Document (#29761)

Author

Simeoni, F.

Title

¬The case for metadata harvesting : how do the library-based services compare with the expert services?

Source

Library review. 53(2004) no.5, S.255-258

Year

2004

Abstract

Metadata harvesting is an increasingly popular model of interaction between the mutually autonomous parties of medium, medium-large federations of digital library services. With a harvesting protocol, in particular, resource descriptions locally available at each party can be served to remote applications for the implementation of federated services, such as resource discovery. This article offers a systematic explanation of the success of the model and its standard implementations in the context of current initiatives for national and international federations.

Content

Vgl. auch unter: http://www.emeraldinsight.com/10.1108/00242530410538382.

Theme

Verteilte bibliographische Datenbanken

Object

OAI-PMH

Similar documents (content)

1. Arms, C.R.: Available and useful : OAI at the Library of Congress (2003) 0.25

   0.25390816 = sum of:
     0.25390816 = product of:
       1.0579507 = sum of:
         0.046424545 = weight(abstract_txt:discovery in 4773) [ClassicSimilarity], result of:
           0.046424545 = score(doc=4773,freq=1.0), product of:
             0.10574982 = queryWeight, product of:
               5.619245 = idf(docFreq=435, maxDocs=44218)
               0.018819222 = queryNorm
             0.43900353 = fieldWeight in 4773, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.619245 = idf(docFreq=435, maxDocs=44218)
               0.078125 = fieldNorm(doc=4773)
         0.0169346 = weight(abstract_txt:library in 4773) [ClassicSimilarity], result of:
           0.0169346 = score(doc=4773,freq=1.0), product of:
             0.06802071 = queryWeight, product of:
               1.134216 = boost
               3.1867187 = idf(docFreq=4964, maxDocs=44218)
               0.018819222 = queryNorm
             0.2489624 = fieldWeight in 4773, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               3.1867187 = idf(docFreq=4964, maxDocs=44218)
               0.078125 = fieldNorm(doc=4773)
         0.13348037 = weight(abstract_txt:protocol in 4773) [ClassicSimilarity], result of:
           0.13348037 = score(doc=4773,freq=3.0), product of:
             0.14825833 = queryWeight, product of:
               1.1840491 = boost
               6.653462 = idf(docFreq=154, maxDocs=44218)
               0.018819222 = queryNorm
             0.9003229 = fieldWeight in 4773, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               6.653462 = idf(docFreq=154, maxDocs=44218)
               0.078125 = fieldNorm(doc=4773)
         0.121721156 = weight(abstract_txt:metadata in 4773) [ClassicSimilarity], result of:
           0.121721156 = score(doc=4773,freq=4.0), product of:
             0.15959352 = queryWeight, product of:
               1.737332 = boost
               4.881247 = idf(docFreq=911, maxDocs=44218)
               0.018819222 = queryNorm
             0.76269484 = fieldWeight in 4773, product of:
               2.0 = tf(freq=4.0), with freq of:
                 4.0 = termFreq=4.0
               4.881247 = idf(docFreq=911, maxDocs=44218)
               0.078125 = fieldNorm(doc=4773)
         0.13395281 = weight(abstract_txt:services in 4773) [ClassicSimilarity], result of:
           0.13395281 = score(doc=4773,freq=3.0), product of:
             0.23590042 = queryWeight, product of:
               2.9871328 = boost
               4.1963577 = idf(docFreq=1808, maxDocs=44218)
               0.018819222 = queryNorm
             0.5678363 = fieldWeight in 4773, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               4.1963577 = idf(docFreq=1808, maxDocs=44218)
               0.078125 = fieldNorm(doc=4773)
         0.6054372 = weight(abstract_txt:harvesting in 4773) [ClassicSimilarity], result of:
           0.6054372 = score(doc=4773,freq=3.0), product of:
             0.58590513 = queryWeight, product of:
               4.0769415 = boost
               7.636444 = idf(docFreq=57, maxDocs=44218)
               0.018819222 = queryNorm
             1.0333366 = fieldWeight in 4773, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               7.636444 = idf(docFreq=57, maxDocs=44218)
               0.078125 = fieldNorm(doc=4773)
       0.24 = coord(6/25)
   

