Document (#21195)

Author
Stark, T.
Title
¬The Net and Z39.50 : toward a virtual union catalog
Source
Computers in libraries. 17(1997) no.10, S.27-29
Year
1997
Abstract
The State Library of Iowa, USA, received a Higher Education Act title II grant from the US Dept. of Education in 1994 to create a demonstration project of new library information technologies. Describes 2 interlinked components of the project: Web-based union catalogue development and statewide deployment of the ANSI/NISO Z39.50 standard for database search and retrieval. Z39.50 was chosen because of its ability to searching multiple remote databases in a single session and its common interface across a variety of implementations. Use of a distributed Z39.50 search makes the need for maintaining large union catalogues unnecessary
Theme
Internet
Verteilte bibliographische Datenbanken
Object
Z39.50
Location
USA

Similar documents (author)

  1. Stark, R.: ¬The newspaper of the future (1994) 5.94 
    5.9401517 = sum of:
  5.9401517 = weight(author_txt:stark in 701) [ClassicSimilarity], result of:
    5.9401517 = fieldWeight in 701, product of:
      1.0 = tf(freq=1.0), with freq of:
        1.0 = termFreq=1.0
      9.504243 = idf(docFreq=8, maxDocs=44421)
      0.625 = fieldNorm(doc=701)
  2. Stark, B.: Java-Referenz (1996) 5.94 
    5.9401517 = sum of:
  5.9401517 = weight(author_txt:stark in 4539) [ClassicSimilarity], result of:
    5.9401517 = fieldWeight in 4539, product of:
      1.0 = tf(freq=1.0), with freq of:
        1.0 = termFreq=1.0
      9.504243 = idf(docFreq=8, maxDocs=44421)
      0.625 = fieldNorm(doc=4539)
  3. Stark, B.: Programmieren in Java (1996) 5.94 
    5.9401517 = sum of:
  5.9401517 = weight(author_txt:stark in 4540) [ClassicSimilarity], result of:
    5.9401517 = fieldWeight in 4540, product of:
      1.0 = tf(freq=1.0), with freq of:
        1.0 = termFreq=1.0
      9.504243 = idf(docFreq=8, maxDocs=44421)
      0.625 = fieldNorm(doc=4540)
  4. Stark, U. (Bearb.): Bildschirmarbeitsplätze (1991) 4.75 
    4.7521214 = sum of:
  4.7521214 = weight(author_txt:stark in 3823) [ClassicSimilarity], result of:
    4.7521214 = fieldWeight in 3823, product of:
      1.0 = tf(freq=1.0), with freq of:
        1.0 = termFreq=1.0
      9.504243 = idf(docFreq=8, maxDocs=44421)
      0.5 = fieldNorm(doc=3823)
  5. Courtois, M.P.; Baer, W.M.; Stark, M.: Cool tools for searching the Web : a performance evaluation (1995) 3.56 
    3.5640912 = sum of:
  3.5640912 = weight(author_txt:stark in 1894) [ClassicSimilarity], result of:
    3.5640912 = fieldWeight in 1894, product of:
      1.0 = tf(freq=1.0), with freq of:
        1.0 = termFreq=1.0
      9.504243 = idf(docFreq=8, maxDocs=44421)
      0.375 = fieldNorm(doc=1894)

Similar documents (content)

  1. Corey, J.F.: ¬A grant for Z39.50 (1994) 0.32 
    0.31696913 = sum of:
  0.31696913 = product of:
    1.1320326 = sum of:
      0.023891887 = weight(abstract_txt:library in 7705) [ClassicSimilarity], result of:
        0.023891887 = score(doc=7705,freq=4.0), product of:
          0.059937906 = queryWeight, product of:
            1.0930197 = boost
            3.188885 = idf(docFreq=4976, maxDocs=44421)
            0.017196288 = queryNorm
          0.39861062 = fieldWeight in 7705, product of:
            2.0 = tf(freq=4.0), with freq of:
              4.0 = termFreq=4.0
            3.188885 = idf(docFreq=4976, maxDocs=44421)
            0.0625 = fieldNorm(doc=7705)
      0.06667295 = weight(abstract_txt:implementations in 7705) [ClassicSimilarity], result of:
        0.06667295 = score(doc=7705,freq=1.0), product of:
          0.14968482 = queryWeight, product of:
            1.2213808 = boost
            7.1267567 = idf(docFreq=96, maxDocs=44421)
            0.017196288 = queryNorm
          0.4454223 = fieldWeight in 7705, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            7.1267567 = idf(docFreq=96, maxDocs=44421)
            0.0625 = fieldNorm(doc=7705)
      0.11865011 = weight(abstract_txt:grant in 7705) [ClassicSimilarity], result of:
        0.11865011 = score(doc=7705,freq=2.0), product of:
          0.17446704 = queryWeight, product of:
            1.3186178 = boost
            7.694134 = idf(docFreq=54, maxDocs=44421)
            0.017196288 = queryNorm
