SESAM4 - A guide to semantics in the Linked Open Data cloud, Robert HP Engels, ESIS Norge

Project OverviewSESAM4 – Verdikt conference 2010 © SESAM4 Consortium 2009

NFR Verdikt Project no 2342453 Semantic Technology

© SESAM4 Consortium 2009

SESAM4A guide to semantics in the Linked Open Data cloud

Presented byRobert HP Engelsproject leader

Semi-semantic Models for Cross-Sector Portals


agenda

Project overview

Key facts, partners & main goals

The world around us

Developments & trends

What is needed?

What's in it for you?

Project deliveries: Software, Business processes, Tools & experiences


Project Key Facts

project start april 2008 – ending march 2011

focus on open standards and freeware

results shown in different application domains

funded by NFR with ca 30% funding

10 partners


Consortium Partners...


What are the challenges? ...

Genuine interaction & communication between content creators, owners and consumers.

Globally Identifiable Information on Objects

Globally Identifiable Statements about Objects and other statements

Understanding ST's implications,

Transforming your business and people,

Adapting your business model!


..and what are the SESAM4 Objectives?

To develop open standards and tools that will lower the barriers of entry in the area of semantically enhanced portals and services and make it possible for small and medium sized companies and organizations to exploit semantic systems.

To develop methods, models and procedures for semi-automatic generation of ontologies from unstructured text indexes for use as background variables for semantic annotations.

To improve, particularly in the area of scalability, current methods for text mining and indexing.

To develop methods, models and procedures for integrating content management system based on RDF with content management systems based on Topic Maps and for semantic integration and coordination of large multi lingual content management systems

To verify the functionality and scalability of these semi-automatically generated ontologies to integrate multiple large scale content management systems


Open Source

It will deliver Open Source software

Best Practices

Based upon experiences from the community and project-owned reference implementations

Community involvement

Where possible, the projects' results will be available for and discussed with relevant communities.

...SESAM4 is an Open Project


project architecture


SESAM4's five pilars

Use Case: Company Information

Use Case: Tourism

WP R&D: ontology and semantic lifting

WP Technology: Semantic Web and ISO stacks

WP Best Practices: steps into the “semantic” future


some trends


Are we able to imagine where it goes?


Linked Open Data early 2007Linked Open Data Middle 2007Linked Open Data 2008


Pillar Technology: SUBLIMASemantic Web Stack

Open Source stack

APACHE/Cocoon

SPARQL query dispatching

Pellet reasoning

Virtuoso RDF stack (Jena before)

Stanford Protégé for ontology modeling

Available now

file:///home/pptfactory/temp/20101112084750/pictures/sublima_architecture.jpg


Pillar Technology: Topic Maps

Stack built on COMPASS

directed towards universal access, search & navigation

implemented in Java

generic framework (engine can be plugged in)

Wandora - wandora.org

TinyTiM - sourceforgeTM++ - sourceforge

connectors written with TMAPI

first version april '09


Pillar: Ontology & Semantic Lifting


Lifting structured data – SemEx app


rdf:Class

rdf:Class

motorcycle

holidays

rdf:type rdf:type

weaklyRelatedTo

MC_001

rdf:type

hasColor “black”

“long”

hasSize

Sesam4backgroundknowledge

Sesam4domain

knowledge

rdf:Class

rdf:Class

motorcycle holidays

rdf:type rdf:type

weaklyRelatedTo

MC_001

rdf:type

hasColor

“black”

“long”

hasSize


Tourism demonstrators

“On Board”

Fjord1, digital signage

“What's On”

iPhone, map, events & user interests

“Digitur”

Digital tour Bergen, POI & shared user created content

“Place Companion”

Trip advisor, user incentives, shared user created content, POI


What is “On board”?

Information and entertainment system for travellers with aim to give passengers a more meaningful travel


Technology 5S e q u e n c e d i a g r a m O n b o a r d

C l i e n t

L o c a l r e s o u r c e s

S e s a m 4r e p o s i t o r y

O r i g i n a lE x t . r e s o u r c e s

R e p o s o t o r y

T e l l u s F y l k e s a r k i v e t

O n B o r d O n b o a r d O n b o a r d

1

D B p e d i a F l i c k r

G e t l o c a l i s a t i o n G e t i n f o r m a t i o n w i t h h i g h e s t p r i o r i t y S h o w r o u t e i n f o r m a t i o n a b o u t B a l e s t r a n d

{ G e t r e l a t e d c o n t e n t }

{ S e l e c t r o u t e }

2 3 4

L i s t o f c o n t e n t a l o n g t h e r o u t e

R u t e i n f o . n e t

D B

L o c a l c o p y

N R K

{ G e t R S S - f e e d s }


How does it work?

KL 14.06

.....WgsPos a <http://www.w3.org/2003/01/geo/wgs84_pos#SpatialThing> ; wgs84:lat_long «7864376,23898”

time_slot#737874 a ob:TimeSlot ob:aNewsItem dct:description nrk:#3487 ob:aslotStart «00» ; ob:slotEnd «03» .

time_slot#737874 a ob:TimeSlot ob:aNewsItem dct:description nrk:#3487 ob:aslotStart «03» ; ob:slotEnd «07» .

.....

http://www.w3.org/2003/01


Computas Place Companion

Finding relevant information near me, right now!Infrastructure for real-time event dataDemonstration through mobile apps

Concept

schemes

andontologi

es

Event store(Computas LOD server)

Tellus

adaptorsForsquar

eWikipedia …

Android

Geo-location

iPhone

ReverseGeo-

location

QueryWeb services

(REST)

intention and locationaware clients

services

Interestresolver


LOD & Company information aggregation


semantically lifted data sources in Sesam4

Tellus – POI/events

Fylkesarkivene – steder

DBPedia – POI/personer/steder

FourSquare – tweets/evaluations

(/w Semicolon): BRREG

Under construction:

Popsenteret

Artists

Venues

Wish list

Stedsnavn/GeoLocation

Norwegian “Public Persons”


Pillar Best Practices or “the process to introduce semantics”


Wrap up on SESAM4

Sesam4 is:

an Open Project

aimed at Inter-operability through Semantic Technologies

Supporting Linked Open Data

What does Sesam4 for you?

Trends, experiences and ideas in reference implementations

Technology for you to use: stacks to get started, lifting existing data for you & let you lift your own data (for internal use?)

Best Practices & Guidelines for you to “semanticize your environment” (processes, data, integration)


Project Leader

Robert H.P. Engels

[email protected]

Tel: +47 – 99544481

Title:NR-logo_grunnform_rgb.eps Creator:Adobe Illustrator(R) 11 CreationDate:12/19/2004 LanguageLevel:2

www.sesam4.net

mailto:[email protected]

SESAM4 - A guide to semantics in the Linked Open Data cloud, Robert HP Engels, ESIS Norge

Education

Transcript of SESAM4 - A guide to semantics in the Linked Open Data cloud, Robert HP Engels, ESIS Norge