multiple documents is a challenging problem because it demands reasoning over multiple information sources and explaining the answer prediction by providing supporting evidences. In…

Computation and Language · Computer Science 2020-02-12 Ming Tu , Kevin Huang , Guangtao Wang , Jing Huang , Xiaodong He , Bowen Zhou

Since commonsense information has been recorded significantly less frequently than its existence, language models pre-trained by text generation have difficulty to learn sufficient commonsense knowledge. Several studies have leveraged text…

Computation and Language · Computer Science 2024-06-17 Wanqing Cui , Keping Bi , Jiafeng Guo , Xueqi Cheng

In open question answering (QA), the answer to a question is produced by retrieving and then analyzing documents that might contain answers to the question. Most open QA systems have considered only retrieving information from unstructured…

Computation and Language · Computer Science 2021-02-11 Wenhu Chen , Ming-Wei Chang , Eva Schlinger , William Wang , William W. Cohen

Retrieval-augmented generation (RAG) has been extensively employed to mitigate hallucinations in large language models (LLMs). However, existing methods for multi-hop reasoning tasks often lack global planning, increasing the risk of…

Computation and Language · Computer Science 2025-11-14 Yijie Zhu , Haojie Zhou , Wanting Hong , Tailin Liu , Ning Wang

As machine learning (ML) models are increasingly being deployed in high-stakes applications, policymakers have suggested tighter data protection regulations (e.g., GDPR, CCPA). One key principle is the "right to be forgotten" which gives…

Machine Learning · Computer Science 2023-10-12 Martin Pawelczyk , Tobias Leemann , Asia Biega , Gjergji Kasneci

Document-level relation extraction (DocRE) is a task that focuses on identifying relations between entities within a document. However, existing DocRE models often overlook the correlation between relations and lack a quantitative analysis…

Information Retrieval · Computer Science 2023-10-23 Yusheng Huang , Zhouhan Lin

Large language models (LLMs) have been adopted to perform text-to-SQL tasks, utilizing their in-context learning (ICL) capability to translate natural language questions into structured query language (SQL). However, such a technique faces…

Computation and Language · Computer Science 2025-07-02 Jiawei Shen , Chengcheng Wan , Ruoyi Qiao , Jiazhen Zou , Hang Xu , Yuchen Shao , Yueling Zhang , Weikai Miao , Geguang Pu

Dense retrieval (DR) approaches based on powerful pre-trained language models (PLMs) achieved significant advances and have become a key component for modern open-domain question-answering systems. However, they require large amounts of…

Computation and Language · Computer Science 2022-08-08 Xiaoyu Shen , Svitlana Vakulenko , Marco del Tredici , Gianni Barlacchi , Bill Byrne , Adrià de Gispert

Recent advances in large language models (LLMs) have greatly improved Text-to-SQL performance for single-table queries. But, it remains challenging in multi-table databases due to complex schema and relational operations. Existing methods…

Computation and Language · Computer Science 2025-05-26 Poojah Ganesan , Rajat Aayush Jha , Dan Roth , Vivek Gupta

Multi-hop question answering (QA) often requires sequential retrieval (multi-hop retrieval), where each hop retrieves missing knowledge based on information from previous hops. To facilitate more effective retrieval, we aim to distill…

Computation and Language · Computer Science 2025-03-03 Zehua Xia , Yuyang Wu , Yiyun Xia , Cam-Tu Nguyen