Search (4 results, page 1 of 1)

  • × language_ss:"e"
  • × theme_ss:"Semantic Web"
  • × theme_ss:"Semantisches Umfeld in Indexierung u. Retrieval"
  • × year_i:[2010 TO 2020}
  1. Brunetti, J.M.; Roberto García, R.: User-centered design and evaluation of overview components for semantic data exploration (2014) 0.00 
    2.776628E-4 = product of:
  0.006386244 = sum of:
    0.006386244 = product of:
      0.012772488 = sum of:
        0.012772488 = weight(_text_:22 in 1626) [ClassicSimilarity], result of:
          0.012772488 = score(doc=1626,freq=2.0), product of:
            0.08253069 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.023567878 = queryNorm
            0.15476047 = fieldWeight in 1626, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.03125 = fieldNorm(doc=1626)
      0.5 = coord(1/2)
  0.04347826 = coord(1/23)
    Date
    20. 1.2015 18:30:22
  2. Zenz, G.; Zhou, X.; Minack, E.; Siberski, W.; Nejdl, W.: Interactive query construction for keyword search on the Semantic Web (2012) 0.00 
    2.4153895E-4 = product of:
  0.0055553955 = sum of:
    0.0055553955 = product of:
      0.011110791 = sum of:
        0.011110791 = weight(_text_:1 in 430) [ClassicSimilarity], result of:
          0.011110791 = score(doc=430,freq=4.0), product of:
            0.057894554 = queryWeight, product of:
              2.4565027 = idf(docFreq=10304, maxDocs=44218)
              0.023567878 = queryNorm
            0.19191428 = fieldWeight in 430, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              2.4565027 = idf(docFreq=10304, maxDocs=44218)
              0.0390625 = fieldNorm(doc=430)
      0.5 = coord(1/2)
  0.04347826 = coord(1/23)
    Abstract
    With the advance of the semantic Web, increasing amounts of data are available in a structured and machine-understandable form. This opens opportunities for users to employ semantic queries instead of simple keyword-based ones to accurately express the information need. However, constructing semantic queries is a demanding task for human users [11]. To compose a valid semantic query, a user has to (1) master a query language (e.g., SPARQL) and (2) acquire sufficient knowledge about the ontology or the schema of the data source. While there are systems which support this task with visual tools [21, 26] or natural language interfaces [3, 13, 14, 18], the process of query construction can still be complex and time consuming. According to [24], users prefer keyword search, and struggle with the construction of semantic queries although being supported with a natural language interface. Several keyword search approaches have already been proposed to ease information seeking on semantic data [16, 32, 35] or databases [1, 31]. However, keyword queries lack the expressivity to precisely describe the user's intent. As a result, ranking can at best put query intentions of the majority on top, making it impossible to take the intentions of all users into consideration.
  3. Smith, D.A.; Shadbolt, N.R.: FacetOntology : expressive descriptions of facets in the Semantic Web (2012) 0.00 
    1.707938E-4 = product of:
  0.0039282576 = sum of:
    0.0039282576 = product of:
      0.007856515 = sum of:
        0.007856515 = weight(_text_:1 in 2208) [ClassicSimilarity], result of:
          0.007856515 = score(doc=2208,freq=2.0), product of:
            0.057894554 = queryWeight, product of:
              2.4565027 = idf(docFreq=10304, maxDocs=44218)
              0.023567878 = queryNorm
            0.13570388 = fieldWeight in 2208, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              2.4565027 = idf(docFreq=10304, maxDocs=44218)
              0.0390625 = fieldNorm(doc=2208)
      0.5 = coord(1/2)
  0.04347826 = coord(1/23)
    Footnote
    Volltext unter: ..\http://eprints.soton.ac.uk/345363/1/paper.pdf.
  4. Semantic search over the Web (2012) 0.00 
    1.3663506E-4 = product of:
  0.0031426062 = sum of:
    0.0031426062 = product of:
      0.0062852125 = sum of:
        0.0062852125 = weight(_text_:1 in 411) [ClassicSimilarity], result of:
          0.0062852125 = score(doc=411,freq=2.0), product of:
            0.057894554 = queryWeight, product of:
              2.4565027 = idf(docFreq=10304, maxDocs=44218)
              0.023567878 = queryNorm
            0.1085631 = fieldWeight in 411, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              2.4565027 = idf(docFreq=10304, maxDocs=44218)
              0.03125 = fieldNorm(doc=411)
      0.5 = coord(1/2)
  0.04347826 = coord(1/23)
    Isbn
    978-3-642-25007-1

Authors

Types

Themes