-
Nicolaisen, J.: Citation analysis (2007)
0.06
0.05828543 = product of:
0.11657086 = sum of:
0.11657086 = sum of:
0.016807998 = weight(_text_:e in 6091) [ClassicSimilarity], result of:
0.016807998 = score(doc=6091,freq=2.0), product of:
0.06614887 = queryWeight, product of:
1.43737 = idf(docFreq=28552, maxDocs=44218)
0.04602077 = queryNorm
0.2540935 = fieldWeight in 6091, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
1.43737 = idf(docFreq=28552, maxDocs=44218)
0.125 = fieldNorm(doc=6091)
0.099762864 = weight(_text_:22 in 6091) [ClassicSimilarity], result of:
0.099762864 = score(doc=6091,freq=2.0), product of:
0.1611569 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.04602077 = queryNorm
0.61904186 = fieldWeight in 6091, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.125 = fieldNorm(doc=6091)
0.5 = coord(1/2)
- Date
- 13. 7.2008 19:53:22
- Language
- e
-
Døsen, K.: One more reference on self-reference (1992)
0.06
0.05828543 = product of:
0.11657086 = sum of:
0.11657086 = sum of:
0.016807998 = weight(_text_:e in 4604) [ClassicSimilarity], result of:
0.016807998 = score(doc=4604,freq=2.0), product of:
0.06614887 = queryWeight, product of:
1.43737 = idf(docFreq=28552, maxDocs=44218)
0.04602077 = queryNorm
0.2540935 = fieldWeight in 4604, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
1.43737 = idf(docFreq=28552, maxDocs=44218)
0.125 = fieldNorm(doc=4604)
0.099762864 = weight(_text_:22 in 4604) [ClassicSimilarity], result of:
0.099762864 = score(doc=4604,freq=2.0), product of:
0.1611569 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.04602077 = queryNorm
0.61904186 = fieldWeight in 4604, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.125 = fieldNorm(doc=4604)
0.5 = coord(1/2)
- Date
- 7. 2.2005 14:10:22
- Language
- e
-
Van der Veer Martens, B.: Do citation systems represent theories of truth? (2001)
0.05
0.049341872 = product of:
0.098683745 = sum of:
0.098683745 = sum of:
0.010504999 = weight(_text_:e in 3925) [ClassicSimilarity], result of:
0.010504999 = score(doc=3925,freq=2.0), product of:
0.06614887 = queryWeight, product of:
1.43737 = idf(docFreq=28552, maxDocs=44218)
0.04602077 = queryNorm
0.15880844 = fieldWeight in 3925, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
1.43737 = idf(docFreq=28552, maxDocs=44218)
0.078125 = fieldNorm(doc=3925)
0.08817875 = weight(_text_:22 in 3925) [ClassicSimilarity], result of:
0.08817875 = score(doc=3925,freq=4.0), product of:
0.1611569 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.04602077 = queryNorm
0.54716086 = fieldWeight in 3925, 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=3925)
0.5 = coord(1/2)
- Date
- 22. 7.2006 15:22:28
- Language
- e
-
Garfield, E.; Stock, W.G.: Citation Consciousness : Interview with Eugene Garfiels, chairman emeritus of ISI; Philadelphia (2002)
0.04
0.03860405 = product of:
0.0772081 = sum of:
0.0772081 = sum of:
0.0148563115 = weight(_text_:e in 613) [ClassicSimilarity], result of:
0.0148563115 = score(doc=613,freq=4.0), product of:
0.06614887 = queryWeight, product of:
1.43737 = idf(docFreq=28552, maxDocs=44218)
0.04602077 = queryNorm
0.22458905 = fieldWeight in 613, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
1.43737 = idf(docFreq=28552, maxDocs=44218)
0.078125 = fieldNorm(doc=613)
0.06235179 = weight(_text_:22 in 613) [ClassicSimilarity], result of:
0.06235179 = score(doc=613,freq=2.0), product of:
0.1611569 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.04602077 = queryNorm
0.38690117 = fieldWeight in 613, 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=613)
0.5 = coord(1/2)
- Biographed
- Garfield, E.
