Biography

I am David Chaves-Fraga, assistant professor at Universidade de Santiago de Compostela (USC, Spain) and a senior researcher at the Center for Research in Intelligent Technologies (CiTIUS@USC). I am a former researcher at the Ontology Engineering Group (OEG) at Technical University of Madrid (UPM) where I hold my PhD with my thesis "Knowledge Graph Construction from Heterogeneous Data Sources Exploiting Declarative Mapping Rules" in 2021. I was also research collaborator at the Declarative Languages and Artificial Intelligence Group (DTAI) at KU Leuven, Belgium (2022-2025). My main research lines are focused on the optimization and evaluation of data integration systems, mainly the construction of Knowledge Graphs from (semi)structured sources using declarative mapping rules.

As I really believe that research is a collaborative task, I'm continuously trying to contribute to my research community. For that reason, I'm currently co-chairing the W3C community group for Knowledge Graph Construction, I organize a homonymous workshop series (KGCW) and gave several tutorials in semantic web conferences about this topic. Additionally, I have been the main coordinator of Open Summer of Code in Spain from 2018 to 2021, a formative, international, and innovative program for undergrad and master students.

Education

  • Ph.D in Artificial Intelligence (2016-2021)
    Universidad Politécnica de Madrid, Spain
  • Master in Articial Intelligence (2015-2016)
    Universidad Politécnica de Madrid, Spain
  • Bachelor in Computer Science (2011-2015)
    Universidade de Santiago de Compostela, Spain

