Search (48 results, page 3 of 3)

  • × language_ss:"e"
  • × theme_ss:"Semantisches Umfeld in Indexierung u. Retrieval"
  1. Ingwersen, P.; Järvelin, K.: ¬The turn : integration of information seeking and retrieval in context (2005) 0.01 
    0.0051747737 = product of:
  0.0103495475 = sum of:
    0.0103495475 = product of:
      0.01552432 = sum of:
        0.00776216 = weight(_text_:h in 1323) [ClassicSimilarity], result of:
          0.00776216 = score(doc=1323,freq=2.0), product of:
            0.113111675 = queryWeight, product of:
              2.4844491 = idf(docFreq=10020, maxDocs=44218)
              0.045527868 = queryNorm
            0.06862386 = fieldWeight in 1323, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              2.4844491 = idf(docFreq=10020, maxDocs=44218)
              0.01953125 = fieldNorm(doc=1323)
        0.00776216 = weight(_text_:h in 1323) [ClassicSimilarity], result of:
          0.00776216 = score(doc=1323,freq=2.0), product of:
            0.113111675 = queryWeight, product of:
              2.4844491 = idf(docFreq=10020, maxDocs=44218)
              0.045527868 = queryNorm
            0.06862386 = fieldWeight in 1323, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              2.4844491 = idf(docFreq=10020, maxDocs=44218)
              0.01953125 = fieldNorm(doc=1323)
      0.6666667 = coord(2/3)
  0.5 = coord(1/2)
    Footnote
    Rez. in: Mitt. VÖB 59(2006) H.2, S.81-83 (O. Oberhauser): "Mit diesem Band haben zwei herausragende Vertreter der europäischen Informationswissenschaft, die Professoren Peter Ingwersen (Kopenhagen) und Kalervo Järvelin (Tampere) ein Werk vorgelegt, das man vielleicht dereinst als ihr opus magnum bezeichnen wird. Mich würde dies nicht überraschen, denn die Autoren unternehmen hier den ambitionierten Versuch, zwei informations wissenschaftliche Forschungstraditionen, die einander bisher in eher geringem Ausmass begegneten, unter einem gesamtheitlichen kognitiven Ansatz zu vereinen - das primär im sozialwissenschaftlichen Bereich verankerte Forschungsgebiet "Information Seeking and Retrieval" (IS&R) und das vorwiegend im Informatikbereich angesiedelte "Information Retrieval" (IR). Dabei geht es ihnen auch darum, den seit etlichen Jahren zwar dominierenden, aber auch als zu individualistisch kritisierten kognitiven Ansatz so zu erweitern, dass technologische, verhaltensbezogene und kooperative Aspekte in kohärenter Weise berücksichtigt werden. Dies geschieht auf folgende Weise in neun Kapiteln: - Zunächst werden die beiden "Lager" - die an Systemen und Laborexperimenten orientierte IR-Tradition und die an Benutzerfragen orientierte IS&R-Fraktion - einander gegenübergestellt und einige zentrale Begriffe geklärt. - Im zweiten Kapitel erfolgt eine ausführliche Darstellung der kognitiven Richtung der Informationswissenschaft, insbesondere hinsichtlich des Informationsbegriffes. - Daran schliesst sich ein Überblick über die bisherige Forschung zu "Information Seeking" (IS) - eine äusserst brauchbare Einführung in die Forschungsfragen und Modelle, die Forschungsmethodik sowie die in diesem Bereich offenen Fragen, z.B. die aufgrund der einseitigen Ausrichtung des Blickwinkels auf den Benutzer mangelnde Betrachtung der Benutzer-System-Interaktion. - In analoger Weise wird im vierten Kapitel die systemorientierte IRForschung in einem konzentrierten Überblick vorgestellt, in dem es sowohl um das "Labormodell" als auch Ansätze wie die Verarbeitung natürlicher Sprache und Expertensysteme geht. Aspekte wie Relevanz, Anfragemodifikation und Performanzmessung werden ebenso angesprochen wie die Methodik - von den ersten Laborexperimenten bis zu TREC und darüber hinaus.
  2. Efthimiadis, E.N.: User choices : a new yardstick for the evaluation of ranking algorithms for interactive query expansion (1995) 0.01 
    0.0051403316 = product of:
  0.010280663 = sum of:
    0.010280663 = product of:
      0.030841988 = sum of:
        0.030841988 = weight(_text_:22 in 5697) [ClassicSimilarity], result of:
          0.030841988 = score(doc=5697,freq=2.0), product of:
            0.15943083 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.045527868 = queryNorm
            0.19345059 = fieldWeight in 5697, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.0390625 = fieldNorm(doc=5697)
