Search (67 results, page 1 of 4)

  • × theme_ss:"Volltextretrieval"
  • × language_ss:"e"
  1. Dubois, C.P.R.: Free text vs. controlled vocabulary; a reassessment (1987) 0.02
    0.021643426 = product of:
      0.101002656 = sum of:
        0.051419973 = weight(_text_:wide in 2048) [ClassicSimilarity], result of:
          0.051419973 = score(doc=2048,freq=2.0), product of:
            0.1312982 = queryWeight, product of:
              4.4307585 = idf(docFreq=1430, maxDocs=44218)
              0.029633347 = queryNorm
            0.3916274 = fieldWeight in 2048, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              4.4307585 = idf(docFreq=1430, maxDocs=44218)
              0.0625 = fieldNorm(doc=2048)
        0.008071727 = weight(_text_:information in 2048) [ClassicSimilarity], result of:
          0.008071727 = score(doc=2048,freq=2.0), product of:
            0.052020688 = queryWeight, product of:
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.029633347 = queryNorm
            0.1551638 = fieldWeight in 2048, 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=2048)
        0.041510954 = weight(_text_:retrieval in 2048) [ClassicSimilarity], result of:
          0.041510954 = score(doc=2048,freq=6.0), product of:
            0.08963835 = queryWeight, product of:
              3.024915 = idf(docFreq=5836, maxDocs=44218)
              0.029633347 = queryNorm
            0.46309367 = fieldWeight in 2048, product of:
              2.4494898 = tf(freq=6.0), with freq of:
                6.0 = termFreq=6.0
              3.024915 = idf(docFreq=5836, maxDocs=44218)
              0.0625 = fieldNorm(doc=2048)
      0.21428572 = coord(3/14)
    
    Abstract
    Free text and controlled vocabulary searching can no longer be viewed as antagonistic techniques in information retrieval since they both display advantages and weaknesses dependent on a fairly wide range of context, with the option to use both increasingly favoured. An attempt is made to present a list of features associated with the two techniques and to suggest a methodology to assist in deciding on the optimal retrieval technique for a particular purpose. The relevance of the techniques in expert systems and full text contexts is also discussed. Finally, recommendations for further research are suggested, concentrating on survey techniques in real-life retrieval situations
  2. White, F.: ISYS 3.01 : a review (1993) 0.02
    0.01788387 = product of:
      0.08345806 = sum of:
        0.051419973 = weight(_text_:wide in 2052) [ClassicSimilarity], result of:
          0.051419973 = score(doc=2052,freq=2.0), product of:
            0.1312982 = queryWeight, product of:
              4.4307585 = idf(docFreq=1430, maxDocs=44218)
              0.029633347 = queryNorm
            0.3916274 = fieldWeight in 2052, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              4.4307585 = idf(docFreq=1430, maxDocs=44218)
              0.0625 = fieldNorm(doc=2052)
        0.008071727 = weight(_text_:information in 2052) [ClassicSimilarity], result of:
          0.008071727 = score(doc=2052,freq=2.0), product of:
            0.052020688 = queryWeight, product of:
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.029633347 = queryNorm
            0.1551638 = fieldWeight in 2052, 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=2052)
        0.023966359 = weight(_text_:retrieval in 2052) [ClassicSimilarity], result of:
          0.023966359 = score(doc=2052,freq=2.0), product of:
            0.08963835 = queryWeight, product of:
              3.024915 = idf(docFreq=5836, maxDocs=44218)
              0.029633347 = queryNorm
            0.26736724 = fieldWeight in 2052, 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=2052)
      0.21428572 = coord(3/14)
    