Experience

Publications

From Genesis to Maturity: Managing Knowledge Graph Ecosystems Through Life Cycles
Sandra Geisler, Cinzia Cappiello, Irene Celino, David Chaves-Fraga, Anastasia Dimou, Ana Iglesias-Molina, Maurizio Lenzerini, Anisa Rula, Dylan Van Assche, Sascha Welten, and Maria-Esther Vidal.
International Conference on Very Large Data Bases (VLDB), 2025
Paper
Declarative Generation of RDF Collections & Containers from Heterogeneous Data
Christophe Debruyne, Souail Jaadari, David Chaves-Fraga.
SEMANTiCS, 2025
Best Paper Award at Research & Innovation Track
Paper Code
Declarative Generation of RDF-star Graphs from Heterogeneous Data
Julián Arenas-Guerrero, Ana Iglesias-Molina, David Chaves-Fraga, Daniel Garijo, Oscar Corcho and Anastasia Dimou.
Semantic Web Journal - Special Issue on Tools & Systems, 2025
Paper Code
Empowering the SDM-RDFizer Tool for Scaling Up to Complex Knowledge Graph Creation Pipelines
Enrique Iglesias, Maria-Esther Vidal, Diego Collarana, David Chaves-Fraga.
Semantic Web Journal - Special Issue on Tools & Systems , 2025
Paper Code
On Dependencies in Knowledge Graph Construction
Eduard Kamburjan, Romana Pernisch, Oscar Corcho, David Chaves-Fraga.
6th Edition of the Knowledge Graph Construction Workshop co-located with ESWC, 2025
Paper Code
Are Knowledge Graphs Ready for the Real World? Challenges and Perspective
David Chaves-Fraga, Oscar Corcho, Anastasia Dimou and Maria-Esther Vidal.
Report from Dagstuhl Seminar, 2024
Report
KROWN: A Benchmark for RDF Graph Materialisation
Dylan Van Assche, David Chaves-Fraga, Anastasia Dimou.
International Semantic Web Conference, 2024
Nominated for the Best Paper Award in the Resources Track
Paper Code
An Ontological Approach for Representing Declarative Mapping Languages
Ana Iglesias-Molina, Andrea Cimmino, Edna Ruckhaus, David Chaves-Fraga, Raúl García-Castro, Oscar Corcho.
Semantic Web Journal, 2024
Paper Ontology
Morph-KGC: Scalable Knowledge Graph Materialization with Mapping Partitions
Julián Arenas-Guerrero, David Chaves-Fraga, Jhon Toledo, María S. Pérez, Oscar Corcho.
Semantic Web Journal, 2024
Paper Code
SCOOP all the Constraints’ Flavours for your Knowledge Graph
Xuemin Duan, David Chaves-Fraga, Olivier Derom, and Anastasia Dimou.
Extended Semantic Web Conference, 2024
Paper Code
SCOOP-UI: SHACL Shape Extraction in Just a Click!
Xuemin Duan, David Chaves-Fraga, and Anastasia Dimou.
Extended Semantic Web Conference (P&D), 2024
Paper Demo Code
RMLdoc: Documenting Mapping Rules for Knowledge Graph Construction
Jhon Toledo, Ana Iglesias-Molina, David Chaves-Fraga, and Daniel Garijo.
Extended Semantic Web Conference (P&D), 2024
Paper Code
When Ontologies met Knowledge Graphs: Tale of a Methodology
Romana Pernisch, María Poveda-Villalón, Diego Conde-Herreros, David Chaves-Fraga, and Lise Stork.
Extended Semantic Web Conference (P&D), 2024
Paper
Propagating Ontology Changes to Declarative Mappings in Construction of Knowledge Graphs
Diego Conde-Herreros, Lise Stork, Romana Pernisch, María Poveda-Villalón, Oscar Corcho, and David Chaves-Fraga.
5th Edition of the Knowledge Graph Construction Workshop co-located with ESWC, 2024
Paper Code
The RML Ontology: A Community-Driven Modular Redesign After a Decade of Experience in Mapping Heterogeneous Data to RDF
