Search (45 results, page 1 of 3)

  • × theme_ss:"Retrievalstudien"
  1. Rajagopal, P.; Ravana, S.D.; Koh, Y.S.; Balakrishnan, V.: Evaluating the effectiveness of information retrieval systems using effort-based relevance judgment (2019) 0.04 
    0.044738617 = product of:
  0.08947723 = sum of:
    0.08947723 = sum of:
      0.05899287 = weight(_text_:v in 5287) [ClassicSimilarity], result of:
        0.05899287 = score(doc=5287,freq=2.0), product of:
          0.219214 = queryWeight, product of:
            4.871427 = idf(docFreq=920, maxDocs=44218)
            0.044999957 = queryNorm
          0.26911086 = fieldWeight in 5287, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            4.871427 = idf(docFreq=920, maxDocs=44218)
            0.0390625 = fieldNorm(doc=5287)
      0.030484365 = weight(_text_:22 in 5287) [ClassicSimilarity], result of:
        0.030484365 = score(doc=5287,freq=2.0), product of:
          0.15758218 = queryWeight, product of:
            3.5018296 = idf(docFreq=3622, maxDocs=44218)
            0.044999957 = queryNorm
          0.19345059 = fieldWeight in 5287, 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=5287)
  0.5 = coord(1/2)
    Date
    20. 1.2015 18:30:22
  2. Lohmann, H.: Verbesserung der Literatursuche durch Dokumentanreicherung und automatische Inhaltserschließung : Das Projekt 'KASCADE' an der Universitäts- und Landesbibliothek Düsseldorf (1999) 0.04 
    0.03539572 = product of:
  0.07079144 = sum of:
    0.07079144 = product of:
      0.14158288 = sum of:
        0.14158288 = weight(_text_:v in 1221) [ClassicSimilarity], result of:
          0.14158288 = score(doc=1221,freq=2.0), product of:
            0.219214 = queryWeight, product of:
              4.871427 = idf(docFreq=920, maxDocs=44218)
              0.044999957 = queryNorm
            0.64586604 = fieldWeight in 1221, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              4.871427 = idf(docFreq=920, maxDocs=44218)
              0.09375 = fieldNorm(doc=1221)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Pages
    V,117,14 S
  3. Chen, H.; Dhar, V.: Cognitive process as a basis for intelligent retrieval system design (1991) 0.02 
    0.023597147 = product of:
  0.047194295 = sum of:
    0.047194295 = product of:
      0.09438859 = sum of:
        0.09438859 = weight(_text_:v in 3845) [ClassicSimilarity], result of:
          0.09438859 = score(doc=3845,freq=2.0), product of:
            0.219214 = queryWeight, product of:
              4.871427 = idf(docFreq=920, maxDocs=44218)
              0.044999957 = queryNorm
            0.43057737 = fieldWeight in 3845, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              4.871427 = idf(docFreq=920, maxDocs=44218)
              0.0625 = fieldNorm(doc=3845)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
  4. Jochum, F.; Weissmann, V.: Struktur und Elemente des Information Retrieval Experiments (1985) 0.02 
    0.023597147 = product of:
  0.047194295 = sum of:
    0.047194295 = product of:
      0.09438859 = sum of:
        0.09438859 = weight(_text_:v in 114) [ClassicSimilarity], result of:
          0.09438859 = score(doc=114,freq=2.0), product of:
            0.219214 = queryWeight, product of:
              4.871427 = idf(docFreq=920, maxDocs=44218)
              0.044999957 = queryNorm
            0.43057737 = fieldWeight in 114, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              4.871427 = idf(docFreq=920, maxDocs=44218)
              0.0625 = fieldNorm(doc=114)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
  5. Fuhr, N.; Niewelt, B.: ¬Ein Retrievaltest mit automatisch indexierten Dokumenten (1984) 0.02 
    0.021339055 = product of:
  0.04267811 = sum of:
    0.04267811 = product of:
      0.08535622 = sum of:
        0.08535622 = weight(_text_:22 in 262) [ClassicSimilarity], result of:
          0.08535622 = score(doc=262,freq=2.0), product of:
            0.15758218 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.044999957 = queryNorm
            0.5416616 = fieldWeight in 262, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.109375 = fieldNorm(doc=262)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Date
    20.10.2000 12:22:23