- Source
- Password. 2002, H.6, S.22-25
-
Larivière, V.; Gingras, Y.; Archambault, E.: ¬The decline in the concentration of citations, 1900-2007 (2009)
0.03
0.030910518 = product of:
0.061821036 = sum of:
0.061821036 = sum of:
0.008913787 = weight(_text_:e in 2763) [ClassicSimilarity], result of:
0.008913787 = score(doc=2763,freq=4.0), product of:
0.06614887 = queryWeight, product of:
1.43737 = idf(docFreq=28552, maxDocs=44218)
0.04602077 = queryNorm
0.13475344 = fieldWeight in 2763, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
1.43737 = idf(docFreq=28552, maxDocs=44218)
0.046875 = fieldNorm(doc=2763)
0.05290725 = weight(_text_:22 in 2763) [ClassicSimilarity], result of:
0.05290725 = score(doc=2763,freq=4.0), product of:
0.1611569 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.04602077 = queryNorm
0.32829654 = fieldWeight in 2763, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.046875 = fieldNorm(doc=2763)
0.5 = coord(1/2)
- Date
- 22. 3.2009 19:22:35
- Language
- e
-
Bensman, S.J.: Eugene Garfield, Francis Narin, and PageRank : the theoretical bases of the Google search engine (2013)
0.03
0.029142715 = product of:
0.05828543 = sum of:
0.05828543 = sum of:
0.008403999 = weight(_text_:e in 1149) [ClassicSimilarity], result of:
0.008403999 = score(doc=1149,freq=2.0), product of:
0.06614887 = queryWeight, product of:
1.43737 = idf(docFreq=28552, maxDocs=44218)
0.04602077 = queryNorm
0.12704675 = fieldWeight in 1149, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
1.43737 = idf(docFreq=28552, maxDocs=44218)
0.0625 = fieldNorm(doc=1149)
0.049881432 = weight(_text_:22 in 1149) [ClassicSimilarity], result of:
0.049881432 = score(doc=1149,freq=2.0), product of:
0.1611569 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.04602077 = queryNorm
0.30952093 = fieldWeight in 1149, 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=1149)
0.5 = coord(1/2)
- Date
- 17.12.2013 11:02:22
- Language
- e
-
Garfield, E.: Recollections of Irving H. Sher 1924-1996 : Polymath/information scientist extraordinaire (2001)
0.03
0.027022835 = product of:
0.05404567 = sum of:
0.05404567 = sum of:
0.010399418 = weight(_text_:e in 6920) [ClassicSimilarity], result of:
0.010399418 = score(doc=6920,freq=4.0), product of:
0.06614887 = queryWeight, product of:
1.43737 = idf(docFreq=28552, maxDocs=44218)
0.04602077 = queryNorm
0.15721233 = fieldWeight in 6920, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
1.43737 = idf(docFreq=28552, maxDocs=44218)
0.0546875 = fieldNorm(doc=6920)
0.043646254 = weight(_text_:22 in 6920) [ClassicSimilarity], result of:
0.043646254 = score(doc=6920,freq=2.0), product of:
0.1611569 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.04602077 = queryNorm
0.2708308 = fieldWeight in 6920, 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=6920)
0.5 = coord(1/2)
- Date
- 16.12.2001 14:01:22
- Language
- e
-
Van der Veer Martens, B.; Goodrum, G.: ¬The diffusion of theories : a functional approach (2006)
0.03
0.025499877 = product of:
0.050999753 = sum of:
0.050999753 = sum of:
0.007353499 = weight(_text_:e in 5269) [ClassicSimilarity], result of:
0.007353499 = score(doc=5269,freq=2.0), product of:
0.06614887 = queryWeight, product of:
1.43737 = idf(docFreq=28552, maxDocs=44218)
0.04602077 = queryNorm
0.1111659 = fieldWeight in 5269, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
1.43737 = idf(docFreq=28552, maxDocs=44218)
0.0546875 = fieldNorm(doc=5269)
0.043646254 = weight(_text_:22 in 5269) [ClassicSimilarity], result of:
0.043646254 = score(doc=5269,freq=2.0), product of:
0.1611569 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.04602077 = queryNorm
0.2708308 = fieldWeight in 5269, 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=5269)
0.5 = coord(1/2)
- Date
- 22. 7.2006 15:20:01
- Language
- e
-
Tay, A.: ¬The next generation discovery citation indexes : a review of the landscape in 2020 (2020)
0.03
0.025499877 = product of:
0.050999753 = sum of:
0.050999753 = sum of:
0.007353499 = weight(_text_:e in 40) [ClassicSimilarity], result of:
0.007353499 = score(doc=40,freq=2.0), product of:
0.06614887 = queryWeight, product of:
1.43737 = idf(docFreq=28552, maxDocs=44218)
0.04602077 = queryNorm
0.1111659 = fieldWeight in 40, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
1.43737 = idf(docFreq=28552, maxDocs=44218)
0.0546875 = fieldNorm(doc=40)
0.043646254 = weight(_text_:22 in 40) [ClassicSimilarity], result of:
0.043646254 = score(doc=40,freq=2.0), product of:
0.1611569 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.04602077 = queryNorm
0.2708308 = fieldWeight in 40, 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=40)