Ana Iglesias-Molina, Dylan Van Assche, Julián Arenas-Guerrero, Ben De Meester, Christophe Debruyne, Samaneh Jozashoori, Pano Maria, Franck Michel, David Chaves-Fraga, and Anastasia Dimou.
International Semantic Web Confernece, 2023
Nominated for the Best Paper Award in the Resources Track
Paper RML Portal
XSD2SHACL: Capturing RDF Constraints from XML Schema
Xuemin Duan, David Chaves-Fraga, and Anastasia Dimou.
International Conference on Knowledge Capture, 2023
Paper XSD2SHACL
Re-Construction Impact on Metadata Representation Models
Ana Iglesias-Molina, Jhon Toledo, Oscar Corcho, and David Chaves-Fraga.
International Conference on Knowledge Capture, 2023
Paper Resources
Human-Friendly RDF Graph Construction: Which one do you chose?
Ana Iglesias-Molina, David Chaves-Fraga, Ioannis Dasoulas, and Anastasia Dimou.
International Conference on Web Engineering, 2023
Paper Yatter
Declarative RDF construction from in-memory data structures with RML
Ioannis Dasoulas, David Chaves-Fraga, Daniel Garijo, and Anastasia Dimou.
4th Edition of the Knowledge Graph Construction Workshop co-located with ESWC, 2023
Paper Morph-KGC-RAM
Evo-KnoMo: How to Evolve with the Current Times (fiction paper)
Oscar Corcho, Ana Iglesias-Molina, Edna Ruckhaus, Jhon Toledo, ChatOEG, and David Chaves-Fraga.
Extended Semantic Web Conference, 2023 (or 2043)
Paper
Handling Qualitative Preferences in SPARQL over Virtual Ontology-Based Data Access
Marlene Goncalves, David Chaves-Fraga, Oscar Corcho.
Semantic Web Journal, 2022
Paper Code
Systematic Construction of Knowledge Graphs for Research-Performing Organizations.
David Chaves-Fraga, Oscar Corcho, Francisco Yedro, Roberto Moreno, Juan Olías and Alejandro De La Azuela
Information, 2022
Paper
Declarative Description of Knowledge Graphs Construction Automation: Status & Challenges.
David Chaves-Fraga, Anastasia Dimou.
3rd Edition of the Knowledge Graph Construction Workshop co-located with ESWC, 2022
Paper
Guía práctica para la publicación de datos enlazados
David Chaves-Fraga, Edna Ruckhaus, and Oscar Corcho.
datos.gob.es, 2022
Document (Spanish) Resources
Knowledge Graph Construction from Heterogeneous Data Sources Exploiting Declarative Mapping Rules
David Chaves-Fraga
PhD Dissertation, 2021
Document Slides
Enhancing Virtual Ontology Based Access over Tabular Data with Morph-CSV
David Chaves-Fraga, Edna Ruckhaus, Freddy Priyatna, Maria-Esther Vidal, Oscar Corcho.
Semantic Web Journal, 2021
Paper Code
A High-Level Ontology Network for ICT Infrastructures
Oscar Corcho, David Chaves-Fraga, Jhon Toledo, Julián Arenas-Guerrero, Carlos Badenes-Olmedo, Mingxue Wang, Hu Peng, Nicholas Burrett, José Mora, Puchao Zhang
International Semantic Web Conference, 2021
Paper Resource
RML-star: A Declarative Mapping Languagefor RDF-star Generation
Thomas Delva, Julián Arenas-Guerrero, Ana Iglesias-Molina, Oscar Corcho, David Chaves-Fraga, and Anastasia Dimou
International Semantic Web Conference Demos, 2021
Paper Specification
Knowledge Graph Construction with R2RML and RML: An ETL System-based Overview
Julián Arenas-Guerrero, Mario Scrocca, Ana Iglesias-Molina, Jhon Toledo, Luis Pozo-Gilo,Daniel Dona,