  6. Tomaiuolo, N.G.; Parker, J.: Maximizing relevant retrieval : keyword and natural language searching (1998) 0.02 
    0.021339055 = product of:
  0.04267811 = sum of:
    0.04267811 = product of:
      0.08535622 = sum of:
        0.08535622 = weight(_text_:22 in 6418) [ClassicSimilarity], result of:
          0.08535622 = score(doc=6418,freq=2.0), product of:
            0.15758218 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.044999957 = queryNorm
            0.5416616 = fieldWeight in 6418, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.109375 = fieldNorm(doc=6418)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Source
    Online. 22(1998) no.6, S.57-58
  7. Voorhees, E.M.; Harman, D.: Overview of the Sixth Text REtrieval Conference (TREC-6) (2000) 0.02 
    0.021339055 = product of:
  0.04267811 = sum of:
    0.04267811 = product of:
      0.08535622 = sum of:
        0.08535622 = weight(_text_:22 in 6438) [ClassicSimilarity], result of:
          0.08535622 = score(doc=6438,freq=2.0), product of:
            0.15758218 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.044999957 = queryNorm
            0.5416616 = fieldWeight in 6438, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.109375 = fieldNorm(doc=6438)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Date
    11. 8.2001 16:22:19
  8. Dalrymple, P.W.: Retrieval by reformulation in two library catalogs : toward a cognitive model of searching behavior (1990) 0.02 
    0.021339055 = product of:
  0.04267811 = sum of:
    0.04267811 = product of:
      0.08535622 = sum of:
        0.08535622 = weight(_text_:22 in 5089) [ClassicSimilarity], result of:
          0.08535622 = score(doc=5089,freq=2.0), product of:
            0.15758218 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.044999957 = queryNorm
            0.5416616 = fieldWeight in 5089, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.109375 = fieldNorm(doc=5089)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Date
    22. 7.2006 18:43:54
  9. Della Mea, V.; Mizzaro, S.: Measuring retrieval effectiveness : a new proposal and a first experimental validation (2004) 0.02 
    0.020647505 = product of:
  0.04129501 = sum of:
    0.04129501 = product of:
      0.08259002 = sum of:
        0.08259002 = weight(_text_:v in 2263) [ClassicSimilarity], result of:
          0.08259002 = score(doc=2263,freq=2.0), product of:
            0.219214 = queryWeight, product of:
              4.871427 = idf(docFreq=920, maxDocs=44218)
              0.044999957 = queryNorm
            0.3767552 = fieldWeight in 2263, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              4.871427 = idf(docFreq=920, maxDocs=44218)
              0.0546875 = fieldNorm(doc=2263)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
  10. López-Ostenero, F.; Peinado, V.; Gonzalo, J.; Verdejo, F.: Interactive question answering : Is Cross-Language harder than monolingual searching? (2008) 0.02 
    0.01769786 = product of:
  0.03539572 = sum of:
    0.03539572 = product of:
      0.07079144 = sum of:
        0.07079144 = weight(_text_:v in 2023) [ClassicSimilarity], result of:
          0.07079144 = score(doc=2023,freq=2.0), product of:
            0.219214 = queryWeight, product of:
              4.871427 = idf(docFreq=920, maxDocs=44218)
              0.044999957 = queryNorm
            0.32293302 = fieldWeight in 2023, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              4.871427 = idf(docFreq=920, maxDocs=44218)
              0.046875 = fieldNorm(doc=2023)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
  11. Petras, V.; Womser-Hacker, C.: Evaluation im Information Retrieval (2023) 0.02 
    0.01769786 = product of:
  0.03539572 = sum of:
    0.03539572 = product of:
      0.07079144 = sum of:
        0.07079144 = weight(_text_:v in 808) [ClassicSimilarity], result of:
          0.07079144 = score(doc=808,freq=2.0), product of:
            0.219214 = queryWeight, product of:
              4.871427 = idf(docFreq=920, maxDocs=44218)
              0.044999957 = queryNorm
            0.32293302 = fieldWeight in 808, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              4.871427 = idf(docFreq=920, maxDocs=44218)
