-
Neth, M.: Citation analysis and the Web (1998)
0.05
0.046627246 = product of:
0.069940865 = sum of:
0.01914932 = weight(_text_:m in 108) [ClassicSimilarity], result of:
0.01914932 = score(doc=108,freq=2.0), product of:
0.099499665 = queryWeight, product of:
2.4884486 = idf(docFreq=9980, maxDocs=44218)
0.039984617 = queryNorm
0.19245613 = fieldWeight in 108, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
2.4884486 = idf(docFreq=9980, maxDocs=44218)
0.0546875 = fieldNorm(doc=108)
0.050791543 = product of:
0.07618731 = sum of:
0.038265772 = weight(_text_:29 in 108) [ClassicSimilarity], result of:
0.038265772 = score(doc=108,freq=2.0), product of:
0.14065339 = queryWeight, product of:
3.5176873 = idf(docFreq=3565, maxDocs=44218)
0.039984617 = queryNorm
0.27205724 = fieldWeight in 108, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5176873 = idf(docFreq=3565, maxDocs=44218)
0.0546875 = fieldNorm(doc=108)
0.037921544 = weight(_text_:22 in 108) [ClassicSimilarity], result of:
0.037921544 = score(doc=108,freq=2.0), product of:
0.14001931 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.039984617 = queryNorm
0.2708308 = fieldWeight in 108, 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=108)
0.6666667 = coord(2/3)
0.6666667 = coord(2/3)
- Date
- 10. 1.1999 16:22:37
- Source
- Art documentation. 17(1998) no.1, S.29-33
-
Diodato, V.: Dictionary of bibliometrics (1994)
0.04
0.04238645 = product of:
0.06357967 = sum of:
0.03829864 = weight(_text_:m in 5666) [ClassicSimilarity], result of:
0.03829864 = score(doc=5666,freq=2.0), product of:
0.099499665 = queryWeight, product of:
2.4884486 = idf(docFreq=9980, maxDocs=44218)
0.039984617 = queryNorm
0.38491225 = fieldWeight in 5666, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
2.4884486 = idf(docFreq=9980, maxDocs=44218)
0.109375 = fieldNorm(doc=5666)
0.02528103 = product of:
0.07584309 = sum of:
0.07584309 = weight(_text_:22 in 5666) [ClassicSimilarity], result of:
0.07584309 = score(doc=5666,freq=2.0), product of:
0.14001931 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.039984617 = queryNorm
0.5416616 = fieldWeight in 5666, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.109375 = fieldNorm(doc=5666)
0.33333334 = coord(1/3)
0.6666667 = coord(2/3)
- Footnote
- Rez. in: Journal of library and information science 22(1996) no.2, S.116-117 (L.C. Smith)
- Type
- m
-
Huang, M.-H.; Huang, W.-T.; Chang, C.-C.; Chen, D. Z.; Lin, C.-P.: The greater scattering phenomenon beyond Bradford's law in patent citation (2014)
0.04
0.03996621 = product of:
0.059949316 = sum of:
0.016413704 = weight(_text_:m in 1352) [ClassicSimilarity], result of:
0.016413704 = score(doc=1352,freq=2.0), product of:
0.099499665 = queryWeight, product of:
2.4884486 = idf(docFreq=9980, maxDocs=44218)
0.039984617 = queryNorm
0.1649624 = fieldWeight in 1352, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
2.4884486 = idf(docFreq=9980, maxDocs=44218)
0.046875 = fieldNorm(doc=1352)
0.043535613 = product of:
0.065303415 = sum of:
0.032799233 = weight(_text_:29 in 1352) [ClassicSimilarity], result of:
0.032799233 = score(doc=1352,freq=2.0), product of:
0.14065339 = queryWeight, product of:
3.5176873 = idf(docFreq=3565, maxDocs=44218)
0.039984617 = queryNorm
0.23319192 = fieldWeight in 1352, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5176873 = idf(docFreq=3565, maxDocs=44218)
0.046875 = fieldNorm(doc=1352)
0.03250418 = weight(_text_:22 in 1352) [ClassicSimilarity], result of:
0.03250418 = score(doc=1352,freq=2.0), product of:
0.14001931 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.039984617 = queryNorm
0.23214069 = fieldWeight in 1352, 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=1352)
0.6666667 = coord(2/3)
0.6666667 = coord(2/3)
- Date
- 22. 8.2014 17:11:29
-
Bookstein, A.: Informetric distributions : I. Unified overview (1990)
