Search (347 results, page 1 of 18)

  • × language_ss:"e"
  • × theme_ss:"Retrievalstudien"
  1. Ellis, D.: Progress and problems in information retrieval (1996) 0.01
    0.007138887 = product of:
      0.028555548 = sum of:
        0.028555548 = weight(_text_:information in 789) [ClassicSimilarity], result of:
          0.028555548 = score(doc=789,freq=18.0), product of:
            0.06134496 = queryWeight, product of:
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.034944877 = queryNorm
            0.46549135 = fieldWeight in 789, product of:
              4.2426405 = tf(freq=18.0), with freq of:
                18.0 = termFreq=18.0
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.0625 = fieldNorm(doc=789)
      0.25 = coord(1/4)
    
    Abstract
    An introduction to the principal generic approaches to information retrieval research with their associated concepts, models and systems, this text is designed to keep the information professional up to date with the major themes and developments that have preoccupied researchers in recent month in relation to textual and documentary retrieval systems.
    COMPASS
    Information retrieval
    Content
    First published 1991 as New horizons in information retrieval
    Footnote
    Rez. in: Managing information 3(1996) no.10, S.49 (D. Bawden); Program 32(1998) no.2, S.190-192 (C. Revie)
    LCSH
    Information retrieval
    Subject
    Information retrieval
    Information retrieval
  2. Borlund, P.: Evaluation of interactive information retrieval systems (2000) 0.01
    0.007138887 = product of:
      0.028555548 = sum of:
        0.028555548 = weight(_text_:information in 2556) [ClassicSimilarity], result of:
          0.028555548 = score(doc=2556,freq=18.0), product of:
            0.06134496 = queryWeight, product of:
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.034944877 = queryNorm
            0.46549135 = fieldWeight in 2556, product of:
              4.2426405 = tf(freq=18.0), with freq of:
                18.0 = termFreq=18.0
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.0625 = fieldNorm(doc=2556)
      0.25 = coord(1/4)
    
    LCSH
    Information storage and retrieval systems / Evaluation
    RSWK
    Information Retrieval / Datenbankverwaltung / Hochschulschrift (GBV)
    Information Retrieval / Dialogsystem (SWB)
    Information Retrieval / Dialogsystem / Leistungsbewertung (BVB)
    Subject
    Information Retrieval / Datenbankverwaltung / Hochschulschrift (GBV)
    Information Retrieval / Dialogsystem (SWB)
    Information Retrieval / Dialogsystem / Leistungsbewertung (BVB)
    Information storage and retrieval systems / Evaluation
  3. Robertson, S.E.: ¬The methodology of information retrieval experiment (1981) 0.01
    0.0067306077 = product of:
      0.02692243 = sum of:
        0.02692243 = weight(_text_:information in 3146) [ClassicSimilarity], result of:
          0.02692243 = score(doc=3146,freq=4.0), product of:
            0.06134496 = queryWeight, product of:
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.034944877 = queryNorm
            0.43886948 = fieldWeight in 3146, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.125 = fieldNorm(doc=3146)
      0.25 = coord(1/4)
    
    Source
    Information retrieval experiment. Ed.: K. Sparck Jones
  4. Belkin, N.J.: Ineffable concepts in information retrieval (1981) 0.01
    0.0067306077 = product of:
      0.02692243 = sum of:
        0.02692243 = weight(_text_:information in 3148) [ClassicSimilarity], result of:
          0.02692243 = score(doc=3148,freq=4.0), product of:
            0.06134496 = queryWeight, product of:
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.034944877 = queryNorm
            0.43886948 = fieldWeight in 3148, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.125 = fieldNorm(doc=3148)
      0.25 = coord(1/4)
    
