knowledge · information · learning - Forschungszentrum L3S

– in collaboration with the other project partners – designed
a request language and a comprehensive,two-phase matching
process. With respect to entity lifecycle management,
the L3S team implemented and evaluated an innovative
approach for an identification scheme, which preserves
the lineage with ancestors when entity decisions have to
be revised. If, for example, two entities have to be merged
in the entity repository the identifier of the new merged
entity is designed in a way that it is still compatible with
the identifiers of its two ancestors.
Potential Applications & Future Issues
An entire portfolio of entity-centric services is envisioned by
the OKKAM consortium – enabled by the entity identifier
re-use as it is fostered by the OKKAM ENS. Three exemplary
entity-centric applications are already addressed during
the OKKAM project: entity-centric organizational knowledge
management, entity-centric search, and entity-centric
content authoring. Next steps in the OKKAM project
are the improvement of the ENS e.g. with respect to types
of entities supported and the implementation of the aforementioned
entity-centric applications.
KNOWLEDGE
Project Type: Integrated Project Eu/ICT FP7
Project duration: january 2008 – june 2010
Project Research Areas: Entity matching, semantic and
entity-centric search, entity ranking, entity extraction
uRL of the project: http://www.okkam.org
Project managers:
Prof. Dr. techn. Wolfgang Nejdl, nejdl@L3S.de
Dr. Claudia Niederée, niederee@L3S.de
Publications:
1. Ekaterini Ioannou, Claudia Niederée, Wolfgang
Nejdl. Probabilistic Entity Linkage for Heterogeneous
Information Spaces. In: Advanced Information
Systems Engineering, 20th International Conference
(CAiSE), Montpellier, France, june 16-20, Proceedings,
pp. 556-570, 2008, Springer, 978-3-540-69533-2.
2. Paolo Bouquet, Heiko Stoermer, Claudia Niederée,
and Antonio Mana. Entity Name System: The
Backbone of an Open and Scalable Web of Data. In
Proceedings of the IEEE International Conference on
Semantic Computing, ICSC 2008, number CSS-ICSC
2008-4-28-25. IEEE, August 2008
3. julien gaugaz, gianluca Demartini. Entity
Identifiers for Lineage Preservation. In 1st
international workshop on Identity and Reference on
the Semantic Web (IRSW2008) hosted by the 5th
European Semantic Web Conference ESWC-08,
Tenerife, Spain, june, 2008.
FORSCHUNGSZENTRUM L3S L3S RESEARCH CENTER 23