Reasoning in Knowledge Graphs: An Embeddings Spotlight

Posted on: Fri, 05/29/2020 - 10:38 By: valentina.janev

In this lecture, we introduce the aspect of reasoning in Knowledge Graphs. We give a broad overview focusing on the multitude of reasoning techniques: spanning logic-based reasoning, embedding-based reasoning, neural network-based reasoning, etc. In particular, we discuss three dimensions of reasoning in Knowledge Graphs. Complementing these dimensions, we will structure our exploration based on a pragmatic view of reasoning tasks and families of reasoning tasks: reasoning for knowledge integration, knowledge discovery and application services.
 

Extraction for Knowledge Graphs

Posted on: Mon, 12/24/2018 - 16:29 By: valentina.janev

This module will discuss the topic of extraction for Knowledge Graphs. We will focus on web data extraction in this module. Web data extraction is essential to make information available on the web accessible and usable by Knowledge Graphs. We provide a thorough introduction to the topic. This will feature both Oxford’s Vadalog and OXPath systems.

 

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Introduction to Knowledge Graphs

Posted on: Mon, 12/24/2018 - 16:27 By: valentina.janev

Knowledge Graphs (KGs) are one of the key trends among the next wave of technologies. Many defnitions exist of what a Knowledge Graph is, and in this chapter, we are going to take the position that precisely in the multitude of definitions lies one of the strengths of the area. We will choose a particular perspective, which we will call the layered perspective and three views on Knowledge Graphs:

  • KGs as Knowledge Representation Tools
  • KGs as Knowledge Management Systems
  • KGs as Knowledge Application Services
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