interval – knowledge nets humboldt-universität zu berlin freie universität berlin

InterVal – Knowledge Nets

Humboldt-Universität zu Berlin

Freie Universität Berlin

Tolksdorf, Bizer, Eckstein, Heese, Mochol, Oldakowski Knowledge Nets

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Knowledge Nets – People

Freie Universität Berlin Prof. Dr.-Ing. Robert Tolksdorf Malgorzata Mochól

Christian Bizer Radoslaw Oldakowski

Humboldt-Universität zu Berlin Dr. Rainer Eckstein Ralf Heese


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Agenda

Knowledge Nets

Global Sourcing – Application and Technology Scenarios (AM 1.1) Business to consumer e-commerce Recruitment scenario

Software infrastructure (AM 3.1) Development of the software infrastructure for the scenarios

Knowledge Transfer Publications Workshops and Conferences Lectures

Co-operations within Internet Economy

Industrial and Academic Co-operations


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Knowledge Nets (Subproject A)


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Knowledge Nets – Goals

Scenario-based analysis Predict economic impacts of the

Semantic Web technologies on E-Commerce

Business viewpoint Predict impacts on markets and value chains Estimate feasibility based on participants’ interests and

business models

Technological viewpoint Derive requirements for the technological infrastructure Evaluate current technological developments


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Global Sourcing – Application and Technology Scenarios (AM 1.1)


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Application and Technology Scenarios B2C / HR-Domain

Business to consumer e-commerce enhanced with Semantic Web technologies

Employment market enhanced with Semantic Web technologies

Analysis of today’s applications Job postings are written in the form of free text using uncontrolled

vocabularies The meta-search engines available perform searches on a full text basis The search results are limited in their ability to provide offers that match the

precise needs of their clients There are many different existing taxonomies for the classification of job

posting


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Application and Technology Scenarios HR-Domain

Szenario Information providers publish in RDF according to common ontologies Semantic Portals collect the information and offer semantic matching

services.

Implications Job Seeker (employee)

Increased market transparency Higher precision of search results

Job Poster (employer, job portals, state job centre) Open n:m communication – increased market transparency Costs reduction

Changes in the business models


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Application and Technology Scenarios HR-Domain – Ontology

JobPositionPosting(HR-BA-XML + BKZ)

JobPositionSeeker(HR-BA-XML + BKZ)

Person

SkillsIndustry(WZ2003 + NAICS) OrganisationEducation

We use an ontology for recruitment scenario that is based on JobPositionPosting and JobPositionSeeker from HR-BA-XML

Information is represented in OWL using controlled vocabularies


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Application and Technology Scenario HR-Domain – Matching

Matching is a process of determining of graph similarity

Graph similarity is the sum of the cluster similarities

Calculation of similarities for single node Taxonomic similarity Attributive similarity

Matching allows us to generate the ranking of results

Competence

JobPositionPosting

hasJobPositionInformation

requiredCompetence

CompetenceValue

hatKompetenzAusprägung

CompetenceValue_Language

CompetenceValue_General

hasHiringOrganisation

hasIndustry

hasWZType

...

...

JobPositionInformation

Organisation

Industry

WZ2003

[string]

jobDuration


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Scenario Architecture

InformationConsumers

Information Integration + Matching

Information Providers

SemanticMatchingEngine

Crawler

RDFRepository

Semantic Portal

RDF-enchancedWebsites

RAP RDFRepository

SAPHR

RAPAPI

NetAPI

JosekiD2R

Jena


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Evaluation toolkit (AM 3.1)


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Evaluation Toolkit

Semantic Web Framework

RAP – RDF API for PHP leading RDF toolkit for PHP developers features for parsing, manipulating, storing, querying, serializing, and

serving RDF models Open source, 1200 downloads

D2R D2R MAP - declarative language to describe mappings between

relational database schemata and OWL/RDFS ontologies D2R Processor - exports data from a relational database into RDF Open source, 300 downloads


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Application and Technology Scenarios

Surveys Current state of data exchange in the sectors

Automotive retail Consumer packaged goods (CPG) retail Telecommunication Liberalization of business markets

Semantic Web trust architecture

Repositories and Tools for RDF/S

RDF Algebra Mapping of query statements to algebra enabling efficient query

evaluation on huge amounts of RDF data

Modelling and Generation of Ontologies Modeling of OWL Ontologies with UML


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Knowledge Transfer


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Knowledge Transfer – Publications I

Published Ralf Heese

Neue Konzepte für RDF-Managementsysteme

16. Workshop über Grundlagen von Datenbanken. Monheim, June 2004.

Christian Bizer and Radoslaw Oldakowski

Using Context- and Content-Based Trust Policies on the Semantic Web.

13th International World Wide Web Conference 2004. New York, USA, May 2004.

Robert Tolksdorf, Christian Bizer, Rainer Eckstein, and Ralf Heese

Business to Consumer Markets on the Semantic Web.

International Workshop on Metadata Security, OTM Conference, Catania, Italy, November 2003.

Robert Tolksdorf, Christian Bizer, and Ralf Heese.

A Web Service Market Model based on Dependencies.

12th International World Wide Web Conference 2003. Budapest, Hungary, Mai 2003.


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Knowledge Transfer – Publications II

To appear Malgorzata Mochol, Radoslaw Oldakowski, and Ralf Heese

Ontology based Semantic Matching in Recruitment ProcessesSemantische Technologien für Informationsportale, Informatik 2004. Ulm, Germany, September 2004.

Radoslaw Oldakowski, Christian BizerRAP: RDF API for PHP1st International Workshop on Interpreted Languages (colocated with the NetObjectDays 2004 Conference), Erfurt, September 2004.