    Abstract
    Reviews ISYS, a full text retrieval system from Odyssey developments. ISYS supports a wide variety of wordprocessor, text and spreadsheet formats. A programming interface is included for developers to integrate ISYS into their own applications. Describes how to use ISYS to create a database index for a set of documents and then query that index to locate, retrieve and display information from the indexed documents. Discusses configuration options, precedence of operators, displaying and manipulating search results, the advanced menu, ease of learning and use, documentation and library applications
  3. Laegreid, J.A.: SIFT: a Norwegian information retrieval system (1993) 0.01
    0.014185291 = product of:
      0.06619802 = sum of:
        0.013980643 = weight(_text_:information in 7701) [ClassicSimilarity], result of:
          0.013980643 = score(doc=7701,freq=6.0), product of:
            0.052020688 = queryWeight, product of:
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.029633347 = queryNorm
            0.2687516 = fieldWeight in 7701, product of:
              2.4494898 = tf(freq=6.0), with freq of:
                6.0 = termFreq=6.0
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.0625 = fieldNorm(doc=7701)
        0.041510954 = weight(_text_:retrieval in 7701) [ClassicSimilarity], result of:
          0.041510954 = score(doc=7701,freq=6.0), product of:
            0.08963835 = queryWeight, product of:
              3.024915 = idf(docFreq=5836, maxDocs=44218)
              0.029633347 = queryNorm
            0.46309367 = fieldWeight in 7701, product of:
              2.4494898 = tf(freq=6.0), with freq of:
                6.0 = termFreq=6.0
              3.024915 = idf(docFreq=5836, maxDocs=44218)
              0.0625 = fieldNorm(doc=7701)
        0.010706427 = product of:
          0.032119278 = sum of:
            0.032119278 = weight(_text_:22 in 7701) [ClassicSimilarity], result of:
              0.032119278 = score(doc=7701,freq=2.0), product of:
                0.103770934 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.029633347 = queryNorm
                0.30952093 = fieldWeight in 7701, 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=7701)
          0.33333334 = coord(1/3)
      0.21428572 = coord(3/14)
    
    Abstract
    Describes SIFT (Search in Free Text) an information retrieval system originally developed for administering governmental documents in Norway but which is now being applied alsewhere. SIFT handles structured information well. A library system, SIFT-BIBL, is now available. SIFT's retrieval engine and search facilities are powerful. Its user interface is limited but being imporved. An application programmer interface has been released which will allow programmers to develop their own interface. A Windows-based- client-server version is now being beta tested
    Date
    23. 1.1999 19:22:09
  4. Full-text retrieval (1996) 0.01
    0.0113271745 = product of:
      0.07929022 = sum of:
        0.019976506 = weight(_text_:information in 3320) [ClassicSimilarity], result of:
          0.019976506 = score(doc=3320,freq=4.0), product of:
            0.052020688 = queryWeight, product of:
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.029633347 = queryNorm
            0.3840108 = fieldWeight in 3320, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.109375 = fieldNorm(doc=3320)
        0.05931371 = weight(_text_:retrieval in 3320) [ClassicSimilarity], result of:
          0.05931371 = score(doc=3320,freq=4.0), product of:
            0.08963835 = queryWeight, product of:
              3.024915 = idf(docFreq=5836, maxDocs=44218)
              0.029633347 = queryNorm
            0.6617001 = fieldWeight in 3320, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              3.024915 = idf(docFreq=5836, maxDocs=44218)
              0.109375 = fieldNorm(doc=3320)
      0.14285715 = coord(2/14)
    
    Abstract
    A special section devoted to full text information retrieval
    Source
    Journal of the American Society for Information Science. 47(1996) no.4, S.261-330
  5. Salton, G.: Another look at automatic text-retrieval systems (1986) 0.01
    0.011011096 = product of:
      0.077077664 = sum of:
        0.010089659 = weight(_text_:information in 1356) [ClassicSimilarity], result of:
          0.010089659 = score(doc=1356,freq=2.0), product of:
            0.052020688 = queryWeight, product of:
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.029633347 = queryNorm
            0.19395474 = fieldWeight in 1356, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.078125 = fieldNorm(doc=1356)
        0.066988006 = weight(_text_:retrieval in 1356) [ClassicSimilarity], result of:
          0.066988006 = score(doc=1356,freq=10.0), product of:
            0.08963835 = queryWeight, product of:
              3.024915 = idf(docFreq=5836, maxDocs=44218)
              0.029633347 = queryNorm
            0.74731416 = fieldWeight in 1356, product of:
              3.1622777 = tf(freq=10.0), with freq of:
                10.0 = termFreq=10.0
              3.024915 = idf(docFreq=5836, maxDocs=44218)
              0.078125 = fieldNorm(doc=1356)
      0.14285715 = coord(2/14)
    