          0.6800718 = fieldWeight in 7705, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            7.694134 = idf(docFreq=54, maxDocs=44421)
            0.0625 = fieldNorm(doc=7705)
      0.10797805 = weight(abstract_txt:ansi in 7705) [ClassicSimilarity], result of:
        0.10797805 = score(doc=7705,freq=1.0), product of:
          0.20642784 = queryWeight, product of:
            1.434321 = boost
            8.369263 = idf(docFreq=27, maxDocs=44421)
            0.017196288 = queryNorm
          0.5230789 = fieldWeight in 7705, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            8.369263 = idf(docFreq=27, maxDocs=44421)
            0.0625 = fieldNorm(doc=7705)
      0.03094657 = weight(abstract_txt:project in 7705) [ClassicSimilarity], result of:
        0.03094657 = score(doc=7705,freq=1.0), product of:
          0.1130567 = queryWeight, product of:
            1.5011544 = boost
            4.3796177 = idf(docFreq=1512, maxDocs=44421)
            0.017196288 = queryNorm
          0.2737261 = fieldWeight in 7705, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            4.3796177 = idf(docFreq=1512, maxDocs=44421)
            0.0625 = fieldNorm(doc=7705)
      0.13398254 = weight(abstract_txt:dept in 7705) [ClassicSimilarity], result of:
        0.13398254 = score(doc=7705,freq=1.0), product of:
          0.23836552 = queryWeight, product of:
            1.5412885 = boost
            8.993418 = idf(docFreq=14, maxDocs=44421)
            0.017196288 = queryNorm
          0.5620886 = fieldWeight in 7705, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            8.993418 = idf(docFreq=14, maxDocs=44421)
            0.0625 = fieldNorm(doc=7705)
      0.64991057 = weight(abstract_txt:z39.50 in 7705) [ClassicSimilarity], result of:
        0.64991057 = score(doc=7705,freq=8.0), product of:
          0.5421303 = queryWeight, product of:
            4.648834 = boost
            6.7814865 = idf(docFreq=136, maxDocs=44421)
            0.017196288 = queryNorm
          1.1988088 = fieldWeight in 7705, product of:
            2.828427 = tf(freq=8.0), with freq of:
              8.0 = termFreq=8.0
            6.7814865 = idf(docFreq=136, maxDocs=44421)
            0.0625 = fieldNorm(doc=7705)
    0.28 = coord(7/25)
  2. Lunau, C.D.; Turner, F.: vCuc pilot project : status report and preliminary identification (1997) 0.24 
    0.23682061 = sum of:
  0.23682061 = product of:
    1.184103 = sum of:
      0.10350024 = weight(abstract_txt:virtual in 1133) [ClassicSimilarity], result of:
        0.10350024 = score(doc=1133,freq=2.0), product of:
          0.10034034 = queryWeight, product of:
            5.8349996 = idf(docFreq=352, maxDocs=44421)
            0.017196288 = queryNorm
          1.0314919 = fieldWeight in 1133, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            5.8349996 = idf(docFreq=352, maxDocs=44421)
            0.125 = fieldNorm(doc=1133)
      0.033788227 = weight(abstract_txt:library in 1133) [ClassicSimilarity], result of:
        0.033788227 = score(doc=1133,freq=2.0), product of:
          0.059937906 = queryWeight, product of:
            1.0930197 = boost
            3.188885 = idf(docFreq=4976, maxDocs=44421)
            0.017196288 = queryNorm
          0.5637205 = fieldWeight in 1133, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            3.188885 = idf(docFreq=4976, maxDocs=44421)
            0.125 = fieldNorm(doc=1133)
      0.087530114 = weight(abstract_txt:project in 1133) [ClassicSimilarity], result of:
        0.087530114 = score(doc=1133,freq=2.0), product of:
          0.1130567 = queryWeight, product of:
            1.5011544 = boost
            4.3796177 = idf(docFreq=1512, maxDocs=44421)
            0.017196288 = queryNorm
          0.7742143 = fieldWeight in 1133, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            4.3796177 = idf(docFreq=1512, maxDocs=44421)
            0.125 = fieldNorm(doc=1133)
      0.4997283 = weight(abstract_txt:union in 1133) [ClassicSimilarity], result of:
        0.4997283 = score(doc=1133,freq=4.0), product of:
          0.32812124 = queryWeight, product of:
            3.1321318 = boost
            6.0919957 = idf(docFreq=272, maxDocs=44421)
            0.017196288 = queryNorm
          1.5229989 = fieldWeight in 1133, product of:
            2.0 = tf(freq=4.0), with freq of:
              4.0 = termFreq=4.0
            6.0919957 = idf(docFreq=272, maxDocs=44421)
            0.125 = fieldNorm(doc=1133)
      0.45955616 = weight(abstract_txt:z39.50 in 1133) [ClassicSimilarity], result of:
        0.45955616 = score(doc=1133,freq=1.0), product of:
          0.5421303 = queryWeight, product of:
            4.648834 = boost
            6.7814865 = idf(docFreq=136, maxDocs=44421)
            0.017196288 = queryNorm
          0.8476858 = fieldWeight in 1133, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            6.7814865 = idf(docFreq=136, maxDocs=44421)
            0.125 = fieldNorm(doc=1133)
    0.2 = coord(5/25)
  3. Smith, N.: Z39.50 and the OPAC Network in Europe (ONE) Project (1996) 0.19 
    0.1855181 = sum of:
  0.1855181 = product of:
    0.9275905 = sum of:
      0.03583783 = weight(abstract_txt:library in 4195) [ClassicSimilarity], result of:
        0.03583783 = score(doc=4195,freq=4.0), product of:
          0.059937906 = queryWeight, product of:
            1.0930197 = boost
            3.188885 = idf(docFreq=4976, maxDocs=44421)
            0.017196288 = queryNorm
          0.59791595 = fieldWeight in 4195, product of:
            2.0 = tf(freq=4.0), with freq of:
              4.0 = termFreq=4.0
            3.188885 = idf(docFreq=4976, maxDocs=44421)
            0.09375 = fieldNorm(doc=4195)
      0.026972054 = weight(abstract_txt:search in 4195) [ClassicSimilarity], result of:
        0.026972054 = score(doc=4195,freq=1.0), product of:
          0.078723274 = queryWeight, product of:
            1.2526473 = boost
            3.654598 = idf(docFreq=3123, maxDocs=44421)
            0.017196288 = queryNorm
          0.34261855 = fieldWeight in 4195, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            3.654598 = idf(docFreq=3123, maxDocs=44421)
            0.09375 = fieldNorm(doc=4195)
      0.08040154 = weight(abstract_txt:project in 4195) [ClassicSimilarity], result of:
        0.08040154 = score(doc=4195,freq=3.0), product of:
          0.1130567 = queryWeight, product of:
            1.5011544 = boost
            4.3796177 = idf(docFreq=1512, maxDocs=44421)
            0.017196288 = queryNorm
          0.71116126 = fieldWeight in 4195, product of:
            1.7320508 = tf(freq=3.0), with freq of:
              3.0 = termFreq=3.0
            4.3796177 = idf(docFreq=1512, maxDocs=44421)
            0.09375 = fieldNorm(doc=4195)
      0.18739812 = weight(abstract_txt:union in 4195) [ClassicSimilarity], result of:
        0.18739812 = score(doc=4195,freq=1.0), product of:
          0.32812124 = queryWeight, product of:
            3.1321318 = boost
            6.0919957 = idf(docFreq=272, maxDocs=44421)
            0.017196288 = queryNorm
          0.5711246 = fieldWeight in 4195, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            6.0919957 = idf(docFreq=272, maxDocs=44421)
            0.09375 = fieldNorm(doc=4195)
      0.5969809 = weight(abstract_txt:z39.50 in 4195) [ClassicSimilarity], result of:
        0.5969809 = score(doc=4195,freq=3.0), product of:
          0.5421303 = queryWeight, product of:
            4.648834 = boost
            6.7814865 = idf(docFreq=136, maxDocs=44421)
            0.017196288 = queryNorm
          1.1011761 = fieldWeight in 4195, product of:
            1.7320508 = tf(freq=3.0), with freq of:
              3.0 = termFreq=3.0
            6.7814865 = idf(docFreq=136, maxDocs=44421)
            0.09375 = fieldNorm(doc=4195)
    0.2 = coord(5/25)
  4. Phillips, G.L.: Z39.50 and the scholar's concept (1992) 0.18 
    0.1783371 = sum of:
  0.1783371 = product of:
    1.1146069 = sum of:
      0.023891887 = weight(abstract_txt:library in 4052) [ClassicSimilarity], result of:
        0.023891887 = score(doc=4052,freq=1.0), product of:
          0.059937906 = queryWeight, product of:
            1.0930197 = boost
            3.188885 = idf(docFreq=4976, maxDocs=44421)
            0.017196288 = queryNorm
          0.39861062 = fieldWeight in 4052, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            3.188885 = idf(docFreq=4976, maxDocs=44421)
            0.125 = fieldNorm(doc=4052)
      0.2159561 = weight(abstract_txt:ansi in 4052) [ClassicSimilarity], result of:
        0.2159561 = score(doc=4052,freq=1.0), product of:
          0.20642784 = queryWeight, product of:
            1.434321 = boost
            8.369263 = idf(docFreq=27, maxDocs=44421)
            0.017196288 = queryNorm
          1.0461578 = fieldWeight in 4052, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            8.369263 = idf(docFreq=27, maxDocs=44421)
            0.125 = fieldNorm(doc=4052)
      0.2248483 = weight(abstract_txt:niso in 4052) [ClassicSimilarity], result of:
        0.2248483 = score(doc=4052,freq=1.0), product of:
          0.21205623 = queryWeight, product of:
            1.4537433 = boost
            8.482592 = idf(docFreq=24, maxDocs=44421)
            0.017196288 = queryNorm
          1.060324 = fieldWeight in 4052, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            8.482592 = idf(docFreq=24, maxDocs=44421)
            0.125 = fieldNorm(doc=4052)
      0.64991057 = weight(abstract_txt:z39.50 in 4052) [ClassicSimilarity], result of:
        0.64991057 = score(doc=4052,freq=2.0), product of:
          0.5421303 = queryWeight, product of:
            4.648834 = boost
            6.7814865 = idf(docFreq=136, maxDocs=44421)
            0.017196288 = queryNorm
          1.1988088 = fieldWeight in 4052, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            6.7814865 = idf(docFreq=136, maxDocs=44421)
            0.125 = fieldNorm(doc=4052)
    0.16 = coord(4/25)
  5. Cousins, S.; Sanders, A.: Incorporating a virtual union catalogue into the wider information environment through the application of middleware: Interoperability issues in cross-database access (2006) 0.16 
    0.1607811 = sum of:
  0.1607811 = product of:
    0.8039055 = sum of:
      0.096056275 = weight(abstract_txt:virtual in 591) [ClassicSimilarity], result of:
        0.096056275 = score(doc=591,freq=9.0), product of:
          0.10034034 = queryWeight, product of:
            5.8349996 = idf(docFreq=352, maxDocs=44421)
            0.017196288 = queryNorm
          0.95730466 = fieldWeight in 591, product of:
            3.0 = tf(freq=9.0), with freq of:
              9.0 = termFreq=9.0
            5.8349996 = idf(docFreq=352, maxDocs=44421)
            0.0546875 = fieldNorm(doc=591)
      0.02225081 = weight(abstract_txt:search in 591) [ClassicSimilarity], result of:
        0.02225081 = score(doc=591,freq=2.0), product of:
          0.078723274 = queryWeight, product of:
            1.2526473 = boost
            3.654598 = idf(docFreq=3123, maxDocs=44421)
            0.017196288 = queryNorm
          0.2826459 = fieldWeight in 591, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            3.654598 = idf(docFreq=3123, maxDocs=44421)
            0.0546875 = fieldNorm(doc=591)
      0.06959211 = weight(abstract_txt:demonstration in 591) [ClassicSimilarity], result of:
        0.06959211 = score(doc=591,freq=1.0), product of:
          0.16836272 = queryWeight, product of:
            1.2953442 = boost
            7.558333 = idf(docFreq=62, maxDocs=44421)
            0.017196288 = queryNorm
          0.41334632 = fieldWeight in 591, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            7.558333 = idf(docFreq=62, maxDocs=44421)
            0.0546875 = fieldNorm(doc=591)
      0.26776737 = weight(abstract_txt:union in 591) [ClassicSimilarity], result of:
        0.26776737 = score(doc=591,freq=6.0), product of:
          0.32812124 = queryWeight, product of:
            3.1321318 = boost
            6.0919957 = idf(docFreq=272, maxDocs=44421)
            0.017196288 = queryNorm
          0.8160623 = fieldWeight in 591, product of:
            2.4494898 = tf(freq=6.0), with freq of:
              6.0 = termFreq=6.0
            6.0919957 = idf(docFreq=272, maxDocs=44421)
            0.0546875 = fieldNorm(doc=591)
      0.3482389 = weight(abstract_txt:z39.50 in 591) [ClassicSimilarity], result of:
        0.3482389 = score(doc=591,freq=3.0), product of:
          0.5421303 = queryWeight, product of:
            4.648834 = boost
            6.7814865 = idf(docFreq=136, maxDocs=44421)
            0.017196288 = queryNorm
          0.64235276 = fieldWeight in 591, product of:
            1.7320508 = tf(freq=3.0), with freq of:
              3.0 = termFreq=3.0
            6.7814865 = idf(docFreq=136, maxDocs=44421)
            0.0546875 = fieldNorm(doc=591)
    0.2 = coord(5/25)