Robert Tolksdorf, Christian Bizer, Rainer Eckstein, and Ralf HeeseTrustable B2C Markets on the Semantic WebSpecial Issue on Metadata for Security des International Journal of Computer Systems, Science and Engineering, 2004.


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Knowledge Transfer – Publications III

Submitted for reviewing Jeremy J. Carroll, Christian Bizer, Pat Hayes and Patrick Stickler

Named Graphs, Provenance and Trust.3rd International Semantic Web Conference 2004, Hiroshima, Japan, November 2004.

Rainer Eckstein, Johannes Kirsch MOwU - Modeling OWL Ontologies with UML 3rd International Semantic Web Conference 2004, Hiroshima, Japan, November 2004.

Ralf Heese, Rainer Eckstein, Jan Große RAT - An RDF Algebra Based on Triples2nd Workshop Semantic Web and Databases, VLDB 2004, Toronto, Canada, August 2004


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SWEB2004 – International Workshop onSemantic Web Technologies in Electronic Business

As a part of the Berliner XML Tage 2004 (October 2004)www.berliner-xmltage.de

Cooperation with working groups Technologie-induzierte Veränderungen der Wertschöpfungssysteme Informationsqualität Semantic Web Excellenznetzwerk KnowledgeWeb

Topics Semantic Web (Ontologies, Mapping, Matching, Data Interoperability and

Quality, Processing) Technology induced Changes of the Value Chain Trust, Privacy, Security Application Scenarios and Prototypes Industrial Efforts and Experiences

Knowledge Transfer – Workshop


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Selected memberships in Program Committees

Prof. Dr.-Ing. Robert Tolksdorf Workshop XML-Technologien für das Semantic Web (XSW 2004) 6th International Conference on Enterprise Information Systems (ICEIS 2004) 2nd International Workshop on Security in Information Systems in conjunction with

ICEIS2004 Session Systems for Large-scale Metadata Extraction and Maintenance at the

KES’2004 8th International Conference on Knowledge-Based Intelligent Information & Engineering Systems

Dr. Rainer Eckstein Workshop XML-Technologien für das Semantic Web (XSW 2004) IADIS International Conference WWW / Internet 2004

Christian Bizer Trust, Security, and Reputation on the Semantic Web, Workshop at 3 rd

International Semantic Web Conference (ISWC 2004)

Knowledge Transfer – Selected Conferences


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Knowledge Transfer – Lectures

XML-Technologies in E-Business Presentations on classifications and specifications in E-Business A part of the Termination Meeting of <xmlcity:berlin> project At IHK Berlin in December 2003

The Semantic Web Trust Layer Talk at the 13th International World Wide Web Conference 2004, Developers Day,

New York, May 2004

Application of Semantic Web technologies in the recruitment domain Invited talk – HU Berlin, June 2004

Anwendungen des Semantic Web und ihre ökonomischen Perspektiven Research colloquium CIS and FhG ISST, Technical University Berlin, January 2004 Colloquium in Institute for Information Systems, University Hannover (cooperation

with research centre L3G) Hannover, February 2004

WS 2003/04 - FU Berlin, Institut für Informatik Seminar Internetökonomie Lecture XML-Standards für das E-Business Project, Seminar – Semantic Web Lecture, Project, Seminar – XML


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Knowledge Transfer – Miscellaneous

News release, May 2004

Seminar papers RDBMS-based Systems for Storing RDF Querying RDF Repositories

Master theses Algorithms for Semantic Matching Semantic Web Infrastructure in the field of B2C markets

Exchange student from the University of Beijing

6 PhD dissertations are being written On the field of Semantic Web

PhD students’ network FU, HU, TU, University Potsdam, University Viadrina (Frankurt/O), FhG FOKUS

Participation in standardization processes Attended W3C Technical Plenary 2004 Comment together with HP Labs on the W3C DAWG standardization process W3C Member Meeting at the Berliner XML Tage 2004 IFIP – Semantic Web


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Network within Internet Economy


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Working Groups of Internet Economy

Technology-induced changes of values added systems Modification of value chains: economic and social implications

(Göttingen, Munich, Berlin) Economic view of developments:

Intermediation Fragmentation of value chains Mobile services Individualization

Conclusions on potential changes in the work environment


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Industrial and Academic Cooperations


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Industrial Cooperations

HP Labs Bristol, Nokia Finland, IHMC USA und W3C SWIG Extension of RDF to Named Graphs Development of a Named Graphs repository, the TriQL query language and two

syntaxes for Named Graphs (TriX and TriG) The results of this work will be included into the next W3C RDF specification

HP Labs Bristol und Palo Alto Joined development D2R-Q, a mapping language for rewriting RDQL queries to

non-RDF database specific SQL queries Implementation as an open source extension to Jena 2

CyberConsult Beratungsgesellschaft für Neue Medien mbH, Berlin (initial talks) Exchange experience on technologies for job service portals, e.g. semantic

matching

Atos Origin GmbH, Berlin (initial talks) Definition of a common scenario, e.g. automotive or CGP/retail sector


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Academic Cooperations

Universität Essen, Yilmaz Alan In the KOWIEN project: development of an HR ontology

Universität Leipzig, Sören Auer Development of Semantic Web tools – RAP, pOWL

University of Madrid, Asunción Gómes-Péres RDF-DB mapping Esperanto-Project

Fraunhofer ISST, Andreas Billig Human Resources experience exchange Job Service Portal

KnowledgeWeb EU Network of Excellence


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Thank you!

interval – knowledge nets humboldt-universität zu berlin freie universität berlin

Documents

knowledge nets subproject

downloads slide

semantic matching services

rdf open source

rdf models open source

job portals

php leading rdf toolkit

ecommerce business viewpoint