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Related papers: Uncertainty-Aware Dynamic Knowledge Graphs for Rel…

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Knowledge graph-based dialogue systems are capable of generating more informative responses and can implement sophisticated reasoning mechanisms. However, these models do not take into account the sparseness and incompleteness of knowledge…

Computation and Language · Computer Science 2020-04-21 Hongcai Xu , Junpeng Bao , Gaojie Zhang

The growing complexity and volume of climate science literature make it increasingly difficult for researchers to find relevant information across models, datasets, regions, and variables. This paper introduces a domain-specific Knowledge…

Computation and Language · Computer Science 2025-09-15 Mustapha Adamu , Qi Zhang , Huitong Pan , Longin Jan Latecki , Eduard C. Dragut

Recent works integrating Knowledge Graphs (KGs) have shown promising improvements in enhancing the reasoning capabilities of Large Language Models (LLMs). However, existing benchmarks primarily focus on closed-ended tasks, leaving a gap in…

Computation and Language · Computer Science 2025-05-23 Yuan Sui , Yufei He , Zifeng Ding , Bryan Hooi

Knowledge retrieval and reasoning are two key stages in multi-hop question answering (QA) at web scale. Existing approaches suffer from low confidence when retrieving evidence facts to fill the knowledge gap and lack transparent reasoning…

Computation and Language · Computer Science 2021-05-26 Weiwen Xu , Huihui Zhang , Deng Cai , Wai Lam

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

Complex query answering (CQA) on knowledge graphs (KGs) is gaining momentum as a challenging reasoning task. In this paper, we show that the current benchmarks for CQA might not be as complex as we think, as the way they are built distorts…

Machine Learning · Computer Science 2025-07-04 Cosimo Gregucci , Bo Xiong , Daniel Hernandez , Lorenzo Loconte , Pasquale Minervini , Steffen Staab , Antonio Vergari

Knowledge Graph (KG) is a graph based data structure to represent facts of the world where nodes represent real world entities or abstract concept and edges represent relation between the entities. Graph as representation for knowledge has…

Social and Information Networks · Computer Science 2024-04-16 Manita Pote

Large Language Models (LLMs) often struggle with producing factually consistent answers due to limitations in their parametric memory. Retrieval-Augmented Generation (RAG) paradigms mitigate this issue by incorporating external knowledge at…

Computation and Language · Computer Science 2026-05-05 Shanglin Wu , Lihui Liu , Jinho D. Choi , Kai Shu

Knowledge Graphs (KGs) are a powerful representation of linked data, offering flexibility, semantic richness, and support for knowledge enrichment and reasoning. They help data owners organize and exploit heterogeneous data to provide…

Cryptography and Security · Computer Science 2026-05-20 Yasmine Hayder

Question answering over temporal knowledge graphs (TKGQA) has recently found increasing interest. TKGQA requires temporal reasoning techniques to extract the relevant information from temporal knowledge bases. The only existing TKGQA…

Artificial Intelligence · Computer Science 2023-07-21 Zifeng Ding , Zongyue Li , Ruoxia Qi , Jingpei Wu , Bailan He , Yunpu Ma , Zhao Meng , Shuo Chen , Ruotong Liao , Zhen Han , Volker Tresp

Knowledge Graphs (KGs) have shown to be very important for applications such as personal assistants, question-answering systems, and search engines. Therefore, it is crucial to ensure their high quality. However, KGs inevitably contain…

Databases · Computer Science 2022-08-18 Elwin Huaman , Dieter Fensel

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

Knowledge graph question answering (KGQA) involves answering natural language questions by leveraging structured information stored in a knowledge graph. Typically, KGQA initially retrieve a targeted subgraph from a large-scale knowledge…

Computation and Language · Computer Science 2024-10-03 Yu Zhang , Kehai Chen , Xuefeng Bai , zhao kang , Quanjiang Guo , Min Zhang

Knowledge Graph Question Answering (KGQA) involves retrieving facts from a Knowledge Graph (KG) using natural language queries. A KG is a curated set of facts consisting of entities linked by relations. Certain facts include also temporal…

Neural networks (NNs) are currently changing the computational paradigm on how to combine data with mathematical laws in physics and engineering in a profound way, tackling challenging inverse and ill-posed problems not solvable with…

Machine Learning · Computer Science 2023-02-08 Apostolos F Psaros , Xuhui Meng , Zongren Zou , Ling Guo , George Em Karniadakis

Knowledge graphs (KGs), which could provide essential relational information between entities, have been widely utilized in various knowledge-driven applications. Since the overall human knowledge is innumerable that still grows explosively…

Computation and Language · Computer Science 2018-02-19 Ruobing Xie , Zhiyuan Liu , Fen Lin , Leyu Lin

Knowledge-based visual question answering (VQA) is a vision-language task that requires an agent to correctly answer image-related questions using knowledge that is not presented in the given image. It is not only a more challenging task…

Computer Vision and Pattern Recognition · Computer Science 2022-03-08 Mingxiao Li , Marie-Francine Moens

With knowledge graphs (KGs) at the center of numerous applications such as recommender systems and question answering, the need for generalized pipelines to construct and continuously update such KGs is increasing. While the individual…

Artificial Intelligence · Computer Science 2024-09-05 Marvin Hofer , Daniel Obraczka , Alieh Saeedi , Hanna Köpcke , Erhard Rahm

While conversing with chatbots, humans typically tend to ask many questions, a significant portion of which can be answered by referring to large-scale knowledge graphs (KG). While Question Answering (QA) and dialog systems have been…

Computation and Language · Computer Science 2018-10-05 Amrita Saha , Vardaan Pahuja , Mitesh M. Khapra , Karthik Sankaranarayanan , Sarath Chandar

The study of machine learning-based logical query answering enables reasoning with large-scale and incomplete knowledge graphs. This paper advances this area of research by addressing the uncertainty inherent in knowledge. While the…

Artificial Intelligence · Computer Science 2025-05-21 Weizhi Fei , Zihao Wang , Hang Yin , Yang Duan , Yangqiu Song
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