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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

Knowledge graphs (KGs) have become the standard technology for the representation of factual information in applications such as recommendation engines, search, and question-answering systems. However, the continual updating of KGs, as well…

Artificial Intelligence · Computer Science 2023-07-24 Walid S. Saba

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…

There is enormous growth in various fields of research. This development is accompanied by new problems. To solve these problems efficiently and in an optimized manner, algorithms are created and described by researchers in the scientific…

Artificial Intelligence · Computer Science 2022-05-27 Jyotima Patel , Biswanath Dutta

Knowledge graphs (KG) are used in a wide range of applications. The automation of KG generation is very desired due to the data volume and variety in industries. One important approach of KG generation is to map the raw data to a given KG…

Artificial Intelligence · Computer Science 2022-09-23 Dongzhuoran Zhou , Baifan Zhou , Jieying Chen , Gong Cheng , Egor V. Kostylev , Evgeny Kharlamov

Ontologies are pivotal for structuring knowledge bases to enhance question answering (QA) systems powered by Large Language Models (LLMs). However, traditional ontology creation relies on manual efforts by domain experts, a process that is…

Artificial Intelligence · Computer Science 2025-06-03 Yash Tiwari , Owais Ahmad Lone , Mayukha Pal

Knowledge graphs (KGs) have the advantage of providing fine-grained detail for question-answering systems. Unfortunately, building a reliable KG is time-consuming and expensive as it requires human intervention. To overcome this issue, we…

Computation and Language · Computer Science 2021-03-12 Seunghak Yu , Tianxing He , James Glass

Ontologies can act as a schema for constructing knowledge graphs (KGs), offering explainability, interoperability, and reusability. We explore \emph{ontology-compliant} KGs, aiming to build both internal and external ontology compliance. We…

Information Retrieval · Computer Science 2026-03-31 Zhangcheng Qiang

The ability to construct domain specific knowledge graphs (KG) and perform question-answering or hypothesis generation is a transformative capability. Despite their value, automated construction of knowledge graphs remains an expensive…

Despite widespread applications of knowledge graphs (KGs) in various tasks such as question answering and intelligent conversational systems, existing KGs face two major challenges: information granularity and deficiency in timeliness.…

Artificial Intelligence · Computer Science 2024-05-01 Linyi Ding , Sizhe Zhou , Jinfeng Xiao , Jiawei Han

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

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 have become the primary vehicle for data integration and are critical to the success of modern AI, but the diversity of KG modelling practices, from lightweight vocabularies to richly axiomatised ontologies, makes…

Artificial Intelligence · Computer Science 2026-05-26 Enrico Daga , Valentina Tamma , Terry Payne

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

Extracting relevant and structured knowledge from large, complex technical documents within the Reliability and Maintainability (RAM) domain is labor-intensive and prone to errors. Our work addresses this challenge by presenting OntoKGen, a…

Artificial Intelligence · Computer Science 2024-12-11 Mohammad Sadeq Abolhasani , Rong Pan

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…

The ability to summarize and organize knowledge into abstract concepts is key to learning and reasoning. Many industrial applications rely on the consistent and systematic use of concepts, especially when dealing with decision-critical…

Computation and Language · Computer Science 2024-05-31 Rosario Uceda-Sosa , Karthikeyan Natesan Ramamurthy , Maria Chang , Moninder Singh

Industrial analytics that includes among others equipment diagnosis and anomaly detection heavily relies on integration of heterogeneous production data. Knowledge Graphs (KGs) as the data format and ontologies as the unified data schemata…

Ontology learning is a critical task in industry, dealing with identifying and extracting concepts captured in text data such that these concepts can be used in different tasks, e.g. information retrieval. Ontology learning is non-trivial…

Information Retrieval · Computer Science 2019-03-12 Yiming Xu , Dnyanesh Rajpathak , Ian Gibbs , Diego Klabjan

In this paper, we describe an approach to populate an existing ontology with instance information present in the natural language text provided as input. An ontology is defined as an explicit conceptualization of a shared domain. This…

Information Retrieval · Computer Science 2013-02-07 Raghu Anantharangachar , Srinivasan Ramani , S Rajagopalan
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