Videolectures for ocwc2010

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Videolectures for ocwc2010

  1. 1. exchange ideas / share knowledge<br />VIDEOLECTURES.NET<br />
  2. 2. Outline of the talk<br />About videolectures.net and K4A<br />Technical solutions in preparation<br />Towards the content personalisation<br />Automatic Transcriptions<br />Enhanced Recommender Services<br />Visitors analytics<br />OCWC on videolectures.net<br />
  3. 3. Jozef Stefan Institute Department of Knowledge Technologies @ Center for Knowledge Transfer<br />Jozef Stefan Institute (JSI) is the leading Slovene research institution for natural sciences (800+ people) in the areas of computer science, physics, chemistry<br />Document-Atlas<br />Department of Knowledge Technologies have around 60 people working in various areas of artificial intelligence (machine learning, data mining, semantic technologies, computational linguistics, decision support)<br />Spinoff-s: Cyc-Europe, Quintelligence, LiveNetLife, Temida, XLab<br />Selection of Portals and Products: <br /><ul><li>Text-Garden (http://www.textmining.net)
  4. 4. Enrycher(http://enrycher.ijs.si/)
  5. 5. VideoLectures.NET (http://videolectures.net/)
  6. 6. IST-World (http://www.ist-world.org/)
  7. 7. Project Intelligence (http://pi.ijs.si/)
  8. 8. Search-Point (http://searchpoint.ijs.si/)
  9. 9. OntoGen(http://ontogen.ijs.si/)
  10. 10. Document-Atlas (http://docatlas.ijs.si/)
  11. 11. AnswerArt(http://answerart.net/)</li></ul>Semantic-Graphs<br />VideoLectures.NET<br />Selection of FP6 & FP7 Projects (Integrated Projects and Networks of Excellence only):<br />FP7 IP ACTIVE – Enabling the Knowledge Powered Enterprise<br />FP7 IP COIN – COllaboration and INteroperability for networked enterprises<br />FP7 IP EURIDICE – Inter-Disciplinary Research on Intelligent Cargo for Efficient, Safe and Environment-friendly Logistics<br />FP7 NoE PASCAL2 – Pattern Analysis, Statistical Modeling and Computational Learning <br />FP7 NoE T4ME – Machine Translation & Multilingual Information Retrieval<br />FP6 IP NeOn– Lifecycle Support for Networked Ontologies<br />FP6 IP ECOLEAD – European Collaborative Networked Organizations Leadership Initiative<br />FP6 IP SEKT – Semantically-Enabled Knowledge Technologies<br />
  12. 12. Videolectures: Basic facts<br />10000 videolectures - CC<br />10000 unique visitors per day<br />Recorded events 2009: 70, 2868 videos<br />Shared business models:<br />Research projects <br />Events<br />Academic institutions<br />Baseline funds<br />In-house developed services with strong support in research in semantics<br />JSI infrastructure, 5 permanent, 10-15 part time<br />Goal: Contributing to a global higher ed change by offering open access to high quality scientific material<br />
  13. 13. International dimension<br />European research supported by the European Commission (from 3M to 10M Euro scale RTD projects)<br />International institutions: EC, CEEMAN , CERN , Cluster Network , EFMD, IPSA , CLSP, MIT, UC Irvine , Yale, Stanford, TEDx, CMU, University of Ljubljana, Slovenian public research agency…<br />Active participation in: Opencast, OCWC, EuroCRIS<br />Knowledge4All foundation<br />
  14. 14. K4A<br />Originates from Pascal NoE<br />Knowledge and content exchange network<br />Inspired and lead by most active institutions and organisations around the world from the area of free and open scientific content<br />Effective and pragmatic<br />Global impact<br />Distributed, networked, bottom –up governance<br />Funds , joint projects<br />Using existing University networks and resources<br />Distinctive element: all content to be scientifically approved<br />
  15. 15. K4A - Five pillars of activity<br />Infrastructure: ICT Matterhorn - Interoperability, Channels, Semantics<br />Science: Journal and conferences<br />Online scientific video journal to global university<br />Education: courses and content<br />Quality assurance – peer reviewed content<br />Research: <br />facilitating the systems, accessing the content, enabling interaction<br />IPRs, multilinguality, standards<br />Business models (added value models)<br />Other continent connections: case study in engagement and interaction<br />
