A Media-Theoretical Approach to Technology Enhanced Learnng in Non-Technical Disciplines

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A Media-Theoretical Approach to Technology Enhanced Learnng in Non-Technical Disciplines

  1. 1. A Media Theoretical Approach to Technology Enhanced Learning in Non-Technical Disciplines Marc Spaniol , Yiwei Cao and Ralf Klamma Sissi, Greece, 19 th of September 2007 The 2 nd European Conference on Technology Enhanced Learning
  2. 2. Agenda <ul><li>Motivation </li></ul><ul><ul><li>Communities of Practice in Non-Technical Disciplines </li></ul></ul><ul><ul><li>Technology Enhanced Learning ( TEL ) in Non-Technical Disciplines </li></ul></ul><ul><li>Media-centric TEL in Communities </li></ul><ul><ul><li>Theory of Transcriptivity </li></ul></ul><ul><ul><li>SECI-Model (Socialization – Externalization – Combination – Internalization) </li></ul></ul><ul><li>Information System Support for Media-centric TEL </li></ul><ul><ul><li>A media theory for computer science </li></ul></ul><ul><ul><li>TEL -Services based on a Lightweight Application Server ( LAS ) </li></ul></ul><ul><li>Virtual Campfire: TEL -Services applied </li></ul><ul><ul><li>Transcription – Collaborative Content Creation </li></ul></ul><ul><ul><li>Formalized Localization – Episodic Knowledge in non-linear Stories </li></ul></ul><ul><ul><li>Addressing – Contextualized Multimedia Presentations </li></ul></ul><ul><li>Conclusions and Outlook </li></ul>
  3. 3. Communities of Practice (CoPs) in Non-Technical Disciplines <ul><li>Characteristics of CoPs [Wenger 1998] in Non-Technical Disciplines (e.g. the Cultural Sciences) </li></ul><ul><ul><li>Collaboration in the Scope of a (Research)-Project </li></ul></ul><ul><ul><li>Legitimate Peripheral Participation </li></ul></ul><ul><ul><li>Limited financial Resources for Computer Scientific Support </li></ul></ul><ul><li>Typical Working Practices </li></ul><ul><ul><li>Recontextualization of Artifacts based on the underlying Theory </li></ul></ul><ul><ul><ul><li>Comparison, Discussion und Commenting von Archives </li></ul></ul></ul><ul><ul><ul><li>Applicable Opinion to be discussed in a specific Context </li></ul></ul></ul><ul><ul><ul><li> Keeping Discourse going on, not deciding true/false </li></ul></ul></ul><ul><ul><li>Work on Terminology based on evolutionary Categorizations </li></ul></ul><ul><ul><li>Individual Modifications of Multimedia Contents (Variations) </li></ul></ul><ul><ul><li>Creation of Reference Collections </li></ul></ul>Fluid Archive
  4. 4. Technology Enhanced Learning ( TEL ) in Non-Technical Disciplines <ul><li>How does Learning take place? </li></ul><ul><ul><li>Partition of scientific Disciplines based on Snow: „The Two Cultures“ [1959] </li></ul></ul><ul><ul><li>Linear: Model „Natural Sciences and Engineering Sciences“ </li></ul></ul><ul><ul><ul><li>Old Knowledge is replaces by new Knowledge </li></ul></ul></ul><ul><ul><ul><li>Medial Artifacts disappear in the Archive, but remain quotable </li></ul></ul></ul><ul><ul><ul><li> Knowledge is „transported“ </li></ul></ul></ul><ul><ul><li>Non-linear: Model „Cultural Sciences and Humanities“ </li></ul></ul><ul><ul><ul><li>New Knowledge emerges from the Discourses about old Knowledge </li></ul></ul></ul><ul><ul><ul><li>Medial Artifacts are kept in dynamic Archives </li></ul></ul></ul><ul><ul><ul><li> Knowledge is medial „illustrated“ </li></ul></ul></ul><ul><li>How to support the non-linear Model of Knowledge Organization and Creation by means of Information Systems? </li></ul><ul><li> Combining: </li></ul><ul><li>Operational Media Theory and Knowledge Management Theory </li></ul>
  5. 5. Theory of Transcriptivity <ul><li>Media Operations </li></ul><ul><ul><li>Transcription: Improving readability and making sense of Pre-Texts </li></ul></ul><ul><ul><li>Addressing: Transforming „unaddressed“ Information in „addressed“ Messages </li></ul></ul><ul><ul><li>Localization: Adopting Media to local Practices </li></ul></ul><ul><li>“ Interleaved” Media Operations </li></ul><ul><li>Interdependencies Multimedia Content ↔ Community Context not systematized </li></ul>Pre-Texts Transcript inter- resp. intra-media Transcription understanding & critique Transkribieren – Medien/Lektüre [Jäger, Stanitzek 02]
  6. 6. Refined SECI-Model <ul><li>Combination of western and asian Knowledge Theories </li></ul><ul><li>Continuous Knowledge Transformation: Individual ↔ Community </li></ul><ul><li>Media Operations and Security Aspects disregarded </li></ul>implicit Knowledge explicit Knowledge implicit Knowledge explicit Knowledge Transformation from Transformation into The Knowledge Creating Company [Nonaka & Takeuchi 95] The Declarative/ Procedural Model [Ullman 2004] Socialization Externalization Internalization Combination procedural declarative episodic declarative semantic
  7. 7. A Media Theoretical Approach to TEL <ul><li>Synthesis of Theory of Transcriptivity and SECI-Model </li></ul><ul><li>Focus on Media-theoretic Aspects in Knowledge Organization and Creation </li></ul>EC-TEL 2007 [Spaniol et al.] Combination: formal Localization Externalization: Transcription Socialization: practical Localization Internalization: Addressing Transcript Pre-Texts Transcript in Context
  8. 8. TEL -Services based on a Lightweight Application Server ( LAS ) <ul><li>Key Features : </li></ul><ul><li>- 3-Tier Architecture - Java based Implementation </li></ul><ul><li>- Connectors - Access Control on Service- and Object-Level </li></ul><ul><li>- Components (internal) - MPEG-7/21 compliant Multimedia-Services </li></ul><ul><li>- Services (internal & external) - Extension and Replacement of Services at Runtime </li></ul>I-Know 2006 [Spaniol et al.] ICWL 2007 [Spaniol et al.]
