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Open-domain question answering (OpenQA) represents a cornerstone in natural language processing (NLP), primarily focused on extracting answers from unstructured textual data. With the rapid advancements in Large Language Models (LLMs),…

Computation and Language · Computer Science 2025-10-28 Tingjia Shen , Hao Wang , Chuan Qin , Ruijun Sun , Yang Song , Defu Lian , Hengshu Zhu , Enhong Chen

Multi-entity question answering (MEQA) represents significant challenges for large language models (LLM) and retrieval-augmented generation (RAG) systems, which frequently struggle to consolidate scattered information across diverse…

Computation and Language · Computer Science 2025-09-25 Teng Lin , Yuyu Luo , Honglin Zhang , Jicheng Zhang , Chunlin Liu , Kaishun Wu , Nan Tang

Large Language Models (LLMs) have been integrated into recommender systems to enhance user behavior comprehension. The Retrieval Augmented Generation (RAG) technique is further incorporated into these systems to retrieve more relevant items…

Information Retrieval · Computer Science 2025-03-27 Sichun Luo , Jian Xu , Xiaojie Zhang , Linrong Wang , Sicong Liu , Hanxu Hou , Linqi Song

Multimodal Large Language Models (MLLMs) possess intrinsic reasoning and world-knowledge capabilities, yet adapting them for dense retrieval remains challenging. Existing approaches rely on invasive parameter updates, such as full…

Computer Vision and Pattern Recognition · Computer Science 2026-05-12 Haoran Lou , Ziyan Liu , Chunxiao Fan , Yuexin Wu , Yue Ming , Hao Wu , Kai Zuo , Yibo Chen , Xu Tang

Textbook question answering (TQA) is a challenging task in artificial intelligence due to the complex nature of context needed to answer complex questions. Although previous research has improved the task, there are still some limitations…

Computation and Language · Computer Science 2025-01-23 Hessa Abdulrahman Alawwad , Areej Alhothali , Usman Naseem , Ali Alkhathlan , Amani Jamal

Wind energy project assessments present significant challenges for decision-makers, who must navigate and synthesize hundreds of pages of environmental and scientific documentation. These documents often span different regions and project…

Computation and Language · Computer Science 2025-06-10 Rounak Meyur , Hung Phan , Sridevi Wagle , Jan Strube , Mahantesh Halappanavar , Sameera Horawalavithana , Anurag Acharya , Sai Munikoti

Retrieval-augmented generation (RAG) systems combine large language models (LLMs) with external knowledge retrieval, making them highly effective for knowledge-intensive tasks. A crucial but often under-explored component of these systems…

Computation and Language · Computer Science 2025-05-19 Jiashuo Sun , Xianrui Zhong , Sizhe Zhou , Jiawei Han

Process reward models (PRMs) enhance complex reasoning in large language models (LLMs) by evaluating candidate solutions step-by-step and selecting answers based on aggregated step scores. While effective in domains such as mathematics,…

Computation and Language · Computer Science 2026-01-26 Lei Tang , Wei Zhou , Mohsen Mesgar

Robust deployment of large multimodal models (LMMs) in real-world scenarios requires access to external knowledge sources, given the complexity and dynamic nature of real-world information. Existing approaches such as retrieval-augmented…

Computer Vision and Pattern Recognition · Computer Science 2025-06-26 Jinming Wu , Zihao Deng , Wei Li , Yiding Liu , Bo You , Bo Li , Zejun Ma , Ziwei Liu

While language Models store a massive amount of world knowledge implicitly in their parameters, even very large models often fail to encode information about rare entities and events, while incurring huge computational costs. Recently,…

Computation and Language · Computer Science 2022-10-21 Wenhu Chen , Hexiang Hu , Xi Chen , Pat Verga , William W. Cohen

Language model (LM) re-rankers are used to refine retrieval results for retrieval-augmented generation (RAG). They are more expensive than lexical matching methods like BM25 but assumed to better process semantic information and the…

Computation and Language · Computer Science 2025-06-25 Lovisa Hagström , Ercong Nie , Ruben Halifa , Helmut Schmid , Richard Johansson , Alexander Junge

We propose DailyQA, an automatically updated dynamic dataset that updates questions weekly and contains answers to questions on any given date. DailyQA utilizes daily updates from Wikipedia revision logs to implement a fully automated…

Information Retrieval · Computer Science 2025-05-26 Jiehan Cheng , Zhicheng Dou

Multimodal Retrieval Augmented Generation (mRAG) plays an important role in mitigating the "hallucination" issue inherent in multimodal large language models (MLLMs). Although promising, existing heuristic mRAGs typically predefined fixed…

Computation and Language · Computer Science 2025-05-27 Yangning Li , Yinghui Li , Xinyu Wang , Yong Jiang , Zhen Zhang , Xinran Zheng , Hui Wang , Hai-Tao Zheng , Philip S. Yu , Fei Huang , Jingren Zhou

This resource paper addresses the challenge of evaluating Information Retrieval (IR) systems in the era of autoregressive Large Language Models (LLMs). Traditional methods relying on passage-level judgments are no longer effective due to…

Information Retrieval · Computer Science 2024-05-24 Laura Dietz

Retrieval-Augmented Generation (RAG) has been shown to enhance the factual accuracy of Large Language Models (LLMs), but existing methods often suffer from limited reasoning capabilities in effectively using the retrieved evidence,…

Computation and Language · Computer Science 2024-10-03 Shayekh Bin Islam , Md Asib Rahman , K S M Tozammel Hossain , Enamul Hoque , Shafiq Joty , Md Rizwan Parvez

Retrieval-Augmented Generation (RAG) has emerged as a standard framework for knowledge-intensive NLP tasks, combining large language models (LLMs) with document retrieval from external corpora. Despite its widespread use, most RAG pipelines…

Information Retrieval · Computer Science 2025-08-26 Mandeep Rathee , V Venktesh , Sean MacAvaney , Avishek Anand

Video Question Answering (VideoQA) has been significantly advanced from the scaling of recent Large Language Models (LLMs). The key idea is to convert the visual information into the language feature space so that the capacity of LLMs can…

Computer Vision and Pattern Recognition · Computer Science 2023-06-21 Junting Pan , Ziyi Lin , Yuying Ge , Xiatian Zhu , Renrui Zhang , Yi Wang , Yu Qiao , Hongsheng Li

Retrieval-augmented generation (RAG) is a common way to ground language models in external documents and up-to-date information. Classical retrieval systems relied on lexical methods such as BM25, which rank documents by term overlap with…

Computation and Language · Computer Science 2026-03-05 Martin Asenov , Kenza Benkirane , Dan Goldwater , Aneiss Ghodsi

Retrieval-Augmented Generation (RAG) enhances Large Language Models (LLMs) by integrating them with an external knowledge base to improve the answer relevance and accuracy. In real-world scenarios, beyond pure text, a substantial amount of…

Computation and Language · Computer Science 2025-10-07 Jiaru Zou , Dongqi Fu , Sirui Chen , Xinrui He , Zihao Li , Yada Zhu , Jiawei Han , Jingrui He

Financial documents--such as 10-Ks, 10-Qs, and investor presentations--span hundreds of pages and combine diverse modalities, including dense narrative text, structured tables, and complex figures. Answering questions over such content…

Computation and Language · Computer Science 2026-04-13 Chinmay Gondhalekar , Urjitkumar Patel , Fang-Chun Yeh