2. Shreeves, S.L.; Kaczmarek, J.S.; Cole, T.W.: Harvesting cultural heritage metadata using OAI Protocol (2003) 0.21

   0.21390083 = sum of:
     0.21390083 = product of:
       0.8912535 = sum of:
         0.046424545 = weight(abstract_txt:discovery in 4775) [ClassicSimilarity], result of:
           0.046424545 = score(doc=4775,freq=1.0), product of:
             0.10574982 = queryWeight, product of:
               5.619245 = idf(docFreq=435, maxDocs=44218)
               0.018819222 = queryNorm
             0.43900353 = fieldWeight in 4775, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.619245 = idf(docFreq=435, maxDocs=44218)
               0.078125 = fieldNorm(doc=4775)
         0.023949137 = weight(abstract_txt:library in 4775) [ClassicSimilarity], result of:
           0.023949137 = score(doc=4775,freq=2.0), product of:
             0.06802071 = queryWeight, product of:
               1.134216 = boost
               3.1867187 = idf(docFreq=4964, maxDocs=44218)
               0.018819222 = queryNorm
             0.35208598 = fieldWeight in 4775, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               3.1867187 = idf(docFreq=4964, maxDocs=44218)
               0.078125 = fieldNorm(doc=4775)
         0.07706494 = weight(abstract_txt:protocol in 4775) [ClassicSimilarity], result of:
           0.07706494 = score(doc=4775,freq=1.0), product of:
             0.14825833 = queryWeight, product of:
               1.1840491 = boost
               6.653462 = idf(docFreq=154, maxDocs=44218)
               0.018819222 = queryNorm
             0.51980174 = fieldWeight in 4775, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               6.653462 = idf(docFreq=154, maxDocs=44218)
               0.078125 = fieldNorm(doc=4775)
         0.17213972 = weight(abstract_txt:metadata in 4775) [ClassicSimilarity], result of:
           0.17213972 = score(doc=4775,freq=8.0), product of:
             0.15959352 = queryWeight, product of:
               1.737332 = boost
               4.881247 = idf(docFreq=911, maxDocs=44218)
               0.018819222 = queryNorm
             1.0786134 = fieldWeight in 4775, product of:
               2.828427 = tf(freq=8.0), with freq of:
                 8.0 = termFreq=8.0
               4.881247 = idf(docFreq=911, maxDocs=44218)
               0.078125 = fieldNorm(doc=4775)
         0.0773377 = weight(abstract_txt:services in 4775) [ClassicSimilarity], result of:
           0.0773377 = score(doc=4775,freq=1.0), product of:
             0.23590042 = queryWeight, product of:
               2.9871328 = boost
               4.1963577 = idf(docFreq=1808, maxDocs=44218)
               0.018819222 = queryNorm
             0.32784045 = fieldWeight in 4775, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.1963577 = idf(docFreq=1808, maxDocs=44218)
               0.078125 = fieldNorm(doc=4775)
         0.4943374 = weight(abstract_txt:harvesting in 4775) [ClassicSimilarity], result of:
           0.4943374 = score(doc=4775,freq=2.0), product of:
             0.58590513 = queryWeight, product of:
               4.0769415 = boost
               7.636444 = idf(docFreq=57, maxDocs=44218)
               0.018819222 = queryNorm
             0.8437158 = fieldWeight in 4775, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               7.636444 = idf(docFreq=57, maxDocs=44218)
               0.078125 = fieldNorm(doc=4775)
       0.24 = coord(6/25)
   

