Knowledge Building with Semantic Schema in Enterprise: The ARISTOTELE Approach

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ARISTOTELE Presentation at CISIS 2012. Learn more on http://www.aristotele-ip.eu/

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Knowledge Building with Semantic Schema in Enterprise: The ARISTOTELE Approach

  1. 1. Knowledge Buildingwith SemanticSchema in Enterprise:The ARISTOTELEApproachPierluigi RitrovatoDep. Of Electronic Engineeringand Computer Engineering,University of SalernoCRMPA – Research Center inPure and Applied Mathematics
  2. 2. Keynote talk CISIS 20124-6 July – Palermo (Italy) The ARISTOTELE project What ARISTOTELE is about Models & Methodologies Overall Picture ARISTOTELE Knowledge Building Methodologies overview Technological Solutions Other Available results The Architecture Already Developed tools Conclusion and Future WorksOutlines2
  3. 3. Keynote talk CISIS 20124-6 July – Palermo (Italy) FP7 EU funded Integrated Project Coordinated by CRMPA with a key-role ofMOMA from technical and exploitation point-of-view Best combination for research and exploitation success 8 partners with end-user involvement Proven complementarities and experience 6.4 M€ (4.5M€ funding by the EC) for 3 years Challenging results with clear value for money High strategic impact thanks to business orientation Two pilot partners involved in different domains (PHI and AMIS) Starting from an existing solution (Intelligent Web Teacher) Build on top of market leader enterprise & collaborative platform (Microsoft Sharepoint20120) Presence of a partner with a role of innovator/early adopter (ENG) Innovative approach to conceive relations among knowledge flows, learningobjectives, and creativity within the organizationGeneral Information3ScientificCoordinatorProjectCoordinatorTechnicalManager
  4. 4. Keynote talk CISIS 20124-6 July – Palermo (Italy)ARISTOTELE PartnersARISTOTELEAcademicIndustrialPilotResearch4
  5. 5. Keynote talk CISIS 20124-6 July – Palermo (Italy)In Enterprise contexts, organizational, learning, and socialcollaboration processes are often managed independentlyWhat ARISTOTELE is aboutARISTOTELE aims to coordinate them through a sort of virtuous cycle where intangible values (creativity, competences, and knowledge) are tracked and collected in order to: Be exploited in other processes Improve/innovate other processesCentral to this virtuous cycle are: The worker The enabling role of technologies5
  6. 6. Keynote talk CISIS 20124-6 July – Palermo (Italy)• ARISTOTELE Key points:• A new way to establish and enhance relationsamong knowledge flows, organizational and learningobjectives, work practices, and creativity withinknowledge intensive organizations• A novel methodological and modelling ground,consisting of• Conceptual Models representing organizational assets in amachine-understandable way• formalisation of knowledge using semantic schema and correlationamong key assets• Innovative Methodologies operating on conceptual models• achievement of organizational and performance objectivesWhat ARISTOTELE is about6
  7. 7. Keynote talk CISIS 20124-6 July – Palermo (Italy)• Key points of ARISTOTELE (cont.):• a set of “ARISTOTELE business Process Patterns”related to knowledge intensive organisations workpractices• Processing (i.e. transforming , updating, …) assetsavailable in the semantic models• Representing the dynamicity of the conceptual models• Supported by ARISTOTELE methodologies• An innovative technological platform• Human-centric• Models & methodologies driven (in contrast to technology-driven)• Built on top of state-of-the-art technologies (i.e. IWT,Microsoft Sharepoint 2010)What ARISTOTELE is about7
