Document (#12919)

Author

Buckland, M.K.

Title

Partnerships in navigation : an information retrieval research agenda

Source

Forging new partnerships in information: converging technologies. Proceedings of the 58th Annual Meeting of the American Society for Information Science, ASIS'95, Chicago, IL, 9-12 October 1995. Ed.: T. Kinney

Imprint

Medford, NJ : Learned Information

Year

1995

Pages

S.84-89

Abstract

The transition from searching in a single database to searching a multiplicity of networked databases exacerbates some old difficulties in the design and evaluation of retrieval systems and creates new one. A networked environment calls into question the traditional definitions of recall and relevance. Efficient network searching raises questions about where to look first, where to look next and when to stop searching. The need for 'entry vocabulary' support and the need for support in moving from one system vocabulary to another are increased by the increased use of more different databases. The network environment offers the option of collecting different representations of the same object and merging them into an extended record

Theme

Retrievalstudien

Similar documents (author)

1. Buckland, M.K.: Information as thing (1991) 4.88

   4.878167 = sum of:
     4.878167 = weight(author_txt:buckland in 1113) [ClassicSimilarity], result of:
       4.878167 = fieldWeight in 1113, product of:
         1.0 = tf(freq=1.0), with freq of:
           1.0 = termFreq=1.0
         7.805067 = idf(docFreq=48, maxDocs=44218)
         0.625 = fieldNorm(doc=1113)
   

2. Buckland, M.K.: Agenda for online catalog designers (1992) 4.88

   4.878167 = sum of:
     4.878167 = weight(author_txt:buckland in 1493) [ClassicSimilarity], result of:
       4.878167 = fieldWeight in 1493, product of:
         1.0 = tf(freq=1.0), with freq of:
           1.0 = termFreq=1.0
         7.805067 = idf(docFreq=48, maxDocs=44218)
         0.625 = fieldNorm(doc=1493)
   

3. Buckland, M.K.: Bibliography, library records, and the redefinition of the library catalog (1988) 4.88

   4.878167 = sum of:
     4.878167 = weight(author_txt:buckland in 1494) [ClassicSimilarity], result of:
       4.878167 = fieldWeight in 1494, product of:
         1.0 = tf(freq=1.0), with freq of:
           1.0 = termFreq=1.0
         7.805067 = idf(docFreq=48, maxDocs=44218)
         0.625 = fieldNorm(doc=1494)
   

4. Buckland, M.: Emanuel Goldberg, electronic document retrieval, and Vannevar Bush's Memex (1992) 4.88

   4.878167 = sum of:
     4.878167 = weight(author_txt:buckland in 2340) [ClassicSimilarity], result of:
       4.878167 = fieldWeight in 2340, product of:
         1.0 = tf(freq=1.0), with freq of:
           1.0 = termFreq=1.0
         7.805067 = idf(docFreq=48, maxDocs=44218)
         0.625 = fieldNorm(doc=2340)
   

5. Buckland, M.K.: Combining electronic mail with online retrieval in a library context (1987) 4.88

   4.878167 = sum of:
     4.878167 = weight(author_txt:buckland in 4079) [ClassicSimilarity], result of:
       4.878167 = fieldWeight in 4079, product of:
         1.0 = tf(freq=1.0), with freq of:
           1.0 = termFreq=1.0
         7.805067 = idf(docFreq=48, maxDocs=44218)
         0.625 = fieldNorm(doc=4079)
   

Similar documents (content)

1. Jun, W.: ¬A knowledge network constructed by integrating classification, thesaurus and metadata in a digital library (2003) 0.17

