Search (4 results, page 1 of 1)

Did you mean:
lcsh's%3a%22World wide web %20information retrieval system%29%22 4
lcshs%3a%22World wide web %20information retrieval system%29%22 4

Lepsky, K.; Vorhauer, J.: Lingo - ein open source System für die Automatische Indexierung deutschsprachiger Dokumente (2006) 0.03

0.03332427 = product of:
  0.099972814 = sum of:
    0.034289423 = weight(_text_:retrieval in 3581) [ClassicSimilarity], result of:
      0.034289423 = score(doc=3581,freq=2.0), product of:
        0.12824841 = queryWeight, product of:
          3.024915 = idf(docFreq=5836, maxDocs=44218)
          0.042397358 = queryNorm
        0.26736724 = fieldWeight in 3581, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          3.024915 = idf(docFreq=5836, maxDocs=44218)
          0.0625 = fieldNorm(doc=3581)
    0.065683395 = product of:
      0.09852509 = sum of:
        0.052571043 = weight(_text_:system in 3581) [ClassicSimilarity], result of:
          0.052571043 = score(doc=3581,freq=4.0), product of:
            0.13353272 = queryWeight, product of:
              3.1495528 = idf(docFreq=5152, maxDocs=44218)
              0.042397358 = queryNorm
            0.3936941 = fieldWeight in 3581, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              3.1495528 = idf(docFreq=5152, maxDocs=44218)
              0.0625 = fieldNorm(doc=3581)
        0.045954052 = weight(_text_:22 in 3581) [ClassicSimilarity], result of:
          0.045954052 = score(doc=3581,freq=2.0), product of:
            0.14846832 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.042397358 = queryNorm
            0.30952093 = fieldWeight in 3581, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.0625 = fieldNorm(doc=3581)
      0.6666667 = coord(2/3)
  0.33333334 = coord(2/6)

Abstract: Lingo ist ein frei verfügbares System (open source) zur automatischen Indexierung der deutschen Sprache. Bei der Entwicklung von lingo standen hohe Konfigurierbarkeit und Flexibilität des Systems für unterschiedliche Einsatzmöglichkeiten im Vordergrund. Der Beitrag zeigt den Nutzen einer linguistisch basierten automatischen Indexierung für das Information Retrieval auf. Die für eine Retrievalverbesserung zur Verfügung stehende linguistische Funktionalität von lingo wird vorgestellt und an Beispielen erläutert: Grundformerkennung, Kompositumerkennung bzw. Kompositumzerlegung, Wortrelationierung, lexikalische und algorithmische Mehrwortgruppenerkennung, OCR-Fehlerkorrektur. Der offene Systemaufbau von lingo wird beschrieben, mögliche Einsatzszenarien und Anwendungsgrenzen werden benannt.
Date: 24. 3.2006 12:22:02

Gödert, W.; Lepsky, K.: Semantische Umfeldsuche im Information Retrieval (1998) 0.01

0.007071832 = product of:
  0.042430993 = sum of:
    0.042430993 = weight(_text_:retrieval in 606) [ClassicSimilarity], result of:
      0.042430993 = score(doc=606,freq=4.0), product of:
        0.12824841 = queryWeight, product of:
          3.024915 = idf(docFreq=5836, maxDocs=44218)
          0.042397358 = queryNorm
        0.33085006 = fieldWeight in 606, product of:
          2.0 = tf(freq=4.0), with freq of:
            4.0 = termFreq=4.0
          3.024915 = idf(docFreq=5836, maxDocs=44218)
          0.0546875 = fieldNorm(doc=606)
  0.16666667 = coord(1/6)

Theme: Semantisches Umfeld in Indexierung u. Retrieval

Lepsky, K.; Siepmann, J.; Zimmermann, A.: Automatische Indexierung für Online-Kataloge : Ergebnisse eines Retrievaltests (1996) 0.01
```
0.005000541 = product of:
  0.030003246 = sum of:
    0.030003246 = weight(_text_:retrieval in 3251) [ClassicSimilarity], result of:
      0.030003246 = score(doc=3251,freq=2.0), product of:
        0.12824841 = queryWeight, product of:
          3.024915 = idf(docFreq=5836, maxDocs=44218)
          0.042397358 = queryNorm
        0.23394634 = fieldWeight in 3251, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          3.024915 = idf(docFreq=5836, maxDocs=44218)
          0.0546875 = fieldNorm(doc=3251)
  0.16666667 = coord(1/6)
```
Abstract

Examines the effectiveness of automated indexing and presents the results of a study of information retrieval from a segment (40.000 items) of the ULB Düsseldorf database. The segment was selected randomly and all the documents included were indexed automatically. The search topics included 50 subject areas ranging from economic growth to alternative energy sources. While there were 876 relevant documents in the database segment for each of the 50 search topics, the recall ranged from 1 to 244 references, with the average being 17.52 documents per topic. Therefore it seems that, in the immediate future, automatic indexing should be used in combination with intellectual indexing

Lepsky, K.: Automatisches Indexieren (2023) 0.00

0.002254155 = product of:
  0.01352493 = sum of:
    0.01352493 = product of:
      0.04057479 = sum of:
        0.04057479 = weight(_text_:29 in 781) [ClassicSimilarity], result of:
          0.04057479 = score(doc=781,freq=2.0), product of:
            0.14914064 = queryWeight, product of:
              3.5176873 = idf(docFreq=3565, maxDocs=44218)
              0.042397358 = queryNorm
            0.27205724 = fieldWeight in 781, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5176873 = idf(docFreq=3565, maxDocs=44218)
              0.0546875 = fieldNorm(doc=781)
      0.33333334 = coord(1/3)
  0.16666667 = coord(1/6)

Date: 24.11.2022 13:29:16

Search (4 results, page 1 of 1)

Authors

Years

Themes