Semantic AI in Knowledge Graphs

1Leveraging Semantic Knowledge Graphs in Educational Recommenders to Address the Cold-Start Problem

Sahan Bulathwela, María Pérez-Ortiz, Emine Yilmaz, and John Shawe-Taylor

Centre for Artificial Intelligence, University College London, UK

DOI: 10.1201/9781003313267-1

Contents

• 1.1 Introduction

• 1.2 Related Work

  • 1.2.1 Wikipedia Concept-Based User Modeling

  • 1.2.2 Representations from Graphs

• 1.3 Methodology

  • 1.3.1 Problem Formulation

  • 1.3.2 Semantic TrueLearn

    • 1.3.2.1 Incorporating Semantic Relatedness between Concepts/KCs

    • 1.3.2.2 The Univariate Formulation

    • 1.3.2.3 The Multivariate Formulation

• 1.4 Experiments and Results

  • 1.4.1 Semantic Relatedness Metric (SR Metric)

  • 1.4.2 Models

  • 1.4.3 Data

  • 1.4.4 Experimental Design

    • 1.4.4.1 Impact of Semantic ...