   0.16983004 = sum of:
     0.16983004 = product of:
       0.47175008 = sum of:
         0.024676628 = weight(abstract_txt:retrieval in 1254) [ClassicSimilarity], result of:
           0.024676628 = score(doc=1254,freq=2.0), product of:
             0.09181435 = queryWeight, product of:
               1.039488 = boost
               3.4751394 = idf(docFreq=3720, maxDocs=44218)
               0.025416683 = queryNorm
             0.26876658 = fieldWeight in 1254, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               3.4751394 = idf(docFreq=3720, maxDocs=44218)
               0.0546875 = fieldNorm(doc=1254)
         0.03656379 = weight(abstract_txt:into in 1254) [ClassicSimilarity], result of:
           0.03656379 = score(doc=1254,freq=3.0), product of:
             0.10424544 = queryWeight, product of:
               1.1076249 = boost
               3.7029297 = idf(docFreq=2962, maxDocs=44218)
               0.025416683 = queryNorm
             0.35074717 = fieldWeight in 1254, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               3.7029297 = idf(docFreq=2962, maxDocs=44218)
               0.0546875 = fieldNorm(doc=1254)
         0.034896754 = weight(abstract_txt:support in 1254) [ClassicSimilarity], result of:
           0.034896754 = score(doc=1254,freq=1.0), product of:
             0.14574265 = queryWeight, product of:
               1.3096569 = boost
               4.378348 = idf(docFreq=1507, maxDocs=44218)
               0.025416683 = queryNorm
             0.2394409 = fieldWeight in 1254, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.378348 = idf(docFreq=1507, maxDocs=44218)
               0.0546875 = fieldNorm(doc=1254)
         0.035725884 = weight(abstract_txt:databases in 1254) [ClassicSimilarity], result of:
           0.035725884 = score(doc=1254,freq=1.0), product of:
             0.14804213 = queryWeight, product of:
               1.3199481 = boost
               4.4127526 = idf(docFreq=1456, maxDocs=44218)
               0.025416683 = queryNorm
             0.24132241 = fieldWeight in 1254, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.4127526 = idf(docFreq=1456, maxDocs=44218)
               0.0546875 = fieldNorm(doc=1254)
         0.071180426 = weight(abstract_txt:network in 1254) [ClassicSimilarity], result of:
           0.071180426 = score(doc=1254,freq=3.0), product of:
             0.16252865 = queryWeight, product of:
               1.3830222 = boost
               4.6236176 = idf(docFreq=1179, maxDocs=44218)
               0.025416683 = queryNorm
             0.43795615 = fieldWeight in 1254, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               4.6236176 = idf(docFreq=1179, maxDocs=44218)
               0.0546875 = fieldNorm(doc=1254)
         0.041415114 = weight(abstract_txt:environment in 1254) [ClassicSimilarity], result of:
           0.041415114 = score(doc=1254,freq=1.0), product of:
             0.16336884 = queryWeight, product of:
               1.3865923 = boost
               4.635553 = idf(docFreq=1165, maxDocs=44218)
               0.025416683 = queryNorm
             0.2535068 = fieldWeight in 1254, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.635553 = idf(docFreq=1165, maxDocs=44218)
               0.0546875 = fieldNorm(doc=1254)
         0.063963704 = weight(abstract_txt:vocabulary in 1254) [ClassicSimilarity], result of:
           0.063963704 = score(doc=1254,freq=1.0), product of:
             0.21828258 = queryWeight, product of:
               1.6027793 = boost
               5.358293 = idf(docFreq=565, maxDocs=44218)
               0.025416683 = queryNorm
             0.29303166 = fieldWeight in 1254, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.358293 = idf(docFreq=565, maxDocs=44218)
               0.0546875 = fieldNorm(doc=1254)
         0.09791632 = weight(abstract_txt:networked in 1254) [ClassicSimilarity], result of:
           0.09791632 = score(doc=1254,freq=1.0), product of:
             0.2899346 = queryWeight, product of:
               1.8472012 = boost
               6.1754265 = idf(docFreq=249, maxDocs=44218)
               0.025416683 = queryNorm
             0.33771864 = fieldWeight in 1254, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               6.1754265 = idf(docFreq=249, maxDocs=44218)
               0.0546875 = fieldNorm(doc=1254)
         0.06541143 = weight(abstract_txt:searching in 1254) [ClassicSimilarity], result of:
           0.06541143 = score(doc=1254,freq=1.0), product of:
             0.27915308 = queryWeight, product of:
               2.5633056 = boost
               4.284727 = idf(docFreq=1655, maxDocs=44218)
               0.025416683 = queryNorm
             0.23432101 = fieldWeight in 1254, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.284727 = idf(docFreq=1655, maxDocs=44218)
               0.0546875 = fieldNorm(doc=1254)
       0.36 = coord(9/25)
   

