• Publications
  • Influence
Formalizing Ontology Alignment and its Operations with Category Theory
TLDR
A category-theoretical model in which ontologies are the objects and a categorical structure, called V-alignment, made of a pair of morphisms with a common domain having the ontologies as codomain is introduced, serves to design an algebra that describes formally what are ontology merging, alignment composition, union and intersection using categorical constructions. Expand
Scalable and distributed methods for entity matching, consolidation and disambiguation over linked data corpora
TLDR
Evaluation over a diverse Linked Data corpus consisting of 1.118 billion quadruples derived from a domain-agnostic, open crawl of 3.985 million RDF/XML Web documents is offered, demonstrating the feasibility of the methods at that scale, and giving insights into the quality of the results for real-world data. Expand
A General Framework for Representing, Reasoning and Querying with Annotated Semantic Web Data
TLDR
A generic framework for representing and reasoning with annotated Semantic Web data is described, and a generic method for combining multiple annotation domains allowing to represent, e.g., temporally-annotated fuzzy RDF is provided. Expand
A SPARQL Extension for Generating RDF from Heterogeneous Formats
TLDR
A new language, SPARQL-Generate, that generates RDF from: (i) a RDF Dataset, and (ii) a set of documents in arbitrary formats, and it is shown that this first naive open source implementation performs better than the reference implementation of RML for big transformations. Expand
Some entities are more equal than others: statistical methods to consolidate Linked Data
TLDR
This work proposes a method for consolidating entities in RDF data on the Web based on a statistical analysis of the use of predicates and their associated values to identify “quasi”-key properties, and argues that it scales well—possibly to the size of the current Web of Data. Expand
Expressive alignment language and implementation
TLDR
This deliverable provides the description of an alignment language which is both expressive and independent from ontology languages and presents the current implementation of this expressive language within the Alignment API taking advantage of the OMWG implementation. Expand
The SEAS Knowledge Model
TLDR
This deliverable describes the SEAS Knowledge Model as a basis for semantic interoperability in the SEas ecosystem as well as an innovative Web ontology designed to meet the current best practices in terms of quality, metadata, and publication. Expand
Integrated Distributed Description Logics
TLDR
A Description-Logics-based language that extends standard DL with distributed capabilities offers the possibility to formally describe the semantic relations that exist between two ontologies in a networked knowledge-based system. Expand
Building IoT-Based Applications for Smart Cities: How Can Ontology Catalogs Help?
TLDR
This paper presents a methodology to enrich ontology catalogs with those ontologies that are relevant for IoT and smart cities and is generic enough to be applied to any other domains. Expand
Knowledge graphs
TLDR
The historical events that lead to the interweaving of data and knowledge are tracked to help improve knowledge and understanding of the world around us. Expand
...
1
2
3
4
5
...