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The Fight Against COVID-19
By Unleashing the FORCE of the
LOD Cloud Knowledge Graph
Kingsley Idehen
(@kidehen everywhere)
Founder & CEO, OpenLink Software

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1. The COVID-19 Problem
2. The FORCE
3. The LOD Cloud Knowledge Graph
4. Harnessing The FORCE
5. Questions & Answers
Presentation Outline
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The COVID-19 Problem
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The COVID-19 Problem: Data, Information, Knowledge
Global Understanding of this Virus is suboptimal due to shortcomings
related to:
• Measurements (Data)
• Subject Test Count?
• Metrics (Information)
• Infection, Fatality, Recovery Rates
• Insights (Knowledge)
• Curves across Continents, Countries, Provinces, Municipalities
Compounded by Disparate Data, Dashboards, and Data Visualizations!
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The COVID-19 Solution: Loosely-Coupled Data,
Information, Knowledge
Creating Harmonized Data, Information, and Knowledge without the
impedance of Data Wrangling, courtesy of existing Open Standards.
The cost of ignoring Open Standards has always been high, but now it is
a real problem experienced by everyone, courtesy of the COVID-19
pandemic!
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6.
The FORCE Behind The Solution
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The FORCE: Linked Data, Information, Knowledge
Global generation of Data, Information, and
Knowledge Networks at rates that match and
exceed the COVID-19 infection rate, courtesy
of Open Standards.
Existing Network Examples Include:
• Computer Networks (Internet)
• Document Networks (Web)
• Data Networks (Linked Data)
• Knowledge Networks (LOD Cloud
Knowledge Graph)
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8.
Components of The FORCE behind The Solution
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9.
The Hyperlink Abstraction over DNS
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Public Computer Network a/k/a The Internet
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Public Document Network a/k/a The Web
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Public Data Network a/k/a The Linked Open Data Cloud
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Public Knowledge Network - Linked Open Data Cloud Too!
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Linked Open Data Cloud Knowledge Graph for COVID-19
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15.
The LOD Cloud Knowledge Graph
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The LOD Cloud Knowledge Graph
Initialized in 2007, courtesy of two
major bootstrap nodes:
• DBpedia – General Knowledge
from Wikipedia
• Bio2RDF – Healthcare and Life
Sciences Data, Information, and
Knowledge across a spectrum of
databases and knowledge bases.
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Life Sciences Sub-Cloud –
Segment of the LOD Cloud seeded by Bio2RDF
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Harnessing The FORCE
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Progressively Update the LOD Cloud
Knowledge Graph by leveraging
Hyperlinks as powerful “Super Keys”
for harmonized access to Disparate Data
Sources.
Thereby bringing the magic of the World
Wide Web to the fight against COVID-19.
Hyperlinks as Entity, Entity Type,
Entity Relationship Type Identifiers
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Use of Bookmarking interaction
pattern to create and update
Knowledge Graphs —
• Visit a Document of interest
• Click on the a complimentary
Browser Extensions
(or just use a known URL-pattern)
And the following happens
• Entity Extraction
• Entity Identification
• Entity Description
No Data Wrangling Friction!
Use-case – Progressive Knowledge Graph Population
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Generates Linked Open Data from a
wide variety of Data Sources:
• URL-Patterns
• Browser Extensions that generate
required URL-Pattern
• Public SPARQL Query Service
integration exposed via an Endpoint
That includes:
• CSV Documents
• JSON Documents
• KML Documents
• RDF-Turtle, RDF-XML, JSON-LD etc
• Others
URIBurner – A Publicly Access LOD Cloud Knowledge Graph Bridge
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22.
• My COVID-19 Notes
• Data Wrangling and Progressive LOD Cloud Knowledge Graph Enhancement
• What is the Linked Open Data Cloud, and why is it important?
• Simple Linked Data Deployment Tutorial
• What is Small Data, and why is it Important?
• What is the Virtuoso Sponger Middleware about, and why is it important?
• Five Simple Steps to Experience the Power of a Knowledge Graph, using Virtuoso
Additional Information
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• Virtuoso LOD Cloud Knowledge Graph Drivers/Connectors for ODBC, JDBC, ADO.NET
• Virtuoso Installer Download Page
• Virtuoso FREE Evaluation License Download Page
• Virtuoso Blog
• Virtuoso Community Forum
• Virtuoso Home Page
Additional Information -- Contd
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24.
Questions & Answers
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