Blar i NIVA Open Access Archive på forfatter "Chen, Jiaoyan"
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Correcting Knowledge Base Assertions
Chen, Jiaoyan; Chen, Xi; Horrocks, Ian; Jimenez-Ruiz, Ernesto; Myklebust, Erik Bryhn (Chapter, 2020)The usefulness and usability of knowledge bases (KBs) is often limited by quality issues. One common issue is the presence of erroneous assertions, often caused by lexical or semantic confusion. We study the problem of ... -
Embedding OWL ontologies with OWL2Vec
Holter, Ole Magnus; Myklebust, Erik Bryhn; Chen, Jiaoyan; Jimenez-Ruiz, Ernesto (Journal article; Peer reviewed, 2019)In this paper, we present a preliminary study to compute embeddings for OWL 2 ontologies by projecting the ontology axioms into a graph and performing (random) walks over the ontology graph to create a corpus of sentences. ... -
Knowledge graph embedding for ecotoxicological effect prediction
Myklebust, Erik Bryhn; Jimenez-Ruiz, Ernesto; Chen, Jiaoyan; Wolf, Raoul; Tollefsen, Knut-Erik (Journal article; Peer reviewed, 2019)Exploring the effects of a chemical compound on a species takes a considerable experimental effort. Appropriate methods for estimating and suggesting new effects can dramatically reduce the work needed to be done by a ...