Search (12 results, page 1 of 1)

  • × author_ss:"Mayr, P."
  1. Daniel, F.; Maier, C.; Mayr, P.; Wirtz, H.-C.: ¬Die Kunden dort bedienen, wo sie sind : DigiAuskunft besteht Bewährungsprobe / Seit Anfang 2006 in Betrieb (2006) 0.01 
    0.012703893 = product of:
  0.044463623 = sum of:
    0.033390436 = weight(_text_:internet in 5991) [ClassicSimilarity], result of:
      0.033390436 = score(doc=5991,freq=4.0), product of:
        0.10340759 = queryWeight, product of:
          2.9522398 = idf(docFreq=6276, maxDocs=44218)
          0.035026826 = queryNorm
        0.32290122 = fieldWeight in 5991, product of:
          2.0 = tf(freq=4.0), with freq of:
            4.0 = termFreq=4.0
          2.9522398 = idf(docFreq=6276, maxDocs=44218)
          0.0546875 = fieldNorm(doc=5991)
    0.011073187 = product of:
      0.03321956 = sum of:
        0.03321956 = weight(_text_:22 in 5991) [ClassicSimilarity], result of:
          0.03321956 = score(doc=5991,freq=2.0), product of:
            0.12265798 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.035026826 = queryNorm
            0.2708308 = fieldWeight in 5991, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.0546875 = fieldNorm(doc=5991)
      0.33333334 = coord(1/3)
  0.2857143 = coord(2/7)
    Abstract
    Informationen werden heute zunächst im Internet gesucht - auch regelmäßige Bibliotheksnutzer machen dies nicht anders. Die Bibliotheken haben sich darauf eingestellt und mit Online-Katalogen, digitalen Bibliotheken, Volltextbanken und der Endnutzer-Fernleihe virtuelle Dependancen im Netz aufgebaut. Diese Angebote werden idealerweise durch einen digitalen Auskunftsdienst ergänzt. Die Internet-Trainerin Anne Lipow sagte schon vor sechs Jahren zutreffend: »It's the librarian's job, to meet the users where they are...« Auch auf zahlreichen deutschsprachigen Bibliothekswebsites gibt es folglich heute individuelle Beratung und Informationsvermittlung in unterschiedlicher Form: als E-MailKontakt, über Webformulare und in den vergangenen Jahren auch vermehrt als Chat.
    Date
    8. 7.2006 21:06:22
  2. Mayr, P.; Tosques, F.: Webometrische Analysen mit Hilfe der Google Web APIs (2005) 0.01 
    0.009938373 = product of:
  0.034784306 = sum of:
    0.023610605 = weight(_text_:internet in 3189) [ClassicSimilarity], result of:
      0.023610605 = score(doc=3189,freq=2.0), product of:
        0.10340759 = queryWeight, product of:
          2.9522398 = idf(docFreq=6276, maxDocs=44218)
          0.035026826 = queryNorm
        0.22832564 = fieldWeight in 3189, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          2.9522398 = idf(docFreq=6276, maxDocs=44218)
          0.0546875 = fieldNorm(doc=3189)
    0.011173702 = product of:
      0.033521105 = sum of:
        0.033521105 = weight(_text_:29 in 3189) [ClassicSimilarity], result of:
          0.033521105 = score(doc=3189,freq=2.0), product of:
            0.123213425 = queryWeight, product of:
              3.5176873 = idf(docFreq=3565, maxDocs=44218)
              0.035026826 = queryNorm
            0.27205724 = fieldWeight in 3189, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5176873 = idf(docFreq=3565, maxDocs=44218)
              0.0546875 = fieldNorm(doc=3189)
      0.33333334 = coord(1/3)
  0.2857143 = coord(2/7)
    Abstract
    Der Report stellt die Möglichkeiten und Einschränkungen der Google Web APIs (Google API) dar. Die Implementierung der Google API anhand einzelner informationswissenschaftlicher Untersuchungen aus der Webometrie ergibt, dass die Google API mit Einschränkungen für internetbezogene Untersuchungen eingesetzt werden können. Vergleiche der Trefferergebnisse über die beiden Google-Schnittstellen Google API und die Standard Weboberfläche Google.com (Google Web) zeigen Unterschiede bezüglich der Reichweite, der Zusammensetzung und Verfügbarkeit. Die Untersuchung basiert auf einfachen und erweiterten Suchanfragen in den Sprachen Deutsch und Englisch. Die analysierten Treffermengen der Google API bestätigen tendenziell frühere Internet-Studien.