  8. 8. Keynote talk CISIS 20124-6 July – Palermo (Italy) The top level is the starting point: inputs (organizational objectives and workerneeds, preferences, …) “influencing” the key ARISTOTELE processes The middle level embraces the key ARISTOTELE processes centred oncollaboration: Building of personalized learning experiences Creation of Innovation Factory for collaborative innovation boosting Management and sharing of personal knowledge to be “reused” in different domains and tasks The bottom level includes features supporting update and reuse of organizationalknowledgeARISTOTELE enabling building blocksand research areas (1/2)8
  9. 9. Keynote talk CISIS 20124-6 July – Palermo (Italy) The top level is the starting point: organizational objectives and worker needs,preferences, … to “influence” the key ARISTOTELE processes The middle level embraces the key ARISTOTELE processes: Building of personalized learning experiences on the basis of the top level inputs Creation of Innovation Factory (for collaborative innovation boosting) leaded by needs arising frompersonalized learning experiences and customized according to the organizational objectives Management and sharing of personal knowledge to be “reused” in different domains and tasks The bottom level includes features supporting update and reuse of organizationalknowledgeARISTOTELE enabling building blocks and researchareas (2/2)Modelling using SemanticsInnovation factory:•Collective intelligence,Innovation Factory:•Web 2.0 paradigm, collective intelligence•Methodologies and process to exploitcollaborative network and to foster theinnovation factoriesPersonalized learning:•Methodologies supporting formal/informalcollabroative learning•Methodologies to access to learning offersstarting from requests in natural languagePWLE:•Methodologies to capitalize knowledgeelicited through informal and informalactivitiesInnovation factory:•Collective intelligence,Knowledge management:Methodologies and algorithms enabling:•Semi-automatic taxonomy construction•Alignment and mapping of domain ontologies•Semi-automatic ontology extraction•Capture and formalisation of knowledgeexchangeInnovation factory:•Collective intelligence,Methodologies for DSS for HumanResource Management9
  10. 10. Keynote talk CISIS 20124-6 July – Palermo (Italy) Knowledge Model (KM) provides constructs for the representationof enterprise knowledge entities,enterprise domain vocabulary, educationalvocabulary Competence Model (CM) provides constructs for the representationof competences and their relations toother concepts such as context, activities,and objectives Worker Model (WM) provides constructs for the representationof worker including social, learning,working and personal goals Learning Experience Model (LEM) provides constructs for the learningexperience needed to achieve a newcompetence or fill a competence gap.ARISTOTELE Models10
  11. 11. Keynote talk CISIS 20124-6 July – Palermo (Italy)Role of the Models: Integrated Schemas11
  12. 12. Keynote talk CISIS 20124-6 July – Palermo (Italy) Reference Ontologies: used to represent andstructure enterprise’s resources (e.g., worker profile,competences, project and activities, etc.) FOAF, DOAP, SKOS, SIOC, etc. Organisation Ontologies: exploited to provide ashared classification of the resources available in theKnowledge base. to classify knowledge resources according to the context of theenterprise and to provide a common access layer toheterogeneous resources daily produced by the workers (e.g.,document, wiki, blog, etc.).Characteristics of the ARISTOTELEModels12
  13. 13. Keynote talk CISIS 20124-6 July – Palermo (Italy)How fit everything together13
  14. 14. Keynote talk CISIS 20124-6 July – Palermo (Italy)A Model example: The Knowledge Model14
  15. 15. Keynote talk CISIS 20124-6 July – Palermo (Italy)A model instance example15
  16. 16. Keynote talk CISIS 20124-6 July – Palermo (Italy)Personal Break: 
  17. 17. Keynote talk CISIS 20124-6 July – Palermo (Italy) The ARISTOTELE project What ARISTOTELE is about Models & Methodologies Overall Picture ARISTOTELE Knowledge Building Methodologies overview Technological Solutions Other Available results The Architecture Already Developed tools Conclusion and Future WorksOutlines17