0.5 = coord(1/2)
- Date
- 17.11.2020 12:22:59
- Language
- e
-
Campanario, J.M.: Have referees rejected some of the most-cited articles of all times? (1996)
0.02
0.021857034 = product of:
0.04371407 = sum of:
0.04371407 = sum of:
0.006302999 = weight(_text_:e in 4215) [ClassicSimilarity], result of:
0.006302999 = score(doc=4215,freq=2.0), product of:
0.06614887 = queryWeight, product of:
1.43737 = idf(docFreq=28552, maxDocs=44218)
0.04602077 = queryNorm
0.09528506 = fieldWeight in 4215, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
1.43737 = idf(docFreq=28552, maxDocs=44218)
0.046875 = fieldNorm(doc=4215)
0.03741107 = weight(_text_:22 in 4215) [ClassicSimilarity], result of:
0.03741107 = score(doc=4215,freq=2.0), product of:
0.1611569 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.04602077 = queryNorm
0.23214069 = fieldWeight in 4215, 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=4215)
0.5 = coord(1/2)
- Abstract
- In this article a quantitative study is reported on the resistance that scientists may encounter when they do innovative work or when they attempt to publish articles that later become highly cited. A set of 205 commentaries by authors of some of the most-cited papers of all times have been examined in order to identify those articles whose authors encountered difficulty in getting his or her work published. There are 22 commentaries (10,7%) in which authors mention some difficulty or resistance in doing or publishing the research reported in the article. Three of the articles which had problems in being published are the most cited from their respective journals. According the authors' commentaries, although sometimes referees' negative evaluations can help improve the articles, in other instances referees and editors wrongly rejected the highly cited articles
- Language
- e
-
Snyder, H.; Bonzi, S.: Patterns of self-citation across disciplines : 1980-1989 (1998)
0.02
0.021857034 = product of:
0.04371407 = sum of:
0.04371407 = sum of:
0.006302999 = weight(_text_:e in 3692) [ClassicSimilarity], result of:
0.006302999 = score(doc=3692,freq=2.0), product of:
0.06614887 = queryWeight, product of:
1.43737 = idf(docFreq=28552, maxDocs=44218)
0.04602077 = queryNorm
0.09528506 = fieldWeight in 3692, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
1.43737 = idf(docFreq=28552, maxDocs=44218)
0.046875 = fieldNorm(doc=3692)
0.03741107 = weight(_text_:22 in 3692) [ClassicSimilarity], result of:
0.03741107 = score(doc=3692,freq=2.0), product of:
0.1611569 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.04602077 = queryNorm
0.23214069 = fieldWeight in 3692, 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=3692)
0.5 = coord(1/2)
- Date
- 22. 5.1999 19:33:24
- Language
- e
-
Chan, H.C.; Kim, H.-W.; Tan, W.C.: Information systems citation patterns from International Conference on Information Systems articles (2006)
0.02
0.021857034 = product of:
0.04371407 = sum of:
0.04371407 = sum of:
0.006302999 = weight(_text_:e in 201) [ClassicSimilarity], result of:
0.006302999 = score(doc=201,freq=2.0), product of:
0.06614887 = queryWeight, product of:
1.43737 = idf(docFreq=28552, maxDocs=44218)
0.04602077 = queryNorm
0.09528506 = fieldWeight in 201, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
1.43737 = idf(docFreq=28552, maxDocs=44218)
0.046875 = fieldNorm(doc=201)
0.03741107 = weight(_text_:22 in 201) [ClassicSimilarity], result of:
0.03741107 = score(doc=201,freq=2.0), product of:
0.1611569 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.04602077 = queryNorm
0.23214069 = fieldWeight in 201, 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=201)
0.5 = coord(1/2)
- Date
- 3. 1.2007 17:22:03
- Language
- e
-
Mingers, J.; Burrell, Q.L.: Modeling citation behavior in Management Science journals (2006)
0.02
0.021857034 = product of:
0.04371407 = sum of:
0.04371407 = sum of:
0.006302999 = weight(_text_:e in 994) [ClassicSimilarity], result of:
0.006302999 = score(doc=994,freq=2.0), product of:
0.06614887 = queryWeight, product of:
1.43737 = idf(docFreq=28552, maxDocs=44218)
0.04602077 = queryNorm
0.09528506 = fieldWeight in 994, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
1.43737 = idf(docFreq=28552, maxDocs=44218)
0.046875 = fieldNorm(doc=994)
0.03741107 = weight(_text_:22 in 994) [ClassicSimilarity], result of:
0.03741107 = score(doc=994,freq=2.0), product of:
0.1611569 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.04602077 = queryNorm
0.23214069 = fieldWeight in 994, 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=994)
0.5 = coord(1/2)
- Date
