Search (5 results, page 1 of 1)

  • × author_ss:"Mutschke, P."
  1. Mutschke, P.: Processing scientific networks in bibliographic databases (1994) 0.02 
    0.01633573 = product of:
  0.03267146 = sum of:
    0.03267146 = product of:
      0.06534292 = sum of:
        0.06534292 = weight(_text_:systems in 8846) [ClassicSimilarity], result of:
          0.06534292 = score(doc=8846,freq=2.0), product of:
            0.16037072 = queryWeight, product of:
              3.0731742 = idf(docFreq=5561, maxDocs=44218)
              0.052184064 = queryNorm
            0.4074492 = fieldWeight in 8846, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.0731742 = idf(docFreq=5561, maxDocs=44218)
              0.09375 = fieldNorm(doc=8846)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Source
    Information systems and data analysis: prospects - foundations - applications. Proc. of the 17th Annual Conference of the Gesellschaft für Klassifikation, Kaiserslautern, March 3-5, 1993. Ed.: H.-H. Bock et al
  2. Mutschke, P.: Uncertainty and actor-oriented information retrieval in my-AKCESS : an approach based on fuzzy set theory (1996) 0.01 
    0.013613109 = product of:
  0.027226217 = sum of:
    0.027226217 = product of:
      0.054452434 = sum of:
        0.054452434 = weight(_text_:systems in 5906) [ClassicSimilarity], result of:
          0.054452434 = score(doc=5906,freq=2.0), product of:
            0.16037072 = queryWeight, product of:
              3.0731742 = idf(docFreq=5561, maxDocs=44218)
              0.052184064 = queryNorm
            0.339541 = fieldWeight in 5906, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.0731742 = idf(docFreq=5561, maxDocs=44218)
              0.078125 = fieldNorm(doc=5906)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Source
    Data analysis and information systems, statistical and conceptual approaches: Proceedings of the 19th Annual Conference of the Gesellschaft für Klassifikation e.V., University of Basel, March 8-10, 1995. Ed.: H.-H. Bock u. W. Polask
  3. Grivel, L.; Mutschke, P.; Polanco, X.: Thematic mapping on bibliographic databases by cluster analysis : a description of the SDOC environment with SOLIS (1995) 0.01 
    0.012372886 = product of:
  0.024745772 = sum of:
    0.024745772 = product of:
      0.049491543 = sum of:
        0.049491543 = weight(_text_:22 in 1900) [ClassicSimilarity], result of:
          0.049491543 = score(doc=1900,freq=2.0), product of:
            0.1827397 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.052184064 = queryNorm
            0.2708308 = fieldWeight in 1900, 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=1900)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Source
    Knowledge organization. 22(1995) no.2, S.70-77
  4. Hellweg, H.; Krause, J.; Mandl, T.; Marx, J.; Müller, M.N.O.; Mutschke, P.; Strötgen, R.: Treatment of semantic heterogeneity in information retrieval (2001) 0.01 
    0.010890487 = product of:
  0.021780973 = sum of:
    0.021780973 = product of:
      0.043561947 = sum of:
        0.043561947 = weight(_text_:systems in 6560) [ClassicSimilarity], result of:
          0.043561947 = score(doc=6560,freq=2.0), product of:
            0.16037072 = queryWeight, product of:
              3.0731742 = idf(docFreq=5561, maxDocs=44218)
              0.052184064 = queryNorm
            0.2716328 = fieldWeight in 6560, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.0731742 = idf(docFreq=5561, maxDocs=44218)
              0.0625 = fieldNorm(doc=6560)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Abstract
    Nowadays, users of information services are faced with highly decentralised, heterogeneous document sources with different content analysis. Semantic heterogeneity occurs e.g. when resources using different systems for content description are searched using a simple query system. This report describes several approaches of handling semantic heterogeneity used in projects of the German Social Science Information Centre
  5. Mayr, P.; Schaer, P.; Mutschke, P.: ¬A science model driven retrieval prototype (2011) 0.01 
    0.008167865 = product of:
  0.01633573 = sum of:
    0.01633573 = product of:
      0.03267146 = sum of:
        0.03267146 = weight(_text_:systems in 649) [ClassicSimilarity], result of:
          0.03267146 = score(doc=649,freq=2.0), product of:
            0.16037072 = queryWeight, product of:
              3.0731742 = idf(docFreq=5561, maxDocs=44218)
              0.052184064 = queryNorm
            0.2037246 = fieldWeight in 649, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.0731742 = idf(docFreq=5561, maxDocs=44218)
              0.046875 = fieldNorm(doc=649)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Abstract
    This paper is about a better understanding of the structure and dynamics of science and the usage of these insights for compensating the typical problems that arises in metadata-driven Digital Libraries. Three science model driven retrieval services are presented: co-word analysis based query expansion, re-ranking via Bradfordizing and author centrality. The services are evaluated with relevance assessments from which two important implications emerge: (1) precision values of the retrieval services are the same or better than the tf-idf retrieval baseline and (2) each service retrieved a disjoint set of documents. The different services each favor quite other - but still relevant - documents than pure term-frequency based rankings. The proposed models and derived retrieval services therefore open up new viewpoints on the scientific knowledge space and provide an alternative framework to structure scholarly information systems.

Authors

Years

Types

Themes