    Footnote
    Bezugnahme auf: Blair, D.C.: An evaluation of retrieval effectiveness for a full-text document-retrieval system. Comm. ACM 28(1985) S.280-299. - Vgl. auch: Blair, D.C.: Full text retrieval ... Int. Class. 13(1986) S.18-23; Blair, D.C., M.E. Maron: full-text information retrieval ... Inf. Proc. Man. 26(1990) S.437-447.
  6. Blair, D.C.; Maron, M.E.: ¬An evaluation of retrieval effectiveness for a full-text document-retrieval system (1985) 0.01
    0.010000794 = product of:
      0.07000556 = sum of:
        0.010089659 = weight(_text_:information in 1345) [ClassicSimilarity], result of:
          0.010089659 = score(doc=1345,freq=2.0), product of:
            0.052020688 = queryWeight, product of:
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.029633347 = queryNorm
            0.19395474 = fieldWeight in 1345, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.078125 = fieldNorm(doc=1345)
        0.059915897 = weight(_text_:retrieval in 1345) [ClassicSimilarity], result of:
          0.059915897 = score(doc=1345,freq=8.0), product of:
            0.08963835 = queryWeight, product of:
              3.024915 = idf(docFreq=5836, maxDocs=44218)
              0.029633347 = queryNorm
            0.6684181 = fieldWeight in 1345, product of:
              2.828427 = tf(freq=8.0), with freq of:
                8.0 = termFreq=8.0
              3.024915 = idf(docFreq=5836, maxDocs=44218)
              0.078125 = fieldNorm(doc=1345)
      0.14285715 = coord(2/14)
    
    Footnote
    Vgl. auch : Salton, G.: Another look ... Comm. ACM 29(1986) S.S.648-656; Blair, D.C.: Full text retrieval ... Int. Class. 13(1986) S.18-23: Blair, D.C., M.E. Maron: Full-text information retrieval ... Inf. proc. man. 26(1990) S.437-447.
  7. Casale, M.: Full text retrieval for the Web (1996) 0.01
    0.009168101 = product of:
      0.0641767 = sum of:
        0.034519844 = weight(_text_:web in 6757) [ClassicSimilarity], result of:
          0.034519844 = score(doc=6757,freq=4.0), product of:
            0.09670874 = queryWeight, product of:
              3.2635105 = idf(docFreq=4597, maxDocs=44218)
              0.029633347 = queryNorm
            0.35694647 = fieldWeight in 6757, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              3.2635105 = idf(docFreq=4597, maxDocs=44218)
              0.0546875 = fieldNorm(doc=6757)
        0.029656855 = weight(_text_:retrieval in 6757) [ClassicSimilarity], result of:
          0.029656855 = score(doc=6757,freq=4.0), product of:
            0.08963835 = queryWeight, product of:
              3.024915 = idf(docFreq=5836, maxDocs=44218)
              0.029633347 = queryNorm
            0.33085006 = fieldWeight in 6757, 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=6757)
      0.14285715 = coord(2/14)
    