  16. 16. World Summit Award 09<br />World Summit award 09 <br />“With this, “Videolectures.Net” has approximately outrun 20.000 other products and projects from 157 countries participating in the 4th edition of the WSA, the United Nations based contest for e-content and creativity in the Information Society”.<br />
  17. 17. Technology stack<br />5 servers serving 20 TB of data<br />700,000 unique files<br />300,000 web requests daily (90,000 dynamic) <br />
  18. 18. Technologies and Research<br />Deep Semantics & Reasoning (Cyc)<br />Light-Weight Semantic Technologies<br />(OntoGen, OntoBridge)<br />Decision Support (DEX)<br />Social Computing/Web2.0 (LiveNetLife)<br />Computational Linguistics <br />(Enrycher, AnswerArt)<br />Complex Data Visualization <br />(DocAtlas, NewsExplorer, SearchPoint)<br />Graph/Social Network Analysis <br />(GraphGarden/SNAP, IST-World, FPIntelligence)<br />Data/Web/Text/Stream-Mining<br />(TextGarden Suite of tools)<br />Statistical Machine Learning<br />
  19. 19. Personalisation<br />Log files<br />Content mining<br />Adaptation<br />Modeling<br />(Needs and preferences)<br />
  20. 20. Towards personalisation @ videolectures.net<br />
  21. 21. User profiling service(Qminer)<br />Ver1 – identifying segments: developed for NYT, Bloomberg <br />Ver2 – individual profiling: web service for videolectures.net<br />Analysing user logs and the content being accessed<br />Textual description – need for transcripts<br />Contextualisation – need for enriched content<br />Deep analytics<br />Modeling user behavior<br />Detecting SIGs – marketing groups, investors,…<br />Predicting and simulating user’s<br />Detecting trends in visits<br />Personalising content and methods<br />…<br />
  22. 22. User profiling – identifying segments<br />QMiner<br />System/services<br />Log <br />files<br />User profiles <br />Search fields<br />Search field values<br />Add state<br />Non-persistent Query<br />Get state<br />Get states<br />Update<br />Rename state<br />Delete state<br />Change Index<br />Exit<br />Videos articles<br />Editors<br />Advertisers<br />Authors<br />
  23. 23. Recommendation service(Recommender)<br />Ver1: Developed and tested for videolectures.net<br />Ver2: Operating at Bloomberg.com also for textual documents<br />Each video is scored from three directions:<br />Collaborative filtering<br />Category – VL taxonomy and improved SVM module working on optimized categories<br />Content – matching video against the user group’s history using all the enriched features<br />All three scores are combined into final score using weights estimated from the collected training data<br />Demonstration<br />
  24. 24. Content enrichment(enrycher)<br />Providing wider context to the document<br />… needed for efficient content mining and modeling<br />A set of Web services (http://enrycher.ijs.si)<br />Enriching a document with annotations presenting:<br />Extracted known concepts to the machine<br />Generated most descriptive sentences and dynamic abstracts<br />Semantic graph<br />Descriptions with existing ontologies<br />Links to the external sources (wikipedia, dmoz, dbpedia, openlink data)<br />Demonstration<br />
  25. 25. Transcription service(Transcriptor)<br />Prototype service with automatic rapid vocabulary training of the speech recognition engine using:<br />Lecture description<br />Slides information<br />Videolectures taxonomy<br />Enriched complementary content<br />Used for:<br />Transcription<br />Speech indexing<br />Video content search<br />Demonstration<br />
  26. 26. OCWC on videolectures.NET<br />Videolectures.NET offers to organisations:<br />Low cost service and channel<br />Unlimited video preservation and fixed urls<br />Organisation, project and personal videography pages<br />Access to the back-office editorial and tools<br />Many innovative viewing and content management features <br />Sustainable innovation through research projects<br />Demonstration<br />
  27. 27. Supporting OCWC<br />Video and courses content distribution through videolectures.net<br />User modeling and analytics <br />… on a distributed network of OCWC sites<br />… common access to the analytics services<br />Opening existing services for independent use<br />… transcription, categorisation, classification, content enrichment<br />OCWC website on videolectures.net:<br />… crawling, enriching, structuring, categorisingdistributed materials<br />… common curriculum support<br />