2. Callan, J.: Distributed information retrieval (2000) 0.16

   0.16011992 = sum of:
     0.16011992 = product of:
       0.57185686 = sum of:
         0.04230279 = weight(abstract_txt:retrieval in 31) [ClassicSimilarity], result of:
           0.04230279 = score(doc=31,freq=2.0), product of:
             0.09181435 = queryWeight, product of:
               1.039488 = boost
               3.4751394 = idf(docFreq=3720, maxDocs=44218)
               0.025416683 = queryNorm
             0.4607427 = fieldWeight in 31, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               3.4751394 = idf(docFreq=3720, maxDocs=44218)
               0.09375 = fieldNorm(doc=31)
         0.035102475 = weight(abstract_txt:different in 31) [ClassicSimilarity], result of:
           0.035102475 = score(doc=31,freq=1.0), product of:
             0.10214874 = queryWeight, product of:
               1.0964295 = boost
               3.6655018 = idf(docFreq=3075, maxDocs=44218)
               0.025416683 = queryNorm
             0.3436408 = fieldWeight in 31, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               3.6655018 = idf(docFreq=3075, maxDocs=44218)
               0.09375 = fieldNorm(doc=31)
         0.03618877 = weight(abstract_txt:into in 31) [ClassicSimilarity], result of:
           0.03618877 = score(doc=31,freq=1.0), product of:
             0.10424544 = queryWeight, product of:
               1.1076249 = boost
               3.7029297 = idf(docFreq=2962, maxDocs=44218)
               0.025416683 = queryNorm
             0.34714967 = fieldWeight in 31, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               3.7029297 = idf(docFreq=2962, maxDocs=44218)
               0.09375 = fieldNorm(doc=31)
         0.15264285 = weight(abstract_txt:merging in 31) [ClassicSimilarity], result of:
           0.15264285 = score(doc=31,freq=1.0), product of:
             0.21599755 = queryWeight, product of:
               1.1273885 = boost
               7.538004 = idf(docFreq=63, maxDocs=44218)
               0.025416683 = queryNorm
             0.70668787 = fieldWeight in 31, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               7.538004 = idf(docFreq=63, maxDocs=44218)
               0.09375 = fieldNorm(doc=31)
         0.122488745 = weight(abstract_txt:databases in 31) [ClassicSimilarity], result of:
           0.122488745 = score(doc=31,freq=4.0), product of:
             0.14804213 = queryWeight, product of:
               1.3199481 = boost
               4.4127526 = idf(docFreq=1456, maxDocs=44218)
               0.025416683 = queryNorm
             0.82739115 = fieldWeight in 31, product of:
               2.0 = tf(freq=4.0), with freq of:
                 4.0 = termFreq=4.0
               4.4127526 = idf(docFreq=1456, maxDocs=44218)
               0.09375 = fieldNorm(doc=31)
         0.07099733 = weight(abstract_txt:environment in 31) [ClassicSimilarity], result of:
           0.07099733 = score(doc=31,freq=1.0), product of:
             0.16336884 = queryWeight, product of:
               1.3865923 = boost
               4.635553 = idf(docFreq=1165, maxDocs=44218)
               0.025416683 = queryNorm
             0.43458307 = fieldWeight in 31, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.635553 = idf(docFreq=1165, maxDocs=44218)
               0.09375 = fieldNorm(doc=31)
         0.11213388 = weight(abstract_txt:searching in 31) [ClassicSimilarity], result of:
           0.11213388 = score(doc=31,freq=1.0), product of:
             0.27915308 = queryWeight, product of:
               2.5633056 = boost
               4.284727 = idf(docFreq=1655, maxDocs=44218)
               0.025416683 = queryNorm
             0.40169317 = fieldWeight in 31, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.284727 = idf(docFreq=1655, maxDocs=44218)
               0.09375 = fieldNorm(doc=31)
       0.28 = coord(7/25)
   