0.03
0.03386103 = product of:
0.101583086 = sum of:
0.101583086 = product of:
0.15237463 = sum of:
0.076531544 = weight(_text_:29 in 6902) [ClassicSimilarity], result of:
0.076531544 = score(doc=6902,freq=2.0), product of:
0.14065339 = queryWeight, product of:
3.5176873 = idf(docFreq=3565, maxDocs=44218)
0.039984617 = queryNorm
0.5441145 = fieldWeight in 6902, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5176873 = idf(docFreq=3565, maxDocs=44218)
0.109375 = fieldNorm(doc=6902)
0.07584309 = weight(_text_:22 in 6902) [ClassicSimilarity], result of:
0.07584309 = score(doc=6902,freq=2.0), product of:
0.14001931 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.039984617 = queryNorm
0.5416616 = fieldWeight in 6902, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.109375 = fieldNorm(doc=6902)
0.6666667 = coord(2/3)
0.33333334 = coord(1/3)
- Date
- 22. 7.2006 18:55:29
-
Thelwall, M.; Thelwall, S.: ¬A thematic analysis of highly retweeted early COVID-19 tweets : consensus, information, dissent and lockdown life (2020)
0.03
0.033305176 = product of:
0.049957763 = sum of:
0.013678086 = weight(_text_:m in 178) [ClassicSimilarity], result of:
0.013678086 = score(doc=178,freq=2.0), product of:
0.099499665 = queryWeight, product of:
2.4884486 = idf(docFreq=9980, maxDocs=44218)
0.039984617 = queryNorm
0.13746867 = fieldWeight in 178, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
2.4884486 = idf(docFreq=9980, maxDocs=44218)
0.0390625 = fieldNorm(doc=178)
0.03627968 = product of:
0.054419514 = sum of:
0.027332695 = weight(_text_:29 in 178) [ClassicSimilarity], result of:
0.027332695 = score(doc=178,freq=2.0), product of:
0.14065339 = queryWeight, product of:
3.5176873 = idf(docFreq=3565, maxDocs=44218)
0.039984617 = queryNorm
0.19432661 = fieldWeight in 178, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5176873 = idf(docFreq=3565, maxDocs=44218)
0.0390625 = fieldNorm(doc=178)
0.027086819 = weight(_text_:22 in 178) [ClassicSimilarity], result of:
0.027086819 = score(doc=178,freq=2.0), product of:
0.14001931 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.039984617 = queryNorm
0.19345059 = fieldWeight in 178, 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=178)
0.6666667 = coord(2/3)
0.6666667 = coord(2/3)
- Abstract
- Purpose Public attitudes towards COVID-19 and social distancing are critical in reducing its spread. It is therefore important to understand public reactions and information dissemination in all major forms, including on social media. This article investigates important issues reflected on Twitter in the early stages of the public reaction to COVID-19. Design/methodology/approach A thematic analysis of the most retweeted English-language tweets mentioning COVID-19 during March 10-29, 2020. Findings The main themes identified for the 87 qualifying tweets accounting for 14 million retweets were: lockdown life; attitude towards social restrictions; politics; safety messages; people with COVID-19; support for key workers; work; and COVID-19 facts/news. Research limitations/implications Twitter played many positive roles, mainly through unofficial tweets. Users shared social distancing information, helped build support for social distancing, criticised government responses, expressed support for key workers and helped each other cope with social isolation. A few popular tweets not supporting social distancing show that government messages sometimes failed. Practical implications Public health campaigns in future may consider encouraging grass roots social web activity to support campaign goals. At a methodological level, analysing retweet counts emphasised politics and ignored practical implementation issues. Originality/value This is the first qualitative analysis of general COVID-19-related retweeting.