    Abstract
    Reviews developments and improvements in techniques for searching the WWW that have been made access to full text databases a practical proposition (full text retrieval (FTR)). Reports results of interviews with 8 full text database vendors offering FTR via the WWW: Dataware (http://www.dataware.com); Excalibur (http://www.excalib.com); Fulcrum (http://www.fulcrum.com); Muscat (http://www.muscat.co.uk); Open Text (http://www.opentext.com); Personal Library Software (PLS) (http://www.pls.com); Verity (http://www.verity.com); and ZyLab (ZyIndex and ZyImage) (http://www.zylab.com). Compares the prices of the systems and lists the questions that publishers should ask before making a choice of systems for handling FTR on the Web
  8. Frederick, S.C.: SIRE: full-text retrieval with augmented search (1985) 0.01
    0.009153739 = product of:
      0.06407617 = sum of:
        0.016143454 = weight(_text_:information in 482) [ClassicSimilarity], result of:
          0.016143454 = score(doc=482,freq=2.0), product of:
            0.052020688 = queryWeight, product of:
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.029633347 = queryNorm
            0.3103276 = fieldWeight in 482, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.125 = fieldNorm(doc=482)
        0.047932718 = weight(_text_:retrieval in 482) [ClassicSimilarity], result of:
          0.047932718 = score(doc=482,freq=2.0), product of:
            0.08963835 = queryWeight, product of:
              3.024915 = idf(docFreq=5836, maxDocs=44218)
              0.029633347 = queryNorm
            0.5347345 = fieldWeight in 482, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.024915 = idf(docFreq=5836, maxDocs=44218)
              0.125 = fieldNorm(doc=482)
      0.14285715 = coord(2/14)
    
    Source
    Information today. 2(1985), S.7-25
  9. Tauchert, W.; Hospodarsky, J.; Krause, J.; Schneider, C.; Womser-Hacker, C.: Effects of linguistic functions on information retrieval in a German language full-text database : comparison between retrieval in abstract and full text (1991) 0.01
    0.008992559 = product of:
      0.062947914 = sum of:
        0.012107591 = weight(_text_:information in 465) [ClassicSimilarity], result of:
          0.012107591 = score(doc=465,freq=2.0), product of:
            0.052020688 = queryWeight, product of:
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.029633347 = queryNorm
            0.23274569 = fieldWeight in 465, 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=465)
        0.050840326 = weight(_text_:retrieval in 465) [ClassicSimilarity], result of:
          0.050840326 = score(doc=465,freq=4.0), product of:
            0.08963835 = queryWeight, product of:
              3.024915 = idf(docFreq=5836, maxDocs=44218)
              0.029633347 = queryNorm
            0.5671716 = fieldWeight in 465, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              3.024915 = idf(docFreq=5836, maxDocs=44218)
              0.09375 = fieldNorm(doc=465)
      0.14285715 = coord(2/14)
    
  10. Ro, J.S.: ¬An evaluation of the applicability of ranking algorithms to improve the effectiveness of full-text retrieval : 1. On the effectiveness of full-text retrieval (1988) 0.01
    0.008992559 = product of:
      0.062947914 = sum of:
        0.012107591 = weight(_text_:information in 4030) [ClassicSimilarity], result of:
          0.012107591 = score(doc=4030,freq=2.0), product of:
            0.052020688 = queryWeight, product of:
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.029633347 = queryNorm
            0.23274569 = fieldWeight in 4030, 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=4030)
        0.050840326 = weight(_text_:retrieval in 4030) [ClassicSimilarity], result of:
          0.050840326 = score(doc=4030,freq=4.0), product of:
            0.08963835 = queryWeight, product of:
              3.024915 = idf(docFreq=5836, maxDocs=44218)
              0.029633347 = queryNorm
            0.5671716 = fieldWeight in 4030, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              3.024915 = idf(docFreq=5836, maxDocs=44218)
              0.09375 = fieldNorm(doc=4030)
      0.14285715 = coord(2/14)
    