Oscar Corcho, David Chaves-Fraga.
2nd Edition of the Knowledge Graph Construction Workshop co-located with ESWC, 2021
Paper Resources
GTFS-Madrid-Bench: A Benchmark for Virtual Knowledge Graph Access in the Transport Domain
David Chaves-Fraga, Freddy Priyatna, Andrea Cimmino, Jhon Toledo, Edna Ruckhaus, Oscar Corcho
Journal of Web Semantics, 2020
Paper Resource
Towards a New Generation of Ontology Based Data Access
Oscar Corcho, Freddy Priyatna, David Chaves-Fraga
Semantic Web Journal, 2020
Paper
Exploiting Declarative Mapping Rules for Generating GraphQL Servers with Morph-GraphQL
David Chaves-Fraga, Freddy Priyatna, Ahmad Alobaid, Oscar Corcho
International Journal of Software Engineering and Knowledge Engineering, 2020
Paper Code (Deprecated)
FunMap: Efficient Execution of Functional Mappings for Knowledge Graph Creation
Samaneh Jozashoori, David Chaves-Fraga, Enrique Iglesias, Maria-Esther Vidal, Oscar Corcho
International Semantic Web Conference, 2020
Paper Code
SDM-RDFizer: An RML Interpreter for the Efficient Creation of RDF Knowledge Graphs
Enrique Iglesias, Samaneh Jozashoori, David Chaves-Fraga, Diego Collarana, Maria-Esther Vidal
International Conference on Information & Knowledge Management, 2020
Paper Code
Morph-Skyline: Virtual Ontology-Based Data Access for Skyline Queries
Marlene Goncalves, David Chaves-Fraga, Oscar Corcho.
IEEE/WIC/ACM International Joint Conference on Web Intelligence and Intelligent Agent Technology, 2020
Paper Code
Morph-CSV: Virtual Knowledge Graph Access for Tabular Data
David Chaves-Fraga, Luis Pozo-Gilo, Jhon Toledo, Edna Ruckhaus, Oscar Corcho
International Semantic Web Conference Demos, 2020
Paper Demo Video
Mapeathor: Simplifying the Specification of Declarative Rules for Knowledge Graph Construction
Ana Iglesias-Molina, Luis Pozo-Gilo, Daniel Dona, Edna Ruckhaus, David Chaves-Fraga, Oscar Corcho
International Semantic Web Conference Demos, 2020
Paper Demo
Morph-Skyline: Skyline Queries for Virtual Knowledge Graph Access
Marlene Goncalves, David Chaves-Fraga, Oscar Corcho
International Semantic Web Conference Demos, 2020
Paper Demo
Drugs4Covid: Drug-driven Knowledge Exploitation based on Scientific Publications
Carlos Badenes-Olmedo, David Chaves-Fraga, et al.
arXiv preprint, 2020
Paper Resource
What Are the Parameters that Affect the Construction of a Knowledge Graph?
David Chaves-Fraga, Kemele M Endris, Enrique Iglesias, Oscar Corcho, Maria-Esther Vidal.
OTM Confederated International Conferences "On the Move to Meaningful Internet Systems", 2019
Paper Resource
Morph-GraphQL: GraphQL Servers Generation from R2RML Mappings
Freddy Priyatna, David Chaves-Fraga, Ahmad Alobaid , Óscar Corcho.
International Conference on Software Engineering and Knowledge Engineering, 2019
Paper Code (Deprecated)
Conformance Test Cases for the RDF Mapping Language (RML)
Pieter Heyvaert, David Chaves-Fraga, Freddy Priyatna, Oscar Corcho, Erik Mannens, Ruben Verborgh, Anastasia Dimou.
Iberoamerican Knowledge Graphs and Semantic Web Conference, 2019
Paper Test-Cases Implementation Report
Enhancing the Maintainability of the Bio2RDF Project Using Declarative Mappings.
Ana Iglesias-Molina, David Chaves-Fraga, Freddy Priyatna, Oscar Corcho.
