Search (14 results, page 1 of 1)

  • × author_ss:"Schaer, P."
  1. Mayr, P.; Mutschke, P.; Schaer, P.; Sure, Y.: Mehrwertdienste für das Information Retrieval (2013) 0.02
    0.023293726 = product of:
      0.046587452 = sum of:
        0.029852329 = product of:
          0.059704658 = sum of:
            0.059704658 = weight(_text_:p in 935) [ClassicSimilarity], result of:
              0.059704658 = score(doc=935,freq=6.0), product of:
                0.1239606 = queryWeight, product of:
                  3.5955126 = idf(docFreq=3298, maxDocs=44218)
                  0.034476474 = queryNorm
                0.48164222 = fieldWeight in 935, product of:
                  2.4494898 = tf(freq=6.0), with freq of:
                    6.0 = termFreq=6.0
                  3.5955126 = idf(docFreq=3298, maxDocs=44218)
                  0.0546875 = fieldNorm(doc=935)
          0.5 = coord(1/2)
        0.016735122 = product of:
          0.033470243 = sum of:
            0.033470243 = weight(_text_:b in 935) [ClassicSimilarity], result of:
              0.033470243 = score(doc=935,freq=2.0), product of:
                0.12214884 = queryWeight, product of:
                  3.542962 = idf(docFreq=3476, maxDocs=44218)
                  0.034476474 = queryNorm
                0.27401197 = fieldWeight in 935, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.542962 = idf(docFreq=3476, maxDocs=44218)
                  0.0546875 = fieldNorm(doc=935)
          0.5 = coord(1/2)
      0.5 = coord(2/4)
    
    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.
  2. Breuer, T.; Tavakolpoursaleh, N.; Schaer, P.; Hienert, D.; Schaible, J.; Castro, L.J.: Online Information Retrieval Evaluation using the STELLA Framework (2022) 0.02
    0.017618334 = product of:
      0.035236668 = sum of:
        0.020892277 = product of:
          0.041784555 = sum of:
            0.041784555 = weight(_text_:p in 640) [ClassicSimilarity], result of:
              0.041784555 = score(doc=640,freq=4.0), product of:
                0.1239606 = queryWeight, product of:
                  3.5955126 = idf(docFreq=3298, maxDocs=44218)
                  0.034476474 = queryNorm
                0.33707932 = fieldWeight in 640, product of:
                  2.0 = tf(freq=4.0), with freq of:
                    4.0 = termFreq=4.0
                  3.5955126 = idf(docFreq=3298, maxDocs=44218)
                  0.046875 = fieldNorm(doc=640)
          0.5 = coord(1/2)
        0.014344391 = product of:
          0.028688783 = sum of:
            0.028688783 = weight(_text_:b in 640) [ClassicSimilarity], result of:
              0.028688783 = score(doc=640,freq=2.0), product of:
                0.12214884 = queryWeight, product of:
                  3.542962 = idf(docFreq=3476, maxDocs=44218)
                  0.034476474 = queryNorm
                0.23486741 = fieldWeight in 640, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.542962 = idf(docFreq=3476, maxDocs=44218)
                  0.046875 = fieldNorm(doc=640)
          0.5 = coord(1/2)
      0.5 = coord(2/4)
    