    Source
    Journal of the American Society for Information Science. 39(1988), S.73-78
  11. Ashford, J.H.; Matkin, D.I.: Studies in the application of free text package systems for information storage and retrieval in libraries and related information centres (1982) 0.01
    0.008845377 = product of:
      0.061917633 = sum of:
        0.019976506 = weight(_text_:information in 1351) [ClassicSimilarity], result of:
          0.019976506 = score(doc=1351,freq=4.0), product of:
            0.052020688 = queryWeight, product of:
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.029633347 = queryNorm
            0.3840108 = fieldWeight in 1351, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.109375 = fieldNorm(doc=1351)
        0.04194113 = weight(_text_:retrieval in 1351) [ClassicSimilarity], result of:
          0.04194113 = score(doc=1351,freq=2.0), product of:
            0.08963835 = queryWeight, product of:
              3.024915 = idf(docFreq=5836, maxDocs=44218)
              0.029633347 = queryNorm
            0.46789268 = fieldWeight in 1351, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.024915 = idf(docFreq=5836, maxDocs=44218)
              0.109375 = fieldNorm(doc=1351)
      0.14285715 = coord(2/14)
    
  12. Sievert, M.E.C.: Full-text information retrieval : an introduction (1996) 0.01
    0.008845377 = product of:
      0.061917633 = sum of:
        0.019976506 = weight(_text_:information in 4206) [ClassicSimilarity], result of:
          0.019976506 = score(doc=4206,freq=4.0), product of:
            0.052020688 = queryWeight, product of:
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.029633347 = queryNorm
            0.3840108 = fieldWeight in 4206, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.109375 = fieldNorm(doc=4206)
        0.04194113 = weight(_text_:retrieval in 4206) [ClassicSimilarity], result of:
          0.04194113 = score(doc=4206,freq=2.0), product of:
            0.08963835 = queryWeight, product of:
              3.024915 = idf(docFreq=5836, maxDocs=44218)
              0.029633347 = queryNorm
            0.46789268 = fieldWeight in 4206, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.024915 = idf(docFreq=5836, maxDocs=44218)
              0.109375 = fieldNorm(doc=4206)
      0.14285715 = coord(2/14)
    
    Source
    Journal of the American Society for Information Science. 47(1996) no.4, S.261-262
  13. Sievert, M.C.: Full-text information retrieval : introduction (1996) 0.01
    0.008548964 = product of:
      0.059842743 = sum of:
        0.017475804 = weight(_text_:information in 4719) [ClassicSimilarity], result of:
          0.017475804 = score(doc=4719,freq=6.0), product of:
            0.052020688 = queryWeight, product of:
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.029633347 = queryNorm
            0.3359395 = fieldWeight in 4719, 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=4719)
        0.042366937 = weight(_text_:retrieval in 4719) [ClassicSimilarity], result of:
          0.042366937 = score(doc=4719,freq=4.0), product of:
            0.08963835 = queryWeight, product of:
              3.024915 = idf(docFreq=5836, maxDocs=44218)
              0.029633347 = queryNorm
            0.47264296 = fieldWeight in 4719, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              3.024915 = idf(docFreq=5836, maxDocs=44218)
              0.078125 = fieldNorm(doc=4719)
      0.14285715 = coord(2/14)
    
    Abstract
    Introduces a special section devoted to full text information retrieval. Gives an overview of full text databases and research into them. There is a lack of a single definition of full text. Articles in the library related literature about full text have appeared with increasing frequnecy
    Source
    Journal of the American Society for Information Science. 47(1996) no.4, S.261-262
  14. Sievert, M.E.; McKinin, E.J.: Why full-text misses some relevant documents : an analysis of documents not retrieved by CCML or MEDIS (1989) 0.01
    0.008166895 = product of:
      0.03811218 = sum of:
        0.012107591 = weight(_text_:information in 3564) [ClassicSimilarity], result of:
          0.012107591 = score(doc=3564,freq=8.0), product of:
            0.052020688 = queryWeight, product of:
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.029633347 = queryNorm
            0.23274569 = fieldWeight in 3564, 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=3564)
        0.01797477 = weight(_text_:retrieval in 3564) [ClassicSimilarity], result of:
          0.01797477 = score(doc=3564,freq=2.0), product of:
            0.08963835 = queryWeight, product of:
              3.024915 = idf(docFreq=5836, maxDocs=44218)
              0.029633347 = queryNorm
            0.20052543 = fieldWeight in 3564, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.024915 = idf(docFreq=5836, maxDocs=44218)
              0.046875 = fieldNorm(doc=3564)
        0.008029819 = product of:
          0.024089456 = sum of:
            0.024089456 = weight(_text_:22 in 3564) [ClassicSimilarity], result of:
              0.024089456 = score(doc=3564,freq=2.0), product of:
                0.103770934 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.029633347 = queryNorm
                0.23214069 = fieldWeight in 3564, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.046875 = fieldNorm(doc=3564)
          0.33333334 = coord(1/3)
      0.21428572 = coord(3/14)
    
