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SemWeb2017-L07 Semantic Reasoning
Lecture 07 (20/02/2017): Semantic Reasoning: Automated Reasoning; OWL Semantics and Profiles - by Fulvio Corno
"Semantic Web" course for PhD students, year 2017
PhD in Computer and Control Engineering, Politecnico di Torino
About the course: https://elite.polito.it/teaching/current-courses/360-01rrdiu-semantic-web -
The Semantic Web: The Inside Story - Jim Hendler
Summer School in cognitive Science: Web Science and the Mind
Institut des sciences cognitives, UQAM, Montréal, Canada
http://www.summer14.isc.uqam.ca/
http://www.isc.uqam.ca/
JIM HENDLER, Rensselaer Polytechnic Institute, Department of Computer Science
The Semantic Web: The Inside Story
OVERVIEW: In this talk I look at the Semantic Web idea of adding knowledge to the Web in ways compatible with machine processing. Emerging in the late 90s, and growing since then,the languages , usage and uptake of semantic technologies has been increasing. I'll discuss the genesis of this idea, some key steps in its history, and current usage. I also proposes challenges: Having far surpassed the original vision, how do we continue to use and grow the semantic web? -
The Semantic Web - An Overview
Find out what the Semantic Web is all about and how it might be structured. How can we make computers smarter so we can get the information we need in context?
From the online Web Services class offered by Computer Careers at South Central College located in North Mankato, MN 56003 USA. http://cc.SouthCentral.edu -
Private video
This video is private. -
Using DBPedia
A brief video on DBPedia and SparQL. Demonstrates how to query DBPedia for useful/interesting questions.
The SPARQL query demonstrated in the video:
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PREFIX dbpedia0: <http://dbpedia.org/ontology/>
PREFIX dbpedia2: <http://dbpedia.org/property/>
SELECT ?body ?magnitude WHERE {
?body a dbpedia0:CelestialBody.
?body dbpedia2:appmagV ?magnitude.
FILTER (?magnitude < 6)
}
ORDER BY ?magnitude
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Useful DBPedia Links as described in the video:
DBPedia's Home Page - http://dbpedia.org/
Vega's Wikipedia Page - http://en.wikipedia.org/wiki/Vega/
Vega's DBPedia Page - http://dbpedia.org/page/Vega/
CelestialBody Ontology Mapping - http://mappings.dbpedia.org/server/ontology/classes/CelestialBody/
DBPedia SPARQL Explorer - http://dbpedia.org/snorqll/ -
Virtuoso RDF Views over RDBMS Data Sources -- Part 1
Demonstrates the use of an HTML based Wizard for generating & deploying RDF based Linked Data from a relational database. -
Virtuoso RDF Views over RDBMS Data Sources -- Part 2
Demonstrates the powerful record navigation that the RDF graph model accords, courtesy of HTTP URIs as keys for RDBMS table records. -
Wikipedia co-founder: I no longer trust the website I created
Freddie Sayers meets Larry Sanger.
Listen to the podcast version: https://shows.acast.com/lockdowntv-with-freddie-sayers/larry-sanger
Read the full article here: https://unherd.com/thepost/wikipedia-co-founder-i-no-longer-trust-the-website-i-created/
Chances are, if you’ve ever been on the internet, you’ve visited Wikipedia. It is the world’s fifth largest website, pulling in an estimated 6.1 billion followers per month and serves as a cheat sheet for almost any topic in the world. So great is the online encyclopaedia’s influence is so great that it is the biggest and “most read reference work in history”, with as many as 56 million editions.
But the truth about this supposedly neutral purveyor of information is a little more complex. Historically, Wikipedia has been written and monitored by a community of volunteers who collaborated and contested competing claims with one another. In the words of Wikipedia’s co-founder, Larry Sanger who spoke to Freddie Sayers on LockdownTV, these volunteers would “battle it out”.
This battle of ideas on Wikipedia’s platform formed a crucial part of the encyclopaedia’s commitment to neutrality, which according to Sanger, was abandoned after 2009. In the years since, on issues ranging from Covid to Joe Biden, it has become increasingly partisan, primarily espousing an establishment viewpoint that increasingly represents "propaganda". This, says Sanger, is why he left the site in 2007, describing it as “broken beyond repair”.
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