Search (28 results, page 1 of 2)

  • × author_ss:"Järvelin, K."
  1. Järvelin, K.; Kristensen, J.; Niemi, T.; Sormunen, E.; Keskustalo, H.: ¬A deductive data model for query expansion (1996) 0.02 
    0.024279177 = product of:
  0.060697943 = sum of:
    0.018028209 = weight(_text_:18 in 2230) [ClassicSimilarity], result of:
      0.018028209 = score(doc=2230,freq=2.0), product of:
        0.11947718 = queryWeight, product of:
          2.2762048 = idf(docFreq=12340, maxDocs=44218)
          0.052489646 = queryNorm
        0.15089248 = fieldWeight in 2230, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          2.2762048 = idf(docFreq=12340, maxDocs=44218)
          0.046875 = fieldNorm(doc=2230)
    0.042669736 = weight(_text_:22 in 2230) [ClassicSimilarity], result of:
      0.042669736 = score(doc=2230,freq=2.0), product of:
        0.1838098 = queryWeight, product of:
          3.5018296 = idf(docFreq=3622, maxDocs=44218)
          0.052489646 = queryNorm
        0.23214069 = fieldWeight in 2230, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          3.5018296 = idf(docFreq=3622, maxDocs=44218)
          0.046875 = fieldNorm(doc=2230)
  0.4 = coord(2/5)
    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
  2. Saastamoinen, M.; Järvelin, K.: Search task features in work tasks of varying types and complexity (2017) 0.02 
    0.024279177 = product of:
  0.060697943 = sum of:
    0.018028209 = weight(_text_:18 in 3589) [ClassicSimilarity], result of:
      0.018028209 = score(doc=3589,freq=2.0), product of:
        0.11947718 = queryWeight, product of:
          2.2762048 = idf(docFreq=12340, maxDocs=44218)
          0.052489646 = queryNorm
        0.15089248 = fieldWeight in 3589, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          2.2762048 = idf(docFreq=12340, maxDocs=44218)
          0.046875 = fieldNorm(doc=3589)
    0.042669736 = weight(_text_:22 in 3589) [ClassicSimilarity], result of:
      0.042669736 = score(doc=3589,freq=2.0), product of:
        0.1838098 = queryWeight, product of:
          3.5018296 = idf(docFreq=3622, maxDocs=44218)
          0.052489646 = queryNorm
        0.23214069 = fieldWeight in 3589, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          3.5018296 = idf(docFreq=3622, maxDocs=44218)
          0.046875 = fieldNorm(doc=3589)
  0.4 = coord(2/5)
    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
  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 
    0.022721825 = product of:
  0.05680456 = sum of:
    0.021246448 = weight(_text_:18 in 998) [ClassicSimilarity], result of:
      0.021246448 = score(doc=998,freq=4.0), product of:
        0.11947718 = queryWeight, product of:
          2.2762048 = idf(docFreq=12340, maxDocs=44218)
          0.052489646 = queryNorm
        0.1778285 = fieldWeight in 998, product of:
          2.0 = tf(freq=4.0), with freq of:
            4.0 = termFreq=4.0
          2.2762048 = idf(docFreq=12340, maxDocs=44218)
          0.0390625 = fieldNorm(doc=998)
    0.035558112 = weight(_text_:22 in 998) [ClassicSimilarity], result of:
      0.035558112 = score(doc=998,freq=2.0), product of:
        0.1838098 = queryWeight, product of:
          3.5018296 = idf(docFreq=3622, maxDocs=44218)
          0.052489646 = queryNorm
        0.19345059 = fieldWeight in 998, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          3.5018296 = idf(docFreq=3622, maxDocs=44218)
          0.0390625 = fieldNorm(doc=998)
  0.4 = coord(2/5)
    Date
    17. 2.1997 18:25:04
    22. 6.2023 18:15:06
  4. Näppilä, T.; Järvelin, K.; Niemi, T.: ¬A tool for data cube construction from structurally heterogeneous XML documents (2008) 0.02 
    0.020232648 = product of:
  0.05058162 = sum of:
    0.015023507 = weight(_text_:18 in 1369) [ClassicSimilarity], result of:
      0.015023507 = score(doc=1369,freq=2.0), product of:
        0.11947718 = queryWeight, product of:
          2.2762048 = idf(docFreq=12340, maxDocs=44218)
          0.052489646 = queryNorm