    Abstract
    Searches conducted as part of the MEDLINE/Full-Text Research Project revealed that the full-text data bases of clinical medical journal articles (CCML (Comprehensive Core Medical Library) from BRS Information Technologies, and MEDIS from Mead Data Central) did not retrieve all the relevant citations. An analysis of the data indicated that 204 relevant citations were retrieved only by MEDLINE. A comparison of the strategies used on the full-text data bases with the text of the articles of these 204 citations revealed that 2 reasons contributed to these failure. The searcher often constructed a restrictive strategy which resulted in the loss of relevant documents; and as in other kinds of retrieval, the problems of natural language caused the loss of relevant documents.
    Date
    9. 1.1996 10:22:31
    Imprint
    Medford, New Jersey : Learned Information
    Source
    ASIS'89. Managing information and technology. Proceedings of the 52nd annual meeting of the American Society for Information Science, Washington D.C., 30.10.-2.11.1989. Vol.26. Ed.by J. Katzer and G.B. Newby
  15. Bernstein, L.M.; Williamson, R.E.: Testing of a natural language retrieval system for a full text knowledge base (1984) 0.01
    0.008009522 = product of:
      0.05606665 = sum of:
        0.014125523 = weight(_text_:information in 1803) [ClassicSimilarity], result of:
          0.014125523 = score(doc=1803,freq=2.0), product of:
            0.052020688 = queryWeight, product of:
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.029633347 = queryNorm
            0.27153665 = fieldWeight in 1803, 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=1803)
        0.04194113 = weight(_text_:retrieval in 1803) [ClassicSimilarity], result of:
          0.04194113 = score(doc=1803,freq=2.0), product of:
            0.08963835 = queryWeight, product of:
              3.024915 = idf(docFreq=5836, maxDocs=44218)
              0.029633347 = queryNorm
            0.46789268 = fieldWeight in 1803, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.024915 = idf(docFreq=5836, maxDocs=44218)
              0.109375 = fieldNorm(doc=1803)
      0.14285715 = coord(2/14)
    
    Source
    Journal of the American Society for Information Science. 35(1984), S.235-247
  16. Warner, A.J.: ¬The role of linguistic analysis in full-text retrieval (1994) 0.01
    0.008009522 = product of:
      0.05606665 = sum of:
        0.014125523 = weight(_text_:information in 2992) [ClassicSimilarity], result of:
          0.014125523 = score(doc=2992,freq=2.0), product of:
            0.052020688 = queryWeight, product of:
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.029633347 = queryNorm
            0.27153665 = fieldWeight in 2992, 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=2992)
        0.04194113 = weight(_text_:retrieval in 2992) [ClassicSimilarity], result of:
          0.04194113 = score(doc=2992,freq=2.0), product of:
            0.08963835 = queryWeight, product of:
              3.024915 = idf(docFreq=5836, maxDocs=44218)
              0.029633347 = queryNorm
            0.46789268 = fieldWeight in 2992, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.024915 = idf(docFreq=5836, maxDocs=44218)
              0.109375 = fieldNorm(doc=2992)
      0.14285715 = coord(2/14)
    