3. Basili, C.: Subject searching for information : what does it mean in today's Internet environment? (1995) 0.13

   0.13332504 = sum of:
     0.13332504 = product of:
       0.555521 = sum of:
         0.030157307 = weight(abstract_txt:into in 3879) [ClassicSimilarity], result of:
           0.030157307 = score(doc=3879,freq=1.0), product of:
             0.10424544 = queryWeight, product of:
               1.1076249 = boost
               3.7029297 = idf(docFreq=2962, maxDocs=44218)
               0.025416683 = queryNorm
             0.28929138 = fieldWeight in 3879, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               3.7029297 = idf(docFreq=2962, maxDocs=44218)
               0.078125 = fieldNorm(doc=3879)
         0.16561815 = weight(abstract_txt:multiplicity in 3879) [ClassicSimilarity], result of:
           0.16561815 = score(doc=3879,freq=1.0), product of:
             0.25754747 = queryWeight, product of:
               1.2310561 = boost
               8.231152 = idf(docFreq=31, maxDocs=44218)
               0.025416683 = queryNorm
             0.6430587 = fieldWeight in 3879, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               8.231152 = idf(docFreq=31, maxDocs=44218)
               0.078125 = fieldNorm(doc=3879)
         0.04339368 = weight(abstract_txt:need in 3879) [ClassicSimilarity], result of:
           0.04339368 = score(doc=3879,freq=1.0), product of:
             0.13286574 = queryWeight, product of:
               1.2504625 = boost
               4.180454 = idf(docFreq=1837, maxDocs=44218)
               0.025416683 = queryNorm
             0.32659796 = fieldWeight in 3879, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.180454 = idf(docFreq=1837, maxDocs=44218)
               0.078125 = fieldNorm(doc=3879)
         0.08302652 = weight(abstract_txt:network in 3879) [ClassicSimilarity], result of:
           0.08302652 = score(doc=3879,freq=2.0), product of:
             0.16252865 = queryWeight, product of:
               1.3830222 = boost
               4.6236176 = idf(docFreq=1179, maxDocs=44218)
               0.025416683 = queryNorm
             0.5108424 = fieldWeight in 3879, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               4.6236176 = idf(docFreq=1179, maxDocs=44218)
               0.078125 = fieldNorm(doc=3879)
         0.13988046 = weight(abstract_txt:networked in 3879) [ClassicSimilarity], result of:
           0.13988046 = score(doc=3879,freq=1.0), product of:
             0.2899346 = queryWeight, product of:
               1.8472012 = boost
               6.1754265 = idf(docFreq=249, maxDocs=44218)
               0.025416683 = queryNorm
             0.4824552 = fieldWeight in 3879, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               6.1754265 = idf(docFreq=249, maxDocs=44218)
               0.078125 = fieldNorm(doc=3879)
         0.093444906 = weight(abstract_txt:searching in 3879) [ClassicSimilarity], result of:
           0.093444906 = score(doc=3879,freq=1.0), product of:
             0.27915308 = queryWeight, product of:
               2.5633056 = boost
               4.284727 = idf(docFreq=1655, maxDocs=44218)
               0.025416683 = queryNorm
             0.3347443 = fieldWeight in 3879, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.284727 = idf(docFreq=1655, maxDocs=44218)
               0.078125 = fieldNorm(doc=3879)
       0.24 = coord(6/25)
   

4. Dextre Clarke, S.G.: Thesaural relationships (2001) 0.13

   0.13209009 = sum of:
     0.13209009 = product of:
       0.5503754 = sum of:
         0.029912591 = weight(abstract_txt:retrieval in 1149) [ClassicSimilarity], result of:
           0.029912591 = score(doc=1149,freq=1.0), product of:
             0.09181435 = queryWeight, product of:
               1.039488 = boost
               3.4751394 = idf(docFreq=3720, maxDocs=44218)
               0.025416683 = queryNorm
             0.3257943 = fieldWeight in 1149, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               3.4751394 = idf(docFreq=3720, maxDocs=44218)
               0.09375 = fieldNorm(doc=1149)
         0.059823006 = weight(abstract_txt:support in 1149) [ClassicSimilarity], result of:
           0.059823006 = score(doc=1149,freq=1.0), product of:
             0.14574265 = queryWeight, product of:
               1.3096569 = boost
               4.378348 = idf(docFreq=1507, maxDocs=44218)
               0.025416683 = queryNorm
             0.41047013 = fieldWeight in 1149, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.378348 = idf(docFreq=1507, maxDocs=44218)
               0.09375 = fieldNorm(doc=1149)
         0.07099733 = weight(abstract_txt:environment in 1149) [ClassicSimilarity], result of:
           0.07099733 = score(doc=1149,freq=1.0), product of:
             0.16336884 = queryWeight, product of:
               1.3865923 = boost
               4.635553 = idf(docFreq=1165, maxDocs=44218)
               0.025416683 = queryNorm
             0.43458307 = fieldWeight in 1149, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.635553 = idf(docFreq=1165, maxDocs=44218)
               0.09375 = fieldNorm(doc=1149)
         0.109652065 = weight(abstract_txt:vocabulary in 1149) [ClassicSimilarity], result of:
           0.109652065 = score(doc=1149,freq=1.0), product of:
             0.21828258 = queryWeight, product of:
               1.6027793 = boost
               5.358293 = idf(docFreq=565, maxDocs=44218)
               0.025416683 = queryNorm
             0.50233996 = fieldWeight in 1149, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.358293 = idf(docFreq=565, maxDocs=44218)
               0.09375 = fieldNorm(doc=1149)
         0.16785654 = weight(abstract_txt:networked in 1149) [ClassicSimilarity], result of:
           0.16785654 = score(doc=1149,freq=1.0), product of:
             0.2899346 = queryWeight, product of:
               1.8472012 = boost
               6.1754265 = idf(docFreq=249, maxDocs=44218)
               0.025416683 = queryNorm
             0.57894623 = fieldWeight in 1149, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               6.1754265 = idf(docFreq=249, maxDocs=44218)
               0.09375 = fieldNorm(doc=1149)
         0.11213388 = weight(abstract_txt:searching in 1149) [ClassicSimilarity], result of:
           0.11213388 = score(doc=1149,freq=1.0), product of:
             0.27915308 = queryWeight, product of:
               2.5633056 = boost
               4.284727 = idf(docFreq=1655, maxDocs=44218)
               0.025416683 = queryNorm
             0.40169317 = fieldWeight in 1149, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.284727 = idf(docFreq=1655, maxDocs=44218)
               0.09375 = fieldNorm(doc=1149)
       0.24 = coord(6/25)
   

