Search (3 results, page 1 of 1)

0.095224164 = product of:
  0.2380604 = sum of:
    0.16052344 = weight(_text_:monographien in 2789) [ClassicSimilarity], result of:
      0.16052344 = score(doc=2789,freq=8.0), product of:
        0.217941 = queryWeight, product of:
          6.666449 = idf(docFreq=152, maxDocs=44218)
          0.032692216 = queryNorm
        0.73654544 = fieldWeight in 2789, product of:
          2.828427 = tf(freq=8.0), with freq of:
            8.0 = termFreq=8.0
          6.666449 = idf(docFreq=152, maxDocs=44218)
          0.0390625 = fieldNorm(doc=2789)
    0.008871616 = weight(_text_:und in 2789) [ClassicSimilarity], result of:
      0.008871616 = score(doc=2789,freq=2.0), product of:
        0.07245795 = queryWeight, product of:
          2.216367 = idf(docFreq=13101, maxDocs=44218)
          0.032692216 = queryNorm
        0.12243814 = fieldWeight in 2789, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          2.216367 = idf(docFreq=13101, maxDocs=44218)
          0.0390625 = fieldNorm(doc=2789)
    0.01712277 = weight(_text_:zur in 2789) [ClassicSimilarity], result of:
      0.01712277 = score(doc=2789,freq=2.0), product of:
        0.100663416 = queryWeight, product of:
          3.079125 = idf(docFreq=5528, maxDocs=44218)
          0.032692216 = queryNorm
        0.17009923 = fieldWeight in 2789, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          3.079125 = idf(docFreq=5528, maxDocs=44218)
          0.0390625 = fieldNorm(doc=2789)
    0.004725794 = weight(_text_:in in 2789) [ClassicSimilarity], result of:
      0.004725794 = score(doc=2789,freq=4.0), product of:
        0.044469737 = queryWeight, product of:
          1.3602545 = idf(docFreq=30841, maxDocs=44218)
          0.032692216 = queryNorm
        0.10626988 = fieldWeight in 2789, product of:
          2.0 = tf(freq=4.0), with freq of:
            4.0 = termFreq=4.0
          1.3602545 = idf(docFreq=30841, maxDocs=44218)
          0.0390625 = fieldNorm(doc=2789)
    0.012744125 = weight(_text_:der in 2789) [ClassicSimilarity], result of:
      0.012744125 = score(doc=2789,freq=4.0), product of:
        0.073026784 = queryWeight, product of:
          2.2337668 = idf(docFreq=12875, maxDocs=44218)
          0.032692216 = queryNorm
        0.17451303 = fieldWeight in 2789, product of:
          2.0 = tf(freq=4.0), with freq of:
            4.0 = termFreq=4.0
          2.2337668 = idf(docFreq=12875, maxDocs=44218)
          0.0390625 = fieldNorm(doc=2789)
    0.034072634 = product of:
      0.1022179 = sum of:
        0.1022179 = weight(_text_:datenverarbeitung in 2789) [ClassicSimilarity], result of:
          0.1022179 = score(doc=2789,freq=4.0), product of:
            0.2068191 = queryWeight, product of:
              6.326249 = idf(docFreq=214, maxDocs=44218)
              0.032692216 = queryNorm
            0.4942382 = fieldWeight in 2789, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              6.326249 = idf(docFreq=214, maxDocs=44218)
              0.0390625 = fieldNorm(doc=2789)
      0.33333334 = coord(1/3)
  0.4 = coord(6/15)

Abstract

Das wachsende Informationsvolumen im WWW führt paradoxerweise zu einer immer schwierigeren Nutzung, das Finden und Verknüpfen von Informationen in einem unstrukturierten Umfeld wird zur Sisyphosarbeit. Hier versprechen Semantic-Web-Ansätze Abhilfe. Die Autoren beschreiben Technologien, wie eine semantische Integration verteilter Daten durch verteilte Ontologien erreicht werden kann. Diese Techniken sind sowohl für Forscher als auch für Professionals interessant, die z.B. die Integration von Produktdaten aus verteilten Datenbanken im WWW oder von lose miteinander verbunden Anwendungen in verteilten Organisationen implementieren sollen.