- 26.12.2007 19:22:05
- Language
- e
-
Ma, N.; Guan, J.; Zhao, Y.: Bringing PageRank to the citation analysis (2008)
0.02
0.021857034 = product of:
0.04371407 = sum of:
0.04371407 = sum of:
0.006302999 = weight(_text_:e in 2064) [ClassicSimilarity], result of:
0.006302999 = score(doc=2064,freq=2.0), product of:
0.06614887 = queryWeight, product of:
1.43737 = idf(docFreq=28552, maxDocs=44218)
0.04602077 = queryNorm
0.09528506 = fieldWeight in 2064, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
1.43737 = idf(docFreq=28552, maxDocs=44218)
0.046875 = fieldNorm(doc=2064)
0.03741107 = weight(_text_:22 in 2064) [ClassicSimilarity], result of:
0.03741107 = score(doc=2064,freq=2.0), product of:
0.1611569 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.04602077 = queryNorm
0.23214069 = fieldWeight in 2064, 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=2064)
0.5 = coord(1/2)
- Date
- 31. 7.2008 14:22:05
- Language
- e
-
Ding, Y.; Zhang, G.; Chambers, T.; Song, M.; Wang, X.; Zhai, C.: Content-based citation analysis : the next generation of citation analysis (2014)
0.02
0.021857034 = product of:
0.04371407 = sum of:
0.04371407 = sum of:
0.006302999 = weight(_text_:e in 1521) [ClassicSimilarity], result of:
0.006302999 = score(doc=1521,freq=2.0), product of:
0.06614887 = queryWeight, product of:
1.43737 = idf(docFreq=28552, maxDocs=44218)
0.04602077 = queryNorm
0.09528506 = fieldWeight in 1521, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
1.43737 = idf(docFreq=28552, maxDocs=44218)
0.046875 = fieldNorm(doc=1521)
0.03741107 = weight(_text_:22 in 1521) [ClassicSimilarity], result of:
0.03741107 = score(doc=1521,freq=2.0), product of:
0.1611569 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.04602077 = queryNorm
0.23214069 = fieldWeight in 1521, 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=1521)
0.5 = coord(1/2)
- Date
- 22. 8.2014 16:52:04
- Language
- e
-
Ahlgren, P.; Jarneving, B.; Rousseau, R.: Requirements for a cocitation similarity measure, with special reference to Pearson's correlation coefficient (2003)
0.02
0.015441621 = product of:
0.030883241 = sum of:
0.030883241 = sum of:
0.005942525 = weight(_text_:e in 5171) [ClassicSimilarity], result of:
0.005942525 = score(doc=5171,freq=4.0), product of:
0.06614887 = queryWeight, product of:
1.43737 = idf(docFreq=28552, maxDocs=44218)
0.04602077 = queryNorm
0.08983562 = fieldWeight in 5171, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
1.43737 = idf(docFreq=28552, maxDocs=44218)
0.03125 = fieldNorm(doc=5171)
0.024940716 = weight(_text_:22 in 5171) [ClassicSimilarity], result of:
0.024940716 = score(doc=5171,freq=2.0), product of:
0.1611569 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.04602077 = queryNorm
0.15476047 = fieldWeight in 5171, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.03125 = fieldNorm(doc=5171)
0.5 = coord(1/2)
- Abstract
- Ahlgren, Jarneving, and. Rousseau review accepted procedures for author co-citation analysis first pointing out that since in the raw data matrix the row and column values are identical i,e, the co-citation count of two authors, there is no clear choice for diagonal values. They suggest the number of times an author has been co-cited with himself excluding self citation rather than the common treatment as zeros or as missing values. When the matrix is converted to a similarity matrix the normal procedure is to create a matrix of Pearson's r coefficients between data vectors. Ranking by r and by co-citation frequency and by intuition can easily yield three different orders. It would seem necessary that the adding of zeros to the matrix will not affect the value or the relative order of similarity measures but it is shown that this is not the case with Pearson's r. Using 913 bibliographic descriptions form the Web of Science of articles form JASIS and Scientometrics, authors names were extracted, edited and 12 information retrieval authors and 12 bibliometric authors each from the top 100 most cited were selected. Co-citation and r value (diagonal elements treated as missing) matrices were constructed, and then reconstructed in expanded form. Adding zeros can both change the r value and the ordering of the authors based upon that value. A chi-squared distance measure would not violate these requirements, nor would the cosine coefficient. It is also argued that co-citation data is ordinal data since there is no assurance of an absolute zero number of co-citations, and thus Pearson is not appropriate. The number of ties in co-citation data make the use of the Spearman rank order coefficient problematic.