        0.12574373 = fieldWeight in 1369, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          2.2762048 = idf(docFreq=12340, maxDocs=44218)
          0.0390625 = fieldNorm(doc=1369)
    0.035558112 = weight(_text_:22 in 1369) [ClassicSimilarity], result of:
      0.035558112 = score(doc=1369,freq=2.0), product of:
        0.1838098 = queryWeight, product of:
          3.5018296 = idf(docFreq=3622, maxDocs=44218)
          0.052489646 = queryNorm
        0.19345059 = fieldWeight in 1369, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          3.5018296 = idf(docFreq=3622, maxDocs=44218)
          0.0390625 = fieldNorm(doc=1369)
  0.4 = coord(2/5)
    Date
    17. 2.1997 18:25:04
    9. 2.2008 17:22:42
  5. Niemi, T.; Junkkari, M.; Järvelin, K.; Viita, S.: Advanced query language for manipulating complex entities (2004) 0.01 
    0.008413165 = product of:
  0.04206582 = sum of:
    0.04206582 = weight(_text_:18 in 4218) [ClassicSimilarity], result of:
      0.04206582 = score(doc=4218,freq=2.0), product of:
        0.11947718 = queryWeight, product of:
          2.2762048 = idf(docFreq=12340, maxDocs=44218)
          0.052489646 = queryNorm
        0.35208246 = fieldWeight in 4218, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          2.2762048 = idf(docFreq=12340, maxDocs=44218)
          0.109375 = fieldNorm(doc=4218)
  0.2 = coord(1/5)
    Date
    17. 2.1997 18:25:04
  6. Järvelin, K.; Persson, O.: ¬The DCI-index : discounted cumulated impact-based research evaluation (2008) 0.01 
    0.0067988634 = product of:
  0.033994317 = sum of:
    0.033994317 = weight(_text_:18 in 2332) [ClassicSimilarity], result of:
      0.033994317 = score(doc=2332,freq=4.0), product of:
        0.11947718 = queryWeight, product of:
          2.2762048 = idf(docFreq=12340, maxDocs=44218)
          0.052489646 = queryNorm
        0.2845256 = fieldWeight in 2332, product of:
          2.0 = tf(freq=4.0), with freq of:
            4.0 = termFreq=4.0
          2.2762048 = idf(docFreq=12340, maxDocs=44218)
          0.0625 = fieldNorm(doc=2332)
  0.2 = coord(1/5)
    Date
    17. 2.1997 18:25:04
    23. 2.2009 18:16:11
  7. Pharo, N.; Järvelin, K.: "Irrational" searchers and IR-rational researchers (2006) 0.01 
    0.0050991476 = product of:
  0.025495738 = sum of:
    0.025495738 = weight(_text_:18 in 4922) [ClassicSimilarity], result of:
      0.025495738 = score(doc=4922,freq=4.0), product of:
        0.11947718 = queryWeight, product of:
          2.2762048 = idf(docFreq=12340, maxDocs=44218)
          0.052489646 = queryNorm
        0.2133942 = fieldWeight in 4922, product of:
          2.0 = tf(freq=4.0), with freq of:
            4.0 = termFreq=4.0
          2.2762048 = idf(docFreq=12340, maxDocs=44218)
          0.046875 = fieldNorm(doc=4922)
  0.2 = coord(1/5)
    Date
    17. 2.1997 18:25:04
    11. 2.2006 18:33:26
  8. Ahlgren, P.; Järvelin, K.: Measuring impact of twelve information scientists using the DCI index (2010) 0.01 
    0.0050991476 = product of:
  0.025495738 = sum of:
    0.025495738 = weight(_text_:18 in 3593) [ClassicSimilarity], result of:
      0.025495738 = score(doc=3593,freq=4.0), product of:
        0.11947718 = queryWeight, product of:
          2.2762048 = idf(docFreq=12340, maxDocs=44218)
          0.052489646 = queryNorm
        0.2133942 = fieldWeight in 3593, product of:
          2.0 = tf(freq=4.0), with freq of:
            4.0 = termFreq=4.0
          2.2762048 = idf(docFreq=12340, maxDocs=44218)
          0.046875 = fieldNorm(doc=3593)
  0.2 = coord(1/5)
    Date
    17. 2.1997 18:25:04
    19. 6.2010 18:26:35
  9. Järvelin, K.; Persson, O.: ¬The DCI index : discounted cumulated impact-based research evaluation (2008) 0.00 
    0.0042492896 = product of:
  0.021246448 = sum of:
    0.021246448 = weight(_text_:18 in 2694) [ClassicSimilarity], result of:
      0.021246448 = score(doc=2694,freq=4.0), product of:
        0.11947718 = queryWeight, product of:
          2.2762048 = idf(docFreq=12340, maxDocs=44218)
          0.052489646 = queryNorm