  18. 18. Keynote talk CISIS 20124-6 July – Palermo (Italy) What A proposal for ontology-based knowledgemanagement platform that integrates methodologies(i.e., Knowledge Extraction, Ontology Matching andMerging) aimed to support life cycle of large andheterogeneous knowledge bases. How The architecture relies on hybrid methodologiesapplying computational intelligence techniques andsemantic web technologies to provide a consistentand common access point to organisationalresources.ARISTOTELE Knowledge Building18
  19. 19. Keynote talk CISIS 20124-6 July – Palermo (Italy)ARISTOTELE Knowledge Building19
  20. 20. Keynote talk CISIS 20124-6 July – Palermo (Italy)Overview of Knowledge Building20
  21. 21. Keynote talk CISIS 20124-6 July – Palermo (Italy) Inputs: Documents from a personal or organisational work environment(e.g., project’s deliverables, publications); User Generated Content (e.g. blog, wiki entries); Curriculum Vitae; Outputs: Unsupervised Conceptualisation represented by means of SKOSscheme Classification of input resources according to UnsupervisedConceptualisation Features and Approach: Unsupervised approach; Multilingual NLP exploiting Wikipedia & Wikipedia Miner; Conceptual Data Analysis based on Fuzzy Clustering (FCM) andFuzzy Formal Concept Analysis (FFCA)Knowledge Extraction21
  22. 22. Keynote talk CISIS 20124-6 July – Palermo (Italy)Knowledge Extraction: Example Taking as inputTechnical Report ofan organisation themethodology carriesout taxonomieshierarchicalunsupervisedconceptualisation22
  23. 23. Keynote talk CISIS 20124-6 July – Palermo (Italy)Knowledge Extraction: Workflow &Technologies23
  24. 24. Keynote talk CISIS 20124-6 July – Palermo (Italy)HierarchicalConceptualisationIRsupportHighcosttoupdatingthestructureSupportforclassificationofnewdataClustering X XHierarchical Clustering X XLatent Semantic Analysis (LSA) X X XFormal Concept Analysis (FCA) & FuzzyFCAX X X XKnowledge Extraction: Foundation (1)• To face with time consuming execution of FFCA thefollowing approaches have been taken into account: Hybrid algorithm of FFCA: Incremental and Batch NoSQL DB storage of FFCA Input and Output (i.e., MongoDB)24
  25. 25. Keynote talk CISIS 20124-6 July – Palermo (Italy)Knowledge ExtractionFoundation (2)threshold T=0.625
  26. 26. Keynote talk CISIS 20124-6 July – Palermo (Italy) To prepare Organisation Ontologies (OO) atARISTOTELE Startup To keep up to date and to maintain OO To classify resources using OO To support feature such as: Tag suggestion; Find relevant document in PWLE wrt a context; Find workers with specific expertises; Dynamic faceted browsing of resourcesKnowledge Extraction: Application26
  27. 27. Keynote talk CISIS 20124-6 July – Palermo (Italy) Input: Source: Unsupervised conceptualisation, Target: OrganisationOntologies Source: available competences, Target: required competences Source: ongoing task, Target: workers, documents Output: let es and et be entities of <es, et, nst> where nst is a mappingdegree in [0,1] Features and Approach: Semi-automatic approach (lexical and structural); Link discovery based on SILK technology in order to evaluatematching degree among concepts or instances; A weighted average of different similarities: string-based(Levenshtein); web-based (Wikipedia Link-based measure);corpus-based (Explicit Semantic Analysis).Ontology and Instance Matching27
  28. 28. Keynote talk CISIS 20124-6 July – Palermo (Italy)Ontology and Instance Matching:Example (1)28
  29. 29. Keynote talk CISIS 20124-6 July – Palermo (Italy)Ontology and Instance Matching:Example (2)Kinds ofDeliverableState ofthe ArtMethdologiesProject YOrganization OntologiesModelrelatedKnowledgeModelWorker ModelKnowledgeModelTaskProjectWorkerARISTOTELE Models ARISTOTELE ModelsWorker BWorker ModelWorkerWorker AProject YARISTOTELE Instances O.O. Instances ARISTOTELE InstancesDeliverableDocumentContextTask:TitleTask:Description Document:TitleDocument:TopicDocument:DescriptionGoalAcquire knowledge onSocial Network topicTask:GoalTopicsSocialNetworkplatformIdea ManagementSystemProjectTask:ProjectRead suggestedmaterial onSocial Networkplatform