    Source
    Information retrieval experiment. Ed.: K. Sparck Jones
  5. Tague, J.M.: ¬The pragmatics of information retrieval experimentation (1981) 0.01
    0.0067306077 = product of:
      0.02692243 = sum of:
        0.02692243 = weight(_text_:information in 3149) [ClassicSimilarity], result of:
          0.02692243 = score(doc=3149,freq=4.0), product of:
            0.06134496 = queryWeight, product of:
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.034944877 = queryNorm
            0.43886948 = fieldWeight in 3149, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.125 = fieldNorm(doc=3149)
      0.25 = coord(1/4)
    
    Source
    Information retrieval experiment. Ed.: K. Sparck Jones
  6. Cole, C.: Intelligent information retrieval : Part IV: Testing the timing of two information retrieval devices in a naturalistic setting (2001) 0.01
    0.006182458 = product of:
      0.024729831 = sum of:
        0.024729831 = weight(_text_:information in 365) [ClassicSimilarity], result of:
          0.024729831 = score(doc=365,freq=6.0), product of:
            0.06134496 = queryWeight, product of:
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.034944877 = queryNorm
            0.40312737 = fieldWeight in 365, product of:
              2.4494898 = tf(freq=6.0), with freq of:
                6.0 = termFreq=6.0
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.09375 = fieldNorm(doc=365)
      0.25 = coord(1/4)
    
    Source
    Information processing and management. 37(2001) no.1, S.163-182
  7. Lancaster, F.W.: Evaluation within the environment of an operating information service (1981) 0.01
    0.0058892816 = product of:
      0.023557127 = sum of:
        0.023557127 = weight(_text_:information in 3150) [ClassicSimilarity], result of:
          0.023557127 = score(doc=3150,freq=4.0), product of:
            0.06134496 = queryWeight, product of:
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.034944877 = queryNorm
            0.3840108 = fieldWeight in 3150, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.109375 = fieldNorm(doc=3150)
      0.25 = coord(1/4)
    
    Source
    Information retrieval experiment. Ed.: K. Sparck Jones
  8. McGill, M.J.; Huitfeldt, J.: Experimental techniques of information retrieval (1979) 0.01
    0.0058892816 = product of:
      0.023557127 = sum of:
        0.023557127 = weight(_text_:information in 279) [ClassicSimilarity], result of:
          0.023557127 = score(doc=279,freq=4.0), product of:
            0.06134496 = queryWeight, product of:
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.034944877 = queryNorm
            0.3840108 = fieldWeight in 279, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.109375 = fieldNorm(doc=279)
      0.25 = coord(1/4)
    
    Source
    Annual review of information science and technology. 14(1979), S.93-128
  9. Beaulieu, M.: Approaches to user-based studies in information seeking and retrieval : a Sheffield perspective (2003) 0.01
    0.0058892816 = product of:
      0.023557127 = sum of:
        0.023557127 = weight(_text_:information in 4692) [ClassicSimilarity], result of:
          0.023557127 = score(doc=4692,freq=4.0), product of:
            0.06134496 = queryWeight, product of:
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.034944877 = queryNorm
            0.3840108 = fieldWeight in 4692, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.109375 = fieldNorm(doc=4692)
      0.25 = coord(1/4)
    
    Source
    Journal of information science. 29(2003) no.4, S.239-248
  10. Marchionini, G.: Information seeking in full-text end-user-oriented search system : the roles of domain and search expertise (1993) 0.01
    0.005828877 = product of:
      0.023315508 = sum of:
        0.023315508 = weight(_text_:information in 5100) [ClassicSimilarity], result of:
          0.023315508 = score(doc=5100,freq=12.0), product of:
            0.06134496 = queryWeight, product of:
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.034944877 = queryNorm
            0.38007212 = fieldWeight in 5100, product of:
              3.4641016 = tf(freq=12.0), with freq of:
                12.0 = termFreq=12.0
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.0625 = fieldNorm(doc=5100)
      0.25 = coord(1/4)
    
