-
Costas, R.; Zahedi, Z.; Wouters, P.: ¬The thematic orientation of publications mentioned on social media : large-scale disciplinary comparison of social media metrics with citations (2015)
0.02
0.01760727 = product of:
0.03521454 = sum of:
0.03521454 = product of:
0.052821808 = sum of:
0.020292813 = weight(_text_:12 in 2598) [ClassicSimilarity], result of:
0.020292813 = score(doc=2598,freq=2.0), product of:
0.13281173 = queryWeight, product of:
2.765864 = idf(docFreq=7562, maxDocs=44218)
0.048018172 = queryNorm
0.15279384 = fieldWeight in 2598, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
2.765864 = idf(docFreq=7562, maxDocs=44218)
0.0390625 = fieldNorm(doc=2598)
0.032528996 = weight(_text_:22 in 2598) [ClassicSimilarity], result of:
0.032528996 = score(doc=2598,freq=2.0), product of:
0.16815145 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.048018172 = queryNorm
0.19345059 = fieldWeight in 2598, 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=2598)
0.6666667 = coord(2/3)
0.5 = coord(1/2)
- Content
- Vgl.: https://doi.org/10.1108/AJIM-12-2014-0173.
- Date
- 20. 1.2015 18:30:22
-
Costas, R.; Bordons, M.; Leeuwen, T.N. van; Raan, A.F.J. van: Scaling rules in the science system : Influence of field-specific citation characteristics on the impact of individual researchers (2009)
0.01
0.0054214997 = product of:
0.010842999 = sum of:
0.010842999 = product of:
0.032528996 = sum of:
0.032528996 = weight(_text_:22 in 2759) [ClassicSimilarity], result of:
0.032528996 = score(doc=2759,freq=2.0), product of:
0.16815145 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.048018172 = queryNorm
0.19345059 = fieldWeight in 2759, 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=2759)
0.33333334 = coord(1/3)
0.5 = coord(1/2)
- Date
- 22. 3.2009 19:02:48
-
Costas, R.; Perianes-Rodríguez, A.; Ruiz-Castillo, J.: On the quest for currencies of science : field "exchange rates" for citations and Mendeley readership (2017)
0.00
0.0043372 = product of:
0.0086744 = sum of:
0.0086744 = product of:
0.026023198 = sum of:
0.026023198 = weight(_text_:22 in 4051) [ClassicSimilarity], result of:
0.026023198 = score(doc=4051,freq=2.0), product of:
0.16815145 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.048018172 = queryNorm
0.15476047 = fieldWeight in 4051, 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=4051)
0.33333334 = coord(1/3)
0.5 = coord(1/2)
- Date
- 20. 1.2015 18:30:22
-
Fang, Z.; Dudek, J.; Costas, R.: Facing the volatility of tweets in altmetric research (2022)
0.00
0.0040585627 = product of:
0.008117125 = sum of:
0.008117125 = product of:
0.024351375 = sum of:
0.024351375 = weight(_text_:12 in 605) [ClassicSimilarity], result of:
0.024351375 = score(doc=605,freq=2.0), product of:
0.13281173 = queryWeight, product of:
2.765864 = idf(docFreq=7562, maxDocs=44218)
0.048018172 = queryNorm
0.1833526 = fieldWeight in 605, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
2.765864 = idf(docFreq=7562, maxDocs=44218)
0.046875 = fieldNorm(doc=605)
0.33333334 = coord(1/3)
0.5 = coord(1/2)
- Date
- 12. 7.2022 13:52:08
-
Costas, R.; Leeuwen, T.N. van; Raan, A.F.J. van: Is scientific literature subject to a 'Sell-By-Date'? : a general methodology to analyze the 'durability' of scientific documents (2010)
0.00
0.0033821356 = product of:
0.0067642713 = sum of:
0.0067642713 = product of:
0.020292813 = sum of:
0.020292813 = weight(_text_:12 in 3333) [ClassicSimilarity], result of:
0.020292813 = score(doc=3333,freq=2.0), product of:
0.13281173 = queryWeight, product of:
2.765864 = idf(docFreq=7562, maxDocs=44218)
0.048018172 = queryNorm
0.15279384 = fieldWeight in 3333, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
2.765864 = idf(docFreq=7562, maxDocs=44218)
0.0390625 = fieldNorm(doc=3333)
0.33333334 = coord(1/3)
0.5 = coord(1/2)
- Date
- 31. 5.2010 15:02:12
-
Costas, R.; Leeuwen, T.N. van; Bordons, M.: Referencing patterns of individual researchers : do top scientists rely on more extensive information sources? (2012)
0.00
0.0033821356 = product of:
0.0067642713 = sum of:
0.0067642713 = product of:
0.020292813 = sum of:
0.020292813 = weight(_text_:12 in 516) [ClassicSimilarity], result of:
0.020292813 = score(doc=516,freq=2.0), product of:
0.13281173 = queryWeight, product of:
2.765864 = idf(docFreq=7562, maxDocs=44218)
0.048018172 = queryNorm
0.15279384 = fieldWeight in 516, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
2.765864 = idf(docFreq=7562, maxDocs=44218)
0.0390625 = fieldNorm(doc=516)
0.33333334 = coord(1/3)
0.5 = coord(1/2)
- Source
- Journal of the American Society for Information Science and Technology. 63(2012) no.12, S.2433-2450
-
Zahedi, Z.; Costas, R.; Wouters, P.: Mendeley readership as a filtering tool to identify highly cited publications (2017)
0.00
0.0033821356 = product of:
0.0067642713 = sum of:
0.0067642713 = product of:
0.020292813 = sum of:
0.020292813 = weight(_text_:12 in 3837) [ClassicSimilarity], result of:
0.020292813 = score(doc=3837,freq=2.0), product of:
0.13281173 = queryWeight, product of:
2.765864 = idf(docFreq=7562, maxDocs=44218)
0.048018172 = queryNorm
0.15279384 = fieldWeight in 3837, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
2.765864 = idf(docFreq=7562, maxDocs=44218)
0.0390625 = fieldNorm(doc=3837)
0.33333334 = coord(1/3)
0.5 = coord(1/2)
- Date
- 16.11.2017 12:59:52