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  • × theme_ss:"Retrievalstudien"
  1. ¬The Eleventh Text Retrieval Conference, TREC 2002 (2003) 0.01 
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    Abstract
    Proceedings of the llth TREC-conference held in Gaithersburg, Maryland (USA), November 19-22, 2002. Aim of the conference was discussion an retrieval and related information-seeking tasks for large test collection. 93 research groups used different techniques, for information retrieval from the same large database. This procedure makes it possible to compare the results. The tasks are: Cross-language searching, filtering, interactive searching, searching for novelty, question answering, searching for video shots, and Web searching.
  2. Hider, P.: ¬The search value added by professional indexing to a bibliographic database (2017) 0.01 
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    Abstract
    Gross et al. (2015) have demonstrated that about a quarter of hits would typically be lost to keyword searchers if contemporary academic library catalogs dropped their controlled subject headings. This paper reports on an analysis of the loss levels that would result if a bibliographic database, namely the Australian Education Index (AEI), were missing the subject descriptors and identifiers assigned by its professional indexers, employing the methodology developed by Gross and Taylor (2005), and later by Gross et al. (2015). The results indicate that AEI users would lose a similar proportion of hits per query to that experienced by library catalog users: on average, 27% of the resources found by a sample of keyword queries on the AEI database would not have been found without the subject indexing, based on the Australian Thesaurus of Education Descriptors (ATED). The paper also discusses the methodological limitations of these studies, pointing out that real-life users might still find some of the resources missed by a particular query through follow-up searches, while additional resources might also be found through iterative searching on the subject vocabulary. The paper goes on to describe a new research design, based on a before - and - after experiment, which addresses some of these limitations. It is argued that this alternative design will provide a more realistic picture of the value that professionally assigned subject indexing and controlled subject vocabularies can add to literature searching of a more scholarly and thorough kind.
  3. TREC: experiment and evaluation in information retrieval (2005) 0.01 
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    Classification
    QA76.9.T48T74 2005
    LCC
    QA76.9.T48T74 2005
    Year
    2005
  4. Blagden, J.F.: How much noise in a role-free and link-free co-ordinate indexing system? (1966) 0.01 
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    Source
    Journal of documentation. 22(1966), S.203-209
  5. Smithson, S.: Information retrieval evaluation in practice : a case study approach (1994) 0.01 
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    Abstract
    The evaluation of information retrieval systems is an important yet difficult operation. This paper describes an exploratory evaluation study that takes an interpretive approach to evaluation. The longitudinal study examines evaluation through the information-seeking behaviour of 22 case studies of 'real' users. The eclectic approach to data collection produced behavioral data that is compared with relevance judgements and satisfaction ratings. The study demonstrates considerable variations among the cases, among different evaluation measures within the same case, and among the same measures at different stages within a single case. It is argued that those involved in evaluation should be aware of the difficulties, and base any evaluation on a good understanding of the cases in question
  6. Blair, D.C.: STAIRS Redux : thoughts on the STAIRS evaluation, ten years after (1996) 0.01 
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    Source
    Journal of the American Society for Information Science. 47(1996) no.1, S.4-22
  7. Losee, R.M.: Determining information retrieval and filtering performance without experimentation (1995) 0.01 
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    Date
    22. 2.1996 13:14:10
  8. Hodges, P.R.: Keyword in title indexes : effectiveness of retrieval in computer searches (1983) 0.01 
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    Date
    14. 3.1996 13:22:21
  9. Brown, M.E.: By any other name : accounting for failure in the naming of subject categories (1995) 0.01 
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    Date
    2.11.1996 13:08:22
  10. Voorhees, E.M.; Harman, D.K.: ¬The Text REtrieval Conference (2005) 0.01 
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    Year
    2005
  11. Iivonen, M.: Consistency in the selection of search concepts and search terms (1995) 0.01 
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    Abstract