              0.046875 = fieldNorm(doc=808)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
  12. Allan, J.; Callan, J.P.; Croft, W.B.; Ballesteros, L.; Broglio, J.; Xu, J.; Shu, H.: INQUERY at TREC-5 (1997) 0.02 
    0.015242183 = product of:
  0.030484365 = sum of:
    0.030484365 = product of:
      0.06096873 = sum of:
        0.06096873 = weight(_text_:22 in 3103) [ClassicSimilarity], result of:
          0.06096873 = score(doc=3103,freq=2.0), product of:
            0.15758218 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.044999957 = queryNorm
            0.38690117 = fieldWeight in 3103, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.078125 = fieldNorm(doc=3103)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Date
    27. 2.1999 20:55:22
  13. Ng, K.B.; Loewenstern, D.; Basu, C.; Hirsh, H.; Kantor, P.B.: Data fusion of machine-learning methods for the TREC5 routing tak (and other work) (1997) 0.02 
    0.015242183 = product of:
  0.030484365 = sum of:
    0.030484365 = product of:
      0.06096873 = sum of:
        0.06096873 = weight(_text_:22 in 3107) [ClassicSimilarity], result of:
          0.06096873 = score(doc=3107,freq=2.0), product of:
            0.15758218 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.044999957 = queryNorm
            0.38690117 = fieldWeight in 3107, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.078125 = fieldNorm(doc=3107)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Date
    27. 2.1999 20:59:22
  14. Saracevic, T.: On a method for studying the structure and nature of requests in information retrieval (1983) 0.02 
    0.015242183 = product of:
  0.030484365 = sum of:
    0.030484365 = product of:
      0.06096873 = sum of:
        0.06096873 = weight(_text_:22 in 2417) [ClassicSimilarity], result of:
          0.06096873 = score(doc=2417,freq=2.0), product of:
            0.15758218 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.044999957 = queryNorm
            0.38690117 = fieldWeight in 2417, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.078125 = fieldNorm(doc=2417)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Pages
    S.22-25
  15. Angelini, M.; Fazzini, V.; Ferro, N.; Santucci, G.; Silvello, G.: CLAIRE: A combinatorial visual analytics system for information retrieval evaluation (2018) 0.01 
    0.014748218 = product of:
  0.029496435 = sum of:
    0.029496435 = product of:
      0.05899287 = sum of:
        0.05899287 = weight(_text_:v in 5049) [ClassicSimilarity], result of:
          0.05899287 = score(doc=5049,freq=2.0), product of:
            0.219214 = queryWeight, product of:
              4.871427 = idf(docFreq=920, maxDocs=44218)
              0.044999957 = queryNorm
            0.26911086 = fieldWeight in 5049, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              4.871427 = idf(docFreq=920, maxDocs=44218)
              0.0390625 = fieldNorm(doc=5049)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
  16. White, H.D.: Relevance theory and distributions of judgments in document retrieval (2017) 0.01 
    0.014748218 = product of:
  0.029496435 = sum of:
    0.029496435 = product of:
      0.05899287 = sum of:
        0.05899287 = weight(_text_:v in 5099) [ClassicSimilarity], result of:
          0.05899287 = score(doc=5099,freq=2.0), product of:
            0.219214 = queryWeight, product of:
              4.871427 = idf(docFreq=920, maxDocs=44218)
              0.044999957 = queryNorm
            0.26911086 = fieldWeight in 5099, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              4.871427 = idf(docFreq=920, maxDocs=44218)
              0.0390625 = fieldNorm(doc=5099)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Abstract