    Abstract
    Presents a study that identifies and examines the roles that information-seeking expertise and domain expertise play in information seeking in full text, and user search systems. This forms part of an investigation to characterise information seeking and to determine how it is affected by interactive electronic access to primary information. Distinguishes between the approaches of search experts and domain experts. Makes recommendations for systems design
    Source
    Library and information science research. 15(1993) no.1, S.35-69
  11. Barry, C.I.; Schamber, L.: User-defined relevance criteria : a comparison of 2 studies (1995) 0.01
    0.005828877 = product of:
      0.023315508 = sum of:
        0.023315508 = weight(_text_:information in 3850) [ClassicSimilarity], result of:
          0.023315508 = score(doc=3850,freq=12.0), product of:
            0.06134496 = queryWeight, product of:
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.034944877 = queryNorm
            0.38007212 = fieldWeight in 3850, product of:
              3.4641016 = tf(freq=12.0), with freq of:
                12.0 = termFreq=12.0
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.0625 = fieldNorm(doc=3850)
      0.25 = coord(1/4)
    
    Abstract
    Aims to determine the extent to which there is a core of relevance criteria that soans such factors as information need situations, user environments, and types of information. 2 recent empirical studies have identified and described user defined relevance criteria. Synthesizes the findings of the 2 studies as a 1st step toward identifying criteria that seem to span information environments and criteria that may be more situationally specific
    Imprint
    Medford, NJ : Learned Information
    Source
    Forging new partnerships in information: converging technologies. Proceedings of the 58th Annual Meeting of the American Society for Information Science, ASIS'95, Chicago, IL, 9-12 October 1995. Ed.: T. Kinney
  12. Wood, F.; Ford, N.; Walsh, C.: ¬The effect of postings information on search behaviour (1994) 0.01
    0.0053541656 = product of:
      0.021416662 = sum of:
        0.021416662 = weight(_text_:information in 6890) [ClassicSimilarity], result of:
          0.021416662 = score(doc=6890,freq=18.0), product of:
            0.06134496 = queryWeight, product of:
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.034944877 = queryNorm
            0.34911853 = fieldWeight in 6890, product of:
              4.2426405 = tf(freq=18.0), with freq of:
                18.0 = termFreq=18.0
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.046875 = fieldNorm(doc=6890)
      0.25 = coord(1/4)
    
    Abstract
    How postings information is used for inverted file searching was investigated by comparing searches, made by postgraduate students at the Dept. of Information Studies, of the LISA database on CD-ROM with and without postings information. Performance (the number of relevant references, precision and recall) was not significantly different but searches with postings information took more time, and more sets were viewed, than in searches without postings. Postings information was used to make decisions to narrow or broaden the search; to view or print the references. The same techniques were used to amend searches whether or not postings information was available. Users decided that a search was satisfactory on the basis of the search results, and consequently many searches done without postings were still considered satisfactory. However, searchers thought that the lack of postings information had affected 90% of their searches. Differences in search performance and searching behaviour were found in participants who were shown to have different learning styles using the Witkin's Embedded Figures test and the Lancaster Short Inventory of Approaches to Learning Test. These differences were, in part, explained by the differences in behaviour indicated by their learning styles
    Source
    Journal of information science. 20(1994) no.1, S.29-40
  13. Saracevic, T.: On a method for studying the structure and nature of requests in information retrieval (1983) 0.01
    0.0051520485 = product of:
      0.020608194 = sum of:
        0.020608194 = weight(_text_:information in 2417) [ClassicSimilarity], result of:
          0.020608194 = score(doc=2417,freq=6.0), product of:
            0.06134496 = queryWeight, product of:
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.034944877 = queryNorm
            0.3359395 = fieldWeight in 2417, product of:
              2.4494898 = tf(freq=6.0), with freq of:
                6.0 = termFreq=6.0
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.078125 = fieldNorm(doc=2417)
      0.25 = coord(1/4)
    
