-
Jacobs, M.: Criteria for evaluating alternative MEDLINE search engines (1998)
0.01
0.010250697 = product of:
0.035877436 = sum of:
0.02391829 = weight(_text_:j in 3264) [ClassicSimilarity], result of:
0.02391829 = score(doc=3264,freq=2.0), product of:
0.09732894 = queryWeight, product of:
3.1774964 = idf(docFreq=5010, maxDocs=44218)
0.030630698 = queryNorm
0.24574696 = fieldWeight in 3264, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.1774964 = idf(docFreq=5010, maxDocs=44218)
0.0546875 = fieldNorm(doc=3264)
0.011959145 = product of:
0.02391829 = sum of:
0.02391829 = weight(_text_:j in 3264) [ClassicSimilarity], result of:
0.02391829 = score(doc=3264,freq=2.0), product of:
0.09732894 = queryWeight, product of:
3.1774964 = idf(docFreq=5010, maxDocs=44218)
0.030630698 = queryNorm
0.24574696 = fieldWeight in 3264, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.1774964 = idf(docFreq=5010, maxDocs=44218)
0.0546875 = fieldNorm(doc=3264)
0.5 = coord(1/2)
0.2857143 = coord(2/7)
- Abstract
- Reports results of a study, undertaken at the J. Otto Lottes Health Sciences Library, Missouri University at Columbia, to derive a set of evaluation criteria to assist librarians in determining the positive and negative aspects of alternative Web sites available for searching MEDLINE via the WWW. A set of searches were used systematically to compare MEDLINE Web sites, including: Avicenna; America Online; HealthGate; PubMed; Medscape; and Physicians' Online. Focuses on the principle features of the search engines used in the sites: default fields and operators; MeSH; subheadings; stopwords protected in MeSH; truncation and stemming. Describes the group processes used to arrive at the evaluation criteria and some general conclusions which will help librarians in directing their users to a particular MEDLINE site
-
Wegner, J.: Recherche online : Ein Handbuch für Journalisten (1998)
0.01
0.010250697 = product of:
0.035877436 = sum of:
0.02391829 = weight(_text_:j in 3317) [ClassicSimilarity], result of:
0.02391829 = score(doc=3317,freq=2.0), product of:
0.09732894 = queryWeight, product of:
3.1774964 = idf(docFreq=5010, maxDocs=44218)
0.030630698 = queryNorm
0.24574696 = fieldWeight in 3317, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.1774964 = idf(docFreq=5010, maxDocs=44218)
0.0546875 = fieldNorm(doc=3317)
0.011959145 = product of:
0.02391829 = sum of:
0.02391829 = weight(_text_:j in 3317) [ClassicSimilarity], result of:
0.02391829 = score(doc=3317,freq=2.0), product of:
0.09732894 = queryWeight, product of:
3.1774964 = idf(docFreq=5010, maxDocs=44218)
0.030630698 = queryNorm
0.24574696 = fieldWeight in 3317, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.1774964 = idf(docFreq=5010, maxDocs=44218)
0.0546875 = fieldNorm(doc=3317)
0.5 = coord(1/2)
0.2857143 = coord(2/7)
-
Gernert, J.: Googles Gegner : Jime Wales, Mitgründer von Wikipedia, drängt mit einer eigenen Suchmaschine ins Netz (2007)
0.00
0.0043931557 = product of:
0.015376044 = sum of:
0.010250696 = weight(_text_:j in 4822) [ClassicSimilarity], result of:
0.010250696 = score(doc=4822,freq=2.0), product of:
0.09732894 = queryWeight, product of:
3.1774964 = idf(docFreq=5010, maxDocs=44218)
0.030630698 = queryNorm
0.105320126 = fieldWeight in 4822, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.1774964 = idf(docFreq=5010, maxDocs=44218)
0.0234375 = fieldNorm(doc=4822)
0.005125348 = product of:
0.010250696 = sum of:
0.010250696 = weight(_text_:j in 4822) [ClassicSimilarity], result of:
0.010250696 = score(doc=4822,freq=2.0), product of:
0.09732894 = queryWeight, product of:
3.1774964 = idf(docFreq=5010, maxDocs=44218)
0.030630698 = queryNorm
0.105320126 = fieldWeight in 4822, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.1774964 = idf(docFreq=5010, maxDocs=44218)
0.0234375 = fieldNorm(doc=4822)
0.5 = coord(1/2)
0.2857143 = coord(2/7)
-
MacLeod, R.: Promoting a subject gateway : a case study from EEVL (Edinburgh Engineering Virtual Library) (2000)
0.00
0.0041921707 = product of:
0.029345192 = sum of:
0.029345192 = product of:
0.058690384 = sum of:
0.058690384 = weight(_text_:22 in 4872) [ClassicSimilarity], result of:
0.058690384 = score(doc=4872,freq=4.0), product of:
0.10726349 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.030630698 = queryNorm
0.54716086 = fieldWeight in 4872, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.078125 = fieldNorm(doc=4872)