    Imprint
    Medford, NJ : Learned information
  17. Ashford, J.H.: Full text retrieval in document management : a review (1995) 0.01
    0.008000636 = product of:
      0.056004446 = sum of:
        0.008071727 = weight(_text_:information in 2054) [ClassicSimilarity], result of:
          0.008071727 = score(doc=2054,freq=2.0), product of:
            0.052020688 = queryWeight, product of:
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.029633347 = queryNorm
            0.1551638 = fieldWeight in 2054, 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=2054)
        0.047932718 = weight(_text_:retrieval in 2054) [ClassicSimilarity], result of:
          0.047932718 = score(doc=2054,freq=8.0), product of:
            0.08963835 = queryWeight, product of:
              3.024915 = idf(docFreq=5836, maxDocs=44218)
              0.029633347 = queryNorm
            0.5347345 = fieldWeight in 2054, product of:
              2.828427 = tf(freq=8.0), with freq of:
                8.0 = termFreq=8.0
              3.024915 = idf(docFreq=5836, maxDocs=44218)
              0.0625 = fieldNorm(doc=2054)
      0.14285715 = coord(2/14)
    
    Abstract
    Full text management which applied to document management tends to be centred on text storage and retrieval. Recent developments are concerned with integration with relational database management system products to deliver document management services offering both the flexibility of text retrieval and the ability to support process based funnctions. There has been a move towards client server architectures, more user friendly user interfaces and more flexible and easier to understand retrieval. Advocates caution in choosing tasks for full text methods. Identifies document management functions for which the combined use of database management systems or special purpose tools should be considered
    Source
    Information management and technology. 28(1995) no.1, S.28-32
  18. Sieverts, E.G.; Hofstede, M.; Groeniger, B.O.: Software for information storage and retrieval tested, evaluated and compared : pt.4: indexing and full-text retrieval programs (1992) 0.01
    0.0075129103 = product of:
      0.05259037 = sum of:
        0.00856136 = weight(_text_:information in 2051) [ClassicSimilarity], result of:
          0.00856136 = score(doc=2051,freq=4.0), product of:
            0.052020688 = queryWeight, product of:
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.029633347 = queryNorm
            0.16457605 = fieldWeight in 2051, 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=2051)
        0.044029012 = weight(_text_:retrieval in 2051) [ClassicSimilarity], result of:
          0.044029012 = score(doc=2051,freq=12.0), product of:
            0.08963835 = queryWeight, product of:
              3.024915 = idf(docFreq=5836, maxDocs=44218)
              0.029633347 = queryNorm
            0.49118498 = fieldWeight in 2051, product of:
              3.4641016 = tf(freq=12.0), with freq of:
                12.0 = termFreq=12.0
              3.024915 = idf(docFreq=5836, maxDocs=44218)
              0.046875 = fieldNorm(doc=2051)
      0.14285715 = coord(2/14)
    
