The NEPOMUK project. Dr. Ansgar Bernardi DFKI GmbH Kaiserslautern, Germany

Transcription

1 The NEPOMUK project Dr. Ansgar Bernardi DFKI GmbH Kaiserslautern, Germany Integrated Project n Priority Semantic knowledge based systems

2 NEPOMUK supports personal knowledge work Knowledge work comprises Collecting, structuring, connecting information Articulation of new ideas, observations, insights, thus generating information Sharing, exchange, and communication according to individual goals, perspectives, and processes The personal computer is a work environment which closely reflects the individual way of working in its internal structures Files, folders, bookmarks Modern work requirements ask for flexibility and collaboration within networks across traditional boundaries 2

3 Motivation How do you? How do you manage and structure your personal information? How do you share and exchange data & knowledge with your colleagues? How do you find an expert in your organization? 3

4 Social Semantic Desktop Desktop: Semantic: Social: Help individuals in managing information on their PC Make content available to automated processing Enable exchange across individual boundaries WebSite Person Topic Document Image Event Person friend colleague acquaintance Personal Semantic Web: a semantically enlarged intimate supplement to memory Social protocols and distributed search NEPOMUK enabled peers 4

5 Project objectives The personal workspace supports and reflects the individual way of information processing, thought articulation, and knowledge sharing Build a comprehensive solution: The Social Semantic Desktop Standardized, open-source architecture & implemented middleware for the Social Semantic Desktop Desktop aspect Annotate & link; Articulate & visualize ; Integrate into work processes Social Aspect Relation building and knowledge sharing; Distributed search and storage Prove the benefits in case studies Applied reference solutions with documented experience and methodological knowhow Make everybody use it Early community involvement Core components distributed as Open Source 5

6 NEPOMUK realizes a component framework Middleware ( backbone ) Service registry Communication interfaces (using http & SOAP) Implementation of the middleware interfaces abstracts from plattforms Current implementations are embedded in OSGI and DBUS All services are described using WSDL Messages can refer to NEPOMUK ontologies 6

7 NEPOMUK Architecture 7

8 Services on the personal desktop support personal semantic information management Search Tasks, data, concepts Current Task Information relevant in this context categories persons projects semantic relations / links Connect, structure, retrieve information Personal RDF store as universal fact repository Personal Task Management makes context explicit Personal Information Model (PIMO) explicates concepts used within the personal information space Result: Your personal information space at a glance! 8

9 Example: PIMo about conference has-address Calender ( ) takes-place-on has-speaker has-speaker has-speaker is-hosted-by is-hosted-by has-location is-hosted-by P2P Conference, Galway

10 A hierarchy of models and ontologies facilitates the handling of global and personal views Thing SystemItems Representational Level Person Role Time Document Organization Upper Level Domain independent Manager Conference Project Offer Contract Message Company Mid Level Adopted to Organization (i.e. Cisco, DERI) Claudia P2P P2P, Galway Cisco Personal Level Personal concepts and Data, e.g. from Claudia 10

11 Tools support the automatic generation and maintenance of models & annotations Claudia's files and s crawl file data APERTURE aperture.sourceforge.net PIMo Desktop Database analyse text describe in RDF Item Recommender Service lift structure Model & Data Alignment 11

12 Services on the personal desktop support knowledge explication, collaboration, and sharing Personal Semantic Wiki Easy writing Explication of ideas, concepts, relations Automated annotation support connects to the personal models Group-accessible semantic wikis are a basis for collaboration and ontology negotiation Explicit delegation and transfer of tasks supports agile group work processes Search & retrieval services across desktop applications are useable both locally and from the outside 12

13 Services across desktops cover distributed search, community building, and semantic exchange Sharing & exchange of knowledge (= annotated data) Example: Delegation of a task invokes reminder service at the receiver s side Martin Semantic search across individual desktops P2P network with distributed hash tables as index structure Security model & access control Mapping and merging of ontology concepts Community building in networks Network & communication analysis Easy location of experts 13

14 Solutions You can How do you manage and structure your personal information? mental model, PIMo free data from their silos How do you share and exchange data with your colleagues? P2P network, Content-based routing Link Routing based on social connections How do you find an expert in your organization? using the PIMo topics to detect and classify experts and communities 14

15 NEPOMUK Case Studies Community Work EDGE-IT Mandrake Linux user community Knowledge sharing and community forming around an electronic community helpdesk Professional Business Services TMI consulting network Structured collaboration and exchange from individually generated knowledge to globally commercialized consulting products Software Development & Research SAP Manage information-rich and collaborative work processes BioScience Electronic Lab-Book at Institut Pasteur Effective management of research notes 15

16 Bioscience research results are documented in an electronic lab book Researchers create structured documentation basedon material (texts, pictures, tables, etc.) available on their computers Easy handling and maintenance of source links are crucial 16

17 Using NEPOMUK, relevant material is integrated from the PC (and from connected machines of peers) The metadata and dependencies are maintained automatically Main user benefits: Improved knowledge integration across tools and desktops Re-use of semantic annotation Semantics-based communication control 17

18 NEPOMUK will deliver open source tools and standards for smooth collaboration The freely available open-source framework comprises Standardized interfaces, architecture, ontologies Plug-in architecture, extendable to suit application needs Building upon standard semantic web technology A set of reference implementations covers representative application domains Consulting, BioScience, Strategic planning, Distributed Community work A vivid community ensures uptake and extension beyond the project s duration Active scientific community ( Involvement of open source developer communities Setup of user groups and domain-specific application communities 18

19 NEPOMUK has reached considerable community uptake KDE 4.0 beta released contains basic NEPOMUK architecture components ECLIPSE community supports OSGI-based NEPOMUK implementation PSEW alpha available Demonstrated at IBM Lotusphere 07 Open Source development plattform available dev.nepomuk.semanticdesktop.org Public mailing list: 19

20 The KDE Desktop provides NEPOMUK models and annotations as an OS service structure and classification of information 20

21 and integrates tagging, metadata handling, and retrieval into standard file operations PIMo Java manual tagging of files, folders, s, etc. Representation of tags within PIMo 21

22 NEPOMUK will achieve its impact by clear dedication to open source development Target impact: A new market for domain-specific knowledge work support Industry Science (ERA) Society Collaboration-oriented knowledgeintensive activities in industry Support of collaboration & exchange in the ERA Individual uptake and specific product development Domain-specific Extensions Use-Case specific e.g. Molecule Modeler Often proprietary Common Knowledge Modeling and Collaboration Infrastructure Knowledge modeling; specific adapter software (e.g., for ) Mostly Open Source Common Architecture Interfaces and glue code P2P network Framework & data management Open Source (GPL / BSD) 22

23 The NEPOMUK consortium unites industry, research, and representative users 23

24 NEPOMUK is a three-year Integrated Project within the EU 6th Framework Programme Project FP NEPOMUK Duration: EC contribution: 11.5 M (Total budget: 17.1 M ) For further information, please contact Project website: info@nepomuk.semanticdesktop.org Coordinator: Dr. Ansgar Bernardi Trippstadter Str Kaiserslautern Germany Tel

25 Questions? Integrated Project n Priority Semantic knowledge based systems