Search (4 results, page 1 of 1)

  • × theme_ss:"Semantisches Umfeld in Indexierung u. Retrieval"
  • × theme_ss:"Wissensrepräsentation"
  • × type_ss:"a"
  1. Knorz, G.; Rein, B.: Semantische Suche in einer Hochschulontologie (2005) 0.02
    0.023477197 = product of:
      0.11738598 = sum of:
        0.11738598 = sum of:
          0.082784034 = weight(_text_:etc in 1852) [ClassicSimilarity], result of:
            0.082784034 = score(doc=1852,freq=2.0), product of:
              0.19761753 = queryWeight, product of:
                5.4164915 = idf(docFreq=533, maxDocs=44218)
                0.036484417 = queryNorm
              0.41891038 = fieldWeight in 1852, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                5.4164915 = idf(docFreq=533, maxDocs=44218)
                0.0546875 = fieldNorm(doc=1852)
          0.034601945 = weight(_text_:22 in 1852) [ClassicSimilarity], result of:
            0.034601945 = score(doc=1852,freq=2.0), product of:
              0.12776221 = queryWeight, product of:
                3.5018296 = idf(docFreq=3622, maxDocs=44218)
                0.036484417 = queryNorm
              0.2708308 = fieldWeight in 1852, 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=1852)
      0.2 = coord(1/5)
    
    Abstract
    Ontologien werden eingesetzt, um durch semantische Fundierung insbesondere für das Dokumentenretrieval eine grundlegend bessere Basis zu haben, als dies gegenwärtiger Stand der Technik ist. Vorgestellt wird eine an der FH Darmstadt entwickelte und eingesetzte Ontologie, die den Gegenstandsbereich Hochschule sowohl breit abdecken und gleichzeitig differenziert semantisch beschreiben soll. Das Problem der semantischen Suche besteht nun darin, dass sie für Informationssuchende so einfach wie bei gängigen Suchmaschinen zu nutzen sein soll, und gleichzeitig auf der Grundlage des aufwendigen Informationsmodells hochwertige Ergebnisse liefern muss. Es wird beschrieben, welche Möglichkeiten die verwendete Software K-Infinity bereitstellt und mit welchem Konzept diese Möglichkeiten für eine semantische Suche nach Dokumenten und anderen Informationseinheiten (Personen, Veranstaltungen, Projekte etc.) eingesetzt werden.
    Date
    11. 2.2011 18:22:58
  2. Wang, Y.-H.; Jhuo, P.-S.: ¬A semantic faceted search with rule-based inference (2009) 0.00
    0.0041203364 = product of:
      0.02060168 = sum of:
        0.02060168 = product of:
          0.04120336 = sum of:
            0.04120336 = weight(_text_:problems in 540) [ClassicSimilarity], result of:
              0.04120336 = score(doc=540,freq=2.0), product of:
                0.15058853 = queryWeight, product of:
                  4.1274753 = idf(docFreq=1937, maxDocs=44218)
                  0.036484417 = queryNorm
                0.27361554 = fieldWeight in 540, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  4.1274753 = idf(docFreq=1937, maxDocs=44218)
                  0.046875 = fieldNorm(doc=540)
          0.5 = coord(1/2)
      0.2 = coord(1/5)
    
    Abstract
    Semantic Search has become an active research of Semantic Web in recent years. The classification methodology plays a pretty critical role in the beginning of search process to disambiguate irrelevant information. However, the applications related to Folksonomy suffer from many obstacles. This study attempts to eliminate the problems resulted from Folksonomy using existing semantic technology. We also focus on how to effectively integrate heterogeneous ontologies over the Internet to acquire the integrity of domain knowledge. A faceted logic layer is abstracted in order to strengthen category framework and organize existing available ontologies according to a series of steps based on the methodology of faceted classification and ontology construction. The result showed that our approach can facilitate the integration of inconsistent or even heterogeneous ontologies. This paper also generalizes the principles of picking appropriate facets with which our facet browser completely complies so that better semantic search result can be obtained.
  3. Järvelin, K.; Kristensen, J.; Niemi, T.; Sormunen, E.; Keskustalo, H.: ¬A deductive data model for query expansion (1996) 0.00
    0.002965881 = product of:
      0.014829405 = sum of:
        0.014829405 = product of:
          0.02965881 = sum of:
            0.02965881 = weight(_text_:22 in 2230) [ClassicSimilarity], result of:
              0.02965881 = score(doc=2230,freq=2.0), product of:
                0.12776221 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.036484417 = queryNorm
                0.23214069 = fieldWeight in 2230, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.046875 = fieldNorm(doc=2230)
          0.5 = coord(1/2)
      0.2 = coord(1/5)
    
    Source
    Proceedings of the 19th Annual International ACM SIGIR Conference on Research and Development in Information Retrieval (ACM SIGIR '96), Zürich, Switzerland, August 18-22, 1996. Eds.: H.P. Frei et al
  4. Thenmalar, S.; Geetha, T.V.: Enhanced ontology-based indexing and searching (2014) 0.00
    0.0017300973 = product of:
      0.008650486 = sum of:
        0.008650486 = product of:
          0.017300973 = sum of:
            0.017300973 = weight(_text_:22 in 1633) [ClassicSimilarity], result of:
              0.017300973 = score(doc=1633,freq=2.0), product of:
                0.12776221 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.036484417 = queryNorm
                0.1354154 = fieldWeight in 1633, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.02734375 = fieldNorm(doc=1633)
          0.5 = coord(1/2)
      0.2 = coord(1/5)
    
    Date
    20. 1.2015 18:30:22