Document (#32358)

Author

Callicott, B.
Vaughn, D.

Title

Google Scholar vs. Library Scholar : testing the performance of Schoogle

Source

Libraries and Google. Eds.: Miller, W. u. R.M. Pellen

Imprint

Binghamton, N.Y. : Haworth

Year

2005

Pages

S.71-88

Series

Internet reference services quarterly. 10(2005) nos.3/4

Abstract

How does the content of Google Scholar, a.k.a. "Schoogle, compare to that of subscription databases and the library catalog? Five sample research topics indigenous to undergraduate libraries were searched in Google Scholar, the College of Charleston online catalog, EBSCO's Academic Search Premier database, and a subject-specific subscription database. Points of consideration included document type, availability of full-text materials, local availability of materials (either in print or online), and relevance of materials to the research topics. Results showed that Google Scholar, while a substantive supplementary research tool, does not provide the same quality in terms of relevance for many research topics.

Theme

Suchmaschinen

Object

Google Scholar

Similar documents (content)

1. Arendt, J.: Imperfect tools : Google Scholar vs. traditional commercial library databases (2008) 0.36

   0.36309114 = sum of:
     0.36309114 = product of:
       3.0257597 = sum of:
         0.84571844 = weight(abstract_txt:subscription in 802) [ClassicSimilarity], result of:
           0.84571844 = score(doc=802,freq=1.0), product of:
             0.29646546 = queryWeight, product of:
               2.626141 = boost
               7.607123 = idf(docFreq=59, maxDocs=44421)
               0.01484006 = queryNorm
             2.8526711 = fieldWeight in 802, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               7.607123 = idf(docFreq=59, maxDocs=44421)
               0.375 = fieldNorm(doc=802)
         0.5926349 = weight(abstract_txt:google in 802) [ClassicSimilarity], result of:
           0.5926349 = score(doc=802,freq=1.0), product of:
             0.29468524 = queryWeight, product of:
               3.702757 = boost
               5.3628736 = idf(docFreq=565, maxDocs=44421)
               0.01484006 = queryNorm
             2.0110776 = fieldWeight in 802, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.3628736 = idf(docFreq=565, maxDocs=44421)
               0.375 = fieldNorm(doc=802)
         1.5874063 = weight(abstract_txt:scholar in 802) [ClassicSimilarity], result of:
           1.5874063 = score(doc=802,freq=1.0), product of:
             0.6122502 = queryWeight, product of:
               5.9671297 = boost
               6.9139757 = idf(docFreq=119, maxDocs=44421)
               0.01484006 = queryNorm
             2.592741 = fieldWeight in 802, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               6.9139757 = idf(docFreq=119, maxDocs=44421)
               0.375 = fieldNorm(doc=802)
       0.12 = coord(3/25)
   

2. Mejer, J.J.; Conkling, T.W.: Google Scholar's coverage of the engineering literature : an empirical study (2008) 0.33

   0.3349731 = sum of:
     0.3349731 = product of:
       1.3957213 = sum of:
         0.078457616 = weight(abstract_txt:searched in 4226) [ClassicSimilarity], result of:
           0.078457616 = score(doc=4226,freq=1.0), product of:
             0.10964255 = queryWeight, product of:
               1.1292902 = boost
               6.5424123 = idf(docFreq=173, maxDocs=44421)
               0.01484006 = queryNorm
             0.71557635 = fieldWeight in 4226, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               6.5424123 = idf(docFreq=173, maxDocs=44421)
               0.109375 = fieldNorm(doc=4226)
         0.043977994 = weight(abstract_txt:database in 4226) [ClassicSimilarity], result of:
           0.043977994 = score(doc=4226,freq=1.0), product of:
             0.09391234 = queryWeight, product of:
               1.4780608 = boost
               4.2814875 = idf(docFreq=1668, maxDocs=44421)
               0.01484006 = queryNorm
             0.4682877 = fieldWeight in 4226, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.2814875 = idf(docFreq=1668, maxDocs=44421)
               0.109375 = fieldNorm(doc=4226)
         0.21934518 = weight(abstract_txt:premier in 4226) [ClassicSimilarity], result of:
           0.21934518 = score(doc=4226,freq=1.0), product of:
             0.21759109 = queryWeight, product of:
               1.5908768 = boost
               9.216561 = idf(docFreq=11, maxDocs=44421)
               0.01484006 = queryNorm
             1.0080614 = fieldWeight in 4226, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               9.216561 = idf(docFreq=11, maxDocs=44421)
               0.109375 = fieldNorm(doc=4226)
         0.09978082 = weight(abstract_txt:materials in 4226) [ClassicSimilarity], result of:
           0.09978082 = score(doc=4226,freq=1.0), product of:
             0.18562117 = queryWeight, product of:
               2.545015 = boost
               4.9147506 = idf(docFreq=885, maxDocs=44421)
               0.01484006 = queryNorm
             0.53755087 = fieldWeight in 4226, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.9147506 = idf(docFreq=885, maxDocs=44421)
               0.109375 = fieldNorm(doc=4226)
         0.29938817 = weight(abstract_txt:google in 4226) [ClassicSimilarity], result of:
           0.29938817 = score(doc=4226,freq=3.0), product of:
             0.29468524 = queryWeight, product of:
               3.702757 = boost
               5.3628736 = idf(docFreq=565, maxDocs=44421)
               0.01484006 = queryNorm
             1.0159591 = fieldWeight in 4226, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               5.3628736 = idf(docFreq=565, maxDocs=44421)
               0.109375 = fieldNorm(doc=4226)
         0.65477157 = weight(abstract_txt:scholar in 4226) [ClassicSimilarity], result of:
           0.65477157 = score(doc=4226,freq=2.0), product of:
             0.6122502 = queryWeight, product of:
               5.9671297 = boost
               6.9139757 = idf(docFreq=119, maxDocs=44421)
               0.01484006 = queryNorm
             1.069451 = fieldWeight in 4226, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               6.9139757 = idf(docFreq=119, maxDocs=44421)
               0.109375 = fieldNorm(doc=4226)
       0.24 = coord(6/25)
   

