Document (#13985)

Author

Crook, M.

Title

¬The OCLC Online Union Catalog : an incomparable library resource

Source

Publishing research quarterly. 11(1995) no.3, S.39-50

Year

1995

Abstract

The OCLC OLUC is arguably the world's foremost bibliographic database in terms of number of participating libraries,a nd depth and breadth of coverage. As of 30 June 1994, the OLUC contained more than 29 million records and grows at a rate of approximately 31.000 records a week. Statistics are presented for distribution of OLUC records by date and place of publication; languages represented in OLUC; the number of records for each format; the number of bibliographic records of composers and authors; and the most frequently occuring topical subject headings

Object

OLUC

Similar documents (content)

1. Lunati, G.: On line union catalogue (OLUC) compie 25 anni (1996) 0.30

   0.29678544 = sum of:
     0.29678544 = product of:
       1.4839272 = sum of:
         0.04872756 = weight(abstract_txt:date in 1103) [ClassicSimilarity], result of:
           0.04872756 = score(doc=1103,freq=1.0), product of:
             0.08600399 = queryWeight, product of:
               1.0040882 = boost
               6.043448 = idf(docFreq=280, maxDocs=43556)
               0.014173005 = queryNorm
             0.56657326 = fieldWeight in 1103, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               6.043448 = idf(docFreq=280, maxDocs=43556)
               0.09375 = fieldNorm(doc=1103)
         0.04727801 = weight(abstract_txt:bibliographic in 1103) [ClassicSimilarity], result of:
           0.04727801 = score(doc=1103,freq=2.0), product of:
             0.08428979 = queryWeight, product of:
               1.4057724 = boost
               4.2305613 = idf(docFreq=1721, maxDocs=43556)
               0.014173005 = queryNorm
             0.5608984 = fieldWeight in 1103, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               4.2305613 = idf(docFreq=1721, maxDocs=43556)
               0.09375 = fieldNorm(doc=1103)
         0.1711712 = weight(abstract_txt:oclc in 1103) [ClassicSimilarity], result of:
           0.1711712 = score(doc=1103,freq=4.0), product of:
             0.15774149 = queryWeight, product of:
               1.923094 = boost
               5.7874 = idf(docFreq=362, maxDocs=43556)
               0.014173005 = queryNorm
             1.0851375 = fieldWeight in 1103, product of:
               2.0 = tf(freq=4.0), with freq of:
                 4.0 = termFreq=4.0
               5.7874 = idf(docFreq=362, maxDocs=43556)
               0.09375 = fieldNorm(doc=1103)
         0.13516948 = weight(abstract_txt:records in 1103) [ClassicSimilarity], result of:
           0.13516948 = score(doc=1103,freq=2.0), product of:
             0.23044533 = queryWeight, product of:
               3.6752045 = boost
               4.424095 = idf(docFreq=1418, maxDocs=43556)
               0.014173005 = queryNorm
             0.5865577 = fieldWeight in 1103, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               4.424095 = idf(docFreq=1418, maxDocs=43556)
               0.09375 = fieldNorm(doc=1103)
         1.081581 = weight(abstract_txt:oluc in 1103) [ClassicSimilarity], result of:
           1.081581 = score(doc=1103,freq=3.0), product of:
             0.7476318 = queryWeight, product of:
               5.920882 = boost
               8.909214 = idf(docFreq=15, maxDocs=43556)
               0.014173005 = queryNorm
             1.446676 = fieldWeight in 1103, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               8.909214 = idf(docFreq=15, maxDocs=43556)
               0.09375 = fieldNorm(doc=1103)
       0.2 = coord(5/25)
   

