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Knowledge base question answering (KBQA) aims to answer a question over a knowledge base (KB). Early studies mainly focused on answering simple questions over KBs and achieved great success. However, their performance on complex questions…

Computation and Language · Computer Science 2022-11-09 Yunshi Lan , Gaole He , Jinhao Jiang , Jing Jiang , Wayne Xin Zhao , Ji-Rong Wen

The intelligent question answering (IQA) system can accurately capture users' search intention by understanding the natural language questions, searching relevant content efficiently from a massive knowledge-base, and returning the answer…

Artificial Intelligence · Computer Science 2021-06-17 Yachen Tang , Haiyun Han , Xianmao Yu , Jing Zhao , Guangyi Liu , Longfei Wei

We present LinkQ, a system that leverages a large language model (LLM) to facilitate knowledge graph (KG) query construction through natural language question-answering. Traditional approaches often require detailed knowledge of a graph…

Computation and Language · Computer Science 2025-02-11 Harry Li , Gabriel Appleby , Ashley Suh

Knowledge graph question answering (KGQA) based on information retrieval aims to answer a question by retrieving answer from a large-scale knowledge graph. Most existing methods first roughly retrieve the knowledge subgraphs (KSG) that may…

Computation and Language · Computer Science 2022-10-06 Hanning Gao , Lingfei Wu , Po Hu , Zhihua Wei , Fangli Xu , Bo Long

Question answering over knowledge bases (KBs) aims to answer natural language questions with factual information such as entities and relations in KBs. Previous methods either generate logical forms that can be executed over KBs to obtain…

Computation and Language · Computer Science 2023-04-18 Donghan Yu , Sheng Zhang , Patrick Ng , Henghui Zhu , Alexander Hanbo Li , Jun Wang , Yiqun Hu , William Wang , Zhiguo Wang , Bing Xiang

Attributed Question Answering (AQA) has attracted wide attention, but there are still several limitations in evaluating the attributions, including lacking fine-grained attribution categories, relying on manual annotations, and failing to…

Computation and Language · Computer Science 2025-07-02 Nan Hu , Jiaoyan Chen , Yike Wu , Guilin Qi , Hongru Wang , Sheng Bi , Yongrui Chen , Tongtong Wu , Jeff Z. Pan

Recently, there has been an increase in the number of knowledge graphs that can be only queried by experts. However, describing questions using structured queries is not straightforward for non-expert users who need to have sufficient…

Computation and Language · Computer Science 2021-05-04 Abdelghny Orogat , Isabelle Liu , Ahmed El-Roby

Knowledge Base Question Answering (KBQA) has been a long-standing field to answer questions based on knowledge bases. Recently, the evolving dynamics of knowledge have attracted a growing interest in Temporal Knowledge Graph Question…

Computation and Language · Computer Science 2026-01-15 Miao Su , Zixuan Li , Zhuo Chen , Long Bai , Xiaolong Jin , Jiafeng Guo

Given an image and an associated textual question, the purpose of Knowledge-Based Visual Question Answering (KB-VQA) is to provide a correct answer to the question with the aid of external knowledge bases. Prior KB-VQA models are usually…

Machine Learning · Computer Science 2023-10-13 Jingru Gan , Xinzhe Han , Shuhui Wang , Qingming Huang

Large Language Models (LLMs) and Knowledge Graphs (KGs) offer a promising approach to robust and explainable Question Answering (QA). While LLMs excel at natural language understanding, they suffer from knowledge gaps and hallucinations.…

Machine Learning · Computer Science 2025-04-15 Jasper Linders , Jakub M. Tomczak

Question answering systems are the latest evolution in information retrieval technology, designed to accept complex queries in natural language and provide accurate answers using both unstructured and structured knowledge sources. Knowledge…

Information Retrieval · Computer Science 2025-01-29 Arash Ghafouri , Mahdi Firouzmandi , Hasan Naderi

Knowledge base question answering (KBQA) is a challenging task that aims to retrieve correct answers from large-scale knowledge bases. Existing attempts primarily focus on entity representation and final answer reasoning, which results in…

Computation and Language · Computer Science 2023-05-26 Yong Cao , Xianzhi Li , Huiwen Liu , Wen Dai , Shuai Chen , Bin Wang , Min Chen , Daniel Hershcovich

Fact-based Visual Question Answering (FVQA), a challenging variant of VQA, requires a QA-system to include facts from a diverse knowledge graph (KG) in its reasoning process to produce an answer. Large KGs, especially common-sense KGs, are…

Computation and Language · Computer Science 2021-06-22 Kiran Ramnath , Mark Hasegawa-Johnson

Answering natural language questions on knowledge graphs (KGQA) remains a great challenge in terms of understanding complex questions via multi-hop reasoning. Previous efforts usually exploit large-scale entity-related text corpora or…

Computation and Language · Computer Science 2022-09-05 Zile Qiao , Wei Ye , Tong Zhang , Tong Mo , Weiping Li , Shikun Zhang

Text-based Question Answering (QA) is a challenging task which aims at finding short concrete answers for users' questions. This line of research has been widely studied with information retrieval techniques and has received increasing…

Information Retrieval · Computer Science 2020-05-28 Zahra Abbasiantaeb , Saeedeh Momtazi

As question answering (QA) systems advance alongside the rapid evolution of foundation models, the need for robust, adaptable, and large-scale evaluation benchmarks becomes increasingly critical. Traditional QA benchmarks are often static…

Computation and Language · Computer Science 2025-03-10 Preetam Prabhu Srikar Dammu , Himanshu Naidu , Chirag Shah

Answering questions related to the legal domain is a complex task, primarily due to the intricate nature and diverse range of legal document systems. Providing an accurate answer to a legal query typically necessitates specialized knowledge…

Computation and Language · Computer Science 2023-09-18 Abdelrahman Abdallah , Bhawna Piryani , Adam Jatowt

Question answering (QA) systems provide a way of querying the information available in various formats including, but not limited to, unstructured and structured data in natural languages. It constitutes a considerable part of…

Computation and Language · Computer Science 2021-06-04 Munazza Zaib , Wei Emma Zhang , Quan Z. Sheng , Adnan Mahmood , Yang Zhang

With the rapid growth of knowledge bases (KBs) on the web, how to take full advantage of them becomes increasingly important. Knowledge base-based question answering (KB-QA) is one of the most promising approaches to access the substantial…

Information Retrieval · Computer Science 2016-06-06 Yuanzhe Zhang , Kang Liu , Shizhu He , Guoliang Ji , Zhanyi Liu , Hua Wu , Jun Zhao

Despite their competitive performance on knowledge-intensive tasks, large language models (LLMs) still have limitations in memorizing all world knowledge especially long tail knowledge. In this paper, we study the KG-augmented language…

Computation and Language · Computer Science 2023-09-22 Yike Wu , Nan Hu , Sheng Bi , Guilin Qi , Jie Ren , Anhuan Xie , Wei Song