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Text-based question answering (TBQA) has been studied extensively in recent years. Most existing approaches focus on finding the answer to a question within a single paragraph. However, many difficult questions require multiple supporting…

Computation and Language · Computer Science 2019-06-07 Yunxuan Xiao , Yanru Qu , Lin Qiu , Hao Zhou , Lei Li , Weinan Zhang , Yong Yu

Knowledge Base Question Answering (KBQA) aims to answer natural language questions with the help of an external knowledge base. The core idea is to find the link between the internal knowledge behind questions and known triples of the…

Computation and Language · Computer Science 2022-05-03 Hanyu Zhao , Sha Yuan , Jiahong Leng , Xiang Pan , Guoqiang Wang , Ledell Wu , Jie Tang

Knowledge bases (KBs) are often incomplete and constantly changing in practice. Yet, in many question answering applications coupled with knowledge bases, the sparse nature of KBs is often overlooked. To this end, we propose a case-based…

Existing work on augmenting question answering (QA) models with external knowledge (e.g., knowledge graphs) either struggle to model multi-hop relations efficiently, or lack transparency into the model's prediction rationale. In this paper,…

Computation and Language · Computer Science 2020-09-21 Yanlin Feng , Xinyue Chen , Bill Yuchen Lin , Peifeng Wang , Jun Yan , Xiang Ren

Knowledge Graph Question Answering (KGQA) systems are based on machine learning algorithms, requiring thousands of question-answer pairs as training examples or natural language processing pipelines that need module fine-tuning. In this…

Artificial Intelligence · Computer Science 2022-02-03 Daniel Vollmers , Rricha Jalota , Diego Moussallem , Hardik Topiwala , Axel-Cyrille Ngonga Ngomo , Ricardo Usbeck

Reading comprehension QA tasks have seen a recent surge in popularity, yet most works have focused on fact-finding extractive QA. We instead focus on a more challenging multi-hop generative task (NarrativeQA), which requires the model to…

Computation and Language · Computer Science 2019-06-04 Lisa Bauer , Yicheng Wang , Mohit Bansal

Building training-ready multi-hop question answering (QA) datasets that truly stress a model's retrieval and reasoning abilities remains highly challenging recently. While there have been a few recent evaluation datasets that capture the…

Artificial Intelligence · Computer Science 2025-11-26 Bingsen Qiu , Zijian Liu , Xiao Liu , Bingjie Wang , Feier Zhang , Yixuan Qin , Chunyan Li , Haoshen Yang , Zeren Gao

Graph Retrieval-Augmented Generation (Graph RAG) effectively builds a knowledge graph (KG) to connect disparate facts across a large document corpus. However, this broad-view approach often lacks the deep structured reasoning needed for…

Computation and Language · Computer Science 2025-10-27 Jiaoyang Li , Junhao Ruan , Shengwei Tang , Saihan Chen , Kaiyan Chang , Yuan Ge , Tong Xiao , Jingbo Zhu

Large language models (LLMs) demonstrate remarkable performance on knowledge-intensive tasks, suggesting that real-world knowledge is encoded in their model parameters. However, besides explorations on a few probing tasks in limited…

Computation and Language · Computer Science 2024-03-26 Yuyang Bai , Shangbin Feng , Vidhisha Balachandran , Zhaoxuan Tan , Shiqi Lou , Tianxing He , Yulia Tsvetkov

Large Language Models (LLMs) excel at generating natural language answers, yet their outputs often remain unverifiable and difficult to trace. Knowledge Graphs (KGs) offer a complementary strength by representing entities and their…

Computation and Language · Computer Science 2025-12-05 Alfonso Amayuelas , Joy Sain , Simerjot Kaur , Charese Smiley

Inductive Knowledge Graph Reasoning (KGR) aims to discover facts in open-domain KGs containing unknown entities and relations, which poses a challenge for KGR models in comprehending uncertain KG components. Existing studies have proposed…

Computation and Language · Computer Science 2026-04-08 Xingrui Zhuo , Jiapu Wang , Gongqing Wu , Zhongyuan Wang , Jichen Zhang , Shirui Pan , Xindong Wu

Recent studies in medical question answering (Medical QA) have actively explored the integration of large language models (LLMs) with biomedical knowledge graphs (KGs) to improve factual accuracy. However, most existing approaches still…

Computation and Language · Computer Science 2026-01-15 Chaerin Lee , Sohee Park , Hyunsik Na , Daseon Choi

Knowledge Graphs (KG) act as a great tool for holding distilled information from large natural language text corpora. The problem of natural language querying over knowledge graphs is essential for the human consumption of this information.…

Machine Learning · Computer Science 2021-12-22 Aayushee Gupta , K. M. Annervaz , Ambedkar Dukkipati , Shubhashis Sengupta

Knowledge-based visual question answering (KB-VQA) is a challenging task, which requires the model to leverage external knowledge for comprehending and answering questions grounded in visual content. Recent studies retrieve the knowledge…

Computer Vision and Pattern Recognition · Computer Science 2024-03-18 Dongze Hao , Jian Jia , Longteng Guo , Qunbo Wang , Te Yang , Yan Li , Yanhua Cheng , Bo Wang , Quan Chen , Han Li , Jing Liu

Recent advances in large language models (LLMs) have made automated multiple-choice question (MCQ) generation increasingly feasible; however, reliably producing items that satisfy controlled cognitive demands remains a challenge. To address…

Computation and Language · Computer Science 2026-02-04 Yu Tian , Linh Huynh , Katerina Christhilf , Shubham Chakraborty , Micah Watanabe , Tracy Arner , Danielle McNamara

Question answering (QA) aims to understand questions and find appropriate answers. In real-world QA systems, Frequently Asked Question (FAQ) based QA is usually a practical and effective solution, especially for some complicated questions…

Computation and Language · Computer Science 2020-10-23 Ruobing Xie , Yanan Lu , Fen Lin , Leyu Lin

Question Answering (QA) systems provide easy access to the vast amount of knowledge without having to know the underlying complex structure of the knowledge. The research community has provided ad hoc solutions to the key QA tasks,…

Computation and Language · Computer Science 2019-06-11 Somayeh Asadifar , Mohsen Kahani , Saeedeh Shekarpour

Question answering (QA) over tables and text has gained much popularity over the years. Multi-hop table-text QA requires multiple hops between the table and text, making it a challenging QA task. Although several works have attempted to…

Computation and Language · Computer Science 2024-10-02 Jayetri Bardhan , Bushi Xiao , Daisy Zhe Wang

Large Language Models (LLMs) excel at intuitive, implicit reasoning. Guiding LLMs to construct thought chains can enhance their deliberate reasoning abilities, but also faces challenges such as hallucination. Knowledge Graphs (KGs) can…

Computation and Language · Computer Science 2025-03-07 Guangyi Liu , Yongqi Zhang , Yong Li , Quanming Yao

The generation of questions and answers (QA) from knowledge graphs (KG) plays a crucial role in the development and testing of educational platforms, dissemination tools, and large language models (LLM). However, existing approaches often…

Computation and Language · Computer Science 2025-11-17 Sania Nayab , Marco Simoni , Giulio Rossolini , Andrea Saracino