Ontology-driven data system creation software

Ontology-driven data system creation software Lloyd Rutledge

TouW-dag 21 maart 2015

Semantic Web in a nutshell •

A unifiable world-wide database on the World Wide Web –

Graph of node-edge triples is like one sparse table

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URI’s as universal identifiers

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Open World Assumption –

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No unique naming assumption –

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Multiple URI’s for the same thing

Much inferencing –

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Current data collection may be incomplete

Helps handle incomplete data

Ontologies –

Define data structure and inferencing

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Fresnel Forms plugin for Protégé

Fresnel Forms plugin for Protégé •

Protégé: Top tool for editing a Semantic Web ontology

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Fresnel Forms plugin lets user design an interface

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Generates default system interface for ontology

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GUI-editor for interface specification

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Fresnel is standard for semantic browser interface specification

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Interface export to semantic wiki

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Interface is browsing and form-based annotation

Educational context –

Developed by two ABI projects, some functionality from a third

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Principles from MDD and Business Rules

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Protégé used in Semantic Web and MSC Rule based Design

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Potential use by Masters Thesis students

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http://lod-cloud.net/

Linked Data Cloud, 2007

Great contribution, but can’t it be easier? •

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Model-driven development –

Start with ontology

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Automatically generate default interface from it

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Efficiently tailor that interface

Form-based annotation –

Instead of text editing template parameter code

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Guides user to enter field values that fit ontology

Direct export to Semantic Web

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ABI 29 – MDD Protégé -OWL

• Team – Thomas Brenninkmeijer, Protégé guru – Tim Zwanenberg, XForms/Fresnel guru – Harold Pootjes, supervisor

• Bijdrage – Eerste versie plugin voor Protégé – Default en GUI voor Fresnel •

KLAAR! - Augustus 2014

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ABI 30 –Protégé Forms

• Team – Alex Mekkering, Protégé guru – Teun Theunissen, Fresnel guru – Joop van de Heijning, wiki guru – Rik Bos, supervisor

• Bijdrage – Nu ook export naar wiki – Default en GUI functies uitbreiden – Fresnel ontologie uitbreiden

• Verwacht juni 2015 Pagina 15

Fresnel Forms plugin for Protégé

Generating the default interface

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Default interface for an ontology Ontology

Interface

Domain

Property-box assignment

Class range

Autocompletion Wiki link to form for page creation

Data type range

Box displays Entry fields

Cardinality <=> 1

Mandatory or optional List or single

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Ontology

Fresnel

Whole

:allProperties :hideProperties

owl:Thing owl:Ontology rdfs:isDefinedBy

:label

Pagename

CSS

:subClassOf :subPropertyOf

Fresnel not automatically generated from ontology

Class

MW

, Label on form & template OWF

Page

owl:ObjectProperty owl:DataProperty owl:AnnotationProperty

String

Literal W

rdfs:

:domain

:sub-

:Class

is

Wiki page name namespace has levels

Ontology (2ary level) Source URI (2ary level) New sublevel

OWF

Labels for property and class on templates and forms

OWF

Shows description Adapts language to user

Mouseover on label , content on page Selection of text display from user for label, comment, etc. SF delimiter= Additional content OWF Put text: before, after, between, starting, ending, if empty MW Psuedo-classes Link style Whole table :containerStyle Multiple :resourceStyle For template :propertyStyle Single SF and form tabel :labelStyle Left SF :valueStyle Right , class= for forms MW [[Category:]] :member in :showProperties #arraymap/list SF SMW Property: MW MW Category:... , also: [[Category:...]] in template MW :Lens Template:... (if domain) SF Form:... (if domain) SF :classLensDomain [[Has default form::...]] on category OWF Check box to assign classes if not domain MW [[Category:...]] on category page OWF Nested form access SMW [[Subproperty of::...]] on property page OWF Grouped together on forms and templates by default :showProperties OWF Asssign property in template :hideProperties UnOWF :showProperties rdf:List Sort properties in template :mergeProperties SF Template row queries multiple properties for one display :alternateProperties SF autocomplete on category=... SF [[Has default form::...]] on property Page

rdf:

:type Containers :Property

1

Secondary prefix for class and property page names Namespace (2ary level) Form and template for general properties from ... Top level form and template

Loaded as part of ontology to process OWF Link from page for property or category

MW

rdfs:seeAlso Fragment identifier rdfs:label skos:prefLabel rdfs:comment xml:lang Default Frensel Delimiters Cascading Fresnel

Default w/o :range

Ontology URI's used in RDF export

OWF

CSS

Text

owl:imports

Each gets own template and form OWF for domainless properties

Description

Cell Row

Foundation

URIs

Identifier Namespace Prefix

MediaWiki and extensions SMW [[EquivalentURI::...]] SMW OWF [[Imported from::...]] Identifier/prefix specs MW Wiki page name prefixes

Wiki page is member of given category User can enter sorted list as comma-delimited Property Recognized in wiki data Category system as Data display table/template Form for data entry Clicking to new pages leads to given form for data entry Wiki and queries recognize as subcategory Queries using property also recognize superproperties Properties in template and forms are

Placed Removed Sorted

Values from muliiple properties display as if from one Pull down list shows current pages in target class(es) Clicking to new pages leads to given form for data entry Entered as wiki page name Links to wiki page Entered and displayed as unlinked string

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http://en.wikipedia.org/wiki/Fresnel_lens

Fresnel: RDF interface in RDF •

Specifies how RDF is display

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Separates style from content: like CSS for XML

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Also in RDF

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Supported by multiple semantic browsers such as Longwell

http://www.w3.org/2005/04/fresnel-info/manual/

http://dig.csail.mit.edu/2006/Talks/0724-fresnel/#%2814%29

Domain-independent default for browser (Longwell)

With (handmade) Fresnel style

Wikipedia

Fresnel Forms, default

Default browser •

Property order not normalized

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Property display for type

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No tailored CSS

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Simple two-column table

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Default Form •

Order same as browser

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Shows all properties –

Browser only those with values

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Input fields special for data types

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Cardinality min/max =1

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Optional or mandatory

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List or single

Autocompletion to class members

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Falco Paul’s BPMIT Master’s thesis •

What is best default property order?

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Compares algorithms for sorting ontology properties in browsers

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Wikipedia infoboxes are truth set

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Simple heuristic outperforms various text-processing algorithms

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An ABI student’s research context assignment will apply this to Fresnel Forms

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Resulting Fresnel Forms makes a better default interface

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Especially for Wikipedia, albeit with chicken-egg paradox

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Editing the interface with Fresnel Forms

Wikipedia

Fresnel Forms, edited

Edited browser •

Property order easy to change

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CSS –

Fits in Fresnel standard

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