        0.1778285 = fieldWeight in 2694, product of:
          2.0 = tf(freq=4.0), with freq of:
            4.0 = termFreq=4.0
          2.2762048 = idf(docFreq=12340, maxDocs=44218)
          0.0390625 = fieldNorm(doc=2694)
  0.2 = coord(1/5)
    Date
    17. 2.1997 18:25:04
    23. 2.2009 18:15:55
  10. Pirkola, A.; Järvelin, K.: Employing the resolution power of search keys (2001) 0.00 
    0.0042065824 = product of:
  0.02103291 = sum of:
    0.02103291 = weight(_text_:18 in 5907) [ClassicSimilarity], result of:
      0.02103291 = score(doc=5907,freq=2.0), product of:
        0.11947718 = queryWeight, product of:
          2.2762048 = idf(docFreq=12340, maxDocs=44218)
          0.052489646 = queryNorm
        0.17604123 = fieldWeight in 5907, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          2.2762048 = idf(docFreq=12340, maxDocs=44218)
          0.0546875 = fieldNorm(doc=5907)
  0.2 = coord(1/5)
    Date
    17. 2.1997 18:25:04
  11. Niemi, T.; Hirvonen, L.; Järvelin, K.: Multidimensional data model and query language for informetrics (2003) 0.00 
    0.003605642 = product of:
  0.018028209 = sum of:
    0.018028209 = weight(_text_:18 in 1753) [ClassicSimilarity], result of:
      0.018028209 = score(doc=1753,freq=2.0), product of:
        0.11947718 = queryWeight, product of:
          2.2762048 = idf(docFreq=12340, maxDocs=44218)
          0.052489646 = queryNorm
        0.15089248 = fieldWeight in 1753, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          2.2762048 = idf(docFreq=12340, maxDocs=44218)
          0.046875 = fieldNorm(doc=1753)
  0.2 = coord(1/5)
    Date
    17. 2.1997 18:25:04
  12. Järvelin, K.: ¬An analysis of two approaches in information retrieval : from frameworks to study designs (2007) 0.00 
    0.003605642 = product of:
  0.018028209 = sum of:
    0.018028209 = weight(_text_:18 in 326) [ClassicSimilarity], result of:
      0.018028209 = score(doc=326,freq=2.0), product of:
        0.11947718 = queryWeight, product of:
          2.2762048 = idf(docFreq=12340, maxDocs=44218)
          0.052489646 = queryNorm
        0.15089248 = fieldWeight in 326, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          2.2762048 = idf(docFreq=12340, maxDocs=44218)
          0.046875 = fieldNorm(doc=326)
  0.2 = coord(1/5)
    Date
    17. 2.1997 18:25:04
  13. Halttunen, K.; Järvelin, K.: Assessing learning outcomes in two information retrieval learning environments (2005) 0.00 
    0.003605642 = product of:
  0.018028209 = sum of:
    0.018028209 = weight(_text_:18 in 996) [ClassicSimilarity], result of:
      0.018028209 = score(doc=996,freq=2.0), product of:
        0.11947718 = queryWeight, product of:
          2.2762048 = idf(docFreq=12340, maxDocs=44218)
          0.052489646 = queryNorm
        0.15089248 = fieldWeight in 996, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          2.2762048 = idf(docFreq=12340, maxDocs=44218)
          0.046875 = fieldNorm(doc=996)
  0.2 = coord(1/5)
    Date
    17. 2.1997 18:25:04
  14. Hansen, P.; Järvelin, K.: Collaborative Information Retrieval in an information-intensive domain (2005) 0.00 
    0.003605642 = product of:
  0.018028209 = sum of:
    0.018028209 = weight(_text_:18 in 1040) [ClassicSimilarity], result of:
      0.018028209 = score(doc=1040,freq=2.0), product of:
        0.11947718 = queryWeight, product of:
          2.2762048 = idf(docFreq=12340, maxDocs=44218)
          0.052489646 = queryNorm
        0.15089248 = fieldWeight in 1040, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          2.2762048 = idf(docFreq=12340, maxDocs=44218)
          0.046875 = fieldNorm(doc=1040)
  0.2 = coord(1/5)
    Date
    17. 2.1997 18:25:04
  15. Toivonen, J.; Pirkola, A.; Keskustalo, H.; Visala, K.; Järvelin, K.: Translating cross-lingual spelling variants using transformation rules (2005) 0.00 
    0.003605642 = product of:
  0.018028209 = sum of:
    0.018028209 = weight(_text_:18 in 1052) [ClassicSimilarity], result of:
