Search (9 results, page 1 of 1)

  • × theme_ss:"OPAC"
  • × theme_ss:"Suchmaschinen"
  1. Franke-Maier, M.; Rüter, C.: Discover Sacherschließung! : Was machen suchmaschinenbasierte Systeme mit unseren inhaltlichen Metadaten? (2015) 0.03
    0.029098257 = product of:
      0.043647386 = sum of:
        0.031532075 = weight(_text_:im in 1706) [ClassicSimilarity], result of:
          0.031532075 = score(doc=1706,freq=2.0), product of:
            0.1442303 = queryWeight, product of:
              2.8267863 = idf(docFreq=7115, maxDocs=44218)
              0.051022716 = queryNorm
            0.2186231 = fieldWeight in 1706, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              2.8267863 = idf(docFreq=7115, maxDocs=44218)
              0.0546875 = fieldNorm(doc=1706)
        0.01211531 = product of:
          0.03634593 = sum of:
            0.03634593 = weight(_text_:online in 1706) [ClassicSimilarity], result of:
              0.03634593 = score(doc=1706,freq=2.0), product of:
                0.1548489 = queryWeight, product of:
                  3.0349014 = idf(docFreq=5778, maxDocs=44218)
                  0.051022716 = queryNorm
                0.23471867 = fieldWeight in 1706, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.0349014 = idf(docFreq=5778, maxDocs=44218)
                  0.0546875 = fieldNorm(doc=1706)
          0.33333334 = coord(1/3)
      0.6666667 = coord(2/3)
    
    Abstract
    Discovery Systeme erlauben einen neuen und anderen Zugriff auf verfügbare Ressourcen einer Bibliothek als die traditionellen Online-Kataloge. Daraus ergeben sich Probleme, aber auch Chancen für die Nutzung und Sichtbarkeit der bibliothekarischen Sacherschließung. Der Vortrag gibt einen Einblick in die Funktionalitäten und Funktionsweisen von Discovery Systemen am Beispiel eines großen Players, Primo von ExLibris, sowie die Auswirkungen auf bibliothekarische inhaltliche Metadaten. Es werden Chancen und Grenzen der Technik beleuchtet. Der Vortrag schließt mit der Reflektion der Implikationen für die Arbeit im Fachreferat.
  2. Markey, K.: Twenty-five years of end-user searching : part 1: research findings (2007) 0.02
    0.024362898 = product of:
      0.07308869 = sum of:
        0.07308869 = product of:
          0.10963303 = sum of:
            0.05805141 = weight(_text_:online in 5163) [ClassicSimilarity], result of:
              0.05805141 = score(doc=5163,freq=10.0), product of:
                0.1548489 = queryWeight, product of:
                  3.0349014 = idf(docFreq=5778, maxDocs=44218)
                  0.051022716 = queryNorm
                0.37489069 = fieldWeight in 5163, product of:
                  3.1622777 = tf(freq=10.0), with freq of:
                    10.0 = termFreq=10.0
                  3.0349014 = idf(docFreq=5778, maxDocs=44218)
                  0.0390625 = fieldNorm(doc=5163)
            0.051581617 = weight(_text_:retrieval in 5163) [ClassicSimilarity], result of:
              0.051581617 = score(doc=5163,freq=8.0), product of:
                0.15433937 = queryWeight, product of:
                  3.024915 = idf(docFreq=5836, maxDocs=44218)
                  0.051022716 = queryNorm
                0.33420905 = fieldWeight in 5163, product of:
                  2.828427 = tf(freq=8.0), with freq of:
                    8.0 = termFreq=8.0
                  3.024915 = idf(docFreq=5836, maxDocs=44218)
                  0.0390625 = fieldNorm(doc=5163)
          0.6666667 = coord(2/3)
      0.33333334 = coord(1/3)
    