5. OCLC SiteSearch 3.0 software adds features, flexibility (1996) 0.13

   0.13155346 = sum of:
     0.13155346 = product of:
       0.5481394 = sum of:
         0.04222023 = weight(abstract_txt:into in 6760) [ClassicSimilarity], result of:
           0.04222023 = score(doc=6760,freq=1.0), product of:
             0.10424544 = queryWeight, product of:
               1.1076249 = boost
               3.7029297 = idf(docFreq=2962, maxDocs=44218)
               0.025416683 = queryNorm
             0.40500793 = fieldWeight in 6760, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               3.7029297 = idf(docFreq=2962, maxDocs=44218)
               0.109375 = fieldNorm(doc=6760)
         0.06979351 = weight(abstract_txt:support in 6760) [ClassicSimilarity], result of:
           0.06979351 = score(doc=6760,freq=1.0), product of:
             0.14574265 = queryWeight, product of:
               1.3096569 = boost
               4.378348 = idf(docFreq=1507, maxDocs=44218)
               0.025416683 = queryNorm
             0.4788818 = fieldWeight in 6760, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.378348 = idf(docFreq=1507, maxDocs=44218)
               0.109375 = fieldNorm(doc=6760)
         0.07145177 = weight(abstract_txt:databases in 6760) [ClassicSimilarity], result of:
           0.07145177 = score(doc=6760,freq=1.0), product of:
             0.14804213 = queryWeight, product of:
               1.3199481 = boost
               4.4127526 = idf(docFreq=1456, maxDocs=44218)
               0.025416683 = queryNorm
             0.48264483 = fieldWeight in 6760, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.4127526 = idf(docFreq=1456, maxDocs=44218)
               0.109375 = fieldNorm(doc=6760)
         0.08219206 = weight(abstract_txt:network in 6760) [ClassicSimilarity], result of:
           0.08219206 = score(doc=6760,freq=1.0), product of:
             0.16252865 = queryWeight, product of:
               1.3830222 = boost
               4.6236176 = idf(docFreq=1179, maxDocs=44218)
               0.025416683 = queryNorm
             0.50570816 = fieldWeight in 6760, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.6236176 = idf(docFreq=1179, maxDocs=44218)
               0.109375 = fieldNorm(doc=6760)
         0.15165895 = weight(abstract_txt:increased in 6760) [ClassicSimilarity], result of:
           0.15165895 = score(doc=6760,freq=1.0), product of:
             0.24450554 = queryWeight, product of:
               1.6963229 = boost
               5.6710215 = idf(docFreq=413, maxDocs=44218)
               0.025416683 = queryNorm
             0.620268 = fieldWeight in 6760, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.6710215 = idf(docFreq=413, maxDocs=44218)
               0.109375 = fieldNorm(doc=6760)
         0.13082287 = weight(abstract_txt:searching in 6760) [ClassicSimilarity], result of:
           0.13082287 = score(doc=6760,freq=1.0), product of:
             0.27915308 = queryWeight, product of:
               2.5633056 = boost
               4.284727 = idf(docFreq=1655, maxDocs=44218)
               0.025416683 = queryNorm
             0.46864203 = fieldWeight in 6760, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.284727 = idf(docFreq=1655, maxDocs=44218)
               0.109375 = fieldNorm(doc=6760)
       0.24 = coord(6/25)