Search (10 results, page 1 of 1)

  • × author_ss:"Saracevic, T."
  • × year_i:[1980 TO 1990}
  1. Saracevic, T.: On a method for studying the structure and nature of requests in information retrieval (1983) 0.04
    0.039920058 = product of:
      0.09980014 = sum of:
        0.009632425 = weight(_text_:a in 2417) [ClassicSimilarity], result of:
          0.009632425 = score(doc=2417,freq=4.0), product of:
            0.053464882 = queryWeight, product of:
              1.153047 = idf(docFreq=37942, maxDocs=44218)
              0.046368346 = queryNorm
            0.18016359 = fieldWeight in 2417, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              1.153047 = idf(docFreq=37942, maxDocs=44218)
              0.078125 = fieldNorm(doc=2417)
        0.090167716 = sum of:
          0.027345007 = weight(_text_:information in 2417) [ClassicSimilarity], result of:
            0.027345007 = score(doc=2417,freq=6.0), product of:
              0.08139861 = queryWeight, product of:
                1.7554779 = idf(docFreq=20772, maxDocs=44218)
                0.046368346 = queryNorm
              0.3359395 = fieldWeight in 2417, product of:
                2.4494898 = tf(freq=6.0), with freq of:
                  6.0 = termFreq=6.0
                1.7554779 = idf(docFreq=20772, maxDocs=44218)
                0.078125 = fieldNorm(doc=2417)
          0.06282271 = weight(_text_:22 in 2417) [ClassicSimilarity], result of:
            0.06282271 = score(doc=2417,freq=2.0), product of:
              0.16237405 = queryWeight, product of:
                3.5018296 = idf(docFreq=3622, maxDocs=44218)
                0.046368346 = 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)
      0.4 = coord(2/5)
    
    Pages
    S.22-25
    Series
    Proceedings of the American Society for Information Science; vol. 20
    Source
    Productivity in the information age : proceedings of the 46th ASIS annual meeting, 1983. Ed.: Raymond F Vondra
    Type
    a
  2. Saracevic, T.; Kantor, P.: ¬A study of information seeking and retrieving : pt.2: users, questions, and effectiveness (1988) 0.01
    0.009982069 = product of:
      0.024955172 = sum of:
        0.01155891 = weight(_text_:a in 3258) [ClassicSimilarity], result of:
          0.01155891 = score(doc=3258,freq=4.0), product of:
            0.053464882 = queryWeight, product of:
              1.153047 = idf(docFreq=37942, maxDocs=44218)
              0.046368346 = queryNorm
            0.2161963 = fieldWeight in 3258, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              1.153047 = idf(docFreq=37942, maxDocs=44218)
              0.09375 = fieldNorm(doc=3258)
        0.013396261 = product of:
          0.026792523 = sum of:
            0.026792523 = weight(_text_:information in 3258) [ClassicSimilarity], result of:
              0.026792523 = score(doc=3258,freq=4.0), product of:
                0.08139861 = queryWeight, product of:
                  1.7554779 = idf(docFreq=20772, maxDocs=44218)
                  0.046368346 = queryNorm
                0.3291521 = fieldWeight in 3258, product of:
                  2.0 = tf(freq=4.0), with freq of:
                    4.0 = termFreq=4.0
                  1.7554779 = idf(docFreq=20772, maxDocs=44218)
                  0.09375 = fieldNorm(doc=3258)
          0.5 = coord(1/2)
      0.4 = coord(2/5)
    
    Source
    Journal of the American Society for Information Science. 39(1988) no.3, S.177-196
    Type
    a
  3. Saracevic, T.; Kantor, P.: ¬A study of information seeking and retrieving : pt.3: searchers, searches, and overlap (1988) 0.01
    0.009982069 = product of:
      0.024955172 = sum of:
        0.01155891 = weight(_text_:a in 3259) [ClassicSimilarity], result of:
          0.01155891 = score(doc=3259,freq=4.0), product of:
            0.053464882 = queryWeight, product of:
              1.153047 = idf(docFreq=37942, maxDocs=44218)
              0.046368346 = queryNorm
            0.2161963 = fieldWeight in 3259, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              1.153047 = idf(docFreq=37942, maxDocs=44218)
              0.09375 = fieldNorm(doc=3259)
        0.013396261 = product of:
          0.026792523 = sum of:
            0.026792523 = weight(_text_:information in 3259) [ClassicSimilarity], result of:
              0.026792523 = score(doc=3259,freq=4.0), product of:
                0.08139861 = queryWeight, product of:
                  1.7554779 = idf(docFreq=20772, maxDocs=44218)
                  0.046368346 = queryNorm
                0.3291521 = fieldWeight in 3259, product of:
                  2.0 = tf(freq=4.0), with freq of:
                    4.0 = termFreq=4.0
                  1.7554779 = idf(docFreq=20772, maxDocs=44218)
                  0.09375 = fieldNorm(doc=3259)
          0.5 = coord(1/2)
      0.4 = coord(2/5)
    