    Series
    Proceedings of the American Society for Information Science; vol. 20
    Source
    Productivity in the information age : proceedings of the 46th ASIS annual meeting, 1983. Ed.: Raymond F Vondra
  14. Salton, G.: Thoughts about modern retrieval technologies (1988) 0.01
    0.0051002675 = product of:
      0.02040107 = sum of:
        0.02040107 = weight(_text_:information in 1522) [ClassicSimilarity], result of:
          0.02040107 = score(doc=1522,freq=12.0), product of:
            0.06134496 = queryWeight, product of:
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.034944877 = queryNorm
            0.3325631 = fieldWeight in 1522, product of:
              3.4641016 = tf(freq=12.0), with freq of:
                12.0 = termFreq=12.0
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.0546875 = fieldNorm(doc=1522)
      0.25 = coord(1/4)
    
    Abstract
    Paper presented at the 30th Annual Conference of the National Federation of Astracting and Information Services, Philadelphia, 28 Feb-2 Mar 88. In recent years, the amount and the variety of available machine-readable data, new technologies have been introduced, such as high density storage devices, and fancy graphic displays useful for information transformation and access. New approaches have also been considered for processing the stored data based on the construction of knowledge bases representing the contents and structure of the information, and the use of expert system techniques to control the user-system interactions. Provides a brief evaluation of the new information processing technologies, and of the software methods proposed for information manipulation.
    Source
    Information services and use. 8(1988) no.2/3/4, S.107-113
  15. Spink, A.; Greisdorf, H.: Users' partial relevance judgements during online searching (1997) 0.01
    0.0051002675 = product of:
      0.02040107 = sum of:
        0.02040107 = weight(_text_:information in 623) [ClassicSimilarity], result of:
          0.02040107 = score(doc=623,freq=12.0), product of:
            0.06134496 = queryWeight, product of:
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.034944877 = queryNorm
            0.3325631 = fieldWeight in 623, product of:
              3.4641016 = tf(freq=12.0), with freq of:
                12.0 = termFreq=12.0
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.0546875 = fieldNorm(doc=623)
      0.25 = coord(1/4)
    
    Abstract
    Reports results of research to examine users conducting their initial online search on a particular information problem. Findings from 3 separate studies of relevance judgements by 44 initial search users were examined, including 2 studies of 13 end users and a study of 18 user engaged in mediated online searches. Number of items was judged on the scale 'relevant', 'patially relevant' and 'not rlevant'. Results suggest that: a relationship exists between partially rlevant items retrieved anch changes in the users' information problem or question during an information seeking process; partial relevance judgements play an important role for users in the early stages of seeking information on a particular information problem; and 'highly' relevant items may or may not be the only items useful at the early stages of users' information seeking processes
  16. Salampasis, M.; Tait, J.; Bloor, C.: Evaluation of information-seeking performance in hypermedia digital libraries (1998) 0.01
    0.0051002675 = product of:
      0.02040107 = sum of:
        0.02040107 = weight(_text_:information in 3759) [ClassicSimilarity], result of:
          0.02040107 = score(doc=3759,freq=12.0), product of:
            0.06134496 = queryWeight, product of:
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.034944877 = queryNorm
            0.3325631 = fieldWeight in 3759, product of:
              3.4641016 = tf(freq=12.0), with freq of:
                12.0 = termFreq=12.0
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.0546875 = fieldNorm(doc=3759)
      0.25 = coord(1/4)
    