2. OCLC annouces publishing partners for electronic collections online (1997) 0.27

   0.2659672 = sum of:
     0.2659672 = product of:
       1.1081966 = sum of:
         0.04951921 = weight(abstract_txt:union in 397) [ClassicSimilarity], result of:
           0.04951921 = score(doc=397,freq=1.0), product of:
             0.08693299 = queryWeight, product of:
               1.0094966 = boost
               6.0760007 = idf(docFreq=271, maxDocs=43556)
               0.014173005 = queryNorm
             0.5696251 = fieldWeight in 397, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               6.0760007 = idf(docFreq=271, maxDocs=43556)
               0.09375 = fieldNorm(doc=397)
         0.07425095 = weight(abstract_txt:approximately in 397) [ClassicSimilarity], result of:
           0.07425095 = score(doc=397,freq=1.0), product of:
             0.113885954 = queryWeight, product of:
               1.1554407 = boost
               6.954415 = idf(docFreq=112, maxDocs=43556)
               0.014173005 = queryNorm
             0.6519764 = fieldWeight in 397, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               6.954415 = idf(docFreq=112, maxDocs=43556)
               0.09375 = fieldNorm(doc=397)
         0.033430606 = weight(abstract_txt:bibliographic in 397) [ClassicSimilarity], result of:
           0.033430606 = score(doc=397,freq=1.0), product of:
             0.08428979 = queryWeight, product of:
               1.4057724 = boost
               4.2305613 = idf(docFreq=1721, maxDocs=43556)
               0.014173005 = queryNorm
             0.39661512 = fieldWeight in 397, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.2305613 = idf(docFreq=1721, maxDocs=43556)
               0.09375 = fieldNorm(doc=397)
         0.19137523 = weight(abstract_txt:oclc in 397) [ClassicSimilarity], result of:
           0.19137523 = score(doc=397,freq=5.0), product of:
             0.15774149 = queryWeight, product of:
               1.923094 = boost
               5.7874 = idf(docFreq=362, maxDocs=43556)
               0.014173005 = queryNorm
             1.2132206 = fieldWeight in 397, product of:
               2.236068 = tf(freq=5.0), with freq of:
                 5.0 = termFreq=5.0
               5.7874 = idf(docFreq=362, maxDocs=43556)
               0.09375 = fieldNorm(doc=397)
         0.13516948 = weight(abstract_txt:records in 397) [ClassicSimilarity], result of:
           0.13516948 = score(doc=397,freq=2.0), product of:
             0.23044533 = queryWeight, product of:
               3.6752045 = boost
               4.424095 = idf(docFreq=1418, maxDocs=43556)
               0.014173005 = queryNorm
             0.5865577 = fieldWeight in 397, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               4.424095 = idf(docFreq=1418, maxDocs=43556)
               0.09375 = fieldNorm(doc=397)
         0.6244511 = weight(abstract_txt:oluc in 397) [ClassicSimilarity], result of:
           0.6244511 = score(doc=397,freq=1.0), product of:
             0.7476318 = queryWeight, product of:
               5.920882 = boost
               8.909214 = idf(docFreq=15, maxDocs=43556)
               0.014173005 = queryNorm
             0.8352388 = fieldWeight in 397, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               8.909214 = idf(docFreq=15, maxDocs=43556)
               0.09375 = fieldNorm(doc=397)
       0.24 = coord(6/25)
   

3. Perry, S.; Salisbury, L.: ¬The ten most effective ways to search WorldCat on FirstSearch (1996) 0.20

   0.19555014 = sum of:
     0.19555014 = product of:
       0.8147923 = sum of:
         0.041266005 = weight(abstract_txt:union in 6586) [ClassicSimilarity], result of:
           0.041266005 = score(doc=6586,freq=1.0), product of:
             0.08693299 = queryWeight, product of:
               1.0094966 = boost
               6.0760007 = idf(docFreq=271, maxDocs=43556)
               0.014173005 = queryNorm
             0.47468755 = fieldWeight in 6586, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               6.0760007 = idf(docFreq=271, maxDocs=43556)
               0.078125 = fieldNorm(doc=6586)
         0.04477854 = weight(abstract_txt:million in 6586) [ClassicSimilarity], result of:
           0.04477854 = score(doc=6586,freq=1.0), product of:
             0.09179864 = queryWeight, product of:
               1.0373628 = boost
               6.2437234 = idf(docFreq=229, maxDocs=43556)
               0.014173005 = queryNorm
             0.48779088 = fieldWeight in 6586, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               6.2437234 = idf(docFreq=229, maxDocs=43556)
               0.078125 = fieldNorm(doc=6586)
         0.027858837 = weight(abstract_txt:bibliographic in 6586) [ClassicSimilarity], result of:
           0.027858837 = score(doc=6586,freq=1.0), product of:
             0.08428979 = queryWeight, product of:
               1.4057724 = boost
               4.2305613 = idf(docFreq=1721, maxDocs=43556)
               0.014173005 = queryNorm
             0.33051258 = fieldWeight in 6586, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.2305613 = idf(docFreq=1721, maxDocs=43556)
               0.078125 = fieldNorm(doc=6586)
         0.10086359 = weight(abstract_txt:oclc in 6586) [ClassicSimilarity], result of:
           0.10086359 = score(doc=6586,freq=2.0), product of:
             0.15774149 = queryWeight, product of:
               1.923094 = boost
               5.7874 = idf(docFreq=362, maxDocs=43556)
               0.014173005 = queryNorm
             0.6394234 = fieldWeight in 6586, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               5.7874 = idf(docFreq=362, maxDocs=43556)
               0.078125 = fieldNorm(doc=6586)
         0.07964938 = weight(abstract_txt:records in 6586) [ClassicSimilarity], result of:
           0.07964938 = score(doc=6586,freq=1.0), product of:
             0.23044533 = queryWeight, product of:
               3.6752045 = boost
               4.424095 = idf(docFreq=1418, maxDocs=43556)
               0.014173005 = queryNorm
             0.34563243 = fieldWeight in 6586, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.424095 = idf(docFreq=1418, maxDocs=43556)
               0.078125 = fieldNorm(doc=6586)
         0.5203759 = weight(abstract_txt:oluc in 6586) [ClassicSimilarity], result of:
           0.5203759 = score(doc=6586,freq=1.0), product of:
             0.7476318 = queryWeight, product of:
               5.920882 = boost
               8.909214 = idf(docFreq=15, maxDocs=43556)
               0.014173005 = queryNorm
             0.69603235 = fieldWeight in 6586, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               8.909214 = idf(docFreq=15, maxDocs=43556)
               0.078125 = fieldNorm(doc=6586)
       0.24 = coord(6/25)
   