  28. 28. mitja.jermol@ijs.si – head of Center for knowledge transfer at JSI<br />marjana.plukavec@ijs.si – head of videolectures.net service<br />davor.orlic@ijs.si – main editor at videolectures.net<br />marko.grobelnik@ijs.si – head of the KT research group at JSI<br />John Shawe -Taylor (jst@cs.ucl.ac.uk) – K4A director<br />Colin de la Higuera (cdlh@univ-nantes.fr) – K4A director<br />Enrycher: http://enrycher.ijs.si<br />Recommender: http://videolectures.net<br />Contextual search: http://searchpoint.ijs.si<br />
  29. 29. Support slides<br />
  30. 30. A movement/competition …<br />
  31. 31. Competitive advantage<br />Access to lecture rooms and the three most active communities<br />Videos + slides + comments<br />Viewing features<br />Semantically enriched functionalities<br />Curriculum building and management support<br />Efficient back-office<br />Low cost and efficient service from recording to hosting<br />
  32. 32. Answering to challenges?<br />OpenCourseWare<br />MIT + >140 Universities<br />Curriculum, standards, quality of training<br />OpenCast<br />Berkeley, ETH + 40 top World Universities<br />OS for video recording at Universities<br />VL as CDCs<br />Knowledge4All foundation<br />Open CDN<br />Videolectures + JSI team<br />Using University Internet links and servers<br />
  33. 33. K4A founders<br />Europe – Pascal2 Network of Excellence:<br />University College London<br />Jozef Stefan Institute<br />University of Bristol <br />XEROX Research Centre Europe<br />ETH Zurich<br />CERN <br />US:<br />Berkeley + Opencast community<br />MIT + OCW consortium<br />Asia<br />Korea University + Network of South Korean Universities<br />Africa<br />Voices of Africa, Kenya + East Africa Universities <br />Kofi Annan Center for ICT and Development, Ghana + West Africa Universities<br />
  34. 34. K4A - reach<br />
  35. 35. Current development<br />OpenCDN – OSS/Collaborative Content Distribution Network<br />Automatic capturing, enriching, and synchronisation<br />Deep semantic search through videos<br />Accessibility, multilinguality<br />Knowledge extraction<br />Speech Indexing, Text Mining, Video mining, <br />Automatic ontology construction, <br />User Tracking and Profiling.<br />
  36. 36. SCOPE proposal<br />
  37. 37.
  38. 38. Visitors<br />
  39. 39. Knowledge 4 All<br />
  40. 40. Expressed interest<br />Internet Society Central America - Mexico<br />Individual organisations: Trento, ULJ, Zagreb, Southampton, CNRS, VTT, Max Planck, TU Graz, TUB, Oxford, Carlos III de Madrid, UVA,…<br />Commercial organisations: Springer Verlag, Elsevier Science<br />Governmental bodies: Slovenia, European Commission<br />
  41. 41. Development<br />Research<br />Added value (business) models<br />Emerging organisation models <br />Innovative tools <br />Operative<br />Methods (individual, collaborative, business)<br />Didactics, methodics, pedagogical models<br />Systems, standards, interoperability <br />Free, open access, high quality, scientific content <br />
  42. 42. Projects<br />In preparation:<br />AI Research institute for West Africa: implications for infrastructure, summer schools, course definition, interaction software, etc.<br />Education kiosks in Africa<br />Journal SCI registration – also in discussion with Springer about possible publication<br />Virtual conference<br />Virtual university<br />Web 2.5 for learning: support for discussion groups, research communities<br />
  43. 43. Long-term options<br />Innovation tube – industry/business use<br />Virtual universities and virtual programmes<br />Bottom-up, distributed, self-organised, <br />Authoring services<br />Support content enrichment for the content creators<br />Services:<br />On-the-fly personalisation and recommendation<br />Video scene recognition, automatic annotation and categorisation<br />Semantic and multilingual search<br />Accessibility, Internationalization (subtitles, transcripts)<br />Advanced presentation services with direct user involvement<br />Textual, graphical, video (audio) content integration services and enrichment<br />

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