3. Delgado-Quirós, L.; Aguillo, I.F.; Martín-Martín, A.; López-Cózar, E.D.; Orduña-Malea, E.; Ortega, J.L.: Why are these publications missing? : uncovering the reasons behind the exclusion of documents in free-access scholarly databases (2024) 0.18

   0.17817079 = sum of:
     0.17817079 = product of:
       0.8908539 = sum of:
         0.035539582 = weight(abstract_txt:database in 2203) [ClassicSimilarity], result of:
           0.035539582 = score(doc=2203,freq=2.0), product of:
             0.09391234 = queryWeight, product of:
               1.4780608 = boost
               4.2814875 = idf(docFreq=1668, maxDocs=44421)
               0.01484006 = queryNorm
             0.3784336 = fieldWeight in 2203, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               4.2814875 = idf(docFreq=1668, maxDocs=44421)
               0.0625 = fieldNorm(doc=2203)
         0.04554047 = weight(abstract_txt:does in 2203) [ClassicSimilarity], result of:
           0.04554047 = score(doc=2203,freq=1.0), product of:
             0.13959058 = queryWeight, product of:
               1.8020177 = boost
               5.2198906 = idf(docFreq=652, maxDocs=44421)
               0.01484006 = queryNorm
             0.32624316 = fieldWeight in 2203, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.2198906 = idf(docFreq=652, maxDocs=44421)
               0.0625 = fieldNorm(doc=2203)
         0.14095308 = weight(abstract_txt:subscription in 2203) [ClassicSimilarity], result of:
           0.14095308 = score(doc=2203,freq=1.0), product of:
             0.29646546 = queryWeight, product of:
               2.626141 = boost
               7.607123 = idf(docFreq=59, maxDocs=44421)
               0.01484006 = queryNorm
             0.47544518 = fieldWeight in 2203, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               7.607123 = idf(docFreq=59, maxDocs=44421)
               0.0625 = fieldNorm(doc=2203)
         0.13968538 = weight(abstract_txt:google in 2203) [ClassicSimilarity], result of:
           0.13968538 = score(doc=2203,freq=2.0), product of:
             0.29468524 = queryWeight, product of:
               3.702757 = boost
               5.3628736 = idf(docFreq=565, maxDocs=44421)
               0.01484006 = queryNorm
             0.47401553 = fieldWeight in 2203, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               5.3628736 = idf(docFreq=565, maxDocs=44421)
               0.0625 = fieldNorm(doc=2203)
         0.5291354 = weight(abstract_txt:scholar in 2203) [ClassicSimilarity], result of:
           0.5291354 = score(doc=2203,freq=4.0), product of:
             0.6122502 = queryWeight, product of:
               5.9671297 = boost
               6.9139757 = idf(docFreq=119, maxDocs=44421)
               0.01484006 = queryNorm
             0.86424696 = fieldWeight in 2203, product of:
               2.0 = tf(freq=4.0), with freq of:
                 4.0 = termFreq=4.0
               6.9139757 = idf(docFreq=119, maxDocs=44421)
               0.0625 = fieldNorm(doc=2203)
       0.2 = coord(5/25)
   