- Date
- 9. 7.2006 10:22:35
- Language
- e
-
wst: Cut-and-paste-Wissenschaft (2003)
0.01
0.009352768 = product of:
0.018705536 = sum of:
0.018705536 = product of:
0.03741107 = sum of:
0.03741107 = weight(_text_:22 in 1270) [ClassicSimilarity], result of:
0.03741107 = score(doc=1270,freq=2.0), product of:
0.1611569 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.04602077 = queryNorm
0.23214069 = fieldWeight in 1270, 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=1270)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Content
- "Mikhail Simkin und Vwani Roychowdhury von der University of Califomia, Los Angeles, haben eine in der wissenschaftlichen Gemeinschaft verbreitete Unsitte erstmals quantitativ erfasst. Die Wissenschaftler analysierten die Verbreitung von Druckfehlern in den Literaturlisten wissenschaftlicher Arbeiten (www.arxiv.org/abs/cond-mat/0212043). 78 Prozent aller zitierten Aufsätze - so schätzen die Forscher - haben die zitierenden Wissenschaftler demnach nicht gelesen, sondern nur per 'cut and paste' von einer Vorlage in ihre eigene Literaturliste übernommen. Das könne man beispielsweise abschätzen aus der Analyse fehlerhafter Seitenangaben in der Literaturliste eines 1973 veröffentlichten Aufsatzes über die Struktur zweidimensionaler Kristalle: Dieser Aufsatz ist rund 4300 mal zitiert worden. In 196 Fällen enthalten die Zitate jedoch Fehler in der Jahreszahl, dem Band der Zeitschrift oder der Seitenzahl, die als Indikatoren für cut and paste genommen werden können, denn man kann, obwohl es Milliarden Möglichkeiten gibt, nur 45 verschiedene Arten von Druckfehlern unterscheiden. In erster Näherung ergibt sich eine Obergrenze für die Zahl der `echten Leser' daher aus der Zahl der unterscheidbaren Druckfehler (45) geteilt durch die Gesamtzahl der Publikationen mit Druckfehler (196), das macht etwa 22 Prozent."
-
H-Index auch im Web of Science (2008)
0.01
0.009352768 = product of:
0.018705536 = sum of:
0.018705536 = product of:
0.03741107 = sum of:
0.03741107 = weight(_text_:22 in 590) [ClassicSimilarity], result of:
0.03741107 = score(doc=590,freq=2.0), product of:
0.1611569 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.04602077 = queryNorm
0.23214069 = fieldWeight in 590, 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=590)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Date
- 6. 4.2008 19:04:22
-
Hayer, L.: Lazarsfeld zitiert : eine bibliometrische Analyse (2008)
0.01
0.0077939737 = product of:
0.015587947 = sum of:
0.015587947 = product of:
0.031175895 = sum of:
0.031175895 = weight(_text_:22 in 1934) [ClassicSimilarity], result of:
0.031175895 = score(doc=1934,freq=2.0), product of:
0.1611569 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.04602077 = queryNorm
0.19345059 = fieldWeight in 1934, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.0390625 = fieldNorm(doc=1934)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Date
- 22. 6.2008 12:54:12
-
Wildner, B.: Web of Science - Scopus : Auf der Suche nach Zitierungen (2006)
0.01
0.006235179 = product of:
0.012470358 = sum of:
0.012470358 = product of:
0.024940716 = sum of:
0.024940716 = weight(_text_:22 in 5034) [ClassicSimilarity], result of:
0.024940716 = score(doc=5034,freq=2.0), product of:
0.1611569 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.04602077 = queryNorm
0.15476047 = fieldWeight in 5034, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.03125 = fieldNorm(doc=5034)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Date
- 4. 6.2006 17:22:15
