Graphing Your Data Or,How I Stopped Worrying and Love the Triple Store

Agenda

What is Linked Data

RDF

Virtually Mapping Tuples to Triples

Some Problems...

How to handle data reuse?

How consistent is the data definition/model?

How to join data across multiple data sources?

Alternative Solutions...

Data Governance

Master Data Management

Data Integration/Transformation

Alternative Problems!

Data Governance and MDM can take years before value is shown

Data Transformation can be expensive (time, resources) when moving to a data warehouse

Semantic Web to the Rescue

Translate data into plain-language

Follow standard vocabularies (and create your own)

Provides data in format that is:Secure

Human and Machine readable

Web-ready (it's the start of Web 3.0)

Semantic Web In Context

Will not replace the data warehouseIntended for exploratory research

Ideal for researchers and data analysts

An Example...

An Example...

How the Data Formats

123 is a vocab:Student

456 is a vocab:Teacher

789 is a vocab:Class

123 vocab:hasFirstName Bob

456 vocab:hasFirstName Sarah

789 vocab:isTaughtBy 456

123 vocab:isRegistered 789

RDF/XML

Turtle

Triples

Converting Your Data

ETLMany tools will support XML data conversion

DatabaseSome databases will port data into XML format

Mapping ToolReal-time conversion layer between RDBMS and Triples

Using Protg

Stanford ontology modeling tool

Ontop plugin provides mapping layer

Fastest, most agile way to map data into triples.

Links

Ontop - http://ontop.inf.unibz.it/

Protege - http://protege.stanford.edu/products.php

Virtuoso - http://virtuoso.openlinksw.com/

RDF/XML Tutorial- http://www.w3schools.com/xml/xml_rdf.asp