3. Van de Sompel, H.; Young, J.A.; Hickey, T.B.: Using the OAI-PMH ... differently (2003) 0.19

   0.19431235 = sum of:
     0.19431235 = product of:
       0.8096348 = sum of:
         0.05252338 = weight(abstract_txt:discovery in 1191) [ClassicSimilarity], result of:
           0.05252338 = score(doc=1191,freq=2.0), product of:
             0.10574982 = queryWeight, product of:
               5.619245 = idf(docFreq=435, maxDocs=44218)
               0.018819222 = queryNorm
             0.4966758 = fieldWeight in 1191, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               5.619245 = idf(docFreq=435, maxDocs=44218)
               0.0625 = fieldNorm(doc=1191)
         0.1067843 = weight(abstract_txt:protocol in 1191) [ClassicSimilarity], result of:
           0.1067843 = score(doc=1191,freq=3.0), product of:
             0.14825833 = queryWeight, product of:
               1.1840491 = boost
               6.653462 = idf(docFreq=154, maxDocs=44218)
               0.018819222 = queryNorm
             0.72025836 = fieldWeight in 1191, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               6.653462 = idf(docFreq=154, maxDocs=44218)
               0.0625 = fieldNorm(doc=1191)
         0.1192619 = weight(abstract_txt:metadata in 1191) [ClassicSimilarity], result of:
           0.1192619 = score(doc=1191,freq=6.0), product of:
             0.15959352 = queryWeight, product of:
               1.737332 = boost
               4.881247 = idf(docFreq=911, maxDocs=44218)
               0.018819222 = queryNorm
             0.7472853 = fieldWeight in 1191, product of:
               2.4494898 = tf(freq=6.0), with freq of:
                 6.0 = termFreq=6.0
               4.881247 = idf(docFreq=911, maxDocs=44218)
               0.0625 = fieldNorm(doc=1191)
         0.07372518 = weight(abstract_txt:resource in 1191) [ClassicSimilarity], result of:
           0.07372518 = score(doc=1191,freq=2.0), product of:
             0.16703153 = queryWeight, product of:
               1.7773559 = boost
               4.993699 = idf(docFreq=814, maxDocs=44218)
               0.018819222 = queryNorm
             0.4413848 = fieldWeight in 1191, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               4.993699 = idf(docFreq=814, maxDocs=44218)
               0.0625 = fieldNorm(doc=1191)
         0.061870158 = weight(abstract_txt:services in 1191) [ClassicSimilarity], result of:
           0.061870158 = score(doc=1191,freq=1.0), product of:
             0.23590042 = queryWeight, product of:
               2.9871328 = boost
               4.1963577 = idf(docFreq=1808, maxDocs=44218)
               0.018819222 = queryNorm
             0.26227236 = fieldWeight in 1191, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.1963577 = idf(docFreq=1808, maxDocs=44218)
               0.0625 = fieldNorm(doc=1191)
         0.39546993 = weight(abstract_txt:harvesting in 1191) [ClassicSimilarity], result of:
           0.39546993 = score(doc=1191,freq=2.0), product of:
             0.58590513 = queryWeight, product of:
               4.0769415 = boost
               7.636444 = idf(docFreq=57, maxDocs=44218)
               0.018819222 = queryNorm
             0.67497265 = fieldWeight in 1191, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               7.636444 = idf(docFreq=57, maxDocs=44218)
               0.0625 = fieldNorm(doc=1191)
       0.24 = coord(6/25)
   

4. Van de Sompel, H.; Nelson, M.L.; Lagoze, C.; Warner, S.: Resource harvesting within the OAI-PMH framework (2004) 0.19

   0.19313101 = sum of:
     0.19313101 = product of:
       0.9656551 = sum of:
         0.05570945 = weight(abstract_txt:discovery in 4110) [ClassicSimilarity], result of:
           0.05570945 = score(doc=4110,freq=1.0), product of:
             0.10574982 = queryWeight, product of:
               5.619245 = idf(docFreq=435, maxDocs=44218)
               0.018819222 = queryNorm
             0.5268042 = fieldWeight in 4110, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.619245 = idf(docFreq=435, maxDocs=44218)
               0.09375 = fieldNorm(doc=4110)
         0.092477925 = weight(abstract_txt:protocol in 4110) [ClassicSimilarity], result of:
           0.092477925 = score(doc=4110,freq=1.0), product of:
             0.14825833 = queryWeight, product of:
               1.1840491 = boost
               6.653462 = idf(docFreq=154, maxDocs=44218)
               0.018819222 = queryNorm
             0.6237621 = fieldWeight in 4110, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               6.653462 = idf(docFreq=154, maxDocs=44218)
               0.09375 = fieldNorm(doc=4110)
         0.1460654 = weight(abstract_txt:metadata in 4110) [ClassicSimilarity], result of:
           0.1460654 = score(doc=4110,freq=4.0), product of:
             0.15959352 = queryWeight, product of:
               1.737332 = boost
               4.881247 = idf(docFreq=911, maxDocs=44218)
               0.018819222 = queryNorm
             0.91523385 = fieldWeight in 4110, product of:
               2.0 = tf(freq=4.0), with freq of:
                 4.0 = termFreq=4.0
               4.881247 = idf(docFreq=911, maxDocs=44218)
               0.09375 = fieldNorm(doc=4110)
         0.07819736 = weight(abstract_txt:resource in 4110) [ClassicSimilarity], result of:
           0.07819736 = score(doc=4110,freq=1.0), product of:
             0.16703153 = queryWeight, product of:
               1.7773559 = boost
               4.993699 = idf(docFreq=814, maxDocs=44218)
               0.018819222 = queryNorm
             0.4681593 = fieldWeight in 4110, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.993699 = idf(docFreq=814, maxDocs=44218)
               0.09375 = fieldNorm(doc=4110)
         0.593205 = weight(abstract_txt:harvesting in 4110) [ClassicSimilarity], result of:
           0.593205 = score(doc=4110,freq=2.0), product of:
             0.58590513 = queryWeight, product of:
               4.0769415 = boost
               7.636444 = idf(docFreq=57, maxDocs=44218)
               0.018819222 = queryNorm
             1.012459 = fieldWeight in 4110, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               7.636444 = idf(docFreq=57, maxDocs=44218)
               0.09375 = fieldNorm(doc=4110)
       0.2 = coord(5/25)
   