    Abstract
    Involving users in early phases of software development has become a common strategy as it enables developers to consider user needs from the beginning. Once a system is in production, new opportunities to observe, evaluate and learn from users emerge as more information becomes available. Gathering information from users to continuously evaluate their behavior is a common practice for commercial software, while the Cranfield paradigm remains the preferred option for Information Retrieval (IR) and recommendation systems in the academic world. Here we introduce the Infrastructures for Living Labs STELLA project which aims to create an evaluation infrastructure allowing experimental systems to run along production web-based academic search systems with real users. STELLA combines user interactions and log files analyses to enable large-scale A/B experiments for academic search.
    Type
    p
  3. Schaer, P.: Integration von Open-Access-Repositorien in Fachportale (2010) 0.02
    0.016792025 = product of:
      0.03358405 = sum of:
        0.017235247 = product of:
          0.034470495 = sum of:
            0.034470495 = weight(_text_:p in 2320) [ClassicSimilarity], result of:
              0.034470495 = score(doc=2320,freq=2.0), product of:
                0.1239606 = queryWeight, product of:
                  3.5955126 = idf(docFreq=3298, maxDocs=44218)
                  0.034476474 = queryNorm
                0.27807623 = fieldWeight in 2320, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.5955126 = idf(docFreq=3298, maxDocs=44218)
                  0.0546875 = fieldNorm(doc=2320)
          0.5 = coord(1/2)
        0.016348802 = product of:
          0.032697603 = sum of:
            0.032697603 = weight(_text_:22 in 2320) [ClassicSimilarity], result of:
              0.032697603 = score(doc=2320,freq=2.0), product of:
                0.120730735 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.034476474 = 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)
      0.5 = coord(2/4)
    
    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
  4. Wilde, A.; Wenninger, A.; Hopt, O.; Schaer, P.; Zapilko, B.: Aktivitäten von GESIS im Kontext von Open Data und Zugang zu sozialwissenschaftlichen Forschungsergebnissen (2010) 0.01
    0.014558731 = product of:
      0.029117461 = sum of:
        0.01477307 = product of:
          0.02954614 = sum of:
            0.02954614 = weight(_text_:p in 4275) [ClassicSimilarity], result of:
              0.02954614 = score(doc=4275,freq=2.0), product of:
                0.1239606 = queryWeight, product of:
                  3.5955126 = idf(docFreq=3298, maxDocs=44218)
                  0.034476474 = queryNorm
                0.23835106 = fieldWeight in 4275, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.5955126 = idf(docFreq=3298, maxDocs=44218)
                  0.046875 = fieldNorm(doc=4275)
          0.5 = coord(1/2)
        0.014344391 = product of:
          0.028688783 = sum of:
            0.028688783 = weight(_text_:b in 4275) [ClassicSimilarity], result of:
              0.028688783 = score(doc=4275,freq=2.0), product of:
                0.12214884 = queryWeight, product of:
                  3.542962 = idf(docFreq=3476, maxDocs=44218)
                  0.034476474 = queryNorm
                0.23486741 = fieldWeight in 4275, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.542962 = idf(docFreq=3476, maxDocs=44218)
                  0.046875 = fieldNorm(doc=4275)
          0.5 = coord(1/2)
      0.5 = coord(2/4)
    
  5. Munkelt, J.; Schaer, P.: Towards an IR test collection for the German National Library (2018) 0.01
    0.008617624 = product of:
      0.034470495 = sum of:
        0.034470495 = product of:
          0.06894099 = sum of:
            0.06894099 = weight(_text_:p in 5780) [ClassicSimilarity], result of:
              0.06894099 = score(doc=5780,freq=2.0), product of:
                0.1239606 = queryWeight, product of:
                  3.5955126 = idf(docFreq=3298, maxDocs=44218)
                  0.034476474 = queryNorm
                0.55615246 = fieldWeight in 5780, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.5955126 = idf(docFreq=3298, maxDocs=44218)
                  0.109375 = fieldNorm(doc=5780)
          0.5 = coord(1/2)
      0.25 = coord(1/4)
    
