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Utilizing Mind-Maps for Information Retrieval and User Modelling

Utilizing Mind-Maps for Information Retrieval and User Modelling. Joeran Beel, Stefan Langer, Marcel Genzmehr, Bela Gipp. Agenda. Introduction to mind-maps Ideas for utilizing mind-maps beyond their original purpose Prototype for mind-map-based user modeling. Doc ear Team.

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Utilizing Mind-Maps for Information Retrieval and User Modelling

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  1. Utilizing Mind-Maps for Information Retrieval and User Modelling Joeran Beel, Stefan Langer, Marcel Genzmehr, Bela Gipp www.docear.org Docear – The Academic Literature Suite

  2. Agenda • Introduction to mind-maps • Ideas for utilizing mind-maps beyond their original purpose • Prototype for mind-map-based user modeling www.docear.org Docear – The Academic Literature Suite

  3. Docear Team www.docear.org Docear – The Academic Literature Suite

  4. Docear (www.docear.org) www.docear.org Docear – The Academic Literature Suite

  5. 1. IntroductiontoMind-Maps www.docear.org Docear – The Academic Literature Suite

  6. Example Mind-Map: Paper Draft www.docear.org Docear – The Academic Literature Suite

  7. Example Mind-Map: Paper Draft www.docear.org Docear – The Academic Literature Suite

  8. Example Mind-Map: Paper Draft www.docear.org Docear – The Academic Literature Suite

  9. Example Mind-Map: Paper Draft www.docear.org Docear – The Academic Literature Suite

  10. Example Mind-Map: Paper Draft www.docear.org Docear – The Academic Literature Suite

  11. Example Mind-Map: Paper Draft www.docear.org Docear – The Academic Literature Suite

  12. Example Mind-Map: Paper Draft www.docear.org Docear – The Academic Literature Suite

  13. Example Mind-Map: Paper Draft www.docear.org Docear – The Academic Literature Suite

  14. Example Mind-Map: Paper Draft www.docear.org Docear – The Academic Literature Suite

  15. Example: Conference & Journal Overview www.docear.org Docear – The Academic Literature Suite

  16. Example: Career Planning www.docear.org Docear – The Academic Literature Suite

  17. Research Question • Howtoutilize mind-maps beyondtheir original purpose? www.docear.org Docear – The Academic Literature Suite

  18. 2. Ideas for Mind-Map based IR Applications And An Analysis oftheFeasibility www.docear.org Docear – The Academic Literature Suite

  19. Ideas, Overview • Search Engines for Mind-Maps • Document Indexing / Anchor Text Analysis • Document Relatedness • Document Summarization • Impact Analysis • Trend Analysis • Semantic Analysis • User Modelling www.docear.org Docear – The Academic Literature Suite

  20. Illustration ofsomeideas • Anchor Text Analysis / Website Indexing • Document Relatedness / Distance Analysis • Semantic Analysis • User Modeling www.docear.org Docear – The Academic Literature Suite

  21. Number of (Public) Mind-Maps & Users • Dozens of mind-mapping tools • 2 million active mind-mapping users • 5 million new mind-maps every year • 300,000+ public mind-maps www.docear.org Docear – The Academic Literature Suite

  22. Example of a Mind-Map Gallery www.docear.org Docear – The Academic Literature Suite

  23. Content Analysis • Analysis of 19,379 mind-maps • Number of nodes per mind-map • Average = a few dozen • Maximum = a few thousand • 63.88% contain no links, • Those who contain links, contain typically only few • Ideas requiring links are less feasible • Text-based ideas are feasible www.docear.org Docear – The Academic Literature Suite

  24. Users’ Acceptance • Up to 61% acceptance for user modeling and recommendations • Around 10% acceptance for other ideas • User modeling is the most feasible idea www.docear.org Docear – The Academic Literature Suite

  25. 3. User Modeling Prototype A Research Paper Recommender System www.docear.org Docear – The Academic Literature Suite

  26. How to do the user modeling? ? www.docear.org Docear – The Academic Literature Suite

  27. User Modeling Approaches • Stereotype ApproachRecommendbooksthatweassumetobe relevant forresearchers • Content BasedFiltering • Single Node I:Terms ofthe last modifiednode (Recs on eachmodification) • Single Node II: Terms ofthe last modifiednode (Recseveryfewdays) • Single Mind-Map: All termsofthe last modified mind-map • All Mind-Maps: All termsof all mind-maps www.docear.org Docear – The Academic Literature Suite

  28. Recommender System www.docear.org Docear – The Academic Literature Suite

  29. Results I • Strong differences depending on the approach • Overall, reasonable CTR, despite the trivial approaches www.docear.org Docear – The Academic Literature Suite

  30. Results II • Strong differencesdepending on thespecificparameters (forthe „All Mind-Maps“ approach) www.docear.org Docear – The Academic Literature Suite

  31. Questions? Download Docear: http://www.docear.org More research: http://www.docear.org/docear/our-publications/ www.docear.org Docear – The Academic Literature Suite

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