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A multi-hop question answering (QA) dataset aims to test reasoning and inference skills by requiring a model to read multiple paragraphs to answer a given question. However, current datasets do not provide a complete explanation for the…

Computation and Language · Computer Science 2020-11-13 Xanh Ho , Anh-Khoa Duong Nguyen , Saku Sugawara , Akiko Aizawa

Iterative Retrieval-Augmented Generation (iRAG) has emerged as a powerful paradigm for answering complex multi-hop questions by progressively retrieving and reasoning over external documents. However, current systems predominantly operate…

Computer Vision and Pattern Recognition · Computer Science 2026-05-26 Peiyang Liu , Ziqiang Cui , Xi Wang , Di Liang , Wei Ye

Large language models often fail at logical reasoning when semantic heuristics conflict with decisive evidence - a phenomenon we term cognitive traps. To address this fundamental limitation, we introduce the Deliberative Reasoning Network…

Artificial Intelligence · Computer Science 2026-01-22 Anran Xu , Jincheng Wang , Baigen Cai , Tao Wen

Clinical decision-making in radiology increasingly benefits from artificial intelligence (AI), particularly through large language models (LLMs). However, traditional retrieval-augmented generation (RAG) systems for radiology question…

Entity matching is a fundamental task in data cleaning and data integration. With the rapid adoption of large language models (LLMs), recent studies have explored zero-shot and few-shot prompting to improve entity matching accuracy.…

Databases · Computer Science 2025-12-01 Rohan Bopardikar , Jin Wang , Jia Zou

As one popular modeling approach for end-to-end speech recognition, attention-based encoder-decoder models are known to suffer the length bias and corresponding beam problem. Different approaches have been applied in simple beam search to…

Audio and Speech Processing · Electrical Eng. & Systems 2023-10-24 Wei Zhou , Ralf Schlüter , Hermann Ney

Retrieval-Augmented Generation (RAG) has become a widely adopted paradigm for enhancing the reliability of large language models (LLMs). However, RAG systems are sensitive to retrieval strategies that rely on text chunking to construct…

Information Retrieval · Computer Science 2026-03-31 Sun Xu , Tongkai Xu , Baiheng Xie , Li Huang , Qiang Gao , Kunpeng Zhang

Explaining why dense retrievers assign high relevance scores remains challenging because retrieval decisions are made through opaque high-dimensional embeddings. Existing explanations often focus on surface signals, such as lexical matches,…

Artificial Intelligence · Computer Science 2026-05-29 Zhixin Cai , Jun Bai , Yang Liu , Jiaqi Li , Yichi Zhang , Taichuan Li , Zhuofan Chen , Zixia Jia , Zilong Zheng , Wenge Rong

Product search is one of the most popular methods for customers to discover products online. Most existing studies on product search focus on developing effective retrieval models that rank items by their likelihood to be purchased. They,…

Information Retrieval · Computer Science 2019-09-17 Qingyao Ai , Yongfeng Zhang , Keping Bi , W. Bruce Croft

Multi-hop reading comprehension requires the model to explore and connect relevant information from multiple sentences/documents in order to answer the question about the context. To achieve this, we propose an interpretable 3-module system…

Computation and Language · Computer Science 2019-06-13 Yichen Jiang , Nitish Joshi , Yen-Chun Chen , Mohit Bansal

Ranker and retriever are two important components in dense passage retrieval. The retriever typically adopts a dual-encoder model, where queries and documents are separately input into two pre-trained models, and the vectors generated by…

Information Retrieval · Computer Science 2023-12-29 Haifeng Li , Mo Hai , Dong Tang

Existing long-document question answering systems typically process texts as flat sequences or use heuristic chunking, which overlook the discourse structures that naturally guide human comprehension. We present a discourse-aware…

Information Retrieval · Computer Science 2026-05-08 Huiyao Chen , Yi Yang , Yinghui Li , Meishan Zhang , Baotian Hu , Min Zhang

Recent progress in large language models (LLM) found chain-of-thought prompting strategies to improve the reasoning ability of LLMs by encouraging problem solving through multiple steps. Therefore, subsequent research aimed to integrate the…

Computation and Language · Computer Science 2025-02-21 Ting-Ruen Wei , Haowei Liu , Xuyang Wu , Yi Fang

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

In this study, we introduced a new benchmark consisting of a curated dataset and a defined evaluation process to assess the compositional reasoning capabilities of large language models within the chemistry domain. We designed and validated…

Computation and Language · Computer Science 2025-08-07 Mohammad Khodadad , Ali Shiraee Kasmaee , Mahdi Astaraki , Nicholas Sherck , Hamidreza Mahyar , Soheila Samiee

Retrieval-Augmented Generation (RAG) integrates non-parametric knowledge into Large Language Models (LLMs), typically from unstructured texts and structured graphs. While recent progress has advanced text-based RAG to multi-turn reasoning…

Computation and Language · Computer Science 2025-12-11 Yucan Guo , Miao Su , Saiping Guan , Zihao Sun , Xiaolong Jin , Jiafeng Guo , Xueqi Cheng

Reasoning-Intensive Retrieval (RIR) targets retrieval settings where relevance is mediated by latent inferential links between a query and supporting evidence, rather than semantic similarity. Motivated by the emergent reasoning abilities…

Information Retrieval · Computer Science 2026-05-04 Yiyang Wei , Tingyu Song , Siyue Zhang , Yilun Zhao

This paper introduces a new framework for open-domain question answering in which the retriever and the reader iteratively interact with each other. The framework is agnostic to the architecture of the machine reading model, only requiring…

Computation and Language · Computer Science 2019-05-15 Rajarshi Das , Shehzaad Dhuliawala , Manzil Zaheer , Andrew McCallum

Dense retrieval methods typically target unstructured text data represented as flat strings. However, e-commerce catalogs often include structured information across multiple fields, such as brand, title, and description, which contain…

Information Retrieval · Computer Science 2025-02-03 Niklas Freymuth , Dong Liu , Thomas Ricatte , Saab Mansour

Multi-hop question answering (QA) requires systems to iteratively retrieve evidence and reason across multiple hops. While recent RAG and agentic methods report strong results, the underlying retrieval--reasoning \emph{process} is often…

Computation and Language · Computer Science 2026-01-05 Yuelyu Ji , Zhuochun Li , Rui Meng , Daqing He