    Abstract
    This is the first part of a two-part article that reviews 25 years of published research findings on end-user searching in online information retrieval (IR) systems. In Part 1 (Markey, 2007), the author seeks to answer the following questions: What characterizes the queries that end users submit to online IR systems? What search features do people use? What features would enable them to improve on the retrievals they have in hand? What features are hardly ever used? What do end users do in response to the system's retrievals? Are end users satisfied with their online searches? Summarizing searches of online IR systems by the search features people use everyday makes information retrieval appear to be a very simplistic one-stop event. In Part 2, the author examines current models of the information retrieval process, demonstrating that information retrieval is much more complex and involves changes in cognition, feelings, and/or events during the information seeking process. She poses a host of new research questions that will further our understanding about end-user searching of online IR systems.
  3. Markey, K.: Twenty-five years of end-user searching : part 2: future research directions (2007) 0.02
    0.021465277 = product of:
      0.06439583 = sum of:
        0.06439583 = product of:
          0.096593745 = sum of:
            0.051922753 = weight(_text_:online in 443) [ClassicSimilarity], result of:
              0.051922753 = score(doc=443,freq=8.0), product of:
                0.1548489 = queryWeight, product of:
                  3.0349014 = idf(docFreq=5778, maxDocs=44218)
                  0.051022716 = queryNorm
                0.33531237 = fieldWeight in 443, product of:
                  2.828427 = tf(freq=8.0), with freq of:
                    8.0 = termFreq=8.0
                  3.0349014 = idf(docFreq=5778, maxDocs=44218)
                  0.0390625 = fieldNorm(doc=443)
            0.04467099 = weight(_text_:retrieval in 443) [ClassicSimilarity], result of:
              0.04467099 = score(doc=443,freq=6.0), product of:
                0.15433937 = queryWeight, product of:
                  3.024915 = idf(docFreq=5836, maxDocs=44218)
                  0.051022716 = queryNorm
                0.28943354 = fieldWeight in 443, product of:
                  2.4494898 = tf(freq=6.0), with freq of:
                    6.0 = termFreq=6.0
                  3.024915 = idf(docFreq=5836, maxDocs=44218)
                  0.0390625 = fieldNorm(doc=443)
          0.6666667 = coord(2/3)
      0.33333334 = coord(1/3)
    
    Abstract
    This is the second part of a two-part article that examines 25 years of published research findings on end-user searching of online information retrieval (IR) systems. In Part 1, it was learned that people enter a few short search statements into online IR systems. Their searches do not resemble the systematic approach of expert searchers who use the full range of IR-system functionality. Part 2 picks up the discussion of research findings about end-user searching in the context of current information retrieval models. These models demonstrate that information retrieval is a complex event, involving changes in cognition, feelings, and/or events during the information seeking process. The author challenges IR researchers to design new studies of end-user searching, collecting data not only on system-feature use, but on multiple search sessions and controlling for variables such as domain knowledge expertise and expert system knowledge. Because future IR systems designers are likely to improve the functionality of online IR systems in response to answers to the new research questions posed here, the author concludes with advice to these designers about retaining the simplicity of online IR system interfaces.
  4. Knitel, M.; Labner, J.; Oberhauser, O.: Sachliche Erschließung und die neue Suchmaschine des Österreichischen Bibliothekenverbundes (2010) 0.02
    0.018205054 = product of:
      0.054615162 = sum of:
        0.054615162 = weight(_text_:im in 4207) [ClassicSimilarity], result of:
          0.054615162 = score(doc=4207,freq=6.0), product of:
            0.1442303 = queryWeight, product of:
              2.8267863 = idf(docFreq=7115, maxDocs=44218)
              0.051022716 = queryNorm
            0.37866634 = fieldWeight in 4207, product of:
              2.4494898 = tf(freq=6.0), with freq of:
                6.0 = termFreq=6.0
              2.8267863 = idf(docFreq=7115, maxDocs=44218)
              0.0546875 = fieldNorm(doc=4207)
      0.33333334 = coord(1/3)
    
