Tina: You may also find some useful information in this talk that I gave a while back, on using SemWeb technologies - specifically including Apache Jena and Apache Stanbol - in an enterprise setting.
This page links to both the video recording and the slides from the talk. https://allthingsopen.org/talk/semantic-integration-with-apache-jena-and-stanbol/ Phil This message optimized for indexing by NSA PRISM On Wed, Jun 7, 2017 at 10:13 AM, Phillip Rhodes <motley.crue....@gmail.com> wrote: > I would recommend reading the book "The Explorer's Guide to the Semantic Web". > > <https://www.amazon.com/Explorers-Guide-Semantic-Thomas-Passin/dp/1932394206> > > > Phil > > > This message optimized for indexing by NSA PRISM > > > On Wed, Jun 7, 2017 at 8:52 AM, tina sani <tinamadri...@gmail.com> wrote: >> Thank you Colin and David for your detailed answer. >> >> On Wed, Jun 7, 2017 at 3:28 PM, Colin Maudry <co...@maudry.com> wrote: >> >>> Hello Tina, >>> >>> Thank you very much for your interest for the Semantic Web. This mailling >>> list is specifically dedicated to a tool, Apache Jena. It's like asking >>> about astronomy on a list dedicated to a brand of telescopes : it's >>> off-topic. >>> >>> The Wikipedia article about the Semantic Web is a very good start : >>> https://en.wikipedia.org/wiki/Semantic_Web >>> >>> If you're fond off asking humans, I suggest you ask your question to the >>> following list, you will certainly get more answers : >>> http://lists.w3.org/Archives/Public/semantic-web/ >>> >>> Have a nice trip on the paths of the Web of data :) >>> >>> Colin >>> >>> -------- Original Message -------- >>> Subject: Re: Web 3 vs Web 2 >>> Local Time: June 7, 2017 1:25 PM >>> UTC Time: June 7, 2017 11:25 AM >>> From: admo...@gmail.com >>> To: users@jena.apache.org >>> >>> To see the metadata you have to consider the prefix statements that must >>> be made before you can use the triples in your example/ >>> >>> @prefix rdf: http://www.w3.org/1999/02/22-rdf-syntax-ns# >>> >>> click on the hyperlink to follow it. >>> >>> Using this prefix statement adds metadata essential to understanding the >>> triple: >>> Student rdf:type Person >>> >>> rdf:type means: >>> rdf:type a rdf:Property ; >>> rdfs:isDefinedBy <http://www.w3.org/1999/02/22-rdf-syntax-ns#> ; >>> rdfs:label "type" ; >>> rdfs:comment "The subject is an instance of a class." ; >>> rdfs:range rdfs:Class ; >>> rdfs:domain rdfs:Resource . >>> >>> The object “Person” in the triple may also have metadata associated with >>> it. >>> If the prefix: >>> >>> @prefix foaf: http://xmlns.com/foaf/0.1/ >>> >>> is used the metadata associated with foaf:Person is >>> >>> <rdfs:Class rdf:about="http://xmlns.com/foaf/0.1/Person"; >>> rdfs:label="Person" rdfs:comment="A person." >>> vs:term_status="stable"><rdf:type >>> rdf:resource="http://www.w3.org/2002/07/owl#Class"/><owl:equivalentClass >>> rdf:resource="http://schema.org/Person"/><owl:equivalentClass >>> rdf:resource="http://www.w3.org/2000/10/swap/pim/contact#Person"/><!-- >>> <rdfs:subClassOf><owl:Class rdf:about="http://xmlns.com/wordnet/1.6/Person >>> "/></rdfs:subClassOf> >>> --><rdfs:subClassOf><owl:Class rdf:about="http://xmlns.com/foaf/0.1/Agent >>> "/></rdfs:subClassOf><!-- <rdfs:subClassOf><owl:Class rdf:about=" >>> http://xmlns.com/wordnet/1.6/Agent"/></rdfs:subClassOf> >>> --><rdfs:subClassOf><owl:Class rdf:about="http://www.w3.org/ >>> 2003/01/geo/wgs84_pos#SpatialThing" rdfs:label="Spatial >>> Thing"/></rdfs:subClassOf><!-- aside: >>> are spatial things always spatially located? >>> Person includes imaginary people... discuss... >>> --><rdfs:isDefinedBy rdf:resource="http://xmlns.com/foaf/0.1/"/><!-- >>> <owl:disjointWith rdf:resource="http://xmlns.com/foaf/0.1/Document"/> >>> this was a mistake; tattoo'd people, for example. >>> --><owl:disjointWith rdf:resource="http://xmlns.com/foaf/0.1/Organization >>> "/><owl:disjointWith rdf:resource="http://xmlns.com/foaf/0.1/Project >>> "/></rdfs:Class> >>> >>> So you can see even a simple statement like >>> >>> Student rdf:type foaf:Person >>> >>> contains a huge amount of metadata that can be located and used by a >>> machine! >>> >>> On 7/6/17, 1:07 am, "tina sani" <tinamadri...@gmail.com> wrote: >>> >>> For example, there is an rdf document about a student. >>> >>> Student rdf:type Person. Student hasName name. Student hasAdress adress >>> >>> Student study Course. >>> >>> Where is the meta data here. How machines understand this data. >>>