      0.33333334 = coord(1/3)
  0.5 = coord(1/2)
    Date
    22. 2.1996 13:14:10
  3. Song, D.; Bruza, P.D.: Towards context sensitive information inference (2003) 0.01 
    0.0051403316 = product of:
  0.010280663 = sum of:
    0.010280663 = product of:
      0.030841988 = sum of:
        0.030841988 = weight(_text_:22 in 1428) [ClassicSimilarity], result of:
          0.030841988 = score(doc=1428,freq=2.0), product of:
            0.15943083 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.045527868 = queryNorm
            0.19345059 = fieldWeight in 1428, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.0390625 = fieldNorm(doc=1428)
      0.33333334 = coord(1/3)
  0.5 = coord(1/2)
    Date
    22. 3.2003 19:35:46
  4. Shiri, A.A.; Revie, C.: Query expansion behavior within a thesaurus-enhanced search environment : a user-centered evaluation (2006) 0.01 
    0.0051403316 = product of:
  0.010280663 = sum of:
    0.010280663 = product of:
      0.030841988 = sum of:
        0.030841988 = weight(_text_:22 in 56) [ClassicSimilarity], result of:
          0.030841988 = score(doc=56,freq=2.0), product of:
            0.15943083 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.045527868 = queryNorm
            0.19345059 = fieldWeight in 56, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.0390625 = fieldNorm(doc=56)
      0.33333334 = coord(1/3)
  0.5 = coord(1/2)
    Date
    22. 7.2006 16:32:43
  5. Brandão, W.C.; Santos, R.L.T.; Ziviani, N.; Moura, E.S. de; Silva, A.S. da: Learning to expand queries using entities (2014) 0.01 
    0.0051403316 = product of:
  0.010280663 = sum of:
    0.010280663 = product of:
      0.030841988 = sum of:
        0.030841988 = weight(_text_:22 in 1343) [ClassicSimilarity], result of:
          0.030841988 = score(doc=1343,freq=2.0), product of:
            0.15943083 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.045527868 = queryNorm
            0.19345059 = fieldWeight in 1343, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.0390625 = fieldNorm(doc=1343)
      0.33333334 = coord(1/3)
  0.5 = coord(1/2)
    Date
    22. 8.2014 17:07:50
  6. Bradford, R.B.: Relationship discovery in large text collections using Latent Semantic Indexing (2006) 0.00 
    0.004112265 = product of:
  0.00822453 = sum of:
    0.00822453 = product of:
      0.02467359 = sum of:
        0.02467359 = weight(_text_:22 in 1163) [ClassicSimilarity], result of:
          0.02467359 = score(doc=1163,freq=2.0), product of:
            0.15943083 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.045527868 = queryNorm
            0.15476047 = fieldWeight in 1163, 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=1163)
      0.33333334 = coord(1/3)
  0.5 = coord(1/2)
    Source
    Proceedings of the Fourth Workshop on Link Analysis, Counterterrorism, and Security, SIAM Data Mining Conference, Bethesda, MD, 20-22 April, 2006. [http://www.siam.org/meetings/sdm06/workproceed/Link%20Analysis/15.pdf]
  7. Brunetti, J.M.; Roberto García, R.: User-centered design and evaluation of overview components for semantic data exploration (2014) 0.00 
    0.004112265 = product of:
  0.00822453 = sum of:
    0.00822453 = product of:
      0.02467359 = sum of:
        0.02467359 = weight(_text_:22 in 1626) [ClassicSimilarity], result of:
          0.02467359 = score(doc=1626,freq=2.0), product of:
            0.15943083 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.045527868 = 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)
      0.33333334 = coord(1/3)
  0.5 = coord(1/2)
    Date
    20. 1.2015 18:30:22
  8. Thenmalar, S.; Geetha, T.V.: Enhanced ontology-based indexing and searching (2014) 0.00 
    0.0035982318 = product of:
  0.0071964636 = sum of:
    0.0071964636 = product of:
      0.021589391 = sum of:
        0.021589391 = weight(_text_:22 in 1633) [ClassicSimilarity], result of:
          0.021589391 = score(doc=1633,freq=2.0), product of:
            0.15943083 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.045527868 = 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)
      0.33333334 = coord(1/3)
  0.5 = coord(1/2)
    Date
    20. 1.2015 18:30:22

Authors

Years

Types

  • a 44
  • el 7
  • m 3
  • r 1
  • s 1
  • More… Less…

Themes

Subjects

Classifications