Semantic Web Applications and Tools for Healthcare and Life Sciences, 2019
Paper Resource
Towards the Definition of a Language-Independent Mapping Template for Knowledge Graph Creation.
Ana Iglesias-Molina, David Chaves-Fraga, Freddy Priyatna, Oscar Corcho.
Third International Workshop on Capturing Scientific Knowledge co-located with 10th K-CAP, 2019
Paper Resource
SAD Generator: Eating Our Own Dog Food to Generate KGs and Websites for Academic Events
Pieter Heyvaert, David Chaves-Fraga, Freddy Priyatna, Juan Sequeda, Anastasia Dimou.
European Semantic Web Conference (Posters & Demos), 2019
Paper Code
GraphQL Servers Generation from R2RML with Morph-GraphQL
Ahmad Alobaid, David Chaves-Fraga, Freddy Priyatna, Óscar Corcho.
International Conference on Software Engineering and Knowledge Engineering (Demo), 2019
Paper
ONETT: Systematic Knowledge Graph Generation for National Access Points.
David Chaves-Fraga, Adolfo Antón, Jhon Toledo, Oscar Corcho.
First International Workshop on Semantics for Transport co-located with SEMANTiCS, 2019
Paper Resource
Optimized Term Extraction Method Based on Computing Merged Partial C-Values
Victoria Kosa, David Chaves-Fraga, Hennadii Dobrovolskyi, Vadim Ermolayev .
International Conference on Information and Communication Technologies in Education, Research, and Industrial Applications, 2019
Paper
Similar Terms Grouping Yields Faster Terminological Saturation.
Victoria Kosa, David Chaves-Fraga, Nataliya Keberle, Aliaksandr Birukou.
International Conference on Information and Communication Technologies in Education, Research, and Industrial Applications, 2019
Paper
Virtual Statistics Knowledge Graph Generation from CSV files
David Chaves-Fraga, Freddy Priyatna, Idafen Santana-Pérez, Óscar Corcho.
International Workshop on Semantic Statistics co-located woth 17th ISWC, 2018
Paper Code
Cross-Evaluation of Automated Term Extraction Tools by Measuring Terminological Saturation.
Victoria Kosa, David Chaves-Fraga, Dmitriy Naumenko, Eugene Yuschenko, Carlos Badenes-Olmedo, Vadim Ermolayev, Aliaksandr Birukou.
International Conference on Information and Communication Technologies in Education, Research, and Industrial Applications, 2018
Paper
The Jedi Approach: Using The Force to Solve Linked Data Incompleteness.
Valentina Anita Carriero, David Chaves-Fraga, Arnaud Grall, Lars Heling, Subhi Issa, Thomas Minier, Alberto Moya Loustaunau.
International Semantic Web Summer School, 2018
Paper
Providing Reliable Access to Real-Time and Historic Public Transport Data Using Linked Connections.
Julián Rojas, David Chaves-Fraga, Pieter Colpaert, Ruben Verborgh, Erik Mannens.
International Semantic Web Conference (Posters & Demos), 2017
Paper
The tripscore Linked Data client: calculating specific summaries over large time series.
David Chaves-Fraga, Julian Rojas, Pieter-Jan Vandenberghe, Pieter Colpaert, Oscar Corcho.
International Workshop on Decentralizing the Semantic Web co-located with 16th ISWC, 2017
Paper Code
On the Role of the GRAPH Clause in the Performance of Federated SPARQL Queries
David Chaves-Fraga, Oscar Corcho Garcia, Claudio Gutiérrez.
4th International Workshop on Dataset PROFIling and fEderated Search for Web Data co-located with 16th ISWC, 2017
Paper Code

