Search (1 results, page 1 of 1)

  • × author_ss:"Jenkins, J."
  • × theme_ss:"Klassifikationssysteme im Online-Retrieval"
  • × type_ss:"a"
  • × year_i:[1990 TO 2000}
  1. Welty, C.A.; Jenkins, J.: Formal ontology for subject (1999) 0.00
    0.0020609628 = product of:
      0.012365777 = sum of:
        0.012365777 = weight(_text_:in in 4962) [ClassicSimilarity], result of:
          0.012365777 = score(doc=4962,freq=6.0), product of:
            0.059380736 = queryWeight, product of:
              1.3602545 = idf(docFreq=30841, maxDocs=44218)
              0.043654136 = queryNorm
            0.2082456 = fieldWeight in 4962, product of:
              2.4494898 = tf(freq=6.0), with freq of:
                6.0 = termFreq=6.0
              1.3602545 = idf(docFreq=30841, maxDocs=44218)
              0.0625 = fieldNorm(doc=4962)
      0.16666667 = coord(1/6)
    
    Abstract
    Subject based classification is an important part of information retrieval, and has a long history in libraries, where a subject taxonomy was used to determine the location of books on the shelves. We have been studying the notion of subject itself, in order to determine a formal ontology of subject for a large scale digital library card catalog system. Deep analysis reveals a lot of ambiguity regarding the usage of subjects in existing systems and terminology, and we attempt to formalize these notions into a single framework for representing it.