Search (30 results, page 1 of 2)

  • × author_ss:"Järvelin, K."
  1. Saastamoinen, M.; Järvelin, K.: Search task features in work tasks of varying types and complexity (2017) 0.03 
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    Abstract
    Information searching in practice seldom is an end in itself. In work, work task (WT) performance forms the context, which information searching should serve. Therefore, information retrieval (IR) systems development/evaluation should take the WT context into account. The present paper analyzes how WT features: task complexity and task types, affect information searching in authentic work: the types of information needs, search processes, and search media. We collected data on 22 information professionals in authentic work situations in three organization types: city administration, universities, and companies. The data comprise 286 WTs and 420 search tasks (STs). The data include transaction logs, video recordings, daily questionnaires, interviews. and observation. The data were analyzed quantitatively. Even if the participants used a range of search media, most STs were simple throughout the data, and up to 42% of WTs did not include searching. WT's effects on STs are not straightforward: different WT types react differently to WT complexity. Due to the simplicity of authentic searching, the WT/ST types in interactive IR experiments should be reconsidered.
    Date
    17. 2.1997 18:25:04
  2. Näppilä, T.; Järvelin, K.; Niemi, T.: ¬A tool for data cube construction from structurally heterogeneous XML documents (2008) 0.02 
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    Date
    17. 2.1997 18:25:04
    9. 2.2008 17:22:42
  3. Vakkari, P.; Järvelin, K.; Chang, Y.-W.: ¬The association of disciplinary background with the evolution of topics and methods in Library and Information Science research 1995-2015 (2023) 0.02 
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    Date
    17. 2.1997 18:25:04
    22. 6.2023 18:15:06
  4. Kristensen, J.; Järvelin, K.: ¬The effectiveness of a searching thesaurus in free-text searching in a full-text database (1990) 0.01 
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    Source
    International classification. 17(1990), S.77-84
  5. Niemi, T.; Junkkari, M.; Järvelin, K.; Viita, S.: Advanced query language for manipulating complex entities (2004) 0.01 
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    Date
    17. 2.1997 18:25:04
  6. Pirkola, A.; Hedlund, T.; Keskustalo, H.; Järvelin, K.: Dictionary-based cross-language information retrieval : problems, methods, and research findings (2001) 0.01 
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    Date
    25. 8.2005 17:50:04
  7. Järvelin, K.; Kristensen, J.; Niemi, T.; Sormunen, E.; Keskustalo, H.: ¬A deductive data model for query expansion (1996) 0.01 
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    Source
    Proceedings of the 19th Annual International ACM SIGIR Conference on Research and Development in Information Retrieval (ACM SIGIR '96), Zürich, Switzerland, August 18-22, 1996. Eds.: H.P. Frei et al
  8. Järvelin, K.; Ingwersen, P.: User-oriented and cognitive models of information retrieval (2009) 0.01 
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    Date
    5. 8.2010 17:33:43
    27. 8.2011 14:32:17
  9. Niemi, T.; Hirvonen, L.; Järvelin, K.: Multidimensional data model and query language for informetrics (2003) 0.01 
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    Date
    17. 2.1997 18:25:04
    17. 8.2003 14:14:52
  10. Pirkola, A.; Puolamäki, D.; Järvelin, K.: Applying query structuring in cross-language retrieval (2003) 0.01 
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    Date
    17. 2.1997 18:25:04
    27.12.2007 17:37:28
  11. Lehtokangas, R.; Keskustalo, H.; Järvelin, K.: Experiments with transitive dictionary translation and pseudo-relevance feedback using graded relevance assessments (2008) 0.01 
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    Date
    17. 2.1997 18:25:04
    9. 2.2008 17:30:34
  12. Järvelin, K.; Persson, O.: ¬The DCI-index : discounted cumulated impact-based research evaluation (2008) 0.01 
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    Date
    17. 2.1997 18:25:04
  13. Saarikoski, J.; Laurikkala, J.; Järvelin, K.; Juhola, M.: ¬A study of the use of self-organising maps in information retrieval (2009) 0.00 
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    Date
    17. 5.2009 18:49:17
  14. Tuomaala, O.; Järvelin, K.; Vakkari, P.: Evolution of library and information science, 1965-2005 : content analysis of journal articles (2014) 0.00 
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    Date
    17. 2.1997 18:25:04
    17. 6.2014 12:35:37
  15. Järvelin, K.; Vakkari, P.: LIS research across 50 years: content analysis of journal articles : offering an information-centric conception of memes (2022) 0.00 
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    Date
    17. 9.2022 18:52:17
  16. Pirkola, A.; Järvelin, K.: Employing the resolution power of search keys (2001) 0.00 
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    17. 2.1997 18:25:04
  17. Pharo, N.; Järvelin, K.: "Irrational" searchers and IR-rational researchers (2006) 0.00 
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    17. 2.1997 18:25:04
  18. Järvelin, K.: ¬An analysis of two approaches in information retrieval : from frameworks to study designs (2007) 0.00 
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    17. 2.1997 18:25:04
  19. Halttunen, K.; Järvelin, K.: Assessing learning outcomes in two information retrieval learning environments (2005) 0.00 
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    17. 2.1997 18:25:04
  20. Hansen, P.; Järvelin, K.: Collaborative Information Retrieval in an information-intensive domain (2005) 0.00 
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    17. 2.1997 18:25:04

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