Search (4 results, page 1 of 1)

  • × author_ss:"Schaer, P."
  • × year_i:[2010 TO 2020}
  1. Posch, L.; Schaer, P.; Bleier, A.; Strohmaier, M.: ¬A system for probabilistic linking of thesauri and classification systems (2015) 0.05
    0.054877207 = product of:
      0.10975441 = sum of:
        0.07430784 = weight(_text_:et in 2515) [ClassicSimilarity], result of:
          0.07430784 = score(doc=2515,freq=2.0), product of:
            0.20477319 = queryWeight, product of:
              4.692005 = idf(docFreq=1101, maxDocs=44218)
              0.043643 = queryNorm
            0.36287874 = fieldWeight in 2515, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              4.692005 = idf(docFreq=1101, maxDocs=44218)
              0.0546875 = fieldNorm(doc=2515)
        0.035446577 = product of:
          0.07089315 = sum of:
            0.07089315 = weight(_text_:al in 2515) [ClassicSimilarity], result of:
              0.07089315 = score(doc=2515,freq=2.0), product of:
                0.20001286 = queryWeight, product of:
                  4.582931 = idf(docFreq=1228, maxDocs=44218)
                  0.043643 = queryNorm
                0.35444298 = fieldWeight in 2515, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  4.582931 = idf(docFreq=1228, maxDocs=44218)
                  0.0546875 = fieldNorm(doc=2515)
          0.5 = coord(1/2)
      0.5 = coord(2/4)
    
    Abstract
    This paper presents a system which creates and visualizes probabilistic semantic links between concepts in a thesaurus and classes in a classification system. For creating the links, we build on the Polylingual Labeled Topic Model (PLL-TM) (Posch et al., in KI 2015: advances in artificial intelligence, 2015). PLL-TM identifies probable thesaurus descriptors for each class in the classification system by using information from the natural language text of documents, their assigned thesaurus descriptors and their designated classes. The links are then presented to users of the system in an interactive visualization, providing them with an automatically generated overview of the relations between the thesaurus and the classification system.
  2. Mayr, P.; Mutschke, P.; Petras, V.; Schaer, P.; Sure, Y.: Applying science models for search (2010) 0.01
    0.011474612 = product of:
      0.04589845 = sum of:
        0.04589845 = weight(_text_:c in 4663) [ClassicSimilarity], result of:
          0.04589845 = score(doc=4663,freq=2.0), product of:
            0.1505424 = queryWeight, product of:
              3.4494052 = idf(docFreq=3817, maxDocs=44218)
              0.043643 = queryNorm
            0.3048872 = fieldWeight in 4663, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.4494052 = idf(docFreq=3817, maxDocs=44218)
              0.0625 = fieldNorm(doc=4663)
      0.25 = coord(1/4)
    
    Source
    Information und Wissen: global, sozial und frei? Proceedings des 12. Internationalen Symposiums für Informationswissenschaft (ISI 2011) ; Hildesheim, 9. - 11. März 2011. Hrsg.: J. Griesbaum, T. Mandl u. C. Womser-Hacker
  3. Mayr, P.; Mutschke, P.; Schaer, P.; Sure, Y.: Mehrwertdienste für das Information Retrieval (2013) 0.01
    0.010040285 = product of:
      0.04016114 = sum of:
        0.04016114 = weight(_text_:c in 935) [ClassicSimilarity], result of:
          0.04016114 = score(doc=935,freq=2.0), product of:
            0.1505424 = queryWeight, product of:
              3.4494052 = idf(docFreq=3817, maxDocs=44218)
              0.043643 = queryNorm
            0.2667763 = fieldWeight in 935, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.4494052 = idf(docFreq=3817, maxDocs=44218)
              0.0546875 = fieldNorm(doc=935)
      0.25 = coord(1/4)
    
    Abstract
    Ziel des Projekts ist die Entwicklung und Erprobung von metadatenbasierten Mehr-wertdiensten für Retrievalumgebungen mit mehreren Datenbanken: a) Search Term Recommender (STR) als Dienst zum automatischen Vorschlagen von Suchbegriffen aus kontrollierten Vokabularen, b) Bradfordizing als Dienst zum Re-Ranking von Ergebnismengen nach Kernzeitschriften und c) Autorenzentralität als Dienst zum Re-Ranking von. Ergebnismengen nach Zentralität der Autoren in Autorennetzwerken. Schwerpunkt des Projektes ist die prototypische mplementierung der drei Mehrwertdienste in einer integrierten Retrieval-Testumgebung und insbesondere deren quantitative und qualitative Evaluation hinsichtlich Verbesserung der Retrievalqualität bei Einsatz der Mehrwertdienste.
  4. Schaer, P.: Integration von Open-Access-Repositorien in Fachportale (2010) 0.01
    0.0051738964 = product of:
      0.020695586 = sum of:
        0.020695586 = product of:
          0.04139117 = sum of:
            0.04139117 = weight(_text_:22 in 2320) [ClassicSimilarity], result of:
              0.04139117 = score(doc=2320,freq=2.0), product of:
                0.15283036 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.043643 = queryNorm
                0.2708308 = fieldWeight in 2320, 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=2320)
          0.5 = coord(1/2)
      0.25 = coord(1/4)
    
    Source
    Wissensspeicher in digitalen Räumen: Nachhaltigkeit - Verfügbarkeit - semantische Interoperabilität. Proceedings der 11. Tagung der Deutschen Sektion der Internationalen Gesellschaft für Wissensorganisation, Konstanz, 20. bis 22. Februar 2008. Hrsg.: J. Sieglerschmidt u. H.P.Ohly