  9. 9. Access Control in LAS <ul><li>Relevant Data </li></ul><ul><ul><li>Users / Agents </li></ul></ul><ul><ul><li>Groups (hierarchical ordered) </li></ul></ul><ul><ul><li>Security Objects (e.g. Multimedia Artifacts) </li></ul></ul><ul><li>Access Right Management </li></ul><ul><ul><li>Permissions / Prohibitions </li></ul></ul><ul><ul><li>Roles (Method Level) </li></ul></ul><ul><ul><li>Access Control Lists (Object Level) </li></ul></ul>
  10. 10. MPEG-7-Services in LAS <ul><li>Key Features: </li></ul><ul><li>- MPEG-7 compliant Creation, Retrieval, Update, Deletion and Validation of Contents </li></ul><ul><li>- Persistency based on a MPEG-7 XML-Database (IBM, Oracle, eXist) </li></ul><ul><li>- Automatic MPEG-7-Binding via Apache XMLBeans </li></ul>
  11. 11. Multimedia Management in LAS <ul><li>Key Features: </li></ul><ul><li>- Media Management via associated Community-FTP-Server </li></ul><ul><li>- LAS Access Control </li></ul>
  12. 12. LAS -Summary <ul><li>Community Support </li></ul><ul><ul><li>Java Platform Independence </li></ul></ul><ul><ul><li>Easy to Maintain and Extend at Runtime </li></ul></ul><ul><ul><li>Core Services for Community-Administration </li></ul></ul><ul><ul><li>Fine-grained Access Control </li></ul></ul><ul><ul><ul><li>Method Level </li></ul></ul></ul><ul><ul><ul><li>Object Level </li></ul></ul></ul><ul><ul><ul><li>„ Security-First“-Concept </li></ul></ul></ul><ul><ul><li>Platform for Community-Hosting </li></ul></ul><ul><li>TEL Support </li></ul><ul><ul><li>Interoperable (Multimedia) Metadata </li></ul></ul><ul><ul><li>Cross-Community Support by MPEG-7/21 Compliance </li></ul></ul><ul><ul><li>Automatic Conversion to/from Dublin Core </li></ul></ul><ul><ul><li> Schema-compliant MPEG-7/21 Modifications via XMLBeans </li></ul></ul><ul><li> Better Community and Multimedia Support than comparable Application Server such as Tomcat or Zope/Plone </li></ul>
  13. 13. Virtual Campfire TEL -Services applied <ul><li>- Exchange of Multimedia Artifacts </li></ul><ul><li>- Protection of geo-spatial Data of unauthorized access (e.g. Tomb Raiders) </li></ul><ul><li>- Recontextualization Multimedia Contents via non-linear Stories </li></ul><ul><li>- MPEG-7 based semantic Multimedia Annotations </li></ul>ICWL 2006: [Spaniol et al.] Knowledge Management Strategies 2007: [Spaniol et al.] Support of an International Community of Researchers in order to Preserve the Afghan Cultural Heritage by:
  14. 14. Transcription Collaborative Content Creation <ul><li>Creation & Management: </li></ul><ul><ul><li>Media Collections </li></ul></ul><ul><ul><li>Metadata </li></ul></ul><ul><ul><li>Media Variations </li></ul></ul><ul><li>Collaborative Indexing based on: </li></ul><ul><ul><li>Free Text Annotations (a lá Flickr) </li></ul></ul><ul><ul><li>Semantic MPEG-7 Basetypes </li></ul></ul><ul><ul><ul><li>Agent </li></ul></ul></ul><ul><ul><ul><li>Event </li></ul></ul></ul><ul><ul><ul><li>Concept </li></ul></ul></ul><ul><ul><ul><li>Object </li></ul></ul></ul><ul><ul><ul><li>Place </li></ul></ul></ul><ul><ul><ul><li>Time </li></ul></ul></ul><ul><ul><ul><li>State </li></ul></ul></ul>
  15. 15. Formalized Localization Episodic Knowledge in non-linear Stories <ul><li>Illustration of episodic Knowledge </li></ul><ul><ul><li>Modeling of non-linear Stories based on Movement Oriented Design (MOD) [Sharda 2005]; Cooperation with Victoria Universität Melbourne, Australia </li></ul></ul><ul><ul><li>Decomposition of Stories according to a Problem-Hierarchy </li></ul></ul><ul><ul><li>Recall of semantic high-quality Metadata on Multimedia Artifacts </li></ul></ul>Structure of Begin- Middle- End-Sequences „ Mapping“ of (Sub)-Problems to Multimedia Artifacts Structured Access to Contents of the Multimedia Archive
