Search (5 results, page 1 of 1)

  • × author_ss:"Petras, V."
  • × year_i:[2010 TO 2020}
  1. Petras, V.: Heterogenitätsbehandlung und Terminology Mapping durch Crosskonkordanzen : eine Fallstudie (2010) 0.02
    0.024208048 = product of:
      0.048416097 = sum of:
        0.048416097 = sum of:
          0.0047357627 = weight(_text_:a in 3730) [ClassicSimilarity], result of:
            0.0047357627 = score(doc=3730,freq=2.0), product of:
              0.053105544 = queryWeight, product of:
                1.153047 = idf(docFreq=37942, maxDocs=44218)
                0.046056706 = queryNorm
              0.089176424 = fieldWeight in 3730, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                1.153047 = idf(docFreq=37942, maxDocs=44218)
                0.0546875 = fieldNorm(doc=3730)
          0.043680333 = weight(_text_:22 in 3730) [ClassicSimilarity], result of:
            0.043680333 = score(doc=3730,freq=2.0), product of:
              0.16128273 = queryWeight, product of:
                3.5018296 = idf(docFreq=3622, maxDocs=44218)
                0.046056706 = queryNorm
              0.2708308 = fieldWeight in 3730, 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=3730)
      0.5 = coord(1/2)
    
    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
    Type
    a
  2. Stiller, J.; Olensky, M.; Petras, V.: ¬A framework for the evaluation of automatic metadata enrichments (2014) 0.00
    0.0023678814 = product of:
      0.0047357627 = sum of:
        0.0047357627 = product of:
          0.009471525 = sum of:
            0.009471525 = weight(_text_:a in 1587) [ClassicSimilarity], result of:
              0.009471525 = score(doc=1587,freq=8.0), product of:
                0.053105544 = queryWeight, product of:
                  1.153047 = idf(docFreq=37942, maxDocs=44218)
                  0.046056706 = queryNorm
                0.17835285 = fieldWeight in 1587, product of:
                  2.828427 = tf(freq=8.0), with freq of:
                    8.0 = termFreq=8.0
                  1.153047 = idf(docFreq=37942, maxDocs=44218)
                  0.0546875 = fieldNorm(doc=1587)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Abstract
    Automatic enrichment of collections connects data to vocabularies, which supports the contextualization of content and adds searchable text to metadata. The paper introduces a framework of four dimensions (frequency, coverage, relevance and error rate) that measure both the suitability of the enrichment for the object and the enrichments' contribution to search success. To verify the framework, it is applied to the evaluation of automatic enrichments in the digital library Europeana. The analysis of 100 result sets and their corresponding queries (1,121 documents total) shows the framework is a valuable tool for guiding enrichments and determining the value of enrichment efforts.
    Type
    a
  3. Mayr, P.; Mutschke, P.; Petras, V.; Schaer, P.; Sure, Y.: Applying science models for search (2010) 0.00
    0.0023435948 = product of:
      0.0046871896 = sum of:
        0.0046871896 = product of:
          0.009374379 = sum of:
            0.009374379 = weight(_text_:a in 4663) [ClassicSimilarity], result of:
              0.009374379 = score(doc=4663,freq=6.0), product of:
                0.053105544 = queryWeight, product of:
                  1.153047 = idf(docFreq=37942, maxDocs=44218)
                  0.046056706 = queryNorm
                0.17652355 = fieldWeight in 4663, product of:
                  2.4494898 = tf(freq=6.0), with freq of:
                    6.0 = termFreq=6.0
                  1.153047 = idf(docFreq=37942, maxDocs=44218)
                  0.0625 = fieldNorm(doc=4663)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Abstract
    The paper proposes three different kinds of science models as value-added services that are integrated in the retrieval process to enhance retrieval quailty. The paper discusses the approaches Search Term Recommendation, Bradfordizing and Author Centrality on a general level and addresses implementation issues of the models within a real-life retrieval environment.
    Type
    a
  4. Huckstorf, A.; Petras, V.: Mind the lexical gap : EuroVoc Building Block of the Semantic Web (2011) 0.00
    0.0014351527 = product of:
      0.0028703054 = sum of:
        0.0028703054 = product of:
          0.005740611 = sum of:
            0.005740611 = weight(_text_:a in 2782) [ClassicSimilarity], result of:
              0.005740611 = score(doc=2782,freq=4.0), product of:
                0.053105544 = queryWeight, product of:
                  1.153047 = idf(docFreq=37942, maxDocs=44218)
                  0.046056706 = queryNorm
                0.10809815 = fieldWeight in 2782, product of:
                  2.0 = tf(freq=4.0), with freq of:
                    4.0 = termFreq=4.0
                  1.153047 = idf(docFreq=37942, maxDocs=44218)
                  0.046875 = fieldNorm(doc=2782)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Type
    a
  5. Stiller, J.; Gäde, M.; Petras, V.: Multilingual access to digital libraries : the Europeana use case (2013) 0.00
    0.0011839407 = product of:
      0.0023678814 = sum of:
        0.0023678814 = product of:
          0.0047357627 = sum of:
            0.0047357627 = weight(_text_:a in 902) [ClassicSimilarity], result of:
              0.0047357627 = score(doc=902,freq=2.0), product of:
                0.053105544 = queryWeight, product of:
                  1.153047 = idf(docFreq=37942, maxDocs=44218)
                  0.046056706 = queryNorm
                0.089176424 = fieldWeight in 902, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  1.153047 = idf(docFreq=37942, maxDocs=44218)
                  0.0546875 = fieldNorm(doc=902)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Type
    a