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• W3201736551 abstract "Knowledge graph (KG) embedding models have emerged as powerful means for KG completion. To learn the representation of KGs, entities and relations are projected in a low-dimensional vector space so that not only existing triples in the KG are preserved but also new triples can be predicted. Embedding models might learn a good representation of the input KG, but due to the nature of machine learning approaches, they often lose the semantics of entities and relations, which might lead to nonsensical predictions. To address this issue we propose to improve the accuracy of embeddings using ontological reasoning. More specifically, we present a novel iterative approach ReasonKGE that identifies dynamically via symbolic reasoning inconsistent predictions produced by a given embedding model and feeds them as negative samples for retraining this model. In order to address the scalability problem that arises when integrating ontological reasoning into the training process, we propose an advanced technique to generalize the inconsistent predictions to other semantically similar negative samples during retraining. Experimental results demonstrate the improvements in accuracy of facts produced by our method compared to the state-of-the-art." @default.
• W3201736551 created "2021-10-11" @default.
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• W3201736551 date "2021-01-01" @default.
• W3201736551 modified "2023-09-23" @default.
• W3201736551 title "Improving Knowledge Graph Embeddings with Ontological Reasoning" @default.
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• W3201736551 doi "https://doi.org/10.1007/978-3-030-88361-4_24" @default.
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