recolha colaborativa de informação

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Presentation on Collaborative and Human-Computer Information Retrival on the Seminar of Intelligent Knowledge Management Systems class of the Informatics Engineering master at the Faculty of Science and Technology of University of Coimbra, Portugal.

TRANSCRIPT

  • 1. Recolha colaborativa de informao
    Pedro Machado Santa
    Sistemas Inteligentes de Gesto do Conhecimento
    Departamento de Engenharia Informtica da Universidade de Coimbra
    17 de Maio 2011
    1
  • 2. Sumrio
    Desafios recolha de informao
    Human-ComputerInformationRetrieval
    CollaborativeInformationRetrieval
    Concluses e Consideraes finais
    2
  • 3. Tendncias do contedo
    Propriedades do contedo (e pesquisas?)
    • Para alm do texto
    • 4. Imagens, musica, cdigo, streams, estatsticas, etc
    • 5. Multimedia, multilingual
    • 6. Dinmico
    • 7. Temporal (ex., blogs, wikis, sensor streams)
    • 8. Condicional (ex, comuted links, recomendaes)
    Relaes entre o contedo
    • Hiperligaes, novosmetadados, agregaes
    • 9. LivrariasDigitais, colecespessoais (contedocurado?)
    Contedoadquirehistria -> Recolha de contexto
    3
  • 10. 4
    Algoritmo de Matching
    Espao de Documentos
    Espao de Pesquisas
    Surrogates
    Surrogates
    Termos
    Pesquisa A
    Amostra
    Amostra
    Vectores
    Pesquisa B
    Etc.
    Etc.
    A powerful paradigm that has driven IR R&D for half a century .
    Evaluation metric is effectiveness of the match. (e.g., recall and precision).
    G. Marchionini (2006)
  • 11. 5
    http://www.flickr.com/photos/verbeeldingskr8/3638834128
  • 12. Automatic classification works best when its application is supported by humans with knowledge of the domain and the techniques at hand.
    G. Marchionini (2006)
    6
  • 13. 7
  • 14. Human-ComputerInformationRetrieval
    8
  • 15. 9
    Human-ComputerInteraction
    InformationRetrieval
    HCIR
  • 16. Humancomputer information retrieval (HCIR) is the study of information retrieval techniques that bring human intelligence into the searching process.
    J. M. Fernandez-Lunaet al. (2009)
    10
  • 17. IR from the perspective of an active human with information needs, information skills, powerful IR resources (that include other humans) situated in global and local connected communities all of which evolve over time
    G. Marchionini (2006)
    11
  • 18. 12
  • 19. Papel dos utilizadores em HCIR
    A Web e oscomandos de TV/EPGs legitimizaram o browsing como human-controlled information seeking (Marchionini,2006)
    Utilizadores mais como seekers de compreeso, do que pessoas com necessidades de informao
    Para fazeruso do intelecto e esforohumano, osutilizadorestmqueassumirresponsabilidades almdapesquisanica de duaspalavras
    Os avanos tecnolgicos e o aumento da literacia tecnolgica permitem-nos aproveitar a inteligncia do informationseeker
    • Ao invs da dependncia apenas de algoritmos de matching, o foco vira-se para o flow das representaes e aces enquanto as pessoas vo usando e reflectindo sobre estas novas ferramentas e recursos de informao
    13
  • 20. CollaborativeInformationretrieval
    14
  • 21. CIR
    HCIR
    15
    ComputerSupportedCooperativeWork
    Human-ComputerInteraction
    InformationRetrieval
  • 22. 16
  • 23. a field concerned with the real-time, explicit collaboration which occurs when multiple users search together to satisfy a shared information need. This collaboration can take place either with he users working remotely, or, in a co-located setting
    C. Foley (2008)
    17
  • 24. any activity that collectively resolves an information problem taken by members of a work-team
    Dumaiset al. (2000)
    18
  • 25. Funcionalidades comuns em CIR
    Suporte colaborao e cooperao sobre uma necessidade comum de informao
    • Partilha de conhecimento
    • 26. Diviso e segmentao de tarefas/trabalho
    Cooperao sncrona ou assncrona
    Explcita
    • Os utilizadores tm que ter conscincia das actividades de colaborao
    Agnstica ao nvel de localizao
    • As actividades de colaborao podem ser co-localizadas ou distribudas
    19
  • 27. Concluses e Consideraes Finais
    20
  • 28. 21
    ?
  • 29. Social InformationRetrieval?
    22
  • 30. 23
    http://hpc.isti.cnr.it/?p=233
  • 31. Referncias
    Dumais, S., Grudin, J., Bruce, H., Fidel, R., Poltrock, S., & Pejtersen, A. M. (2000). Collaborative information retrieval (cir). The New Review of Information Behaviour Research, 1, Pages 235247.
    Foley, C. (2008). Division of labour and sharing of knowledge for synchronous collaborative information retrieval. Ph.D. Thesis, Dublin City University School of Computing and Centre for Digital Video Processing, Ireland.
    Juan M. Fernandez-Luna, Juan F. Huete, Ramiro Perez-Vazquez, Julio C. Rodri'guez-Cano, (2010). CIRLab: A groupwareframework for collaborativeinformationretrievalresearch.InformationProcessing & Management, Volume 46, Issue 6, CollaborativeInformationSeeking, November 2010, Pages 749-761
    Marchionini, G., (2007) Human-computer information retrieval lecture.InformationInLife Digital Video Series, UniversityofNorth Carolina atChapelHill, http://www.youtube.com/watch?v=noMQjrACHxQ
    Marchionini, G., (2006) Toward human-computer information retrieval. Bulletin of the American Society for Information Science and Technology, Volume 32, Issue 5, June/July 2006, Pages 20-22
    24
  • 32. Questes e Discusso
    Recolha de Informao Colaborativa
    Pedro Machado Santa
    pgms@student.dei.uc.pt
    http://student.dei.uc.pt/~pgms
    Departamento de Engenharia Informtica da Universidade de Coimbra
    25

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