    This article extends relevance theory (RT) from linguistic pragmatics into information retrieval. Using more than 50 retrieval experiments from the literature as examples, it applies RT to explain the frequency distributions of documents on relevance scales with three or more points. The scale points, which judges in experiments must consider in addition to queries and documents, are communications from researchers. In RT, the relevance of a communication varies directly with its cognitive effects and inversely with the effort of processing it. Researchers define and/or label the scale points to measure the cognitive effects of documents on judges. However, they apparently assume that all scale points as presented are equally easy for judges to process. Yet the notion that points cost variable effort explains fairly well the frequency distributions of judgments across them. By hypothesis, points that cost more effort are chosen by judges less frequently. Effort varies with the vagueness or strictness of scale-point labels and definitions. It is shown that vague scales tend to produce U- or V-shaped distributions, while strict scales tend to produce right-skewed distributions. These results reinforce the paper's more general argument that RT clarifies the concept of relevance in the dialogues of retrieval evaluation.
  17. Rijsbergen, C.J. van: ¬A test for the separation of relevant and non-relevant documents in experimental retrieval collections (1973) 0.01 
    0.012193746 = product of:
  0.024387492 = sum of:
    0.024387492 = product of:
      0.048774984 = sum of:
        0.048774984 = weight(_text_:22 in 5002) [ClassicSimilarity], result of:
          0.048774984 = score(doc=5002,freq=2.0), product of:
            0.15758218 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.044999957 = queryNorm
            0.30952093 = fieldWeight in 5002, 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=5002)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Date
    19. 3.1996 11:22:12
  18. Sanderson, M.: ¬The Reuters test collection (1996) 0.01 
    0.012193746 = product of:
  0.024387492 = sum of:
    0.024387492 = product of:
      0.048774984 = sum of:
        0.048774984 = weight(_text_:22 in 6971) [ClassicSimilarity], result of:
          0.048774984 = score(doc=6971,freq=2.0), product of:
            0.15758218 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.044999957 = queryNorm
            0.30952093 = fieldWeight in 6971, 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=6971)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Source
    Information retrieval: new systems and current research. Proceedings of the 16th Research Colloquium of the British Computer Society Information Retrieval Specialist Group, Drymen, Scotland, 22-23 Mar 94. Ed.: R. Leon
  19. Lespinasse, K.: TREC: une conference pour l'evaluation des systemes de recherche d'information (1997) 0.01 
    0.012193746 = product of:
  0.024387492 = sum of:
    0.024387492 = product of:
      0.048774984 = sum of:
        0.048774984 = weight(_text_:22 in 744) [ClassicSimilarity], result of:
          0.048774984 = score(doc=744,freq=2.0), product of:
            0.15758218 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.044999957 = queryNorm
            0.30952093 = fieldWeight in 744, 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=744)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Date
    1. 8.1996 22:01:00
  20. ¬The Fifth Text Retrieval Conference (TREC-5) (1997) 0.01 
    0.012193746 = product of:
  0.024387492 = sum of:
    0.024387492 = product of:
      0.048774984 = sum of:
        0.048774984 = weight(_text_:22 in 3087) [ClassicSimilarity], result of:
          0.048774984 = score(doc=3087,freq=2.0), product of:
            0.15758218 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.044999957 = queryNorm
            0.30952093 = fieldWeight in 3087, 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=3087)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Abstract
    Proceedings of the 5th TREC-confrerence held in Gaithersburgh, Maryland, Nov 20-22, 1996. Aim of the conference was discussion on retrieval techniques for large test collections. Different research groups used different techniques, such as automated thesauri, term weighting, natural language techniques, relevance feedback and advanced pattern matching, for information retrieval from the same large database. This procedure makes it possible to compare the results. The proceedings include papers, tables of the system results, and brief system descriptions including timing and storage information

Authors

Years

Languages

  • e 37
  • d 6
  • f 1
  • More… Less…

Types

  • a 39
  • s 4
  • m 3
  • x 1
  • More… Less…

Themes

Subjects

Classifications