0.5 = coord(1/2)
0.14285715 = coord(1/7)
- Date
- 22. 6.2002 19:40:22
-
Hannemann, M.: Online ins Schlaraffenland der Wissenschaft : Literatur-Recherche im Internet ist ein teures Unterfangen ohne Erfolgsgarantie - Doch wer systematisch sucht, gelangt zügig ans Ziel (1999)
0.00
0.0035571745 = product of:
0.02490022 = sum of:
0.02490022 = product of:
0.04980044 = sum of:
0.04980044 = weight(_text_:22 in 3106) [ClassicSimilarity], result of:
0.04980044 = score(doc=3106,freq=2.0), product of:
0.10726349 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.030630698 = queryNorm
0.46428138 = fieldWeight in 3106, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.09375 = fieldNorm(doc=3106)
0.5 = coord(1/2)
0.14285715 = coord(1/7)
- Date
- 3. 5.1997 8:44:22
-
Price, A.: Five new Danish subject gateways under development (2000)
0.00
0.0029643124 = product of:
0.020750185 = sum of:
0.020750185 = product of:
0.04150037 = sum of:
0.04150037 = weight(_text_:22 in 4878) [ClassicSimilarity], result of:
0.04150037 = score(doc=4878,freq=2.0), product of:
0.10726349 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.030630698 = queryNorm
0.38690117 = fieldWeight in 4878, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.078125 = fieldNorm(doc=4878)
0.5 = coord(1/2)
0.14285715 = coord(1/7)
- Date
- 22. 6.2002 19:41:31
-
Campbell, D.: Australian subject gateways : political and strategic issues (2000)
0.00
0.0023714497 = product of:
0.016600147 = sum of:
0.016600147 = product of:
0.033200294 = sum of:
0.033200294 = weight(_text_:22 in 4875) [ClassicSimilarity], result of:
0.033200294 = score(doc=4875,freq=2.0), product of:
0.10726349 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.030630698 = queryNorm
0.30952093 = fieldWeight in 4875, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.0625 = fieldNorm(doc=4875)
0.5 = coord(1/2)
0.14285715 = coord(1/7)
- Date
- 22. 6.2002 19:41:16
-
Dempsey, L.: ¬The subject gateway : experiences and issues based on the emergence of the Resource Discovery Network (2000)
0.00
0.0023714497 = product of:
0.016600147 = sum of:
0.016600147 = product of:
0.033200294 = sum of:
0.033200294 = weight(_text_:22 in 628) [ClassicSimilarity], result of:
0.033200294 = score(doc=628,freq=2.0), product of:
0.10726349 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.030630698 = queryNorm
0.30952093 = fieldWeight in 628, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.0625 = fieldNorm(doc=628)
0.5 = coord(1/2)
0.14285715 = coord(1/7)
- Date
- 22. 6.2002 19:36:13
-
Price, A.: NOVAGate : a Nordic gateway to electronic resources in the forestry, veterinary and agricultural sciences (2000)
0.00
0.0020750186 = product of:
0.014525129 = sum of:
0.014525129 = product of:
0.029050259 = sum of:
0.029050259 = weight(_text_:22 in 4874) [ClassicSimilarity], result of:
0.029050259 = score(doc=4874,freq=2.0), product of:
0.10726349 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.030630698 = queryNorm
0.2708308 = fieldWeight in 4874, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.0546875 = fieldNorm(doc=4874)
0.5 = coord(1/2)
0.14285715 = coord(1/7)
- Date
- 22. 6.2002 19:41:00
-
Koch, T.: Quality-controlled subject gateways : definitions, typologies, empirical overview (2000)
0.00
0.0020750186 = product of:
0.014525129 = sum of:
0.014525129 = product of:
0.029050259 = sum of:
0.029050259 = weight(_text_:22 in 631) [ClassicSimilarity], result of:
0.029050259 = score(doc=631,freq=2.0), product of:
0.10726349 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.030630698 = queryNorm
0.2708308 = fieldWeight in 631, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.0546875 = fieldNorm(doc=631)
0.5 = coord(1/2)
0.14285715 = coord(1/7)
- Date
- 22. 6.2002 19:37:55
-
Fischer, T.; Neuroth, H.: SSG-FI - special subject gateways to high quality Internet resources for scientific users (2000)
0.00
0.0017785872 = product of:
0.01245011 = sum of:
0.01245011 = product of:
0.02490022 = sum of:
0.02490022 = weight(_text_:22 in 4873) [ClassicSimilarity], result of:
0.02490022 = score(doc=4873,freq=2.0), product of:
0.10726349 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.030630698 = queryNorm
0.23214069 = fieldWeight in 4873, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.046875 = fieldNorm(doc=4873)
0.5 = coord(1/2)
0.14285715 = coord(1/7)
- Date
- 22. 6.2002 19:40:42