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The W3C Web Ontology Language (OWL) is a powerful knowledge representation formalism at the basis of many semantic-centric applications. Since its unrestricted usage makes reasoning undecidable already in case of very simple tasks,…

Artificial Intelligence · Computer Science 2020-08-06 Alessio Fiorentino , Jessica Zangari , Marco Manna

This paper shines a light on the potential of definition-based semantic models for detecting idiomatic and semi-idiomatic multiword expressions (MWEs) in clinical terminology. Our study focuses on biomedical entities defined in the UMLS…

Computation and Language · Computer Science 2023-05-12 François Remy , Alfiya Khabibullina , Thomas Demeester

We propose a methodology for extracting concepts for a target domain from large-scale linked open data (LOD) to support the construction of domain ontologies providing field-specific knowledge and definitions. The proposed method defines…

Information Retrieval · Computer Science 2022-01-31 Satoshi Kume , Kouji Kozaki

Both named entities and keywords are important in defining the content of a text in which they occur. In particular, people often use named entities in information search. However, named entities have ontological features, namely, their…

Information Retrieval · Computer Science 2018-07-17 Tru H. Cao , Vuong M. Ngo

Ever growing number of image documents available on the Internet continuously motivates research in better annotation models and more efficient retrieval methods. Formal knowledge representation of objects and events in pictures, their…

Information Retrieval · Computer Science 2017-12-06 Marko Horvat , Anton Grbin , Gordan Gledec

This works is motivated by a real-world case study where it is necessary to integrate and relate existing ontologies through meta- modelling. For this, we introduce the Description Logic ALCQM which is obtained from ALCQ by adding…

Artificial Intelligence · Computer Science 2014-10-30 Regina Motz , Edelweis Rohrer , Paula Severi

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

Document-level biomedical concept extraction is the task of identifying biomedical concepts mentioned in a given document. Recent advancements have adapted pre-trained language models for this task. However, the scarcity of domain-specific…

Computation and Language · Computer Science 2024-07-04 Qiwei Shao , Fengran Mo , Jian-Yun Nie

There is an ecosystem of VDM libraries and extensions that includes a translation and proof environment for VDM in Isabelle. Translation works for a large subset of VDM-SL and further constructs are being added on demand. A key impediment…

Programming Languages · Computer Science 2023-05-01 Leo Freitas

Ontologies present an attractive technology for describing bio-medicine, because they can be shared, and have rich computational properties. However, they lack the rich expressivity of English and fit poorly with the current scientific…

Digital Libraries · Computer Science 2015-12-15 Phillip Lord , Jennifer Warrendar

This paper presents the principles of ontology-supported and ontology-driven conceptual navigation. Conceptual navigation realizes the independence between resources and links to facilitate interoperability and reusability. An engine builds…

Information Retrieval · Computer Science 2007-05-23 Michel Crampes , Sylvie Ranwez

Literary theme identification and interpretation is a focal point of literary studies scholarship. Classical forms of literary scholarship, such as close reading, have flourished with scarcely any need for commonly defined literary themes.…

Information Retrieval · Computer Science 2019-08-20 Paul Sheridan , Mikael Onsjö , Janna Hastings

In this position paper we present a new approach for discovering some special classes of assertional knowledge in the text by using large RDF repositories, resulting in the extraction of new non-taxonomic ontological relations. Also we use…

Information Retrieval · Computer Science 2013-08-06 Meisam Booshehri , Abbas Malekpour , Peter Luksch , Kamran Zamanifar , Shahdad Shariatmadari

Definitions are the foundation for any scientific work, but with a significant increase in publication numbers, gathering definitions relevant to any keyword has become challenging. We therefore introduce SciDef, an LLM-based pipeline for…

Information Retrieval · Computer Science 2026-02-06 Filip Kučera , Christoph Mandl , Isao Echizen , Radu Timofte , Timo Spinde

The delineation of logical definitions for each class in an ontology and the consistent application of these definitions to the assignment of instances to classes are important criteria for ontology evaluation. If ontologies are specified…

Quantitative Methods · Quantitative Biology 2015-02-24 Benjamin M. Good , Gavin Ha , Chi K. Ho , Mark D. Wilkinson

Ontology matching is the process of automatically determining the semantic equivalences between the concepts of two ontologies. Most ontology matching algorithms are based on two types of strategies: terminology-based strategies, which…

Artificial Intelligence · Computer Science 2015-07-14 Shangpu Jiang , Daniel Lowd , Dejing Dou

The Semantic Web standardizes concept meaning for humans and machines, enabling machine-operable content and consistent interpretation that improves advanced analytics. Reusing ontologies speeds development and enforces consistency, yet…

Artificial Intelligence · Computer Science 2026-04-15 Aryan Singh Dalal , Maria Baloch , Asiyah Yu Lin , Anna Maria Masci , Kathleen M. Jagodnik , Hande Kucuk McGinty

The expanding Lean 4 ecosystem poses challenges for navigating its vast libraries. This paper introduces LeanExplore, a search engine for Lean 4 declarations. LeanExplore enables users to semantically search for statements, both formally…

Software Engineering · Computer Science 2025-06-16 Justin Asher

Representation of defeasible information is of interest in description logics, as it is related to the need of accommodating exceptional instances in knowledge bases. In this direction, in our previous works we presented a datalog…

Logic in Computer Science · Computer Science 2019-05-23 Loris Bozzato , Thomas Eiter , Luciano Serafini

Ontology evaluation through functional requirements, such as testing via competency question (CQ) verification, is a well-established yet costly, labour-intensive, and error-prone endeavour, even for ontology engineering experts. In this…