A5017360104- Semantic Web and Ontologies
- Advanced Database Systems and Queries
- Data Quality and Management
- Graph Theory and Algorithms
- Data Management and Algorithms
- Advanced Graph Neural Networks
- Scientific Computing and Data Management
- Caching and Content Delivery
- Biomedical Text Mining and Ontologies
- Natural Language Processing Techniques
- Image Retrieval and Classification Techniques
- Formal Methods in Verification
- Advanced Data Storage Technologies
- Software Engineering Research
- Web Data Mining and Analysis
- Genomics and Phylogenetic Studies
- Logic, programming, and type systems
- Service-Oriented Architecture and Web Services
- Peer-to-Peer Network Technologies
- Optimization and Search Problems
- Cloud Data Security Solutions
- Health, Education, and Physical Culture
- Image Processing and 3D Reconstruction
- Complexity and Algorithms in Graphs
- Crime, Illicit Activities, and Governance
Laboratoire des Sciences du Numérique de Nantes
2016-2025
Nantes Université
2013-2025
Aalborg University
2015-2023
Faculty of Design
2018
Simón Bolívar University
2012-2015
National Institute of Anthropology and History
2003
Escuela Nacional de Antropología e Historia
2003
One of the major obstacles that currently prevents Semantic Web from exploiting its full potential is data it provides access to sometimes not available or outdated. The reason rooted deep within architecture relies on providers keep available, queryable, and up-to-date at all times – an expectation many in reality cannot live up for extended (or infinite) period time. Hence, decentralized architectures have recently been proposed use replication case provider fails. Although this increases...
While the Web of Data in principle offers access to a wide range interlinked data, architecture Semantic today relies mostly on data providers maintain their through SPARQL endpoints. Several studies, however, have shown that such endpoints often experience downtime, meaning they becomes inaccessible. decentralized systems based Peer-to-Peer (P2P) technology previously increase availability knowledge graphs, even when large proportion nodes fail, processing queries setup can be an expensive...
SPARQL query services that balance processing between clients and servers become more essential to handle the increasing load for open decentralized knowledge graphs on Web. To this end, Linked Data Fragments (LDF) have introduced a foundational framework has sparked research exploring spectrum of potential Web querying interfaces in server-side via endpoints client-side data dumps. Current proposals typically suffer from imbalanced either client or server. In paper, best our knowledge, we...
Vast amounts of world knowledge is now accessible through Knowledge Graphs (KGs) in RDF format and can be queried using SPARQL. Yet, finding paths between nodes such graphs not part the official SPARQL 1.1 standard; only simpler functionality checking reachability supported, i.e., assessing whether two are connected based on certain conditions formalized as property but without providing information how they actually connected. To close this gap functionality, we present J edi , a system...
Data replication and deployment of local SPARQL endpoints improve scalability availability public endpoints, making the consumption Linked a reality. This solution requires synchronization specific query processing strategies to take advantage replication. However, existing aware techniques in federations do not consider data dynamicity. We propose Fedra, an approach for querying that benefits from Participants Fedra can copy fragments several datasets, describe them using provenance views....
The Semantic Web offers access to a vast of interlinked information accessible via SPARQL endpoints. Such endpoints offer well-defined interface retrieve results for complex queries. computational load processing such amount information. While they efficiently retrieving queries, query loads can easily overload or crash as all the answering queries resides entirely with server hosting endpoint. Recently proposed interfaces, Triple Pattern Fragments, have therefore shifted some from client at...