Search Results for author: Frank van Harmelen

Found 10 papers, 3 papers with code

Towards Semantically Enriched Embeddings for Knowledge Graph Completion

no code implementations31 Jul 2023 Mehwish Alam, Frank van Harmelen, Maribel Acosta

Most of the current algorithms consider a KG as a multidirectional labeled graph and lack the ability to capture the semantics underlying the schematic information.

Inductive Link Prediction Knowledge Graph Completion +1

Refining neural network predictions using background knowledge

1 code implementation10 Jun 2022 Alessandro Daniele, Emile van Krieken, Luciano Serafini, Frank van Harmelen

Using a new algorithm called Iterative Local Refinement (ILR), we combine refinement functions to find refined predictions for logical formulas of any complexity.

Modular Design Patterns for Hybrid Learning and Reasoning Systems: a taxonomy, patterns and use cases

no code implementations23 Feb 2021 Michael van Bekkum, Maaike de Boer, Frank van Harmelen, André Meyer-Vitali, Annette ten Teije

In this paper we analyse a large body of recent literature and we propose a set of modular design patterns for such hybrid, neuro-symbolic systems.

Analyzing Differentiable Fuzzy Implications

no code implementations4 Jun 2020 Emile van Krieken, Erman Acar, Frank van Harmelen

In this paper, we investigate how implications from the fuzzy logic literature behave in a differentiable setting.

Weakly-supervised Learning

Analyzing Differentiable Fuzzy Logic Operators

1 code implementation14 Feb 2020 Emile van Krieken, Erman Acar, Frank van Harmelen

Finally, we empirically show that it is possible to use Differentiable Fuzzy Logics for semi-supervised learning, and compare how different operators behave in practice.

Weakly-supervised Learning

Semi-Supervised Learning using Differentiable Reasoning

1 code implementation13 Aug 2019 Emile van Krieken, Erman Acar, Frank van Harmelen

We introduce Differentiable Reasoning (DR), a novel semi-supervised learning technique which uses relational background knowledge to benefit from unlabeled data.

Reinforcement Learning for Personalized Dialogue Management

no code implementations1 Aug 2019 Floris den Hengst, Mark Hoogendoorn, Frank van Harmelen, Joost Bosman

Reinforcement Learning methods that optimize dialogue policies have seen successes in past years and have recently been extended into methods that personalize the dialogue, e. g. take the personal context of users into account.

Dialogue Management Management +3

The sameAs Problem: A Survey on Identity Management in the Web of Data

no code implementations24 Jul 2019 Joe Raad, Nathalie Pernelle, Fatiha Saïs, Wouter Beek, Frank van Harmelen

In a decentralised knowledge representation system such as the Web of Data, it is common and indeed desirable for different knowledge graphs to overlap.

Knowledge Graphs Management

Observing LOD using Equivalent Set Graphs: it is mostly flat and sparsely linked

no code implementations19 Jun 2019 Luigi Asprino, Wouter Beek, Paolo Ciancarini, Frank van Harmelen, Valentina Presutti

This paper presents an empirical study aiming at understanding the modeling style and the overall semantic structure of Linked Open Data.

Knowledge Graphs

A Boxology of Design Patterns for Hybrid Learning and Reasoning Systems

no code implementations29 May 2019 Frank van Harmelen, Annette ten Teije

We propose a set of compositional design patterns to describe a large variety of systems that combine statistical techniques from machine learning with symbolic techniques from knowledge representation.

BIG-bench Machine Learning

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