4. Richwine, P.W.: Using EPIC to search the OCLC Online Union Catalog in a health sciences library (1991) 0.19

   0.19466974 = sum of:
     0.19466974 = product of:
       1.6222478 = sum of:
         0.066025615 = weight(abstract_txt:union in 2356) [ClassicSimilarity], result of:
           0.066025615 = score(doc=2356,freq=1.0), product of:
             0.08693299 = queryWeight, product of:
               1.0094966 = boost
               6.0760007 = idf(docFreq=271, maxDocs=43556)
               0.014173005 = queryNorm
             0.7595001 = fieldWeight in 2356, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               6.0760007 = idf(docFreq=271, maxDocs=43556)
               0.125 = fieldNorm(doc=2356)
         0.11411413 = weight(abstract_txt:oclc in 2356) [ClassicSimilarity], result of:
           0.11411413 = score(doc=2356,freq=1.0), product of:
             0.15774149 = queryWeight, product of:
               1.923094 = boost
               5.7874 = idf(docFreq=362, maxDocs=43556)
               0.014173005 = queryNorm
             0.723425 = fieldWeight in 2356, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.7874 = idf(docFreq=362, maxDocs=43556)
               0.125 = fieldNorm(doc=2356)
         1.442108 = weight(abstract_txt:oluc in 2356) [ClassicSimilarity], result of:
           1.442108 = score(doc=2356,freq=3.0), product of:
             0.7476318 = queryWeight, product of:
               5.920882 = boost
               8.909214 = idf(docFreq=15, maxDocs=43556)
               0.014173005 = queryNorm
             1.9289014 = fieldWeight in 2356, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               8.909214 = idf(docFreq=15, maxDocs=43556)
               0.125 = fieldNorm(doc=2356)
       0.12 = coord(3/25)
   

5. Xu, H.; Lancaster, F.W.: Redundancy and uniqueness of subject access points in online catalogs (1998) 0.16

   0.1599444 = sum of:
     0.1599444 = product of:
       0.799722 = sum of:
         0.040606298 = weight(abstract_txt:date in 2786) [ClassicSimilarity], result of:
           0.040606298 = score(doc=2786,freq=1.0), product of:
             0.08600399 = queryWeight, product of:
               1.0040882 = boost
               6.043448 = idf(docFreq=280, maxDocs=43556)
               0.014173005 = queryNorm
             0.47214437 = fieldWeight in 2786, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               6.043448 = idf(docFreq=280, maxDocs=43556)
               0.078125 = fieldNorm(doc=2786)
         0.07132133 = weight(abstract_txt:oclc in 2786) [ClassicSimilarity], result of:
           0.07132133 = score(doc=2786,freq=1.0), product of:
             0.15774149 = queryWeight, product of:
               1.923094 = boost
               5.7874 = idf(docFreq=362, maxDocs=43556)
               0.014173005 = queryNorm
             0.4521406 = fieldWeight in 2786, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.7874 = idf(docFreq=362, maxDocs=43556)
               0.078125 = fieldNorm(doc=2786)
         0.05477727 = weight(abstract_txt:number in 2786) [ClassicSimilarity], result of:
           0.05477727 = score(doc=2786,freq=2.0), product of:
             0.12019516 = queryWeight, product of:
               2.0559695 = boost
               4.124852 = idf(docFreq=1913, maxDocs=43556)
               0.014173005 = queryNorm
             0.45573607 = fieldWeight in 2786, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               4.124852 = idf(docFreq=1913, maxDocs=43556)
               0.078125 = fieldNorm(doc=2786)
         0.11264122 = weight(abstract_txt:records in 2786) [ClassicSimilarity], result of:
           0.11264122 = score(doc=2786,freq=2.0), product of:
             0.23044533 = queryWeight, product of:
               3.6752045 = boost
               4.424095 = idf(docFreq=1418, maxDocs=43556)
               0.014173005 = queryNorm
             0.48879805 = fieldWeight in 2786, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               4.424095 = idf(docFreq=1418, maxDocs=43556)
               0.078125 = fieldNorm(doc=2786)
         0.5203759 = weight(abstract_txt:oluc in 2786) [ClassicSimilarity], result of:
           0.5203759 = score(doc=2786,freq=1.0), product of:
             0.7476318 = queryWeight, product of:
               5.920882 = boost
               8.909214 = idf(docFreq=15, maxDocs=43556)
               0.014173005 = queryNorm
             0.69603235 = fieldWeight in 2786, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               8.909214 = idf(docFreq=15, maxDocs=43556)
               0.078125 = fieldNorm(doc=2786)
       0.2 = coord(5/25)