  6. Mayr, P.; Mutschke, P.; Petras, V.; Schaer, P.; Sure, Y.: Applying science models for search (2010) 0.01
    0.008529237 = product of:
      0.034116946 = sum of:
        0.034116946 = product of:
          0.06823389 = sum of:
            0.06823389 = weight(_text_:p in 4663) [ClassicSimilarity], result of:
              0.06823389 = score(doc=4663,freq=6.0), product of:
                0.1239606 = queryWeight, product of:
                  3.5955126 = idf(docFreq=3298, maxDocs=44218)
                  0.034476474 = queryNorm
                0.55044824 = fieldWeight in 4663, product of:
                  2.4494898 = tf(freq=6.0), with freq of:
                    6.0 = termFreq=6.0
                  3.5955126 = idf(docFreq=3298, maxDocs=44218)
                  0.0625 = fieldNorm(doc=4663)
          0.5 = coord(1/2)
      0.25 = coord(1/4)
    
  7. Balog, K.; Schuth, A.; Dekker, P.; Tavakolpoursaleh, N.; Schaer, P.; Chuang, P.-Y.: Overview of the TREC 2016 Open Search track Academic Search Edition (2016) 0.01
    0.008529237 = product of:
      0.034116946 = sum of:
        0.034116946 = product of:
          0.06823389 = sum of:
            0.06823389 = weight(_text_:p in 43) [ClassicSimilarity], result of:
              0.06823389 = score(doc=43,freq=6.0), product of:
                0.1239606 = queryWeight, product of:
                  3.5955126 = idf(docFreq=3298, maxDocs=44218)
                  0.034476474 = queryNorm
                0.55044824 = fieldWeight in 43, product of:
                  2.4494898 = tf(freq=6.0), with freq of:
                    6.0 = termFreq=6.0
                  3.5955126 = idf(docFreq=3298, maxDocs=44218)
                  0.0625 = fieldNorm(doc=43)
          0.5 = coord(1/2)
      0.25 = coord(1/4)
    
  8. Mayr, P.; Schaer, P.; Mutschke, P.: ¬A science model driven retrieval prototype (2011) 0.01
    0.006396928 = product of:
      0.025587711 = sum of:
        0.025587711 = product of:
          0.051175423 = sum of:
            0.051175423 = weight(_text_:p in 649) [ClassicSimilarity], result of:
              0.051175423 = score(doc=649,freq=6.0), product of:
                0.1239606 = queryWeight, product of:
                  3.5955126 = idf(docFreq=3298, maxDocs=44218)
                  0.034476474 = queryNorm
                0.4128362 = fieldWeight in 649, product of:
                  2.4494898 = tf(freq=6.0), with freq of:
                    6.0 = termFreq=6.0
                  3.5955126 = idf(docFreq=3298, maxDocs=44218)
                  0.046875 = fieldNorm(doc=649)
          0.5 = coord(1/2)
      0.25 = coord(1/4)
    
  9. Schaer, P.; Mayr, P.; Sünkler, S.; Lewandowski, D.: How relevant is the long tail? : a relevance assessment study on million short (2016) 0.00
    0.004352558 = product of:
      0.017410232 = sum of:
        0.017410232 = product of:
          0.034820464 = sum of:
            0.034820464 = weight(_text_:p in 3144) [ClassicSimilarity], result of:
              0.034820464 = score(doc=3144,freq=4.0), product of:
                0.1239606 = queryWeight, product of:
                  3.5955126 = idf(docFreq=3298, maxDocs=44218)
                  0.034476474 = queryNorm
                0.28089944 = fieldWeight in 3144, product of:
                  2.0 = tf(freq=4.0), with freq of:
                    4.0 = termFreq=4.0
                  3.5955126 = idf(docFreq=3298, maxDocs=44218)
                  0.0390625 = fieldNorm(doc=3144)
          0.5 = coord(1/2)
      0.25 = coord(1/4)
    
