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Related papers: OntoLogX: Ontology-Guided Knowledge Graph Extracti…

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Cyber Threat Intelligence (CTI) parsing aims to extract key threat information from massive data, transform it into actionable intelligence, enhance threat detection and defense efficiency, including attack graph construction, intelligence…

Cryptography and Security · Computer Science 2025-06-23 Yongheng Zhang , Xinyun Zhao , Yunshan Ma , Haokai Ma , Yingxiao Guan , Guozheng Yang , Yuliang Lu , Xiang Wang

Organizing a large-scale knowledge graph into a typed property graph requires structural decisions -- which entities become nodes, which properties become edges, and what schema governs these choices. Existing approaches embed these…

Artificial Intelligence · Computer Science 2026-04-06 Yitao Li , Zhanlin Liu , Anuranjan Pandey , Muni Srikanth

The conventional process of building Ontologies and Knowledge Graphs (KGs) heavily relies on human domain experts to define entities and relationship types, establish hierarchies, maintain relevance to the domain, fill the ABox (or populate…

Computation and Language · Computer Science 2024-03-14 Vamsi Krishna Kommineni , Birgitta König-Ries , Sheeba Samuel

Biomedical ontologies, which comprehensively define concepts and relations for biomedical entities, are crucial for structuring and formalizing domain-specific information representations. Biomedical code mapping identifies similarity or…

Information Retrieval · Computer Science 2025-02-27 Hui Feng , Yuntzu Yin , Emiliano Reynares , Jay Nanavati

We propose an ontology-grounded approach to Knowledge Graph (KG) construction using Large Language Models (LLMs) on a knowledge base. An ontology is authored by generating Competency Questions (CQ) on knowledge base to discover knowledge…

Artificial Intelligence · Computer Science 2024-12-31 Xiaohan Feng , Xixin Wu , Helen Meng

As generative models become powerful, concerns around transparency, accountability, and copyright violations have intensified. Understanding how specific training data contributes to a model's output is critical. We introduce a framework…

Artificial Intelligence · Computer Science 2025-12-03 Theodoros Aivalis , Iraklis A. Klampanos , Antonis Troumpoukis , Joemon M. Jose

Open-source cyber threat intelligence (OSCTI) has become essential for keeping up with the rapidly changing threat landscape. However, current OSCTI gathering and management solutions mainly focus on structured Indicators of Compromise…

Cryptography and Security · Computer Science 2024-11-01 Peng Gao , Xiaoyuan Liu , Edward Choi , Sibo Ma , Xinyu Yang , Dawn Song

Ontology-based knowledge graphs (KG) are desirable for effective knowledge management and reuse in various decision making scenarios, including design. Creating and populating extensive KG based on specific ontological models can be highly…

Large language models (LLMs) offer new opportunities for constructing knowledge graphs (KGs) from unstructured clinical narratives. However, existing approaches often rely on structured inputs and lack robust validation of factual accuracy…

Artificial Intelligence · Computer Science 2026-01-06 Udiptaman Das , Krishnasai B. Atmakuri , Duy Ho , Chi Lee , Yugyung Lee

The risks posed by AI features are increasing as they are rapidly integrated into software applications. In response, regulations and standards for safe and secure AI have been proposed. In this paper, we present an agentic framework that…

Artificial Intelligence · Computer Science 2026-05-01 Wilder Baldwin , Sepideh Ghanavati

Neuroscience research publications encompass a vast wealth of knowledge. Accurately retrieving existing information and discovering new insights from this extensive literature is essential for advancing the field. However, when knowledge is…

Computation and Language · Computer Science 2025-10-28 Pralaypati Ta , Sriram Venkatesaperumal , Keerthi Ram , Mohanasankar Sivaprakasam

Much of human knowledge in cybersecurity is encapsulated within the ever-growing volume of scientific papers. As this textual data continues to expand, the importance of document organization methods becomes increasingly crucial for…

In applications such as personal assistants, large language models (LLMs) must consider the user's personal information and preferences. However, LLMs lack the inherent ability to learn from user interactions. This paper explores capturing…

Artificial Intelligence · Computer Science 2024-05-24 Tolga Çöplü , Arto Bendiken , Andrii Skomorokhov , Eduard Bateiko , Stephen Cobb

Knowledge graphs (KGs) are crucial for representing and reasoning over structured information, supporting a wide range of applications such as information retrieval, question answering, and decision-making. However, their effectiveness is…

Computation and Language · Computer Science 2024-12-13 Udari Madhushani Sehwag , Kassiani Papasotiriou , Jared Vann , Sumitra Ganesh

Cybersecurity Knowledge Graphs (CKGs) unify diverse Cyber Threat Intelligence (CTI) sources into structured, queryable formats, offering scalable solutions for automating proactive and real-time security responses. Their increasing adoption…

Machine Learning · Computer Science 2026-05-18 Inoussa Mouiche , sherif Saad

Ontologies have been known for their semantic representation of knowledge. ontologies cannot automatically evolve to reflect updates that occur in respective domains. To address this limitation, researchers have called for automatic…

Artificial Intelligence · Computer Science 2022-01-19 Samaa Elnagar , Victoria Yoon , Manoj A. Thomas

To remain aware of the fast-evolving cyber threat landscape, open-source Cyber Threat Intelligence (OSCTI) has received growing attention from the community. Commonly, knowledge about threats is presented in a vast number of OSCTI reports.…

Cryptography and Security · Computer Science 2021-03-02 Peng Gao , Xiaoyuan Liu , Edward Choi , Bhavna Soman , Chinmaya Mishra , Kate Farris , Dawn Song

Question answering (QA) is a core challenge in AI, particularly for complex queries requiring multi-hop reasoning across documents, or symbolic operations like aggregation or exhaustive listing. Retrieval-augmented generation has become the…

Artificial Intelligence · Computer Science 2026-05-29 Lorenzo Loconte , Timothy Hospedales , Cristina Cornelio

Ontologies are useful for automatic machine processing of domain knowledge as they represent it in a structured format. Yet, constructing ontologies requires substantial manual effort. To automate part of this process, large language models…

Machine Learning · Computer Science 2024-11-01 Andy Lo , Albert Q. Jiang , Wenda Li , Mateja Jamnik

Although large language models (LLMs) have achieved significant success in various tasks, they often struggle with hallucination problems, especially in scenarios requiring deep and responsible reasoning. These issues could be partially…

Computation and Language · Computer Science 2024-03-26 Jiashuo Sun , Chengjin Xu , Lumingyuan Tang , Saizhuo Wang , Chen Lin , Yeyun Gong , Lionel M. Ni , Heung-Yeung Shum , Jian Guo