    Date
    12. 2.2005 18:29:36
  3. Mayr, P.: DigiLink - Die dritte Generation der Linklisten (2005) 0.00 
    0.0038547928 = product of:
  0.026983548 = sum of:
    0.026983548 = weight(_text_:internet in 3582) [ClassicSimilarity], result of:
      0.026983548 = score(doc=3582,freq=2.0), product of:
        0.10340759 = queryWeight, product of:
          2.9522398 = idf(docFreq=6276, maxDocs=44218)
          0.035026826 = queryNorm
        0.2609436 = fieldWeight in 3582, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          2.9522398 = idf(docFreq=6276, maxDocs=44218)
          0.0625 = fieldNorm(doc=3582)
  0.14285715 = coord(1/7)
    Theme
    Internet
  4. Lewandowski, D.; Mayr, P.: Exploring the academic invisible Web (2006) 0.00 
    0.0034071878 = product of:
  0.023850312 = sum of:
    0.023850312 = weight(_text_:internet in 3752) [ClassicSimilarity], result of:
      0.023850312 = score(doc=3752,freq=4.0), product of:
        0.10340759 = queryWeight, product of:
          2.9522398 = idf(docFreq=6276, maxDocs=44218)
          0.035026826 = queryNorm
        0.23064373 = fieldWeight in 3752, product of:
          2.0 = tf(freq=4.0), with freq of:
            4.0 = termFreq=4.0
          2.9522398 = idf(docFreq=6276, maxDocs=44218)
          0.0390625 = fieldNorm(doc=3752)
  0.14285715 = coord(1/7)
    Abstract
    Purpose: To provide a critical review of Bergman's 2001 study on the Deep Web. In addition, we bring a new concept into the discussion, the Academic Invisible Web (AIW). We define the Academic Invisible Web as consisting of all databases and collections relevant to academia but not searchable by the general-purpose internet search engines. Indexing this part of the Invisible Web is central to scien-tific search engines. We provide an overview of approaches followed thus far. Design/methodology/approach: Discussion of measures and calculations, estima-tion based on informetric laws. Literature review on approaches for uncovering information from the Invisible Web. Findings: Bergman's size estimate of the Invisible Web is highly questionable. We demonstrate some major errors in the conceptual design of the Bergman paper. A new (raw) size estimate is given. Research limitations/implications: The precision of our estimate is limited due to a small sample size and lack of reliable data. Practical implications: We can show that no single library alone will be able to index the Academic Invisible Web. We suggest collaboration to accomplish this task. Originality/value: Provides library managers and those interested in developing academic search engines with data on the size and attributes of the Academic In-visible Web.
    Theme
    Internet
  5. Mayr, P.: Google Scholar als akademische Suchmaschine (2009) 0.00 
    0.00272575 = product of:
  0.01908025 = sum of:
    0.01908025 = weight(_text_:internet in 3023) [ClassicSimilarity], result of:
      0.01908025 = score(doc=3023,freq=4.0), product of:
        0.10340759 = queryWeight, product of:
          2.9522398 = idf(docFreq=6276, maxDocs=44218)
          0.035026826 = queryNorm
        0.18451498 = fieldWeight in 3023, product of:
          2.0 = tf(freq=4.0), with freq of:
            4.0 = termFreq=4.0
          2.9522398 = idf(docFreq=6276, maxDocs=44218)
          0.03125 = fieldNorm(doc=3023)
  0.14285715 = coord(1/7)
    Abstract
