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Knowledge graph simple question answering (KGSQA), in its standard form, does not take into account that human-curated question answering training data only cover a small subset of the relations that exist in a Knowledge Graph (KG), or even…

Computation and Language · Computer Science 2020-05-26 Georgios Sidiropoulos , Nikos Voskarides , Evangelos Kanoulas

Efficiently finding doctors and locations is an important search problem for patients in the healthcare domain, for which traditional information retrieval methods tend not to work optimally. In the last ten years, knowledge graphs (KGs)…

Artificial Intelligence · Computer Science 2023-10-10 Mayank Kejriwal , Hamid Haidarian , Min-Hsueh Chiu , Andy Xiang , Deep Shrestha , Faizan Javed

Knowledge Graphs (KG) provide us with a structured, flexible, transparent, cross-system, and collaborative way of organizing our knowledge and data across various domains in society and industrial as well as scientific disciplines. KGs…

Knowledge Graph (KG)-to-Text Generation has seen recent improvements in generating fluent and informative sentences which describe a given KG. As KGs are widespread across multiple domains and contain important entity-relation information,…

Computation and Language · Computer Science 2023-10-26 Anthony Colas , Haodi Ma , Xuanli He , Yang Bai , Daisy Zhe Wang

Knowledge base question answering (KBQA) aims to answer user questions in natural language using rich human knowledge stored in large KBs. As current KBQA methods struggle with unseen knowledge base elements at test time,we introduce…

Computation and Language · Computer Science 2025-09-11 Shengxiang Gao , Jey Han Lau , Jianzhong Qi

In the swiftly advancing realm of communication technologies, Semantic Communication (SemCom), which emphasizes knowledge understanding and processing, has emerged as a hot topic. By integrating artificial intelligence technologies, SemCom…

Computation and Language · Computer Science 2024-02-07 Fei Ni , Bingyan Wang , Rongpeng Li , Zhifeng Zhao , Honggang Zhang

Prior work on Data-To-Text Generation, the task of converting knowledge graph (KG) triples into natural text, focused on domain-specific benchmark datasets. In this paper, however, we verbalize the entire English Wikidata KG, and discuss…

Computation and Language · Computer Science 2021-03-16 Oshin Agarwal , Heming Ge , Siamak Shakeri , Rami Al-Rfou

Knowledge graphs (KGs) are a powerful approach for integrating heterogeneous data and making inferences in biology and many other domains, but a coherent solution for constructing, exchanging, and facilitating the downstream use of…

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

Data-driven systems need to be evaluated to establish trust in the scientific approach and its applicability. In particular, this is true for Knowledge Graph (KG) Question Answering (QA), where complex data structures are made accessible…

Computation and Language · Computer Science 2022-01-21 Aleksandr Perevalov , Xi Yan , Liubov Kovriguina , Longquan Jiang , Andreas Both , Ricardo Usbeck

Retrieval-Augmented Generation (RAG) enhances language models by grounding responses in external information, yet explainability remains a critical challenge, particularly when retrieval relies on unstructured text. Knowledge graphs (KGs)…

Machine Learning · Computer Science 2025-07-14 Georgios Balanos , Evangelos Chasanis , Konstantinos Skianis , Evaggelia Pitoura

In today's data-driven world, the ability to extract meaningful information from data is becoming essential for businesses, organizations and researchers alike. For that purpose, a wide range of tools and systems exist addressing…

Machine Learning · Computer Science 2026-03-24 Gerard Pons , Besim Bilalli , Anna Queralt

The rapid evolution of communication technologies has led to an explosion of standards, rendering traditional expert-dependent consultation methods inefficient and slow. To address this challenge, we propose \textbf{KG2QA}, a question…

Computation and Language · Computer Science 2025-10-16 Zhongze Luo , Weixuan Wan , Tianya Zhang , Dan Wang , Xiaoying Tang

Knowledge graph construction (KGC) from (semi-)structured data is challenging, and facilitating user involvement is an issue frequently brought up within this community. We cannot deny the progress we have made with respect to (declarative)…

Human-Computer Interaction · Computer Science 2025-05-14 Ademar Crotti Junior , Christophe Debruyne

As the demands for large-scale information processing have grown, knowledge graph-based approaches have gained prominence for representing general and domain knowledge. The development of such general representations is essential,…

Computation and Language · Computer Science 2022-06-22 Aman Kumar , Akshay G Bharadwaj , Binil Starly , Collin Lynch

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 for knowledge graph (KGQA), answer factoid questions based on the data in the knowledge graph. KGQA systems are complex because the system has to understand the relations and entities in the knowledge-seeking…

Computation and Language · Computer Science 2025-01-30 Saloni Potdar , Daniel Lee , Omar Attia , Varun Embar , De Meng , Ramesh Balaji , Chloe Seivwright , Eric Choi , Mina H. Farid , Yiwen Sun , Yunyao Li

Ontology-based knowledge graph (KG) construction is a core technology that enables multidimensional understanding and advanced reasoning over domain knowledge. Industrial standards, in particular, contain extensive technical information and…

Information Retrieval · Computer Science 2025-12-23 Jiin Park , Hyuna Jeon , Yoonseo Lee , Jisu Hong , Misuk Kim

Knowledge graphs (KGs) have proven to be effective for high-quality recommendation, where the connectivities between users and items provide rich and complementary information to user-item interactions. Most existing methods, however, are…

Information Retrieval · Computer Science 2021-09-16 Xiao Sha , Zhu Sun , Jie Zhang

Virtually every sector of society is experiencing a dramatic growth in the volume of unstructured textual data that is generated and published, from news and social media online interactions, through open access scholarly communications and…

Computation and Language · Computer Science 2026-03-30 Vanni Zavarella