    Source
    Journal of the American Society for Information Science. 39(1988) no.3, S.197-216
    Type
    a
  4. Saracevic, T.: ¬A research project on classification of questions in information retrieval : preliminary work (1980) 0.01
    0.008318391 = product of:
      0.020795977 = sum of:
        0.009632425 = weight(_text_:a in 2418) [ClassicSimilarity], result of:
          0.009632425 = score(doc=2418,freq=4.0), product of:
            0.053464882 = queryWeight, product of:
              1.153047 = idf(docFreq=37942, maxDocs=44218)
              0.046368346 = queryNorm
            0.18016359 = fieldWeight in 2418, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              1.153047 = idf(docFreq=37942, maxDocs=44218)
              0.078125 = fieldNorm(doc=2418)
        0.011163551 = product of:
          0.022327103 = sum of:
            0.022327103 = weight(_text_:information in 2418) [ClassicSimilarity], result of:
              0.022327103 = score(doc=2418,freq=4.0), product of:
                0.08139861 = queryWeight, product of:
                  1.7554779 = idf(docFreq=20772, maxDocs=44218)
                  0.046368346 = queryNorm
                0.27429342 = fieldWeight in 2418, product of:
                  2.0 = tf(freq=4.0), with freq of:
                    4.0 = termFreq=4.0
                  1.7554779 = idf(docFreq=20772, maxDocs=44218)
                  0.078125 = fieldNorm(doc=2418)
          0.5 = coord(1/2)
      0.4 = coord(2/5)
    
    Source
    Communicating information : proceedings of the 43rd Asis annual meeting, Anaheim, California, October 5-10, 1980. Eds.: Alan R Benenfeld u. Edward John Kazlauskas
    Type
    a
  5. Saracevic, T.: Information retrieval (1985) 0.01
    0.008234787 = product of:
      0.020586967 = sum of:
        0.009535614 = weight(_text_:a in 3302) [ClassicSimilarity], result of:
          0.009535614 = score(doc=3302,freq=2.0), product of:
            0.053464882 = queryWeight, product of:
              1.153047 = idf(docFreq=37942, maxDocs=44218)
              0.046368346 = queryNorm
            0.17835285 = fieldWeight in 3302, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              1.153047 = idf(docFreq=37942, maxDocs=44218)
              0.109375 = fieldNorm(doc=3302)
        0.011051352 = product of:
          0.022102704 = sum of:
            0.022102704 = weight(_text_:information in 3302) [ClassicSimilarity], result of:
              0.022102704 = score(doc=3302,freq=2.0), product of:
                0.08139861 = queryWeight, product of:
                  1.7554779 = idf(docFreq=20772, maxDocs=44218)
                  0.046368346 = queryNorm
                0.27153665 = fieldWeight in 3302, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  1.7554779 = idf(docFreq=20772, maxDocs=44218)
                  0.109375 = fieldNorm(doc=3302)
          0.5 = coord(1/2)
      0.4 = coord(2/5)
    