    Abstract
    In this article, the fourth in a series on microcomputer software for information storage and retrieval, test results of six indexing and full-text retrieval programs are presented and various properties and qualities of these programs are discussed. The common faeture of programs in these categories is that they are primarily meant to retrieve words (or combination of them) in large text files. To do this they either simply index existing text files in one or more formats (indexing programs), or they store and index them in their own database format (full-text retrieval programs). The programs reviewed in this issue are the indexing programs Ask-it, Texplore and ZYindex and the full-text retrieval programs KAware, textMaster and WordCruncher. All programs run under MS-DOS. In addition ZYindex has a Windows and a Unix version and TextMaster is also available for for Unix. For each of the six programs almost 100 facts and test results are tabulated. The programs are also discussed individually
  19. Muddamalle, M.R.: Natural language versus controlled vocabulary in information retrieval : a case study in soil mechanics (1998) 0.01
    0.0074237683 = product of:
      0.051966377 = sum of:
        0.016016837 = weight(_text_:information in 1795) [ClassicSimilarity], result of:
          0.016016837 = score(doc=1795,freq=14.0), product of:
            0.052020688 = queryWeight, product of:
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.029633347 = queryNorm
            0.3078936 = fieldWeight in 1795, product of:
              3.7416575 = tf(freq=14.0), with freq of:
                14.0 = termFreq=14.0
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.046875 = fieldNorm(doc=1795)
        0.03594954 = weight(_text_:retrieval in 1795) [ClassicSimilarity], result of:
          0.03594954 = score(doc=1795,freq=8.0), product of:
            0.08963835 = queryWeight, product of:
              3.024915 = idf(docFreq=5836, maxDocs=44218)
              0.029633347 = queryNorm
            0.40105087 = fieldWeight in 1795, product of:
              2.828427 = tf(freq=8.0), with freq of:
                8.0 = termFreq=8.0
              3.024915 = idf(docFreq=5836, maxDocs=44218)
              0.046875 = fieldNorm(doc=1795)
      0.14285715 = coord(2/14)
    
    Abstract
    The effectiveness ot two information retrieval tools, namely, thesaurus and natural language, in an information retrieval system has been studies. A database SOILSC was created using a HP3000/58 series minicomputer and MINISIS software. Records of articles totalling 17.918 published in various journals, received in the Central Water and Power Research Station (CWPRS) library (Pune, India) since 1988, have been stored. The information needs of a soil mechanics group have been formulated using thesaurus and natural language into 81 search strategies. In consultation with the user, relevance of the retrieved documents was assessed and, recall (R) and precision (P) values were calculated. Since both thesaurus and natural language have shown identical performance in information retrieval, a combination of these two have been suggested for making searches and providing relevant information
    Source
    Journal of the American Society for Information Science. 49(1998) no.10, S.881-887
  20. Blair, D.C.: Full text retrieval : Evaluation and implications (1986) 0.01
    0.006964882 = product of:
      0.04875417 = sum of:
        0.00856136 = weight(_text_:information in 2047) [ClassicSimilarity], result of:
          0.00856136 = score(doc=2047,freq=4.0), product of:
            0.052020688 = queryWeight, product of:
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.029633347 = queryNorm
            0.16457605 = fieldWeight in 2047, 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=2047)
        0.04019281 = weight(_text_:retrieval in 2047) [ClassicSimilarity], result of:
          0.04019281 = score(doc=2047,freq=10.0), product of:
            0.08963835 = queryWeight, product of:
              3.024915 = idf(docFreq=5836, maxDocs=44218)
              0.029633347 = queryNorm
            0.44838852 = fieldWeight in 2047, product of:
              3.1622777 = tf(freq=10.0), with freq of:
                10.0 = termFreq=10.0
              3.024915 = idf(docFreq=5836, maxDocs=44218)
              0.046875 = fieldNorm(doc=2047)
      0.14285715 = coord(2/14)
    
    Abstract
    Recently, a detailed evaluation of a large, operational full-text document retrieval system was reported in the literature. Values of precision and recall were estimated usind traditional statistical sampling methods and blind evaluation procedures. The results of this evaluation demonstrated that the system tested was retrieving less then 20% of the relevant documents when the searchers believed it was retrieving over 75% of the relevant documents. This evaluation is described including some data not reported in the original article. Also discussed are the implications which this study has for how the subjects of documents should be represented, as well as the importance of rigorous retrieval evaluations for the furtherhance of information retrieval research
    Footnote
    Vgl.: Blair, D.C., M.E. Maron: An evaluation ... Comm. ACM 28(1985) S.280-299; Salton, G.: Another look ... Comm. ACM 29(1986) S.648-656; Blair, D.C., M.E. Maron: Full-text information retrieval ... Inf. Proc. Man. 26(1990) S.437-447.

Years

Types

  • a 63
  • m 2
  • s 2
  • More… Less…