Search Results for author: Mitchell Joblin

Found 10 papers, 4 papers with code

On Calibration of Graph Neural Networks for Node Classification

1 code implementation3 Jun 2022 Tong Liu, Yushan Liu, Marcel Hildebrandt, Mitchell Joblin, Hang Li, Volker Tresp

We investigate the calibration of graph neural networks for node classification, study the effect of existing post-processing calibration methods, and analyze the influence of model capacity, graph density, and a new loss function on calibration.

Classification Link Prediction +1

TLogic: Temporal Logical Rules for Explainable Link Forecasting on Temporal Knowledge Graphs

1 code implementation15 Dec 2021 Yushan Liu, Yunpu Ma, Marcel Hildebrandt, Mitchell Joblin, Volker Tresp

Conventional static knowledge graphs model entities in relational data as nodes, connected by edges of specific relation types.

Knowledge Graphs Link Prediction

Combining Sub-Symbolic and Symbolic Methods for Explainability

no code implementations3 Dec 2021 Anna Himmelhuber, Stephan Grimm, Sonja Zillner, Mitchell Joblin, Martin Ringsquandl, Thomas Runkler

Similarly to other connectionist models, Graph Neural Networks (GNNs) lack transparency in their decision-making.

Decision Making

Demystifying Graph Neural Network Explanations

no code implementations25 Nov 2021 Anna Himmelhuber, Mitchell Joblin, Martin Ringsquandl, Thomas Runkler

Graph neural networks (GNNs) are quickly becoming the standard approach for learning on graph structured data across several domains, but they lack transparency in their decision-making.

Decision Making Synthetic Data Generation

Generating Table Vector Representations

no code implementations28 Oct 2021 Aneta Koleva, Martin Ringsquandl, Mitchell Joblin, Volker Tresp

High-quality Web tables are rich sources of information that can be used to populate Knowledge Graphs (KG).

Knowledge Graphs Transfer Learning

Power to the Relational Inductive Bias: Graph Neural Networks in Electrical Power Grids

no code implementations8 Sep 2021 Martin Ringsquandl, Houssem Sellami, Marcel Hildebrandt, Dagmar Beyer, Sylwia Henselmeyer, Sebastian Weber, Mitchell Joblin

The application of graph neural networks (GNNs) to the domain of electrical power grids has high potential impact on smart grid monitoring.

Inductive Bias

Debate Dynamics for Human-comprehensible Fact-checking on Knowledge Graphs

no code implementations9 Jan 2020 Marcel Hildebrandt, Jorge Andres Quintero Serna, Yunpu Ma, Martin Ringsquandl, Mitchell Joblin, Volker Tresp

The underlying idea is to frame the task of triple classification as a debate game between two reinforcement learning agents which extract arguments -- paths in the knowledge graph -- with the goal to justify the fact being true (thesis) or the fact being false (antithesis), respectively.

Common Sense Reasoning Fact Checking +3

Reasoning on Knowledge Graphs with Debate Dynamics

2 code implementations2 Jan 2020 Marcel Hildebrandt, Jorge Andres Quintero Serna, Yunpu Ma, Martin Ringsquandl, Mitchell Joblin, Volker Tresp

The main idea is to frame the task of triple classification as a debate game between two reinforcement learning agents which extract arguments -- paths in the knowledge graph -- with the goal to promote the fact being true (thesis) or the fact being false (antithesis), respectively.

General Classification Knowledge Graphs +2

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