    Abstract
    Mit der Einführung der neuen Suchmaschine Primo im Österreichischen Bibliothekenverbund wurde eine Neubewertung und Neuausrichtung der Anzeige, Indexierung und der erstmals möglichen Facettierung sacherschließender Elemente notwendig. Nach einem kurzen Überblick über die im Verbund zum Einsatz kommende Software sowie über Umfang und Art der inhaltlichen Erschließung im zentralen Katalog wird detailliert auf die angestrebte Umsetzung derselben in der neuen Suchmaschinenumgebung eingegangen, wobei der verbalen Erschließung durch RSWK-Ketten als wichtigste Form der intellektuellen Erschließung erhöhte Aufmerksamkeit zukommt. In einem zweiten Teil wird die konkrete technische Umsetzung in Primo beleuchtet, um abschließend einen Ausblick auf zukünftige Entwicklungen sowie projektierte Verbesserungen zu geben.
  5. Jezior, T.: Adaption und Integration von Suchmaschinentechnologie in mor(!)dernen OPACs (2013) 0.02
    0.016987845 = product of:
      0.050963532 = sum of:
        0.050963532 = weight(_text_:im in 2222) [ClassicSimilarity], result of:
          0.050963532 = score(doc=2222,freq=4.0), product of:
            0.1442303 = queryWeight, product of:
              2.8267863 = idf(docFreq=7115, maxDocs=44218)
              0.051022716 = queryNorm
            0.35334828 = fieldWeight in 2222, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              2.8267863 = idf(docFreq=7115, maxDocs=44218)
              0.0625 = fieldNorm(doc=2222)
      0.33333334 = coord(1/3)
    
    Abstract
    Wissenschaftliche Bibliotheken werden heutzutage durch Universalsuchmaschinen wie Google bedroht. Ein Grund hierfür ist, dass Bibliotheken auf Rechercheinstrumente setzen die, die heutigen Erwartungen ihrer Nutzer nicht mehr erfüllen können. Wollen Bibliotheken auch zukünftig eine tragende Rolle spielen, müssen sie die Techniken in ihrer Produkte integrieren, die Suchmaschinen zu ihrem Erfolg im Web verholfen haben.
    Footnote
    Diplomarbeit im Studiengang Bibliothekswesen
  6. Rieh, S.Y.; Kim, Y.-M.; Markey, K.: Amount of invested mental effort (AIME) in online searching (2012) 0.02
    0.015723832 = product of:
      0.047171496 = sum of:
        0.047171496 = product of:
          0.07075724 = sum of:
            0.04496643 = weight(_text_:online in 2726) [ClassicSimilarity], result of:
              0.04496643 = score(doc=2726,freq=6.0), product of:
                0.1548489 = queryWeight, product of:
                  3.0349014 = idf(docFreq=5778, maxDocs=44218)
                  0.051022716 = queryNorm
                0.29038906 = fieldWeight in 2726, product of:
                  2.4494898 = tf(freq=6.0), with freq of:
                    6.0 = termFreq=6.0
                  3.0349014 = idf(docFreq=5778, maxDocs=44218)
                  0.0390625 = fieldNorm(doc=2726)
            0.025790809 = weight(_text_:retrieval in 2726) [ClassicSimilarity], result of:
              0.025790809 = score(doc=2726,freq=2.0), product of:
                0.15433937 = queryWeight, product of:
                  3.024915 = idf(docFreq=5836, maxDocs=44218)
                  0.051022716 = queryNorm
                0.16710453 = fieldWeight in 2726, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.024915 = idf(docFreq=5836, maxDocs=44218)
                  0.0390625 = fieldNorm(doc=2726)
          0.6666667 = coord(2/3)
      0.33333334 = coord(1/3)
    