    Die drei oben genannten Suchsysteme (Google, GS und WoS) unterscheiden sich in mehrerlei Hinsicht fundamental und eignen sich daher gut, um in die Grundthematik dieses Artikels einzuleiten. Die obigen Suchsysteme erschließen zunächst unterschiedliche Suchräume, und dies auf sehr spezifische Weise. Während Google frei zugängliche und über Hyperlink adressierbare Dokumente im Internet erfasst, gehen die beiden akademischen Suchsysteme deutlich selektiver bei der Inhaltserschließung vor. Google Scholar erfasst neben frei zugänglichen elektronischen Publikationstypen im Internet hauptsächlich wissenschaftliche Dokumente, die direkt von den akademischen Verlagen bezogen werden. Das WoS, das auf den unterschiedlichen bibliographischen Datenbanken und Zitationsindizes des ehemaligen "Institute for Scientific Information" (ISI) basiert, selektiert gegenüber den rein automatischen brute-force-Ansätzen der Internetsuchmaschine über einen qualitativen Ansatz. In den Datenbanken des WoS werden ausschließlich internationale Fachzeitschriften erfasst, die ein kontrolliertes Peer-Review durchlaufen. Insgesamt werden ca. 12.000 Zeitschriften ausgewertet und über die Datenbank verfügbar gemacht. Wie bereits erwähnt, spielt neben der Abgrenzung der Suchräume und Dokumenttypen die Zugänglichkeit und Relevanz der Dokumente eine entscheidende Bedeutung für den Benutzer. Die neueren technologischen Entwicklungen des Web Information Retrieval (IR), wie sie Google oder GS implementieren, werten insbesondere frei zugängliche Dokumente mit ihrer gesamten Text- und Linkinformation automatisch aus. Diese Verfahren sind vor allem deshalb erfolgreich, weil sie Ergebnislisten nach Relevanz gerankt darstellen, einfach und schnell zu recherchieren sind und direkt auf die Volltexte verweisen. Die qualitativen Verfahren der traditionellen Informationsanbieter (z. B. WoS) hingegen zeigen genau bei diesen Punkten (Ranking, Einfachheit und Volltextzugriff) Schwächen, überzeugen aber vor allem durch ihre Stringenz, in diesem Fall die selektive Aufnahme von qualitätsgeprüften Dokumenten in das System und die inhaltliche Erschließung der Dokumente (siehe dazu Mayr und Petras, 2008).
  6. Lewandowski, D.; Mayr, P.: Exploring the academic invisible Web (2006) 0.00 
    0.0024092456 = product of:
  0.016864719 = sum of:
    0.016864719 = weight(_text_:internet in 2580) [ClassicSimilarity], result of:
      0.016864719 = score(doc=2580,freq=2.0), product of:
        0.10340759 = queryWeight, product of:
          2.9522398 = idf(docFreq=6276, maxDocs=44218)
          0.035026826 = queryNorm
        0.16308975 = fieldWeight in 2580, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          2.9522398 = idf(docFreq=6276, maxDocs=44218)
          0.0390625 = fieldNorm(doc=2580)
  0.14285715 = coord(1/7)
    Abstract
    Purpose: To provide a critical review of Bergman's 2001 study on the deep web. In addition, we bring a new concept into the discussion, the academic invisible web (AIW). We define the academic invisible web as consisting of all databases and collections relevant to academia but not searchable by the general-purpose internet search engines. Indexing this part of the invisible web is central to scientific search engines. We provide an overview of approaches followed thus far. Design/methodology/approach: Discussion of measures and calculations, estimation based on informetric laws. Literature review on approaches for uncovering information from the invisible web. Findings: Bergman's size estimate of the invisible web is highly questionable. We demonstrate some major errors in the conceptual design of the Bergman paper. A new (raw) size estimate is given. Research limitations/implications: The precision of our estimate is limited due to a small sample size and lack of reliable data. Practical implications: We can show that no single library alone will be able to index the academic invisible web. We suggest collaboration to accomplish this task. Originality/value: Provides library managers and those interested in developing academic search engines with data on the size and attributes of the academic invisible web.