    Type
    a
  6. Saracevic, T.; Kantor, P.; Chamis, A.Y.: ¬A study of information seeking and retrieving : pt.1: Background and methodology (1988) 0.01
    0.0074442835 = product of:
      0.018610708 = sum of:
        0.009138121 = weight(_text_:a in 1963) [ClassicSimilarity], result of:
          0.009138121 = score(doc=1963,freq=10.0), product of:
            0.053464882 = queryWeight, product of:
              1.153047 = idf(docFreq=37942, maxDocs=44218)
              0.046368346 = queryNorm
            0.1709182 = fieldWeight in 1963, product of:
              3.1622777 = tf(freq=10.0), with freq of:
                10.0 = termFreq=10.0
              1.153047 = idf(docFreq=37942, maxDocs=44218)
              0.046875 = fieldNorm(doc=1963)
        0.009472587 = product of:
          0.018945174 = sum of:
            0.018945174 = weight(_text_:information in 1963) [ClassicSimilarity], result of:
              0.018945174 = score(doc=1963,freq=8.0), product of:
                0.08139861 = queryWeight, product of:
                  1.7554779 = idf(docFreq=20772, maxDocs=44218)
                  0.046368346 = queryNorm
                0.23274569 = fieldWeight in 1963, product of:
                  2.828427 = tf(freq=8.0), with freq of:
                    8.0 = termFreq=8.0
                  1.7554779 = idf(docFreq=20772, maxDocs=44218)
                  0.046875 = fieldNorm(doc=1963)
          0.5 = coord(1/2)
      0.4 = coord(2/5)
    
    Abstract
    The objectives of the study were to conduct a series of observations and experiments under as real-life a situation as possible related to: (i) user context of questions in information retrieval; (ii) the structure and classification of questions; (iii) cognitive traits and decision making of searchers; and (iv) different searches of the same question. The study is presented in three parts: part 1 presents the background of the study and describes the models, measures, methods, procedures and statistical analyses used. Pt.2 is devoted to results related to users, questions, and effectiveness measures, and pt.3 to results related to searchers, searches, and overlap studies. A concluding summary of all results is presented in pt.3
    Footnote
    Wiederabgedruckt in: Readings in information retrieval. Ed.: K. Sparck Jones u. P. Willett. Sam Francisco: Morgan Kaufmann 1997. S.175-190.
    Source
    Journal of the American Society for Information Science. 39(1988), S.161-176
    Type
    a
  7. Saracevic, T.: Measuring the degree of agreement between searchers (1984) 0.01
    0.007058388 = product of:
      0.01764597 = sum of:
        0.008173384 = weight(_text_:a in 2410) [ClassicSimilarity], result of:
          0.008173384 = score(doc=2410,freq=2.0), product of:
            0.053464882 = queryWeight, product of:
              1.153047 = idf(docFreq=37942, maxDocs=44218)
              0.046368346 = queryNorm
            0.15287387 = fieldWeight in 2410, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              1.153047 = idf(docFreq=37942, maxDocs=44218)
              0.09375 = fieldNorm(doc=2410)
        0.009472587 = product of:
          0.018945174 = sum of:
            0.018945174 = weight(_text_:information in 2410) [ClassicSimilarity], result of:
              0.018945174 = score(doc=2410,freq=2.0), product of:
                0.08139861 = queryWeight, product of:
                  1.7554779 = idf(docFreq=20772, maxDocs=44218)
                  0.046368346 = queryNorm
                0.23274569 = fieldWeight in 2410, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  1.7554779 = idf(docFreq=20772, maxDocs=44218)
                  0.09375 = fieldNorm(doc=2410)
          0.5 = coord(1/2)
      0.4 = coord(2/5)
    
    Source
    Challenges to an information society : proceedings of the 47th ASIS annual Meeting, Philadelphia, Pennsylvania, October 21-25, 1984. Ed.: Barbara Flood
    Type
    a
  8. Bellardo, T.; Saracevic, T.: Online searching and search output : relationships between overlap, relevance, recall and precision (1987) 0.01
    0.007004201 = product of:
      0.017510502 = sum of:
        0.010812371 = weight(_text_:a in 4150) [ClassicSimilarity], result of:
          0.010812371 = score(doc=4150,freq=14.0), product of:
            0.053464882 = queryWeight, product of:
              1.153047 = idf(docFreq=37942, maxDocs=44218)
              0.046368346 = queryNorm
            0.20223314 = fieldWeight in 4150, product of:
              3.7416575 = tf(freq=14.0), with freq of:
                14.0 = termFreq=14.0
              1.153047 = idf(docFreq=37942, maxDocs=44218)
              0.046875 = fieldNorm(doc=4150)
        0.0066981306 = product of:
          0.013396261 = sum of:
            0.013396261 = weight(_text_:information in 4150) [ClassicSimilarity], result of:
              0.013396261 = score(doc=4150,freq=4.0), product of:
                0.08139861 = queryWeight, product of:
                  1.7554779 = idf(docFreq=20772, maxDocs=44218)
                  0.046368346 = queryNorm
                0.16457605 = fieldWeight in 4150, product of:
                  2.0 = tf(freq=4.0), with freq of:
                    4.0 = termFreq=4.0
                  1.7554779 = idf(docFreq=20772, maxDocs=44218)
                  0.046875 = fieldNorm(doc=4150)
          0.5 = coord(1/2)
      0.4 = coord(2/5)
    