  10. Posch, L.; Schaer, P.; Bleier, A.; Strohmaier, M.: ¬A system for probabilistic linking of thesauri and classification systems (2015) 0.00
    0.004308812 = product of:
      0.017235247 = sum of:
        0.017235247 = product of:
          0.034470495 = sum of:
            0.034470495 = weight(_text_:p in 2515) [ClassicSimilarity], result of:
              0.034470495 = score(doc=2515,freq=2.0), product of:
                0.1239606 = queryWeight, product of:
                  3.5955126 = idf(docFreq=3298, maxDocs=44218)
                  0.034476474 = queryNorm
                0.27807623 = fieldWeight in 2515, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.5955126 = idf(docFreq=3298, maxDocs=44218)
                  0.0546875 = fieldNorm(doc=2515)
          0.5 = coord(1/2)
      0.25 = coord(1/4)
    
  11. Fühles-Ubach, S.; Schaer, P.; Lepsky, K.; Seidler-de Alwis, R.: Data Librarian : ein neuer Studienschwerpunkt für wissenschaftliche Bibliotheken und Forschungseinrichtungen (2019) 0.00
    0.004308812 = product of:
      0.017235247 = sum of:
        0.017235247 = product of:
          0.034470495 = sum of:
            0.034470495 = weight(_text_:p in 5836) [ClassicSimilarity], result of:
              0.034470495 = score(doc=5836,freq=2.0), product of:
                0.1239606 = queryWeight, product of:
                  3.5955126 = idf(docFreq=3298, maxDocs=44218)
                  0.034476474 = queryNorm
                0.27807623 = fieldWeight in 5836, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.5955126 = idf(docFreq=3298, maxDocs=44218)
                  0.0546875 = fieldNorm(doc=5836)
          0.5 = coord(1/2)
      0.25 = coord(1/4)
    
  12. Munkelt, J.; Schaer, P.; Lepsky, K.: Towards an IR test collection for the German National Library (2018) 0.00
    0.0036932675 = product of:
      0.01477307 = sum of:
        0.01477307 = product of:
          0.02954614 = sum of:
            0.02954614 = weight(_text_:p in 4311) [ClassicSimilarity], result of:
              0.02954614 = score(doc=4311,freq=2.0), product of:
                0.1239606 = queryWeight, product of:
                  3.5955126 = idf(docFreq=3298, maxDocs=44218)
                  0.034476474 = queryNorm
                0.23835106 = fieldWeight in 4311, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.5955126 = idf(docFreq=3298, maxDocs=44218)
                  0.046875 = fieldNorm(doc=4311)
          0.5 = coord(1/2)
      0.25 = coord(1/4)
    
  13. Neumann, M.; Steinberg, J.; Schaer, P.: Web-ccraping for non-programmers : introducing OXPath for digital library metadata harvesting (2017) 0.00
    0.003077723 = product of:
      0.012310892 = sum of:
        0.012310892 = product of:
          0.024621785 = sum of:
            0.024621785 = weight(_text_:p in 3895) [ClassicSimilarity], result of:
              0.024621785 = score(doc=3895,freq=2.0), product of:
                0.1239606 = queryWeight, product of:
                  3.5955126 = idf(docFreq=3298, maxDocs=44218)
                  0.034476474 = queryNorm
                0.19862589 = fieldWeight in 3895, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.5955126 = idf(docFreq=3298, maxDocs=44218)
                  0.0390625 = fieldNorm(doc=3895)
          0.5 = coord(1/2)
      0.25 = coord(1/4)
    
  14. Schaer, P.: Sprachmodelle und neuronale Netze im Information Retrieval (2023) 0.00
    0.003077723 = product of:
      0.012310892 = sum of:
        0.012310892 = product of:
          0.024621785 = sum of:
            0.024621785 = weight(_text_:p in 799) [ClassicSimilarity], result of:
              0.024621785 = score(doc=799,freq=2.0), product of:
                0.1239606 = queryWeight, product of:
                  3.5955126 = idf(docFreq=3298, maxDocs=44218)
                  0.034476474 = queryNorm
                0.19862589 = fieldWeight in 799, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.5955126 = idf(docFreq=3298, maxDocs=44218)
                  0.0390625 = fieldNorm(doc=799)
          0.5 = coord(1/2)
      0.25 = coord(1/4)