Interesting read: https://9to5mac.com/2019/04/17/apple-qualcomm-and-intel/
Graphical diagram explaining players involved and their roles.
Showing posts with label Graph data. Show all posts
Showing posts with label Graph data. Show all posts
April 17, 2019
Semantic Triple in RDF
Composed of:
Subject -> Predicate -> Object
A subject: which is a URI (e.g., a "web address") that represents something.
A predicate: which is another URI that represents a certain property of the subject.
An object: which can be a URI or a literal (a string) that is related to the subject
Example:
Bob knows John
http://example.name#BobSmith12 http://xmlns.com/foaf/0.1/knows http://example.name#JohnDoe34
Ref: https://data-gov.tw.rpi.edu/wiki/A_crash_course_in_SPARQL
https://en.wikipedia.org/wiki/Semantic_triple
John's age 70
http://example.name#JohnDoe34 http://xmlns.com/foaf/0.1/age 70
We can infer from the above 2 statements that Bob know somebody who is 70 years old
Subject -> Predicate -> Object
A subject: which is a URI (e.g., a "web address") that represents something.
A predicate: which is another URI that represents a certain property of the subject.
An object: which can be a URI or a literal (a string) that is related to the subject
Example:
Bob knows John
http://example.name#BobSmith12 http://xmlns.com/foaf/0.1/knows http://example.name#JohnDoe34
Ref: https://data-gov.tw.rpi.edu/wiki/A_crash_course_in_SPARQL
https://en.wikipedia.org/wiki/Semantic_triple
John's age 70
http://example.name#JohnDoe34 http://xmlns.com/foaf/0.1/age 70
We can infer from the above 2 statements that Bob know somebody who is 70 years old
April 16, 2019
Apache Jena RDF API
Abstractions
Resource: representing an RDF resource (whether named with a URI or anonymous)
Literal: for data values (numbers, strings, dates, etc)
Statement: representing an RDF triple and
Model: representing the whole graph
Ref: https://jena.apache.org/about_jena/architecture.html
Resource: representing an RDF resource (whether named with a URI or anonymous)
Literal: for data values (numbers, strings, dates, etc)
Statement: representing an RDF triple and
Model: representing the whole graph
Ref: https://jena.apache.org/about_jena/architecture.html
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