Talks

Sistemas Basados en Conocimiento
David Chaves-Fraga
Curso de Verano de Camelia (USC), 2025
Slides
How do you construct your Knowledge Graph?
David Chaves-Fraga, Ana Iglesias-Molina.
Tutorial at ECAI 2024
Slides
The LOT4KG Methodology
David Chaves-Fraga.
Invited talk at IDLab (UGhent)
Slides
Challenges in Data Management for Evolving Knowledge Graphs
David Chaves-Fraga.
Keynote at 9th Managing the Evolution and Preservation of the Data Web Workshop at ISWC 2023
Slides
Web-Scale Semantic Data Integration: Challenges and Perspective
David Chaves-Fraga.
Keynote at 2nd International Workshop on the Semantic Web of Everything co-located with ICWE, 2023
Slides
Human-Friendly RDF Graph Construction: Which one do you chose?
Ana Iglesias-Molina, David Chaves-Fraga, Ioannis Dasoulas and Anastasia Dimou.
23rd International Conference on Web Engineering, 2023
Slides
From Data Spaces to Decentralized Knowledge Spaces: The Public Procurement use case
David Chaves-Fraga.
Panel at "Congreso Internacional de Espacios de Datos Sectoriales y Transparencia en el Sector Público", 2023
Slides
Evo-KnoMo: How to Evolve with the Current Times (fiction paper/presentation)
Oscar Corcho, Ana Iglesias-Molina, Edna Ruckhaus, Jhon Toledo and David Chaves-Fraga.
Extended Semantic Web Conference, 2023
Slides
Knowledge Graphs and Ontologies: A Practical Introduction to the Semantic Web
David Chaves-Fraga.
Universidad de Santiago de Compostela (Invited Talk), 2022
Slides
Declarative Knowledge Graph Construction: A Practical Introduction.
David Chaves-Fraga.
Ontology Engineering and Knowledge Graphs tool ecosystem Workshop (OntoCommons EU-Project), 2022
Slides Workshop Website
Declarative Description of Knowledge Graphs Construction Automation: Status & Challenges.
David Chaves-Fraga, Anastasia Dimou.
3rd Edition of the Knowledge Graph Construction Workshop co-located with ESWC, 2022
Slides
Why Mapping Rules are Important for Constructing your KG?
David Chaves-Fraga
Invited Talk at Polifonia H2020 project, 2022
Slides Project Website
Morph-KGCstar: Declarative Generation of RDF-star Datasets from Heterogeneous Data
David Chaves-Fraga David Chaves-Fragam, Julián Arenas-Guerro, Ana Iglesias-Molina, Daniel Garijo, Oscar Corcho, Anastasia Dimou
EAVISE group talk - KULeuven, 2022
Slides
Knowledge Graph Construction: From Optimization To Automation
David Chaves-Fraga
EAVISE group talk - KULeuven, 2022
Slides
Declarative Construction of Knowledge Graphs: one-year status-update
David Chaves-Fraga
OEG Internal Talk - UPM, 2022
Slides
Knowledge Graph Construction from Heterogeneous Data Sources Exploiting Declarative Mapping Rules
David Chaves-Fraga
PhD Dissertation, 2021
Slides
W3C Community Group - Knowledge Graph Construction
David Chaves-Fraga, Anastasia Dimou
Knowledge Graph Construction Workshop (ESWC), 2021
Slides
Welcome to Open Summer of Code 2021
David Chaves-Fraga
Open Summer of Code Spain, 2021
Slides
Knowledge Graph Construction Using Declarative Mapping Rules
Ana Iglesias-Molina, David Chaves-Fraga, Andrea Cimmino, Oscar Corcho
International Semantic Web Conference (Tutorial), 2020
Slides
Morph-CSV: Virtual Knowledge Graph Access for Tabular Data
David Chaves-Fraga, Luis Pozo
International Semantic Web Conference (Demo), 2020
Video
Knowledge Graph Construction and Access using Declarative Mappings
David Chaves-Fraga, Freddy Priyatna, Ahmad Alobaid, Andrea Cimmino, Ana Iglesias, Jhon Toledo, Daniel Doña, Luis Pozo, Edna Ruckhaus, Oscar Corcho
National Project Meeting, 2020
Slides
From Engineering to Research - The KG Construction Use Case
David Chaves-Fraga
Internal OEG Meeting, 2020
Slides
Generating and Querying (Virtual) Knowledge Graphs from Heterogeneous Data Sources
David Chaves-Fraga, Freddy Priyatna, Ahmad Alobaid, Andrea Cimmino, Oscar Corcho
International Semantic Web Conference (Tutorial), 2019
Slides
What are the Parameters that Affect the Construction of a Knowledge Graph?
David Chaves-Fraga
Ontologies, DataBases, and Applications of Semantics for Large Scale Information Systems (ODBASE), 2019
Slides
ONETT: Systematic Knowledge Graph Generation for National Access Point
David Chaves-Fraga
Sem4Tra Workshop, 2019
Slides
Virtual Knowledge Graph Generation from Heterogeneous Data Sources
David Chaves-Fraga
TIB Retreat, 2019
Slides
Knowledge Graph Construction
David Chaves-Fraga
Internal OEG Meeting, 2019
Slides
How to Develop Mapping Rules for Knowledge Graph Creation
Ana Iglesias-Molina, David Chaves-Fraga
Internal OEG Meeting, 2019
Slides
Lenguajes de Mapeo para el acceso datos heterogéneos (Spanish)
David Chaves-Fraga
National Project Meeting, 2019
Slides
Virtual Knowledge Graph Generation from Heterogeneous Data Sources
David Chaves-Fraga, Freddy Priyatna
Ghent University, 2018
Slides
GraphQL-Based Access to Virtual Datasets Exposed by RML Mappings
Freddy Priyatna, David Chaves-Fraga
Ghent University, 2018
Slides
The Jedi Approach: Using The Force to Solve Linked Data Incompleteness
Valentina Anita Carriero, David Chaves-Fraga, Arnaud Grall, Lars Heling, Subhi Issa, Thomas Minier, Alberto Moya Loustaunau
International Semantic Web Summer School (ISWS), 2018
Slides
RMLC: RDF Mapping Language for heterogeneous CSV files
David Chaves-Fraga
Internal OEG Meeting, 2018
Slides
Summary of Open Summer of Code 2018 (Spanish)
David Chaves-Fraga
Un año en un día - Medialab-Prado, 2018
Slides Video
Enlazando datos abiertos en el transporte público (Spanish)
David Chaves-Fraga, Oscar Corcho
Jornadas de periodismo de datos y datos abiertos - Medialab-Prado, 2018
Slides
Presentation of Open Summer of Code Spain (Spanish)
David Chaves-Fraga
Open Data Day - Medialab-Prado, 2018
Slides
On the Role of the GRAPH Clause in the Performance of Federated SPARQL Queries
David Chaves-Fraga
Profiles Workshop (ISWC), 2017
Slides
The tripscore Linked Data client: calculating specific summaries over large time series
David Chaves-Fraga
DeSemWeb Workshop (ISWC), 2017
Slides
Semantic Interoperability in the Transport Domain
David Chaves-Fraga
9th IT Combined Meeting in Cologne, 2017
Slides
Tripscore: Datos enlazados para el transporte público (Spanish)
David Chaves-Fraga
Dataton Madrid, 2017
Slides
The relevance of metadata in the transport domain: TransportDCAT-AP
David Chaves-Fraga
Civic Hack Night in Brussels, 2017
Slides