    Abstract
    This research investigates how people's perceptions of information retrieval (IR) systems, their perceptions of search tasks, and their perceptions of self-efficacy influence the amount of invested mental effort (AIME) they put into using two different IR systems: a Web search engine and a library system. It also explores the impact of mental effort on an end user's search experience. To assess AIME in online searching, two experiments were conducted using these methods: Experiment 1 relied on self-reports and Experiment 2 employed the dual-task technique. In both experiments, data were collected through search transaction logs, a pre-search background questionnaire, a post-search questionnaire and an interview. Important findings are these: (1) subjects invested greater mental effort searching a library system than searching the Web; (2) subjects put little effort into Web searching because of their high sense of self-efficacy in their searching ability and their perception of the easiness of the Web; (3) subjects did not recognize that putting mental effort into searching was something needed to improve the search results; and (4) data collected from multiple sources proved to be effective for assessing mental effort in online searching.
  7. Lewandowski, D.: Suchmaschinen als Konkurrenten der Bibliothekskataloge : Wie Bibliotheken ihre Angebote durch Suchmaschinentechnologie attraktiver und durch Öffnung für die allgemeinen Suchmaschinen populärer machen können (2006) 0.01
    0.010510692 = product of:
      0.031532075 = sum of:
        0.031532075 = weight(_text_:im in 3449) [ClassicSimilarity], result of:
          0.031532075 = score(doc=3449,freq=2.0), product of:
            0.1442303 = queryWeight, product of:
              2.8267863 = idf(docFreq=7115, maxDocs=44218)
              0.051022716 = queryNorm
            0.2186231 = fieldWeight in 3449, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              2.8267863 = idf(docFreq=7115, maxDocs=44218)
              0.0546875 = fieldNorm(doc=3449)
      0.33333334 = coord(1/3)
    
    Abstract
    Die elektronischen Bibliotheksangebote konkurrieren zunehmend mit den allgemeinen Websuchmaschinen und spezialisierten Wissenschaftssuchmaschinen um die Gunst der Nutzer. Dieser Aufsatz gibt einen kritischen Überblick über die bisherigen Initiativen zum Einsatz von Suchmaschinentechnologie im Bibliothekskontext sowie zur Sichtbarmachung von Bibliotheksinhalten in allgemeinen Suchmaschinen. Darauf aufbauend wird dargestellt, wie Bibliotheksangebote tatsächlich für den Nutzer attraktiver werden können und ihre Sichtbarkeit in Suchmaschinen erhöht werden kann. Grundlegend muss der OPAC zum zentralen Nachweisinstrument für alle in der jeweiligen Bibliothek verfügbaren Informationen gemacht werden. Außerdem müssen die Katalogdaten deutlich angereichert werden, um die Stärken der Suchmaschinentechnologie auch tatsächlich nutzen zu können. Auf der Basis dieser erweiterten Textmenge kann schließlich auch leicht die Auffindbarkeit in allgemeinen Suchmaschinen verbessert werden.
  8. Shneiderman, B.; Byrd, D.; Croft, W.B.: Clarifying search : a user-interface framework for text searches (1997) 0.00
    0.004585033 = product of:
      0.013755098 = sum of:
        0.013755098 = product of:
          0.041265294 = sum of:
            0.041265294 = weight(_text_:retrieval in 1258) [ClassicSimilarity], result of:
              0.041265294 = score(doc=1258,freq=2.0), product of:
                0.15433937 = queryWeight, product of:
                  3.024915 = idf(docFreq=5836, maxDocs=44218)
                  0.051022716 = queryNorm
                0.26736724 = fieldWeight in 1258, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.024915 = idf(docFreq=5836, maxDocs=44218)
                  0.0625 = fieldNorm(doc=1258)
          0.33333334 = coord(1/3)
      0.33333334 = coord(1/3)
    
    Footnote
    Vgl.: http://dlib.ukoln.ac.uk/dlib/january97/retrieval/01shneiderman.html.
  9. Golderman, G.M.; Connolly, B.: Between the book covers : going beyond OPAC keyword searching with the deep linking capabilities of Google Scholar and Google Book Search (2004/05) 0.00
    0.0038404856 = product of:
      0.011521457 = sum of:
        0.011521457 = product of:
          0.03456437 = sum of:
            0.03456437 = weight(_text_:22 in 731) [ClassicSimilarity], result of:
              0.03456437 = score(doc=731,freq=2.0), product of:
                0.17867287 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.051022716 = queryNorm
                0.19345059 = fieldWeight in 731, 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=731)
          0.33333334 = coord(1/3)
      0.33333334 = coord(1/3)
    
    Date
    2.12.2007 19:39:22