- Date
- 20. 1.2015 18:30:22
-
Grazia Colonia; Dimmler, E.; Dresel, R.; Messner, C.; Krobath, A.; Petz, S.; Sypien, M.; Boxen, P. van; Harders, M.; Heuer, D.; Jordans, I.; Juchem, K.; Linnertz, M.; Mittelhuber, I.; Schwammel, S.; Schlögl, C.; Stock, W.G.: Informationswissenschaftliche Zeitschriften in szientometrischer Analyse (2002)
0.03
0.030615237 = product of:
0.045922853 = sum of:
0.033167597 = weight(_text_:m in 1075) [ClassicSimilarity], result of:
0.033167597 = score(doc=1075,freq=6.0), product of:
0.099499665 = queryWeight, product of:
2.4884486 = idf(docFreq=9980, maxDocs=44218)
0.039984617 = queryNorm
0.3333438 = fieldWeight in 1075, product of:
2.4494898 = tf(freq=6.0), with freq of:
6.0 = termFreq=6.0
2.4884486 = idf(docFreq=9980, maxDocs=44218)
0.0546875 = fieldNorm(doc=1075)
0.012755258 = product of:
0.038265772 = sum of:
0.038265772 = weight(_text_:29 in 1075) [ClassicSimilarity], result of:
0.038265772 = score(doc=1075,freq=2.0), product of:
0.14065339 = queryWeight, product of:
3.5176873 = idf(docFreq=3565, maxDocs=44218)
0.039984617 = queryNorm
0.27205724 = fieldWeight in 1075, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5176873 = idf(docFreq=3565, maxDocs=44218)
0.0546875 = fieldNorm(doc=1075)
0.33333334 = coord(1/3)
0.6666667 = coord(2/3)
- Date
- 23. 8.2002 11:51:29
-
Nicholas, D.; Ritchie, M.: Literature and bibliometrics (1978)
0.03
0.025791649 = product of:
0.07737494 = sum of:
0.07737494 = weight(_text_:m in 1081) [ClassicSimilarity], result of:
0.07737494 = score(doc=1081,freq=4.0), product of:
0.099499665 = queryWeight, product of:
2.4884486 = idf(docFreq=9980, maxDocs=44218)
0.039984617 = queryNorm
0.7776402 = fieldWeight in 1081, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
2.4884486 = idf(docFreq=9980, maxDocs=44218)
0.15625 = fieldNorm(doc=1081)
0.33333334 = coord(1/3)
- Type
- m
-
Liu, M.; Bu, Y.; Chen, C.; Xu, J.; Li, D.; Leng, Y.; Freeman, R.B.; Meyer, E.T.; Yoon, W.; Sung, M.; Jeong, M.; Lee, J.; Kang, J.; Min, C.; Zhai, Y.; Song, M.; Ding, Y.: Pandemics are catalysts of scientific novelty : evidence from COVID-19 (2022)
0.02
0.024311382 = product of:
0.03646707 = sum of:
0.027356172 = weight(_text_:m in 633) [ClassicSimilarity], result of:
0.027356172 = score(doc=633,freq=8.0), product of:
0.099499665 = queryWeight, product of:
2.4884486 = idf(docFreq=9980, maxDocs=44218)
0.039984617 = queryNorm
0.27493733 = fieldWeight in 633, product of:
2.828427 = tf(freq=8.0), with freq of:
8.0 = termFreq=8.0
2.4884486 = idf(docFreq=9980, maxDocs=44218)
0.0390625 = fieldNorm(doc=633)
0.009110899 = product of:
0.027332695 = sum of:
0.027332695 = weight(_text_:29 in 633) [ClassicSimilarity], result of:
0.027332695 = score(doc=633,freq=2.0), product of:
0.14065339 = queryWeight, product of:
3.5176873 = idf(docFreq=3565, maxDocs=44218)
0.039984617 = queryNorm
0.19432661 = fieldWeight in 633, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5176873 = idf(docFreq=3565, maxDocs=44218)
0.0390625 = fieldNorm(doc=633)
0.33333334 = coord(1/3)
0.6666667 = coord(2/3)
- Abstract
- Scientific novelty drives the efforts to invent new vaccines and solutions during the pandemic. First-time collaboration and international collaboration are two pivotal channels to expand teams' search activities for a broader scope of resources required to address the global challenge, which might facilitate the generation of novel ideas. Our analysis of 98,981 coronavirus papers suggests that scientific novelty measured by the BioBERT model that is pretrained on 29 million PubMed articles, and first-time collaboration increased after the outbreak of COVID-19, and international collaboration witnessed a sudden decrease. During COVID-19, papers with more first-time collaboration were found to be more novel and international collaboration did not hamper novelty as it had done in the normal periods. The findings suggest the necessity of reaching out for distant resources and the importance of maintaining a collaborative scientific community beyond nationalism during a pandemic.
