NoTube: Metadata Enrichment

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NoTube: Metadata Enrichment

  1. 1. WP4:  TV  Data  Text  Enrichment   Pavel  Mihaylov  (OT)  and  partners  
  2. 2. Contents   Ontotext  and  its  role  in  the  project   WP4:  text,  audio  and  video   Goals  and  achievements   Demo   Conclusions  26-­‐27  March  2012   NoTube  3rd  review   2  
  3. 3. •  Seman5c  technology  developer  est.  in  2000   –  Staff:  65  employees  and  mulMple  contractors  •  Global  leader  in  semanMc  technologies   –  Seman5c  Databases:  high  performance  RDF  DBMS,  scalable  reasoning   –  Seman5c  Search:  text-­‐mining  (IE),  InformaMon  Retrieval  (IR)   –  Web  Mining:  focused  crawling,  screen  scraping,  data  fusion    •  Role  in  NoTube   –  WP4  leader   –  Seman5c  Enrichment   –  Experience  from  mulMple  European  projects   26-­‐27  March  2012   NoTube  3rd  review   3  
  4. 4. WP4:  Content  Enrichment   Content   Enrichment   •  Text:  EPGs,  programme   •  Adding  metadata   descripMons   •  Content  about  content   •  Audio   •  Video  26-­‐27  March  2012   NoTube  3rd  review   4  
  5. 5. Goal:  Text  enrichment   SemanMc   • Analyses  short  or  free-­‐text   text  segments   annotaMon   • Extends  them  with  further   component   world  knowledge   Recognising  items   of  interest  in  text   Assigning  links  to   Linked  Open  Data  26-­‐27  March  2012   NoTube  3rd  review   5  
  6. 6. Goal:  Text  enrichment  (2)   Live  at  the  Apollo  2/6   Not  Going  Out  star  Lee  Mack  presents   sets  from  American  comic  Rich  Hall   and  Scotland’s  very  own  Danny  Bhoy.  26-­‐27  March  2012   NoTube  3rd  review   6  
  7. 7. Goal:  MulMlingual   English   Turkish   German   Korean   Italian   TV   world   French   Dutch   Bulgarian   Arabic  26-­‐27  March  2012   NoTube  3rd  review   7  
  8. 8. Goal:  Graph  enrichment   Exploit  relaMons  in   SemanMc  Repository  • EnMMes   • A  richer  set   extracted   • Follow  a   of  enMMes   from  text   chain  of  LOD   predicates   Build  upon  basic   Enrich  the  basic   enrichment   enrichment   26-­‐27  March  2012   NoTube  3rd  review   8  
  9. 9. Goal:  Graph  enrichment  (2)  26-­‐27  March  2012   NoTube  3rd  review   9  
  10. 10. Goal:  Graph  enrichment  (3)   Classes  to  enrich   • Film   • TelevisionShow   • Work   • Band/MusicalArMst   • Actor   • Place  26-­‐27  March  2012   NoTube  3rd  review   10  
  11. 11. Film  enrichment  •   Film  class  •   At  least  one  common  indirect  relaMon   26-­‐27  March  2012   NoTube  3rd  review   11  
  12. 12. TelevisionShow  enrichment  •   TelevisionShow  class  •   At  least  two  common  indirect  relaMons   26-­‐27  March  2012   NoTube  3rd  review   12  
  13. 13. Work  enrichment  •   Work  except  Film  and  TelevisionShow  •   At  least  one  common  indirect  rela?on   26-­‐27  March  2012   NoTube  3rd  review   13  
  14. 14. Band/MusicalArMst  enrichment  •   Band  and  MusicalAr5st  •   At  least  one  direct  rela?on   26-­‐27  March  2012   NoTube  3rd  review   14  
  15. 15. Actor  enrichment  •   Actor  class  •   Starring  relaMon  from  at  least  two  common  Works   26-­‐27  March  2012   NoTube  3rd  review   15  
  16. 16. Place  enrichment  •   Place  class  •   At  least  one  direct  rela?on   26-­‐27  March  2012   NoTube  3rd  review   16  
  17. 17. Lupedia  Text  enrichment  service   •  Input:  plain  text,  e.g.  programme  descripMons   •  Output:  Linked  Open  Data  enrichment   •  XML,  json,  RDFa   •  Features:   •  MulMlingual   •  Graph  enrichment   •  MulMple  vocabularies   •  Configurable   •  Fast   26-­‐27  March  2012   NoTube  3rd  review   17  
  18. 18. Lupedia  over  Mme   DisambiguaMon   Predicate,   Most  specific   heurisMcs  and   class  in  output   class  weights   MulMple   HeurisMcs   vocabularies   New  matching   Selectable   opMons  and   vocabulary   filters  MulMlingualism   Becer   Graph   service   enrichment   26-­‐27  March  2012   NoTube  3rd  review   18  
  19. 19. EvaluaMon  summary   Lupedia  compared  to  OpenCalais  and  AlchemyAPI   Lupedia  is  a  unique  service   •  Only  two  other  similar  services   •  Much  becer  coverage  than  either  of  them   •  Comparable  precision   •  Custom  vocabularies  &  filters   •  Tuned  to  TV  domain  26-­‐27  March  2012   NoTube  3rd  review   19  
  20. 20. Links  to  other  WPs   •  EnMty  URIs  point   •  Lupedia  in  NLP   •  Lupedia  in   to  WP1  models   based  profiling   SmartLink  and   and  enrichment   Watch’n’Buy   WP1   WP3   WP5   •  IntegraMon,   •  7a  news   enrichment  in   enrichment   demo  apps   •  7c  programme   descripMon   enrichment   WP6   WP7  26-­‐27  March  2012   NoTube  3rd  review   20  
  21. 21. Lupedia  demo   http://lupedia.ontotext.com/26-­‐27  March  2012   NoTube  3rd  review   21  
  22. 22. Emerging  compeMMon   Lupedia   Yahoo   WikiMachine   En5tyPedia  LOD  output   DBpedia  &   DBpedia   ?   LinkedMDB  MulMlingual   ar,  bg,  nl,  en,   en,  zh   en,  pt,  it   ?   fr,  de,  it,  ko,  tr  Confidence   yes   yes   yes   ?  Graph   yes   yes*   no   ?  enrichment  Remark   Tuned  to  TV   No  direct  access  to   Too  generic,   Not  yet   domain,  one  of   LOD,  graph   precision  seems   released   the  pioneers   enrichment  too   lower   abstract   26-­‐27  March  2012   NoTube  3rd  review   22  
  23. 23. Lessons  &  Impact  Lessons  learnt:   Lupedia  recognised  •  Emerging  similar   as  one  of  the  major   services  clearly  show   players  and   Various  partners   the  need  for  such   included  in  NERD:   services   willing  to  use  •  Coverage  and  language   •  AggregaMng  named   Lupedia  in  other   support  are  important   enMty  services  and   projects   comparing  their   performance   •  hcp://nerd.eurecom.fr   26-­‐27  March  2012   NoTube  3rd  review   23  
  24. 24. Life  aker  NoTube   Possibly  an   Will  be  kept   OpenCalais-­‐ alive  as  a   like  service  in  demo  service   future   Closed  source   26-­‐27  March  2012   NoTube  3rd  review   24  
  25. 25. QuesMons?  26-­‐27  March  2012   NoTube  3rd  review   25  

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