Classification

ST 205 Informatik / Monographien / Vernetzung, verteilte Systeme / Internet allgemein
ST 515 Informatik / Monographien / Einzelne Anwendungen der Datenverarbeitung / Wirtschaftsinformatik / Wissensmanagement, Information engineering

RVK

ST 205 Informatik / Monographien / Vernetzung, verteilte Systeme / Internet allgemein
ST 515 Informatik / Monographien / Einzelne Anwendungen der Datenverarbeitung / Wirtschaftsinformatik / Wissensmanagement, Information engineering

0.010274089 = product of:
  0.051370446 = sum of:
    0.024840524 = weight(_text_:und in 37) [ClassicSimilarity], result of:
      0.024840524 = score(doc=37,freq=8.0), product of:
        0.07245795 = queryWeight, product of:
          2.216367 = idf(docFreq=13101, maxDocs=44218)
          0.032692216 = queryNorm
        0.34282678 = fieldWeight in 37, product of:
          2.828427 = tf(freq=8.0), with freq of:
            8.0 = termFreq=8.0
          2.216367 = idf(docFreq=13101, maxDocs=44218)
          0.0546875 = fieldNorm(doc=37)
    0.004678297 = weight(_text_:in in 37) [ClassicSimilarity], result of:
      0.004678297 = score(doc=37,freq=2.0), product of:
        0.044469737 = queryWeight, product of:
          1.3602545 = idf(docFreq=30841, maxDocs=44218)
          0.032692216 = queryNorm
        0.10520181 = fieldWeight in 37, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          1.3602545 = idf(docFreq=30841, maxDocs=44218)
          0.0546875 = fieldNorm(doc=37)
    0.021851625 = weight(_text_:der in 37) [ClassicSimilarity], result of:
      0.021851625 = score(doc=37,freq=6.0), product of:
        0.073026784 = queryWeight, product of:
          2.2337668 = idf(docFreq=12875, maxDocs=44218)
          0.032692216 = queryNorm
        0.29922754 = fieldWeight in 37, product of:
          2.4494898 = tf(freq=6.0), with freq of:
            6.0 = termFreq=6.0
          2.2337668 = idf(docFreq=12875, maxDocs=44218)
          0.0546875 = fieldNorm(doc=37)
  0.2 = coord(3/15)

Abstract

Ontologien haben durch die aktuellen Entwicklungen des Semantic Web große Beachtung erfahren, da jetzt Technologien bereitgestellt werden, die eine Verwendung von Ontologien in Informationssystemen ermöglichen. Beginnend mit den grundlegenden Konzepten und Ideen von Ontologien, die der Philosophie und Linguistik entstammen, stellt das Buch den aktuellen Stand der Technik im Bereich unterstützender Technologien aus der Semantic Web Forschung dar und zeigt vielversprechende Anwendungsbiete auf.

5.9777097E-4 = product of:
  0.008966564 = sum of:
    0.008966564 = weight(_text_:in in 2605) [ClassicSimilarity], result of:
      0.008966564 = score(doc=2605,freq=10.0), product of:
        0.044469737 = queryWeight, product of:
          1.3602545 = idf(docFreq=30841, maxDocs=44218)
          0.032692216 = queryNorm
        0.20163295 = fieldWeight in 2605, product of:
          3.1622777 = tf(freq=10.0), with freq of:
            10.0 = termFreq=10.0
          1.3602545 = idf(docFreq=30841, maxDocs=44218)
          0.046875 = fieldNorm(doc=2605)
  0.06666667 = coord(1/15)

Abstract

For introductory information retrieval courses at the undergraduate and graduate level in computer science, information science and computer engineering departments. Written by a leader in the field of information retrieval, Search Engines: Information Retrieval in Practice, is designed to give undergraduate students the understanding and tools they need to evaluate, compare and modify search engines. Coverage of the underlying IR and mathematical models reinforce key concepts. The book's numerous programming exercises make extensive use of Galago, a Java-based open source search engine. SUPPLEMENTS / Extensive lecture slides (in PDF and PPT format) / Solutions to selected end of chapter problems (Instructors only) / Test collections for exercises / Galago search engine