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Large knowledge graphs combine human knowledge garnered from projects ranging from academia and institutions to enterprises and crowdsourcing. Within such graphs, each relationship between two nodes represents a basic fact involving these…

Artificial Intelligence · Computer Science 2024-06-11 Loïck Lhote , Béatrice Markhoff , Arnaud Soulet

Information sources such as relational databases, spreadsheets, XML, JSON, and Web APIs contain a tremendous amount of structured data that can be leveraged to build and augment knowledge graphs. However, they rarely provide a semantic…

Artificial Intelligence · Computer Science 2016-01-19 Mohsen Taheriyan , Craig A. Knoblock , Pedro Szekely , Jose Luis Ambite

In recent years, data science has evolved significantly. Data analysis and mining processes become routines in all sectors of the economy where datasets are available. Vast data repositories have been collected, curated, stored, and used…

Artificial Intelligence · Computer Science 2022-07-19 Quoc Hung Ngo , Tahar Kechadi , Nhien-An Le-Khac

The goal of the Collaborative Research Center 1625 is the establishment of a scientific basis for the atomic-scale understanding and design of multifunctional compositionally complex solid solution surfaces. Next to materials synthesis in…

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

Enterprise-scale knowledge management faces significant challenges in integrating multi-source heterogeneous data and enabling effective semantic reasoning. Traditional knowledge graphs often struggle with implicit relationship discovery…

Computation and Language · Computer Science 2026-02-03 Yao Zhang , Hongyin Zhu

Enterprises are creating domain-specific knowledge graphs by curating and integrating their business data from multiple sources. The data in these knowledge graphs can be described using ontologies, which provide a semantic abstraction to…

Databases · Computer Science 2020-10-06 Chuan Lei , Rana Alotaibi , Abdul Quamar , Vasilis Efthymiou , Fatma Özcan

Modern information systems are changing the idea of "data processing" to the idea of "concept processing", meaning that instead of processing words, such systems process semantic concepts which carry meaning and share contexts with other…

Computation and Language · Computer Science 2018-11-09 Roger Granada , Renata Vieira , Cassia Trojahn , Nathalie Aussenac-Gilles

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…

Relational data sources are still one of the most popular ways to store enterprise or Web data, however, the issue with relational schema is the lack of a well-defined semantic description. A common ontology provides a way to represent the…

Machine Learning · Computer Science 2018-01-31 Natalia Ruemmele , Yuriy Tyshetskiy , Alex Collins

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

This paper presents a semantic system named OntMed for an ontology-based data integration of heterogeneous data sources to achieve interoperability between heterogeneous data sources. Our system is based on the quality criteria…

Databases · Computer Science 2023-07-04 Muhammad Fahad

Constructing comprehensive knowledge graphs requires the use of multiple ontologies in order to fully contextualize data into a domain. Ontology matching finds equivalences between concepts interconnecting ontologies and creating a cohesive…

Artificial Intelligence · Computer Science 2025-10-27 Marta Contreiras Silva , Daniel Faria , Catia Pesquita

Every business needs knowledge about their competitors to survive better. One of the information repositories is web. Retrieving Specific information from the web is challenging. An Ontological model is developed to capture specific…

Information Retrieval · Computer Science 2011-09-07 A. Martin , D. Maladhy , V. Prasanna Venkatesan

For a long time threat modeling was treated as a manual, complicated process. However modern agile development methodologies and cloud computing technologies require adding automatic threat modeling approaches. This work considers two…

Cryptography and Security · Computer Science 2023-03-21 Andrei Brazhuk

While coreference resolution is traditionally used as a component in individual document understanding, in this work we take a more global view and explore what can we learn about a domain from the set of all document-level coreference…

Computation and Language · Computer Science 2024-10-23 Shir Ashury-Tahan , Amir David Nissan Cohen , Nadav Cohen , Yoram Louzoun , Yoav Goldberg

Disconnected data silos within enterprises obstruct the extraction of actionable insights, diminishing efficiency in areas such as product development, client engagement, meeting preparation, and analytics-driven decision-making. This paper…

Artificial Intelligence · Computer Science 2025-03-12 Rajeev Kumar , Kumar Ishan , Harishankar Kumar , Abhinandan Singla

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

Nowadays, a huge amount of knowledge has been amassed in digital agriculture. This knowledge and know-how information are collected from various sources, hence the question is how to organise this knowledge so that it can be efficiently…

Databases · Computer Science 2020-11-24 Quoc Hung Ngo , Tahar Kechadi , Nhien-An Le-Khac

A critical step in sharing semantic content online is to map the structural data source to a public domain ontology. This problem is denoted as the Relational-To-Ontology Mapping Problem (Rel2Onto). A huge effort and expertise are required…

Artificial Intelligence · Computer Science 2022-12-22 Jiakang Xu , Wolfgang Mayer , HongYu Zhang , Keqing He , Zaiwen Feng