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Multi-hop question answering (QA) is a challenging task requiring QA systems to perform complex reasoning over multiple documents and provide supporting facts together with the exact answer. Existing works tend to utilize graph-based…

Computation and Language · Computer Science 2022-05-25 Xin-Yi Li , Wei-Jun Lei , Yu-Bin Yang

Compositional reasoning tasks like multi-hop question answering, require making latent decisions to get the final answer, given a question. However, crowdsourced datasets often capture only a slice of the underlying task distribution, which…

Computation and Language · Computer Science 2021-04-20 Dheeru Dua , Cicero Nogueira dos Santos , Patrick Ng , Ben Athiwaratkun , Bing Xiang , Matt Gardner , Sameer Singh

Multi-hop question answering (QA) requires models to retrieve and reason over multiple pieces of evidence. While Retrieval-Augmented Generation (RAG) has made progress in this area, existing methods often suffer from two key limitations:…

Computation and Language · Computer Science 2025-04-01 Yuelyu Ji , Rui Meng , Zhuochun Li , Daqing He

This study presents a question-based knowledge encoding approach that improves retrieval-augmented generation (RAG) systems without requiring fine-tuning or traditional chunking. We encode textual content using generated questions that span…

The ability to generate natural-language questions with controlled complexity levels is highly desirable as it further expands the applicability of question generation. In this paper, we propose an end-to-end neural complexity-controllable…

Computation and Language · Computer Science 2021-10-14 Sheng Bi , Xiya Cheng , Yuan-Fang Li , Lizhen Qu , Shirong Shen , Guilin Qi , Lu Pan , Yinlin Jiang

Multi-Hop Question Answering (MHQA) tasks present a significant challenge for large language models (LLMs) due to the intensive knowledge required. Current solutions, like Retrieval-Augmented Generation, typically retrieve potential…

Computation and Language · Computer Science 2024-09-17 Zhengliang Shi , Weiwei Sun , Shen Gao , Pengjie Ren , Zhumin Chen , Zhaochun Ren

Multi-hop reading comprehension (RC) questions are challenging because they require reading and reasoning over multiple paragraphs. We argue that it can be difficult to construct large multi-hop RC datasets. For example, even highly…

Computation and Language · Computer Science 2019-06-10 Sewon Min , Eric Wallace , Sameer Singh , Matt Gardner , Hannaneh Hajishirzi , Luke Zettlemoyer

Although large language models (LLMs) have demonstrated remarkable reasoning capabilities, they still face challenges in knowledge-intensive multi-hop reasoning. Recent work explores iterative retrieval to address complex problems. However,…

Computation and Language · Computer Science 2025-05-27 Zheng Chu , Huiming Fan , Jingchang Chen , Qianyu Wang , Mingda Yang , Jiafeng Liang , Zhongjie Wang , Hao Li , Guo Tang , Ming Liu , Bing Qin

Generating follow-up questions on the fly could significantly improve conversational survey quality and user experiences by enabling a more dynamic and personalized survey structure. In this paper, we proposed a novel task for…

Computation and Language · Computer Science 2023-10-16 Yubin Ge , Ziang Xiao , Jana Diesner , Heng Ji , Karrie Karahalios , Hari Sundaram

Deep-learning models for language generation tasks tend to produce repetitive output. Various methods have been proposed to encourage lexical diversity during decoding, but this often comes at a cost to the perceived fluency and adequacy of…

Computation and Language · Computer Science 2021-09-22 Giulio Zhou , Gerasimos Lampouras

Retrieval-Augmented Generation (RAG) systems are widely adopted in knowledge-intensive NLP tasks, but current evaluations often overlook the structural complexity and multi-step reasoning required in real-world scenarios. These benchmarks…

Computation and Language · Computer Science 2025-12-16 Jeongsoo Lee , Daeyong Kwon , Kyohoon Jin

Multimodal Multi-hop question answering requires integrating information from diverse sources, such as images and texts, to derive answers. Existing methods typically rely on sequential retrieval and reasoning, where each step builds on the…

Artificial Intelligence · Computer Science 2025-09-22 Yiheng Hu , Xiaoyang Wang , Qing Liu , Xiwei Xu , Qian Fu , Wenjie Zhang , Liming Zhu

This paper addresses the problem of generating questions from a given context and an answer, specifically focusing on questions that require multi-hop reasoning across an extended context. Previous studies have suggested that key phrase…

Computation and Language · Computer Science 2023-10-24 Zehua Xia , Qi Gou , Bowen Yu , Haiyang Yu , Fei Huang , Yongbin Li , Cam-Tu Nguyen

Frequently Asked Questions (FAQs) refer to the most common inquiries about specific content. They serve as content comprehension aids by simplifying topics and enhancing understanding through succinct presentation of information. In this…

Computation and Language · Computer Science 2024-11-20 Sahil Kale , Gautam Khaire , Jay Patankar

Socratic questioning is an educational method that allows students to discover answers to complex problems by asking them a series of thoughtful questions. Generation of didactically sound questions is challenging, requiring understanding…

Computation and Language · Computer Science 2022-11-24 Kumar Shridhar , Jakub Macina , Mennatallah El-Assady , Tanmay Sinha , Manu Kapur , Mrinmaya Sachan

Generating multiple-choice questions (MCQs) with difficulty estimation remains challenging in automated MCQ-generation systems used in adaptive, AI-assisted education. This study proposes a novel methodology for generating MCQs with…

Computation and Language · Computer Science 2026-04-14 Mehmet Can Şakiroğlu , H. Altay Güvenir , Kamer Kaya

Fusion-in-decoder (Fid) (Izacard and Grave, 2020) is a generative question answering (QA) model that leverages passage retrieval with a pre-trained transformer and pushed the state of the art on single-hop QA. However, the complexity of…

Computation and Language · Computer Science 2022-05-20 Semih Yavuz , Kazuma Hashimoto , Yingbo Zhou , Nitish Shirish Keskar , Caiming Xiong

Text generation system has made massive promising progress contributed by deep learning techniques and has been widely applied in our life. However, existing end-to-end neural models suffer from the problem of tending to generate…

Artificial Intelligence · Computer Science 2020-03-03 Hao Wang , Bin Guo , Wei Wu , Zhiwen Yu

Previous work finds that recent long-context language models fail to make equal use of information in the middle of their inputs, preferring pieces of information located at the tail ends which creates an undue bias in situations where we…

Computation and Language · Computer Science 2024-12-16 George Arthur Baker , Ankush Raut , Sagi Shaier , Lawrence E Hunter , Katharina von der Wense

Large language models (LLMs) have shown an impressive ability to perform tasks believed to require thought processes. When the model does not document an explicit thought process, it becomes difficult to understand the processes occurring…

Computation and Language · Computer Science 2024-06-21 Yuval Shalev , Amir Feder , Ariel Goldstein
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