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InterVal – Knowledge Nets. Humboldt-Universität zu Berlin Freie Universität Berlin. Knowledge Nets – People. Freie Universität Berlin Prof. Dr.-Ing. Robert Tolksdorf Malgorzata Moch ó l Christian Bizer / Prof. Dr. Uwe H. Suhl Radoslaw Oldakowski Humboldt-Universität zu Berlin - PowerPoint PPT Presentation
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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 / Prof. Dr. Uwe H. Suhl Radoslaw Oldakowski
Humboldt-Universität zu Berlin Dr. Rainer Eckstein / Prof. Johann Christoph Freytag, Ph.D. Ralf Heese
Tolksdorf, Bizer, Eckstein, Heese, Mochol, Oldakowski Knowledge Nets
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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
Tolksdorf, Bizer, Eckstein, Heese, Mochol, Oldakowski Knowledge Nets
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Knowledge Nets (Subproject A)
Tolksdorf, Bizer, Eckstein, Heese, Mochol, Oldakowski Knowledge Nets
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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
Tolksdorf, Bizer, Eckstein, Heese, Mochol, Oldakowski Knowledge Nets
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Global Sourcing – Application and Technology Scenarios (AM 1.1)
Tolksdorf, Bizer, Eckstein, Heese, Mochol, Oldakowski Knowledge Nets
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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
Tolksdorf, Bizer, Eckstein, Heese, Mochol, Oldakowski Knowledge Nets
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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
Tolksdorf, Bizer, Eckstein, Heese, Mochol, Oldakowski Knowledge Nets
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Evaluation toolkit (AM 3.1)
Tolksdorf, Bizer, Eckstein, Heese, Mochol, Oldakowski Knowledge Nets
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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
Tolksdorf, Bizer, Eckstein, Heese, Mochol, Oldakowski Knowledge Nets
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Knowledge Transfer
Tolksdorf, Bizer, Eckstein, Heese, Mochol, Oldakowski Knowledge Nets
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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.
Tolksdorf, Bizer, Eckstein, Heese, Mochol, Oldakowski Knowledge Nets
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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
Tolksdorf, Bizer, Eckstein, Heese, Mochol, Oldakowski Knowledge Nets
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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
Tolksdorf, Bizer, Eckstein, Heese, Mochol, Oldakowski Knowledge Nets
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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
Tolksdorf, Bizer, Eckstein, Heese, Mochol, Oldakowski Knowledge Nets
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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
Tolksdorf, Bizer, Eckstein, Heese, Mochol, Oldakowski Knowledge Nets
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Network within Internet Economy
Tolksdorf, Bizer, Eckstein, Heese, Mochol, Oldakowski Knowledge Nets
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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
Tolksdorf, Bizer, Eckstein, Heese, Mochol, Oldakowski Knowledge Nets
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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!