- Semantic Web and Ontologies
- Data Quality and Management
- Scientific Computing and Data Management
- Biomedical Text Mining and Ontologies
- Advanced Database Systems and Queries
- Mathematics, Computing, and Information Processing
- Service-Oriented Architecture and Web Services
- Research Data Management Practices
- Natural Language Processing Techniques
- Auction Theory and Applications
- Topic Modeling
- Library Science and Information Systems
- Open Education and E-Learning
- Web Data Mining and Analysis
- Logic, Reasoning, and Knowledge
- Game Theory and Voting Systems
- Wikis in Education and Collaboration
- Digital Humanities and Scholarship
- Logic, programming, and type systems
- Business Process Modeling and Analysis
- Advanced Graph Neural Networks
- Distributed and Parallel Computing Systems
- Consumer Market Behavior and Pricing
- scientometrics and bibliometrics research
- Geographic Information Systems Studies
Fraunhofer Institute for Applied Information Technology
2019-2024
RWTH Aachen University
2019-2023
University of Bonn
2014-2021
Fraunhofer Institute for Intelligent Analysis and Information Systems
2015-2019
University of Birmingham
2007-2014
Fraunhofer Institute for Algorithms and Scientific Computing
2014
University of Bremen
2012-2013
Constructor University
2008-2013
Saarland University
2007
Johannes Kepler University of Linz
2007
The increasing variety of Linked Data on the Web makes it challenging to determine quality this data and, subsequently, make information explicit consumers. Despite availability a number tools and frameworks assess Quality, output such is not suitable for machine consumption, thus consumers can hardly compare rank datasets in order fitness use . This article describes conceptual methodology assessing Datasets, Luzzu; framework Quality Assessment. Luzzu based four major components: (1) an...
Mathematics is a ubiquitous foundation of science, technology, and engineering. Specific areas mathematics, such as numeric symbolic computation or logics, enjoy considerable software support. Working mathematicians have recently started to ad
The increasing adoption of the Linked Data principles brought with it an unprecedented dimension to Web, transforming traditional Web Documents a vibrant information ecosystem, also known as Data. This transformation, however, does not come without any pain points. Similar Documents, is heterogenous in terms various domains covers. diversity reflected its quality. quality impacts fitness for use data application at hand, and choosing right dataset often challenge consumers. In this...
Industry 4.0 is a global endeavor of automation and data exchange to create smart factories maximizing production capabilities allowing for new business models. The Reference Architecture Model (RAMI 4.0) describes the core aspects defines Administration Shells as digital representations components. In this paper, we present an approach model implement components with Resource Description Framework (RDF). addresses challenges interoperable communication machine comprehension in settings...
Large amounts of geospatial data have been made available recently on the linked open cloud and portals many national cartographic agencies (e.g., OpenStreetMap data, administrative geographies various countries, or land cover/land use sets). These datasets vocabularies can be queried using SPARQL its OGC-standardized extension GeoSPARQL. In this paper we go beyond these approaches to offer a question answering service top sources. Our system has implemented as re-usable components Qanary...
In dataspaces, federation services facilitate key functions such as enabling participating organizations to establish mutual trust and assisting them in discovering data available for consumption. Discovery is enabled by a catalogue, where participants publish metadata describing themselves their service offerings Verifiable Presentations (VPs), that other may query them. This paper presents the Eclipse Cross Federation Services Components (XFSC) Catalogue, which originated catalogue...
In the digital age, data has emerged as one of most valuable assets across various sectors, including academia, industry, and healthcare. Effective preservation involves management to ensure its long-term accessibility usability. Given importance sensitivity data, need for effective is a crucial necessity. One big recent proposed approaches FAIR Digital Objects (FDOs) which revolutionize field preservation. Central this revolution alignment FDOs with principles (Findable, Accessible,...
The role that ontologies play or can in designing and employing semantic technologies has been widely acknowledged by the Semantic Web Linked Data communities.But level of collaboration between these communities Applied Ontology community much less than expected.Also, ontological techniques appear to be marginalized use Big its applications.To understand this situation foster greater collaboration, Summit 2014 brought together representatives from Web, Data, communities, address three basic...
The increasing variety of Linked Data on the Web makes it challenging to determine quality this data, and subsequently make information explicit data consumers. Despite availability a number tools frameworks assess Quality, output such is not suitable for machine consumption, thus consumers can hardly compare rank datasets in order fitness use. This paper describes Luzzu, framework Quality Assessment. Luzzu based four major components: (1) an extensible interface defining new metrics, (2)...
The nature of the RDF data model allows for numerous descriptions same entity. For example, different vocabularies may be utilized to describe pharmacogenomic data, and drug or gene is represented by graphs in DBpedia Drug-bank. To provide a unified representation real-world entity, need semantically integrated. Semantic integration requires management knowledge encoded determine relatedness representations e.g., axiomatic definition vocabulary properties resource equivalences. We devise...