  16. 16. Addressing Contextualized Multimedia Presentations <ul><li>Non-linear Access Sequences in multimedia Stories, i.e. „Success vs. Failure“ depending on Access Sequence </li></ul><ul><li>Context Information via Multimedia Annotations </li></ul>Currently selected Artifact Optional Successor-Sequences Free Text Annotations MPEG-7 based Annotations
  17. 17. Virtual Campfire – Experiences <ul><li>Evaluated by </li></ul><ul><ul><li>Researchers at the Chair of Urban History, RWTH Aachen </li></ul></ul><ul><ul><li>Working Group of Prof. Nalin Sharda at Victoria University Melbourne, Australia </li></ul></ul><ul><li>Positive Aspects </li></ul><ul><ul><li>Combination of semantic and episodic Knowledge in TEL by non-linear Multimedia Stories </li></ul></ul><ul><ul><li>MOD-Structure serves as Guideline for the creation of “useful” Stories </li></ul></ul><ul><ul><li>Web 2.0 alike Participation </li></ul></ul><ul><li>Usage of MPEG-7 </li></ul><ul><ul><li>„ Folksonomies“ based on MPEG-7 semantic Basetypes </li></ul></ul><ul><ul><li>MPEG-7 Basetypes used for geo-spatial and spatio-temporal Descriptions </li></ul></ul><ul><ul><li>Semantic search by regular Expressions </li></ul></ul><ul><ul><li> Annotations with MPEG-7 bBsetypes increase the Data Quality </li></ul></ul><ul><li>Open Issues </li></ul><ul><ul><li>Application on mobile end Devices (e.g. usage of MPEG-21) </li></ul></ul><ul><ul><li>User modeling (e.g. by use of IMS LIP or IEEE PAPI) </li></ul></ul>
  18. 18. Conclusions <ul><li>Experiences in using Virtual Campfire in non-technical Disciplines </li></ul><ul><ul><li>A media theory for Computer Science as a Model of Knowledge Organization and Creation in TEL </li></ul></ul><ul><ul><li>TEL -Services allow an „evolutionary“ Service Development </li></ul></ul><ul><ul><ul><li>Easy to Maintain and Extend at Runtime </li></ul></ul></ul><ul><ul><ul><li>Core Services for Community-Administration </li></ul></ul></ul><ul><ul><li>Interoperability via </li></ul></ul><ul><ul><ul><li>MPEG-7/21 Compliance </li></ul></ul></ul><ul><ul><ul><li>Dedicated MPEG-7-Services </li></ul></ul></ul><ul><ul><li> Platform for TEL in non-technical Disciplines </li></ul></ul><ul><li>Transfer of Results in different Application Domains </li></ul><ul><ul><li>Entrepreneurial Training ( VEL – Virtual Entrepreneurship Lab) </li></ul></ul><ul><ul><li>Plastics Technology ( TRAMP – T.ool for R.epresentation & A.nnotation of M.ultimedia Content in P.lastics Engineering) </li></ul></ul>
  19. 19. Outlook <ul><li>Further Development of Virtual Campfire towards mobile Community-Hosting in the research cluster on &quot;Ultra High-Speed Mobile Information and Communication (UMIC)&quot; </li></ul><ul><ul><li>GPS-Embedding </li></ul></ul><ul><ul><li>Mobile End Devices </li></ul></ul><ul><ul><li>Location Awareness </li></ul></ul><ul><li>Conceptual Enhancements </li></ul><ul><ul><li>Graphical Editors for User Interface Design in Communities </li></ul></ul><ul><ul><li>Modeling of Media Usage based on the Actor-Network-Theory </li></ul></ul><ul><ul><li>Analysis of “Agency and Patienthood” Phenomena in Communities </li></ul></ul>Informatik 5 (Information Systems) – RWTH Aachen University © 2007

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