Community

Co-Chair of Knowledge Graph Construction W3C Community Group / 2020 - now
Register as a Participant
Organizer of Workshop Series on Knowledge Graph Construction / 2019-now
Visit Workshop Website
Chair of Workshops&Tutorials at SEMANTiCS / 2025
SEMTiCS Website
Organizer of Workshop on Software Lifecycle Management For Knowledge Graphs / 2024
Visit Workshop Website
Organizer of the Tutorial on Knowledge Graph Construction / ECAI 2024
Visit Tutorial Website
Organizer of Workshop Series on Semantics and the Web for Transport / 2019-2023
Visit Workshop Website
Organizer of the Tutorial on Knowledge Graph Construction / ESWC 2022
Visit Tutorial Website
Chair of Posters and Demos at SEMANTiCS / 2022
SEMTiCS Website
Organizer of the Tutorial on Knowledge Graph Construction / ISWC 2020
Resources
Organizer of the Tutorial on Knowledge Graph Construction / KG4DI 2022
Resources
Organizer of the Tutorial on Knowledge Graph Construction / ESWC 2019
Resources
Coach of Coaches on Open Summer of Code Spain / 2018-2021
Summer of Code Website

Projects

GALA / 2025-2028

AI Agent Powered by Knowledge Graphs and Large Language Models for Clinical Practice Support
Website (soon)

REOPEN / 2024-2027

Spanish National Project for Enhancing Process Management with KGs and LLMs
Website

PPDS - EU / 2023-2024

Principal scientist of the European Public Procurement Data Space
Website

Datos.Gob / 2021

Spanish national guideline for creating RDF from open data portals using declarative mappings
Guidline & Videos

H2020 - SPRINT / 2019-2021

Semantics for Performant and scalable Interoperability of multimodal Transport
Project Website

Datos 4.0 / 2016-2020

Spanish National project for using semantic web technologies in data management
Project Info

EIT-SNAP / 2016-2020

Transforming transport data into EU compilance with semantic web technologies
Project Website

H2020 GoF4R / 2016-2018

Governance of the Interoperability Framework for Rail and Intermodal Mobility
Project Website

CEF-OASIS / 2016-2018

Open Applications for Semantically Interoperable Services

Alumni

Adrián Martínez Balea
Automatic Constraint Extraction for Knowledge Graphs Using LLMs
BSc Thesis - Computer Science Degree (2024-2025)
Code
Isaac Noya Vázquez
A Benchmark for Learning Ontologies from Relational Databases
BSc Thesis - Computer Science Degree (2024-2025)
Code
Estela Bernárdez Platas
Entity Linking in the Medical Domain
BSc Thesis - Computer Science Degree (2024-2025)

Saray Alvite Sánchez
MPC. A Galician geoportal for citizens
MSc Thesis - Master in Digital Cultural Heritage (2024-2025)

Annual Summaries

Year 2024

Summary of reserach activities in 2024
Resumen (Original in Spanish) Summary (English-LLM version)

Blogposts

Benchmarking the EU PPDS

Performance Evaluation of Transparency Indicators for the EU Public Procurement Data Space
Entry