    Abstract
    A recent study begun at Case Western Reserve University and continued at Rutgers University compared the transcripts of 200 DIALOG searches conducted by 36 experienced searchers on real questions submitted by academic and industrial researchers. Relevance judgements by the researchers were used to give recall and precision scores to each search result. Findings included: a low degree of overlap between searches on the same question in selection of search terms or items retrieved; the more often an item was retrieved by different searchers, the more likely it was to be judged relevant; recall and precision were not necessarly inversly related; there was a significant positive impact on recall/precision from using more cycles (a sequence from selecting terms to displaying results); serious uncorrectd errors were a major problem in poor searches and proper selection of terms a key to successful searches.
    Imprint
    Medford, NJ : Learned Information
    Source
    Proceedings of the 50th Annual Meeting of the American Society for Information Science 1987. Ed.: C. Chen
    Type
    a
  9. Saracevic, T.: Indexing, searching, and relevance (1989) 0.00
    0.0047055925 = product of:
      0.011763981 = sum of:
        0.005448922 = weight(_text_:a in 3615) [ClassicSimilarity], result of:
          0.005448922 = score(doc=3615,freq=2.0), product of:
            0.053464882 = queryWeight, product of:
              1.153047 = idf(docFreq=37942, maxDocs=44218)
              0.046368346 = queryNorm
            0.10191591 = fieldWeight in 3615, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              1.153047 = idf(docFreq=37942, maxDocs=44218)
              0.0625 = fieldNorm(doc=3615)
        0.006315058 = product of:
          0.012630116 = sum of:
            0.012630116 = weight(_text_:information in 3615) [ClassicSimilarity], result of:
              0.012630116 = score(doc=3615,freq=2.0), product of:
                0.08139861 = queryWeight, product of:
                  1.7554779 = idf(docFreq=20772, maxDocs=44218)
                  0.046368346 = queryNorm
                0.1551638 = fieldWeight in 3615, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  1.7554779 = idf(docFreq=20772, maxDocs=44218)
                  0.0625 = fieldNorm(doc=3615)
          0.5 = coord(1/2)
      0.4 = coord(2/5)
    
    Footnote
    "As noted by many critics, the present design of online subject access, be it through library catalogs or online retrieval systems, does not accomodate human variability in searching (or indexing). This calls for radically different design principles and inplementations ir order to accomodate the observed patterns, interactions,and differences in human information behavior, of which the overlap findings are one of the important manifestations" (S.107)
    Type
    a
  10. Brenner, E.H.; Saracevic, T.: Indexing and searching in perspective (1985) 0.00
    0.0032814008 = product of:
      0.016407004 = sum of:
        0.016407004 = product of:
          0.032814007 = sum of:
            0.032814007 = weight(_text_:information in 8129) [ClassicSimilarity], result of:
              0.032814007 = score(doc=8129,freq=6.0), product of:
                0.08139861 = queryWeight, product of:
                  1.7554779 = idf(docFreq=20772, maxDocs=44218)
                  0.046368346 = queryNorm
                0.40312737 = fieldWeight in 8129, product of:
                  2.4494898 = tf(freq=6.0), with freq of:
                    6.0 = termFreq=6.0
                  1.7554779 = idf(docFreq=20772, maxDocs=44218)
                  0.09375 = fieldNorm(doc=8129)
          0.5 = coord(1/2)
      0.2 = coord(1/5)
    
    Imprint
    Philadelphia : National Federation of Abstracting and Information Services
    LCSH
    Information retrieval
    Subject
    Information retrieval