Search (43 results, page 2 of 3)

  • × theme_ss:"Retrievalstudien"
  1. 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
  2. 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
  3. 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
  4. 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
  5. 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
  6. 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
  7. Lohmann, H.: KASCADE: Dokumentanreicherung und automatische Inhaltserschließung : Projektbericht und Ergebnisse des Retrievaltests (2000) 0.01 
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    Abstract
    Der Test hat gezeigt, dass die Ergänzung der bibliothekarischen Titelaufnahme um zusätzliche inhaltsrelevante Daten zu einer beeindruckenden Verbesserung der Suchergebnisse führt. Die Dokumentanreicherung sollte daher als Ziel bibliothekarischer Bemühungen um eine Verbesserung des OPAC-Retrievals weiterverfolgt werden. Der im Projekt eingeschlagene Weg, die Inhaltsverzeichnisse zu scannen, erwies sich allerdings als wenig sinnvoll. Zwar erzielte das Scanningverfahren gute Ergebnisse, auch arbeitete die Texterkennungssoftware sehr zuverlässig. Das Scanning bietet darüber hinaus die Möglichkeit, die dabei angefertigte Grafik-Datei mit dem Titelsatz im OPAC zu verknüpfen und so dem Nutzer als Entscheidungshilfe bei der Ergebnismengenbeurteilung an die Hand zu geben. Die Arbeiten am Aufbau der Testdatenbank brachten aber die Erkenntnis, dass die Anreicherung im Wege des Scanning technisch außerordentlich problematisch ist und einen nicht vorauszusehenden und letztlich auch nicht zu rechtfertigenden Aufwand erfordert. Diese Methode der Anreicherung kann daher für einen Praxiseinsatz nicht empfohlen werden.
  8. Dzeyk, W.: Effektiv und nutzerfreundlich : Einsatz von semantischen Technologien und Usability-Methoden zur Verbesserung der medizinischen Literatursuche (2010) 0.01 
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    Abstract
    In der vorliegenden Arbeit werden die Ergebnisse des MorphoSaurus-Projekts der Deutschen Zentralbibliothek für Medizin (ZB MED) vorgestellt. Ziel des Forschungsprojekts war die substanzielle Verbesserung des Information-Retrievals der medizinischen Suchmaschine MEDPILOT mithilfe computerlinguistischer Ansätze sowie die Optimierung der Gebrauchstauglichkeit (Usability) der Suchmaschinenoberfläche. Das Projekt wurde in Kooperation mit der Averbis GmbH aus Freiburg im Zeitraum von Juni 2007 bis Dezember 2008 an der ZB MED in Köln durchgeführt. Ermöglicht wurde die Realisierung des Projekts durch eine Förderung des Paktes für Forschung und Innovation. Während Averbis die MorphoSaurus-Technologie zur Verarbeitung problematischer Sprachaspekte von Suchanfragen einbrachte und wesentliche Datenbanken der ZB MED in ein Testsystem mit moderner Suchmaschinentechnologie implementierte, evaluierte ein Team der ZB MED das Potenzial dieser Technologie. Neben einem Vergleich der Leistungsfähigkeit zwischen der bisherigen MEDPILOT-Suche und der neuen Sucharchitektur wurde ein Benchmarking mit konkurrierenden Suchmaschinen wie PubMed, Scirus, Google und Google Scholar sowie GoPubMed durchgeführt. Für die Evaluation wurden verschiedene Testkollektionen erstellt, deren Items bzw. Suchphrasen aus einer Inhaltsanalyse realer Suchanfragen des MEDPILOT-Systems gewonnen wurden. Eine Überprüfung der Relevanz der Treffer der Testsuchmaschine als wesentliches Kriterium für die Qualität der Suche zeigte folgendes Ergebnis: Durch die Anwendung der MorphoSaurus-Technologie ist eine im hohen Maße unabhängige Verarbeitung fremdsprachlicher medizinischer Inhalte möglich geworden. Darüber hinaus zeigt die neue Technik insbesondere dort ihre Stärken, wo es um die gleichwertige Verarbeitung von Laien- und Expertensprache, die Analyse von Komposita, Synonymen und grammatikalischen Varianten geht. Zudem sind Module zur Erkennung von Rechtschreibfehlern und zur Auflösung von Akronymen und medizinischen Abkürzungen implementiert worden, die eine weitere Leistungssteigerung des Systems versprechen. Ein Vergleich auf der Basis von MEDLINE-Daten zeigte: Den Suchmaschinen MED-PILOT, PubMed, GoPubMed und Scirus war die Averbis-Testsuchumgebung klar überlegen. Die Trefferrelevanz war größer, es wurden insgesamt mehr Treffer gefunden und die Anzahl der Null-Treffer-Meldungen war im Vergleich zu den anderen Suchmaschinen am geringsten.
  9. 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
  10. 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
  11. 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
  12. 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
  13. Leininger, K.: Interindexer consistency in PsychINFO (2000) 0.01 
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    Date
    9. 2.1997 18:44:22
  14. 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
  15. 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
  16. 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
  17. 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
  18. Pal, S.; Mitra, M.; Kamps, J.: Evaluation effort, reliability and reusability in XML retrieval (2011) 0.01 
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    Date
    22. 1.2011 14:20:56
  19. Chu, H.: Factors affecting relevance judgment : a report from TREC Legal track (2011) 0.01 
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    Date
    12. 7.2011 18:29:22
  20. Wildemuth, B.; Freund, L.; Toms, E.G.: Untangling search task complexity and difficulty in the context of interactive information retrieval studies (2014) 0.01 
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    Date
    6. 4.2015 19:31:22

Authors

Years

Languages

  • e 32
  • d 9
  • f 1
  • More… Less…

Types

  • a 35
  • m 3
  • s 3
  • el 1
  • r 1
  • x 1
  • More… Less…

Themes

Subjects

Classifications