4. Kousha, K.; Thelwall, M.: Google Scholar citations and Google Web/URL citations : a multi-discipline exploratory analysis (2007) 0.17

   0.16620499 = sum of:
     0.16620499 = product of:
       1.0387812 = sum of:
         0.022284232 = weight(abstract_txt:online in 1337) [ClassicSimilarity], result of:
           0.022284232 = score(doc=1337,freq=2.0), product of:
             0.068798594 = queryWeight, product of:
               1.2650881 = boost
               3.6645708 = idf(docFreq=3092, maxDocs=44421)
               0.01484006 = queryNorm
             0.32390535 = fieldWeight in 1337, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               3.6645708 = idf(docFreq=3092, maxDocs=44421)
               0.0625 = fieldNorm(doc=1337)
         0.020199105 = weight(abstract_txt:research in 1337) [ClassicSimilarity], result of:
           0.020199105 = score(doc=1337,freq=1.0), product of:
             0.102287486 = queryWeight, product of:
               2.1815102 = boost
               3.159582 = idf(docFreq=5124, maxDocs=44421)
               0.01484006 = queryNorm
             0.19747387 = fieldWeight in 1337, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               3.159582 = idf(docFreq=5124, maxDocs=44421)
               0.0625 = fieldNorm(doc=1337)
         0.29631746 = weight(abstract_txt:google in 1337) [ClassicSimilarity], result of:
           0.29631746 = score(doc=1337,freq=9.0), product of:
             0.29468524 = queryWeight, product of:
               3.702757 = boost
               5.3628736 = idf(docFreq=565, maxDocs=44421)
               0.01484006 = queryNorm
             1.0055388 = fieldWeight in 1337, product of:
               3.0 = tf(freq=9.0), with freq of:
                 9.0 = termFreq=9.0
               5.3628736 = idf(docFreq=565, maxDocs=44421)
               0.0625 = fieldNorm(doc=1337)
         0.6999803 = weight(abstract_txt:scholar in 1337) [ClassicSimilarity], result of:
           0.6999803 = score(doc=1337,freq=7.0), product of:
             0.6122502 = queryWeight, product of:
               5.9671297 = boost
               6.9139757 = idf(docFreq=119, maxDocs=44421)
               0.01484006 = queryNorm
             1.1432912 = fieldWeight in 1337, product of:
               2.6457512 = tf(freq=7.0), with freq of:
                 7.0 = termFreq=7.0
               6.9139757 = idf(docFreq=119, maxDocs=44421)
               0.0625 = fieldNorm(doc=1337)
       0.16 = coord(4/25)
   

5. Donlan, R.; Cooke, R.: Running with the devil : accessing library-licensed full text holdings through Google Scholar (2005) 0.16

   0.16342777 = sum of:
     0.16342777 = product of:
       1.3618981 = sum of:
         0.09020741 = weight(abstract_txt:catalog in 1363) [ClassicSimilarity], result of:
           0.09020741 = score(doc=1363,freq=1.0), product of:
             0.15160978 = queryWeight, product of:
               1.8779957 = boost
               5.4399757 = idf(docFreq=523, maxDocs=44421)
               0.01484006 = queryNorm
             0.59499735 = fieldWeight in 1363, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.4399757 = idf(docFreq=523, maxDocs=44421)
               0.109375 = fieldNorm(doc=1363)
         0.3457037 = weight(abstract_txt:google in 1363) [ClassicSimilarity], result of:
           0.3457037 = score(doc=1363,freq=4.0), product of:
             0.29468524 = queryWeight, product of:
               3.702757 = boost
               5.3628736 = idf(docFreq=565, maxDocs=44421)
               0.01484006 = queryNorm
             1.1731286 = fieldWeight in 1363, product of:
               2.0 = tf(freq=4.0), with freq of:
                 4.0 = termFreq=4.0
               5.3628736 = idf(docFreq=565, maxDocs=44421)
               0.109375 = fieldNorm(doc=1363)
         0.92598695 = weight(abstract_txt:scholar in 1363) [ClassicSimilarity], result of:
           0.92598695 = score(doc=1363,freq=4.0), product of:
             0.6122502 = queryWeight, product of:
               5.9671297 = boost
               6.9139757 = idf(docFreq=119, maxDocs=44421)
               0.01484006 = queryNorm
             1.5124322 = fieldWeight in 1363, product of:
               2.0 = tf(freq=4.0), with freq of:
                 4.0 = termFreq=4.0
               6.9139757 = idf(docFreq=119, maxDocs=44421)
               0.109375 = fieldNorm(doc=1363)
       0.12 = coord(3/25)