    Considers intersearcher and intrasearcher consistency in the selection of search terms. Based on an empirical study where 22 searchers from 4 different types of search environments analyzed altogether 12 search requests of 4 different types in 2 separate test situations between which 2 months elapsed. Statistically very significant differences in consistency were found according to the types of search environments and search requests. Consistency was also considered according to the extent of the scope of search concept. At level I search terms were compared character by character. At level II different search terms were accepted as the same search concept with a rather simple evaluation of linguistic expressions. At level III, in addition to level II, the hierarchical approach of the search request was also controlled. At level IV different search terms were accepted as the same search concept with a broad interpretation of the search concept. Both intersearcher and intrasearcher consistency grew most immediately after a rather simple evaluation of linguistic impressions
  12. Sievert, M.E.; McKinin, E.J.: Why full-text misses some relevant documents : an analysis of documents not retrieved by CCML or MEDIS (1989) 0.01 
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    Date
    9. 1.1996 10:22:31
  13. Wood, F.; Ford, N.; Miller, D.; Sobczyk, G.; Duffin, R.: Information skills, searching behaviour and cognitive styles for student-centred learning : a computer-assisted learning approach (1996) 0.01 
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    Source
    Journal of information science. 22(1996) no.2, S.79-92
  14. Crestani, F.; Rijsbergen, C.J. van: Information retrieval by imaging (1996) 0.01 
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    Source
    Information retrieval: new systems and current research. Proceedings of the 16th Research Colloquium of the British Computer Society Information Retrieval Specialist Group, Drymen, Scotland, 22-23 Mar 94. Ed.: R. Leon
  15. Leininger, K.: Interindexer consistency in PsychINFO (2000) 0.01 
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    Date
    9. 2.1997 18:44:22
  16. Reichert, S.; Mayr, P.: Untersuchung von Relevanzeigenschaften in einem kontrollierten Eyetracking-Experiment (2012) 0.01 
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    Date
    22. 7.2012 19:25:54
  17. Effektive Information Retrieval Verfahren in Theorie und Praxis : ausgewählte und erweiterte Beiträge des Vierten Hildesheimer Evaluierungs- und Retrievalworkshop (HIER 2005), Hildesheim, 20.7.2005 (2006) 0.01 
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    Footnote
    Rez. in: Information - Wissenschaft und Praxis 57(2006) H.5, S.290-291 (C. Schindler): "Weniger als ein Jahr nach dem "Vierten Hildesheimer Evaluierungs- und Retrievalworkshop" (HIER 2005) im Juli 2005 ist der dazugehörige Tagungsband erschienen. Eingeladen hatte die Hildesheimer Informationswissenschaft um ihre Forschungsergebnisse und die einiger externer Experten zum Thema Information Retrieval einem Fachpublikum zu präsentieren und zur Diskussion zu stellen. Unter dem Titel "Effektive Information Retrieval Verfahren in Theorie und Praxis" sind nahezu sämtliche Beiträge des Workshops in dem nun erschienenen, 15 Beiträge umfassenden Band gesammelt. Mit dem Schwerpunkt Information Retrieval (IR) wird ein Teilgebiet der Informationswissenschaft vorgestellt, das schon immer im Zentrum informationswissenschaftlicher Forschung steht. Ob durch den Leistungsanstieg von Prozessoren und Speichermedien, durch die Verbreitung des Internet über nationale Grenzen hinweg oder durch den stetigen Anstieg der Wissensproduktion, festzuhalten ist, dass in einer zunehmend wechselseitig vernetzten Welt die Orientierung und das Auffinden von Dokumenten in großen Wissensbeständen zu einer zentralen Herausforderung geworden sind. Aktuelle Verfahrensweisen zu diesem Thema, dem Information Retrieval, präsentiert der neue Band anhand von praxisbezogenen Projekten und theoretischen Diskussionen. Das Kernthema Information Retrieval wird in dem Sammelband in die Bereiche Retrieval-Systeme, Digitale Bibliothek, Evaluierung und Multilinguale Systeme untergliedert. Die Artikel der einzelnen Sektionen sind insgesamt recht heterogen und bieten daher keine Überschneidungen inhaltlicher Art. Jedoch ist eine vollkommene thematische Abdeckung der unterschiedlichen Bereiche ebenfalls nicht gegeben, was bei der Präsentation von Forschungsergebnissen eines Institutes und seiner Kooperationspartner auch nur bedingt erwartet werden kann. So lässt sich sowohl in der Gliederung als auch in den einzelnen Beiträgen eine thematische Verdichtung erkennen, die das spezielle Profil und die Besonderheit der Hildesheimer Informationswissenschaft im Feld des Information Retrieval wiedergibt. Teil davon ist die mehrsprachige und interdisziplinäre Ausrichtung, die die Schnittstellen zwischen Informationswissenschaft, Sprachwissenschaft und Informatik in ihrer praxisbezogenen und internationalen Forschung fokussiert.
  18. Belkin, N.J.: ¬An overview of results from Rutgers' investigations of interactive information retrieval (1998) 0.01 
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    Date
    22. 9.1997 19:16:05
  19. King, D.W.: Blazing new trails : in celebration of an audacious career (2000) 0.01 
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    22. 9.1997 19:16:05
  20. Petrelli, D.: On the role of user-centred evaluation in the advancement of interactive information retrieval (2008) 0.01 
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    Source
    Information processing and management. 44(2008) no.1, S.22-38

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  • e 56
  • d 6
  • f 1
  • m 1
  • More… Less…

Types

  • a 59
  • s 5
  • m 4
  • el 1
  • More… Less…

Themes

Subjects

Classifications