  30. 30. Keynote talk CISIS 20124-6 July – Palermo (Italy)Ontology and Instance MatchingWorkflow/Technologies30
  31. 31. Keynote talk CISIS 20124-6 July – Palermo (Italy) To align extracted Unsupervised Conceptualisation withrespect to enterprise knowledge base (i.e., OrganisationOntologies); To provide a supervised view of Unsupervised Conceptualisationextracted with methodology for Knowledge Extraction; To keep up to date classification of new incoming resources withrespect to OO; To find similar resources, such as: Similar tasks in PWLE To support link discovery on heterogeneous resources usingmorphisms enabled by OO People relevant for a Project according to required competencesand the available ones; Document, Project or Tasks in PWLE ...Ontology and Instance Matching:Application31
  32. 32. Keynote talk CISIS 20124-6 July – Palermo (Italy) Input: Source: Unsupervised conceptualisation, Target: OrganisationOntologies Output: Updated Organisation Ontologies; Feature and Approach: Semi-automatic approach; FFCA based approach inspired to FCA Merge; Exploits results from Ontology and Instance Matching featuresOntology Merging32
  33. 33. Keynote talk CISIS 20124-6 July – Palermo (Italy)Ontology Merging: Workflow &Technologies33 Formal context creationunsupervised providedby KE (vectorisation)Formal context creation OO resourcesrepresented through ARISTOTELEmodels instances connected to the OO
  34. 34. Keynote talk CISIS 20124-6 July – Palermo (Italy)Ontology Merging: Workflow &Technologies34 Exploiting Ontology Matching betweenUnsupervised Conceptualisation andOO
  35. 35. Keynote talk CISIS 20124-6 July – Palermo (Italy) Close the loop aimed to prepare and maintain OO Allowing to keep up to date OO; Suggesting when and which concepts of UnsupervisedConceptualisation could be merged with concepts ofOrganisation Ontologies;Ontology Merging: Application35
  36. 36. Keynote talk CISIS 20124-6 July – Palermo (Italy) The ARISTOTELE project What ARISTOTELE is about Models & Methodologies Overall Picture ARISTOTELE Knowledge Building Methodologies overview Technological Solutions Other Available results The ARISTOTELE High Level Architecture Already Developed tools Conclusion and Future WorksOutlines36
  37. 37. Keynote talk CISIS 20124-6 July – Palermo (Italy)ARISTOTELE Architecture Logical view
  38. 38. Keynote talk CISIS 20124-6 July – Palermo (Italy)Semantic Layer high level architecure38
  39. 39. Keynote talk CISIS 20124-6 July – Palermo (Italy)Available tools39
  40. 40. Keynote talk CISIS 20124-6 July – Palermo (Italy)Available tools40
  41. 41. Keynote talk CISIS 20124-6 July – Palermo (Italy) The ARISTOTELE project What ARISTOTELE is about Models & Methodologies Overall Picture ARISTOTELE Knowledge Building Methodologies overview Technological Solutions Other Available results The ARISTOTELE High Level Architecture Already Developed tools Conclusion and Future WorksOutlines41
  42. 42. Keynote talk CISIS 20124-6 July – Palermo (Italy) Main features: Definition of an ontology-based KM platform that integrates andorchestrates several methodologies in order to enableknowledge base preparation, maintenance and update; The knowledge extraction is strongly devoted to exploit andmake up a specialised Wikipedia knowledge base; Future work: to finalise the implementation of intelligent services on theplatform to support several enterprise processes, such as:expert finding, human resource management and experiment inreal working environmentConclusion and Future Works42
  43. 43. Keynote talk CISIS 20124-6 July – Palermo (Italy) Web site: http://www-aristotele-eu.org twitter: (@Aristotele_ip) URL:http://twitter.com/#!/Aristotele_ip LinkedIn: ID Group - ARISTOTELE Facebook: ARISTOTELE ProjectARISTOTELE references43Thank you very muchfor your attention andstay tuned!

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