Search (2 results, page 1 of 1)

  • × year_i:[1990 TO 2000}
  • × author_ss:"Ruthven, I."
  • × language_ss:"e"
  1. Lalmas, M.; Ruthven, I.: ¬A model for structured document retrieval : empirical investigations (1997) 0.01
    0.008697838 = product of:
      0.02609351 = sum of:
        0.0071393843 = weight(_text_:in in 727) [ClassicSimilarity], result of:
          0.0071393843 = score(doc=727,freq=2.0), product of:
            0.059380736 = queryWeight, product of:
              1.3602545 = idf(docFreq=30841, maxDocs=44218)
              0.043654136 = queryNorm
            0.120230645 = fieldWeight in 727, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              1.3602545 = idf(docFreq=30841, maxDocs=44218)
              0.0625 = fieldNorm(doc=727)
        0.018954126 = weight(_text_:und in 727) [ClassicSimilarity], result of:
          0.018954126 = score(doc=727,freq=2.0), product of:
            0.09675359 = queryWeight, product of:
              2.216367 = idf(docFreq=13101, maxDocs=44218)
              0.043654136 = queryNorm
            0.19590102 = fieldWeight in 727, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              2.216367 = idf(docFreq=13101, maxDocs=44218)
              0.0625 = fieldNorm(doc=727)
      0.33333334 = coord(2/6)
    
    Abstract
    Documents often display a structure, e.g. several sections, each with several subsections and so on. Taking into account the structure of a document allows the retrieval process to focus on those parts of the document that are most relevant to an information need. In previous work, we developed a model for the representation and the retrieval of structured documents. This paper reports the first experimental study of the effectiveness and applicability of the model
    Source
    Hypertext - Information Retrieval - Multimedia '97: Theorien, Modelle und Implementierungen integrierter elektronischer Informationssysteme. Proceedings HIM '97. Hrsg.: N. Fuhr u.a
  2. Ruthven, I.; Lalmas, M.: Selective relevance feedback using term characteristics (1999) 0.00
    0.0014873719 = product of:
      0.008924231 = sum of:
        0.008924231 = weight(_text_:in in 3824) [ClassicSimilarity], result of:
          0.008924231 = score(doc=3824,freq=2.0), product of:
            0.059380736 = queryWeight, product of:
              1.3602545 = idf(docFreq=30841, maxDocs=44218)
              0.043654136 = queryNorm
            0.15028831 = fieldWeight in 3824, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              1.3602545 = idf(docFreq=30841, maxDocs=44218)
              0.078125 = fieldNorm(doc=3824)
      0.16666667 = coord(1/6)
    
    Source
    Vocabulary as a central concept in digital libraries: interdisciplinary concepts, challenges, and opportunities : proceedings of the Third International Conference an Conceptions of Library and Information Science (COLIS3), Dubrovnik, Croatia, 23-26 May 1999. Ed. by T. Arpanac et al