    Abstract
    Discusses current information retrieval methods based on recall (R) and precision (P) for evaluating information retrieval and examines their suitability for evaluating the performance of hypermedia digital libraries. Proposes a new quantitative evaluation methodology, based on the structural analysis of hypermedia networks and the navigational and search state patterns of information seekers. Although the proposed methodology retains some of the characteristics of R and P evaluation, it could be more suitable than them for measuring the performance of information-seeking environments where information seekers can utilize arbitrary mixtures of browsing and query-based searching strategies
  17. Cooper, W.S.: ¬On selecting a measure of retrieval effectiveness, revisited (1973) 0.01
    0.0050479556 = product of:
      0.020191822 = sum of:
        0.020191822 = weight(_text_:information in 1930) [ClassicSimilarity], result of:
          0.020191822 = score(doc=1930,freq=4.0), product of:
            0.06134496 = queryWeight, product of:
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.034944877 = queryNorm
            0.3291521 = fieldWeight in 1930, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.09375 = fieldNorm(doc=1930)
      0.25 = coord(1/4)
    
    Footnote
    Wiederabgedruckt in: Readings in information retrieval. Ed.: K. Sparck Jones u. P. Willett. San Francisco: Morgan Kaufmann 1997. S.191-204.
    Source
    Journal of the American Society for Information Science. 24(1973), S.87-100
  18. Sheridan, P.; Ballerini, J.P.; Schäuble, P.: Building a large multilingual test collection from comparable news documents (1998) 0.01
    0.0050479556 = product of:
      0.020191822 = sum of:
        0.020191822 = weight(_text_:information in 6298) [ClassicSimilarity], result of:
          0.020191822 = score(doc=6298,freq=4.0), product of:
            0.06134496 = queryWeight, product of:
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.034944877 = queryNorm
            0.3291521 = fieldWeight in 6298, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.09375 = fieldNorm(doc=6298)
      0.25 = coord(1/4)
    
    Series
    The Kluwer International series on information retrieval
    Source
    Cross-language information retrieval. Ed.: G. Grefenstette
  19. Davis, M.W.: On the effective use of large parallel corpora in cross-language text retrieval (1998) 0.01
    0.0050479556 = product of:
      0.020191822 = sum of:
        0.020191822 = weight(_text_:information in 6302) [ClassicSimilarity], result of:
          0.020191822 = score(doc=6302,freq=4.0), product of:
            0.06134496 = queryWeight, product of:
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.034944877 = queryNorm
            0.3291521 = fieldWeight in 6302, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.09375 = fieldNorm(doc=6302)
      0.25 = coord(1/4)
    
    Series
    The Kluwer International series on information retrieval
    Source
    Cross-language information retrieval. Ed.: G. Grefenstette
  20. Newby, G.B.: Cognitive space and information space (2001) 0.01
    0.0050479556 = product of:
      0.020191822 = sum of:
        0.020191822 = weight(_text_:information in 6977) [ClassicSimilarity], result of:
          0.020191822 = score(doc=6977,freq=16.0), product of:
            0.06134496 = queryWeight, product of:
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.034944877 = queryNorm
            0.3291521 = fieldWeight in 6977, product of:
              4.0 = tf(freq=16.0), with freq of:
                16.0 = termFreq=16.0
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.046875 = fieldNorm(doc=6977)
      0.25 = coord(1/4)
    
    Abstract
    This article works towards realization of exosomatic memory for information systems. In exosomatic memory systems, the information spaces of systems will be consistent with the cognitive spaces of their human users. A method for measuring concept relations in human cognitive space is presented: the paired comparison survey with Principal Components Analysis. A study to measure the cognitive spaces of 16 research participants is presented. Items measured include relations among seven TREC topic statements as well as 17 concepts from the topic statements. A method for automatically generating information spaces from document collections is presented that uses term cooccurrence, eigensystems analysis, and Principal Components Analysis. The extent of similarity between the cognitive spaces and the information spaces, which were derived independently from each other, is measured. A strong similarity between the information spaces and the cognitive spaces are found, indicating that the methods described may have good utility for working towards information systems that operate as exosomatic memories
    Source
    Journal of the American Society for Information Science and technology. 52(2001) no.12, S.1026-1048

Authors

Types

  • a 329
  • s 11
  • m 6
  • el 4
  • p 1
  • r 1
  • More… Less…