5. Nelson, M.L.; Harrison, T.L.; Rocker, J.A.: OAI and NASA's scientific and technical information (2003) 0.18

   0.18069091 = sum of:
     0.18069091 = product of:
       0.90345454 = sum of:
         0.050471336 = weight(abstract_txt:popular in 3340) [ClassicSimilarity], result of:
           0.050471336 = score(doc=3340,freq=1.0), product of:
             0.11180925 = queryWeight, product of:
               1.0282508 = boost
               5.777993 = idf(docFreq=371, maxDocs=44218)
               0.018819222 = queryNorm
             0.4514057 = fieldWeight in 3340, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.777993 = idf(docFreq=371, maxDocs=44218)
               0.078125 = fieldNorm(doc=3340)
         0.10898627 = weight(abstract_txt:protocol in 3340) [ClassicSimilarity], result of:
           0.10898627 = score(doc=3340,freq=2.0), product of:
             0.14825833 = queryWeight, product of:
               1.1840491 = boost
               6.653462 = idf(docFreq=154, maxDocs=44218)
               0.018819222 = queryNorm
             0.73511064 = fieldWeight in 3340, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               6.653462 = idf(docFreq=154, maxDocs=44218)
               0.078125 = fieldNorm(doc=3340)
         0.033146072 = weight(abstract_txt:model in 3340) [ClassicSimilarity], result of:
           0.033146072 = score(doc=3340,freq=1.0), product of:
             0.10643373 = queryWeight, product of:
               1.4187791 = boost
               3.986234 = idf(docFreq=2231, maxDocs=44218)
               0.018819222 = queryNorm
             0.31142452 = fieldWeight in 3340, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               3.986234 = idf(docFreq=2231, maxDocs=44218)
               0.078125 = fieldNorm(doc=3340)
         0.105413616 = weight(abstract_txt:metadata in 3340) [ClassicSimilarity], result of:
           0.105413616 = score(doc=3340,freq=3.0), product of:
             0.15959352 = queryWeight, product of:
               1.737332 = boost
               4.881247 = idf(docFreq=911, maxDocs=44218)
               0.018819222 = queryNorm
             0.6605131 = fieldWeight in 3340, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               4.881247 = idf(docFreq=911, maxDocs=44218)
               0.078125 = fieldNorm(doc=3340)
         0.6054372 = weight(abstract_txt:harvesting in 3340) [ClassicSimilarity], result of:
           0.6054372 = score(doc=3340,freq=3.0), product of:
             0.58590513 = queryWeight, product of:
               4.0769415 = boost
               7.636444 = idf(docFreq=57, maxDocs=44218)
               0.018819222 = queryNorm
             1.0333366 = fieldWeight in 3340, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               7.636444 = idf(docFreq=57, maxDocs=44218)
               0.078125 = fieldNorm(doc=3340)
       0.2 = coord(5/25)