  7. Mayr, P.: ¬Die virtuelle Steinsuppe : kooperatives Verwalten von elektronischen Ressourcen mit Digilink (2007) 0.00 
    0.0018242779 = product of:
  0.012769945 = sum of:
    0.012769945 = product of:
      0.038309835 = sum of:
        0.038309835 = weight(_text_:29 in 567) [ClassicSimilarity], result of:
          0.038309835 = score(doc=567,freq=2.0), product of:
            0.123213425 = queryWeight, product of:
              3.5176873 = idf(docFreq=3565, maxDocs=44218)
              0.035026826 = queryNorm
            0.31092256 = fieldWeight in 567, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5176873 = idf(docFreq=3565, maxDocs=44218)
              0.0625 = fieldNorm(doc=567)
      0.33333334 = coord(1/3)
  0.14285715 = coord(1/7)
    Source
    Wa(h)re Information: 29. Österreichischer Bibliothekartag Bregenz, 19.-23.9.2006. Hrsg.: Harald Weigel
  8. Mayr, P.; Petras, V.: Building a Terminology Network for Search : the KoMoHe project (2008) 0.00 
    0.0015818839 = product of:
  0.011073187 = sum of:
    0.011073187 = product of:
      0.03321956 = sum of:
        0.03321956 = weight(_text_:22 in 2618) [ClassicSimilarity], result of:
          0.03321956 = score(doc=2618,freq=2.0), product of:
            0.12265798 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.035026826 = queryNorm
            0.2708308 = fieldWeight in 2618, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.0546875 = fieldNorm(doc=2618)
      0.33333334 = coord(1/3)
  0.14285715 = coord(1/7)
    Source
    Metadata for semantic and social applications : proceedings of the International Conference on Dublin Core and Metadata Applications, Berlin, 22 - 26 September 2008, DC 2008: Berlin, Germany / ed. by Jane Greenberg and Wolfgang Klas
  9. Mayr, P.; Petras, V.: Cross-concordances : terminology mapping and its effectiveness for information retrieval (2008) 0.00 
    0.0013682084 = product of:
  0.009577459 = sum of:
    0.009577459 = product of:
      0.028732376 = sum of:
        0.028732376 = weight(_text_:29 in 2323) [ClassicSimilarity], result of:
          0.028732376 = score(doc=2323,freq=2.0), product of:
            0.123213425 = queryWeight, product of:
              3.5176873 = idf(docFreq=3565, maxDocs=44218)
              0.035026826 = queryNorm
            0.23319192 = fieldWeight in 2323, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5176873 = idf(docFreq=3565, maxDocs=44218)
              0.046875 = fieldNorm(doc=2323)
      0.33333334 = coord(1/3)
  0.14285715 = coord(1/7)
    Date
    26.12.2011 13:33:29
  10. Mayr, P.: Bradfordizing als Re-Ranking-Ansatz in Literaturinformationssystemen (2011) 0.00 
    0.0013682084 = product of:
  0.009577459 = sum of:
    0.009577459 = product of:
      0.028732376 = sum of:
        0.028732376 = weight(_text_:29 in 4292) [ClassicSimilarity], result of:
          0.028732376 = score(doc=4292,freq=2.0), product of:
            0.123213425 = queryWeight, product of:
              3.5176873 = idf(docFreq=3565, maxDocs=44218)
              0.035026826 = queryNorm
            0.23319192 = fieldWeight in 4292, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5176873 = idf(docFreq=3565, maxDocs=44218)
              0.046875 = fieldNorm(doc=4292)
      0.33333334 = coord(1/3)
  0.14285715 = coord(1/7)
    Date
    9. 2.2011 17:47:29
  11. Reichert, S.; Mayr, P.: Untersuchung von Relevanzeigenschaften in einem kontrollierten Eyetracking-Experiment (2012) 0.00 
    0.0013559005 = product of:
  0.009491303 = sum of:
    0.009491303 = product of:
      0.028473908 = sum of:
        0.028473908 = weight(_text_:22 in 328) [ClassicSimilarity], result of:
          0.028473908 = score(doc=328,freq=2.0), product of:
            0.12265798 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.035026826 = queryNorm
            0.23214069 = fieldWeight in 328, 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=328)
      0.33333334 = coord(1/3)
  0.14285715 = coord(1/7)
    Date
    22. 7.2012 19:25:54
  12. Lauser, B.; Johannsen, G.; Caracciolo, C.; Hage, W.R. van; Keizer, J.; Mayr, P.: Comparing human and automatic thesaurus mapping approaches in the agricultural domain (2008) 0.00 
    0.0011299171 = product of:
  0.007909419 = sum of:
    0.007909419 = product of:
      0.023728257 = sum of:
        0.023728257 = weight(_text_:22 in 2627) [ClassicSimilarity], result of:
          0.023728257 = score(doc=2627,freq=2.0), product of:
            0.12265798 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.035026826 = queryNorm
            0.19345059 = fieldWeight in 2627, 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=2627)
      0.33333334 = coord(1/3)
  0.14285715 = coord(1/7)
    Source
    Metadata for semantic and social applications : proceedings of the International Conference on Dublin Core and Metadata Applications, Berlin, 22 - 26 September 2008, DC 2008: Berlin, Germany / ed. by Jane Greenberg and Wolfgang Klas

Authors

Years

Languages

Types

Themes