      0.018028209 = score(doc=1052,freq=2.0), product of:
        0.11947718 = queryWeight, product of:
          2.2762048 = idf(docFreq=12340, maxDocs=44218)
          0.052489646 = queryNorm
        0.15089248 = fieldWeight in 1052, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          2.2762048 = idf(docFreq=12340, maxDocs=44218)
          0.046875 = fieldNorm(doc=1052)
  0.2 = coord(1/5)
    Date
    17. 2.1997 18:25:04
  16. Pirkola, A.; Puolamäki, D.; Järvelin, K.: Applying query structuring in cross-language retrieval (2003) 0.00 
    0.003605642 = product of:
  0.018028209 = sum of:
    0.018028209 = weight(_text_:18 in 1074) [ClassicSimilarity], result of:
      0.018028209 = score(doc=1074,freq=2.0), product of:
        0.11947718 = queryWeight, product of:
          2.2762048 = idf(docFreq=12340, maxDocs=44218)
          0.052489646 = queryNorm
        0.15089248 = fieldWeight in 1074, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          2.2762048 = idf(docFreq=12340, maxDocs=44218)
          0.046875 = fieldNorm(doc=1074)
  0.2 = coord(1/5)
    Date
    17. 2.1997 18:25:04
  17. Lehtokangas, R.; Keskustalo, H.; Järvelin, K.: Experiments with transitive dictionary translation and pseudo-relevance feedback using graded relevance assessments (2008) 0.00 
    0.003605642 = product of:
  0.018028209 = sum of:
    0.018028209 = weight(_text_:18 in 1349) [ClassicSimilarity], result of:
      0.018028209 = score(doc=1349,freq=2.0), product of:
        0.11947718 = queryWeight, product of:
          2.2762048 = idf(docFreq=12340, maxDocs=44218)
          0.052489646 = queryNorm
        0.15089248 = fieldWeight in 1349, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          2.2762048 = idf(docFreq=12340, maxDocs=44218)
          0.046875 = fieldNorm(doc=1349)
  0.2 = coord(1/5)
    Date
    17. 2.1997 18:25:04
  18. Pharo, N.; Järvelin, K.: ¬The SST method : a tool for analysing Web information search processes (2004) 0.00 
    0.0030047016 = product of:
  0.015023507 = sum of:
    0.015023507 = weight(_text_:18 in 2533) [ClassicSimilarity], result of:
      0.015023507 = score(doc=2533,freq=2.0), product of:
        0.11947718 = queryWeight, product of:
          2.2762048 = idf(docFreq=12340, maxDocs=44218)
          0.052489646 = queryNorm
        0.12574373 = fieldWeight in 2533, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          2.2762048 = idf(docFreq=12340, maxDocs=44218)
          0.0390625 = fieldNorm(doc=2533)
  0.2 = coord(1/5)
    Date
    17. 2.1997 18:25:04
  19. Sormunen, E.; Kekäläinen, J.; Koivisto, J.; Järvelin, K.: Document text characteristics affect the ranking of the most relevant documents by expanded structured queries (2001) 0.00 
    0.0030047016 = product of:
  0.015023507 = sum of:
    0.015023507 = weight(_text_:18 in 4487) [ClassicSimilarity], result of:
      0.015023507 = score(doc=4487,freq=2.0), product of:
        0.11947718 = queryWeight, product of:
          2.2762048 = idf(docFreq=12340, maxDocs=44218)
          0.052489646 = queryNorm
        0.12574373 = fieldWeight in 4487, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          2.2762048 = idf(docFreq=12340, maxDocs=44218)
          0.0390625 = fieldNorm(doc=4487)
  0.2 = coord(1/5)
    Date
    20.11.2015 18:07:25
  20. Kekäläinen, J.; Järvelin, K.: Using graded relevance assessments in IR evaluation (2002) 0.00 
    0.0030047016 = product of:
  0.015023507 = sum of:
    0.015023507 = weight(_text_:18 in 5225) [ClassicSimilarity], result of:
      0.015023507 = score(doc=5225,freq=2.0), product of:
        0.11947718 = queryWeight, product of:
          2.2762048 = idf(docFreq=12340, maxDocs=44218)
          0.052489646 = queryNorm
        0.12574373 = fieldWeight in 5225, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          2.2762048 = idf(docFreq=12340, maxDocs=44218)
          0.0390625 = fieldNorm(doc=5225)
  0.2 = coord(1/5)
    Date
    17. 2.1997 18:25:04

Authors

Years

Types

  • a 27
  • m 1
  • More… Less…

Themes