no code implementations • 11 Oct 2023 • Pedro Giesteira Cotovio, Ernesto Jimenez-Ruiz, Catia Pesquita
Knowledge Graphs (KG) are the backbone of many data-intensive applications since they can represent data coupled with its meaning and context.
1 code implementation • 28 Oct 2022 • Erik Bryhn Myklebust, Ernesto Jimenez-Ruiz, Jiaoyan Chen, Raoul Wolf, Knut Erik Tollefsen
An effect prediction model, with and without background knowledge, was used to predict mean adverse biological effect concentration of chemicals as a prototypical type of stressors.
2 code implementations • 20 Feb 2022 • Jiaoyan Chen, Yuan He, Yuxia Geng, Ernesto Jimenez-Ruiz, Hang Dong, Ian Horrocks
Automating ontology construction and curation is an important but challenging task in knowledge engineering and artificial intelligence.
no code implementations • ISWC 2021 • Vincenzo Cutrona, Jiaoyan Chen, Vasilis Efthymiou, Oktie Hassanzadeh, Ernesto Jimenez-Ruiz, Juan Sequeda, Kavitha Srinivas, Nora Abdelmageed
SemTab 2021 was the third edition of the Semantic Web Challenge on Tabular Data to Knowledge Graph Matching, successfully collocated with the 20th International Semantic Web Conference (ISWC) and the 16th Ontology Matching (OM) Workshop.
1 code implementation • International Semantic Web Conference (ISWC) 2020 • Vincenzo Cutrona, Federico Bianchi, Ernesto Jimenez-Ruiz, Matteo Palmonari
Table annotation is a key task to improve querying the Web and support the Knowledge Graph population from legacy sources (tables).
1 code implementation • 30 Sep 2020 • Jiaoyan Chen, Pan Hu, Ernesto Jimenez-Ruiz, Ole Magnus Holter, Denvar Antonyrajah, Ian Horrocks
Semantic embedding of knowledge graphs has been widely studied and used for prediction and statistical analysis tasks across various domains such as Natural Language Processing and the Semantic Web.
1 code implementation • 19 Jan 2020 • Jiaoyan Chen, Xi Chen, Ian Horrocks, Ernesto Jimenez-Ruiz, Erik B. Myklebus
The usefulness and usability of knowledge bases (KBs) is often limited by quality issues.
4 code implementations • 27 Aug 2019 • Erik Bryhn Myklebust, Ernesto Jimenez-Ruiz, Jiaoyan Chen, Raoul Wolf, Knut Erik Tollefsen
Ecological risk assessment requires large amounts of chemical effect data from laboratory experiments.
4 code implementations • 2 Jul 2019 • Erik Bryhn Myklebust, Ernesto Jimenez-Ruiz, Jiaoyan Chen, Raoul Wolf, Knut Erik Tollefsen
A knowledge graph has been constructed from publicly available data sets, including a species taxonomy and chemical classification and similarity.
2 code implementations • 26 Jun 2019 • Jiaoyan Chen, Ernesto Jimenez-Ruiz, Ian Horrocks
Ontology-based knowledge bases (KBs) like DBpedia are very valuable resources, but their usefulness and usability is limited by various quality issues.
1 code implementation • 30 May 2019 • Jiaoyan Chen, Ernesto Jimenez-Ruiz, Ian Horrocks, Charles Sutton
The usefulness of tabular data such as web tables critically depends on understanding their semantics.
Ranked #1 on Column Type Annotation on T2Dv2
no code implementations • 20 Jan 2019 • Yuxia Geng, Jiaoyan Chen, Ernesto Jimenez-Ruiz, Huajun Chen
Transfer learning which aims at utilizing knowledge learned from one problem (source domain) to solve another different but related problem (target domain) has attracted wide research attentions.
1 code implementation • 4 Nov 2018 • Jiaoyan Chen, Ernesto Jimenez-Ruiz, Ian Horrocks, Charles Sutton
Automatically annotating column types with knowledge base (KB) concepts is a critical task to gain a basic understanding of web tables.
Ranked #1 on Column Type Annotation on T2Dv2 (F1 (%) metric)
1 code implementation • 31 May 2018 • Ernesto Jimenez-Ruiz, Asan Agibetov, Matthias Samwald, Valerie Cross
Large ontologies still pose serious challenges to state-of-the-art ontology alignment systems.