-
Chung, Y.-K.: Bradford distribution and core authors in classification systems literature (1994)
0.02
0.02430825 = product of:
0.036462374 = sum of:
0.021884937 = weight(_text_:m in 5066) [ClassicSimilarity], result of:
0.021884937 = score(doc=5066,freq=2.0), product of:
0.099499665 = queryWeight, product of:
2.4884486 = idf(docFreq=9980, maxDocs=44218)
0.039984617 = queryNorm
0.21994986 = fieldWeight in 5066, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
2.4884486 = idf(docFreq=9980, maxDocs=44218)
0.0625 = fieldNorm(doc=5066)
0.014577437 = product of:
0.04373231 = sum of:
0.04373231 = weight(_text_:29 in 5066) [ClassicSimilarity], result of:
0.04373231 = score(doc=5066,freq=2.0), product of:
0.14065339 = queryWeight, product of:
3.5176873 = idf(docFreq=3565, maxDocs=44218)
0.039984617 = queryNorm
0.31092256 = fieldWeight in 5066, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5176873 = idf(docFreq=3565, maxDocs=44218)
0.0625 = fieldNorm(doc=5066)
0.33333334 = coord(1/3)
0.6666667 = coord(2/3)
- Abstract
- Bradford's law of scatter was applied to the analysis of the authors of source documents on the subject of classification schemes, published in core periodicals over the period 1981-1990. Results indicated that: core authors of the international classification system literature are Library of Congress, M. Dewey, S. Ranganathan, J. Comaroni, A. Neelameghan, L. Chan and K. Markey; the highly cited authors are linked either to the developers of the classification schemes or to a research centre, or else they authored the most frequently cited books; and the data conforms to Bradford's Law of Scatter
- Source
- Scientometrics. 29(1994) no.2, S.253-269
-
Kurtz, M.J.; Eichhorn, G.; Accomazzi, A.; Grant, C.; Demleitner, M.; Henneken, E.; Murray, S.S.: ¬The effect of use and access on citations (2005)
0.02
0.02430825 = product of:
0.036462374 = sum of:
0.021884937 = weight(_text_:m in 1064) [ClassicSimilarity], result of:
0.021884937 = score(doc=1064,freq=2.0), product of:
0.099499665 = queryWeight, product of:
2.4884486 = idf(docFreq=9980, maxDocs=44218)
0.039984617 = queryNorm
0.21994986 = fieldWeight in 1064, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
2.4884486 = idf(docFreq=9980, maxDocs=44218)
0.0625 = fieldNorm(doc=1064)
0.014577437 = product of:
0.04373231 = sum of:
0.04373231 = weight(_text_:29 in 1064) [ClassicSimilarity], result of:
0.04373231 = score(doc=1064,freq=2.0), product of:
0.14065339 = queryWeight, product of:
3.5176873 = idf(docFreq=3565, maxDocs=44218)
0.039984617 = queryNorm
0.31092256 = fieldWeight in 1064, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5176873 = idf(docFreq=3565, maxDocs=44218)
0.0625 = fieldNorm(doc=1064)
0.33333334 = coord(1/3)
0.6666667 = coord(2/3)
- Date
- 27.12.2007 17:16:29
-
Schreiber, M.: Revisiting the g-index : the average number of citations in the g-core (2009)
0.02
0.02430825 = product of:
0.036462374 = sum of:
0.021884937 = weight(_text_:m in 3313) [ClassicSimilarity], result of:
0.021884937 = score(doc=3313,freq=2.0), product of:
0.099499665 = queryWeight, product of:
2.4884486 = idf(docFreq=9980, maxDocs=44218)
0.039984617 = queryNorm
0.21994986 = fieldWeight in 3313, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
2.4884486 = idf(docFreq=9980, maxDocs=44218)
0.0625 = fieldNorm(doc=3313)
0.014577437 = product of:
0.04373231 = sum of:
0.04373231 = weight(_text_:29 in 3313) [ClassicSimilarity], result of:
0.04373231 = score(doc=3313,freq=2.0), product of:
0.14065339 = queryWeight, product of:
3.5176873 = idf(docFreq=3565, maxDocs=44218)
0.039984617 = queryNorm
0.31092256 = fieldWeight in 3313, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5176873 = idf(docFreq=3565, maxDocs=44218)
0.0625 = fieldNorm(doc=3313)
0.33333334 = coord(1/3)
0.6666667 = coord(2/3)
- Date
- 4. 2.2010 20:56:29
-
Thelwall, M.; Ruschenburg, T.: Grundlagen und Forschungsfelder der Webometrie (2006)
0.02
0.024220828 = product of:
0.03633124 = sum of:
0.021884937 = weight(_text_:m in 77) [ClassicSimilarity], result of:
0.021884937 = score(doc=77,freq=2.0), product of:
0.099499665 = queryWeight, product of:
2.4884486 = idf(docFreq=9980, maxDocs=44218)
0.039984617 = queryNorm
0.21994986 = fieldWeight in 77, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
2.4884486 = idf(docFreq=9980, maxDocs=44218)
0.0625 = fieldNorm(doc=77)
0.014446302 = product of:
0.043338906 = sum of:
0.043338906 = weight(_text_:22 in 77) [ClassicSimilarity], result of:
0.043338906 = score(doc=77,freq=2.0), product of:
0.14001931 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.039984617 = queryNorm
0.30952093 = fieldWeight in 77, 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=77)
0.33333334 = coord(1/3)
0.6666667 = coord(2/3)
- Date
- 4.12.2006 12:12:22
-
Scholarly metrics under the microscope : from citation analysis to academic auditing (2015)
0.02
0.024220828 = product of:
0.03633124 = sum of:
0.021884937 = weight(_text_:m in 4654) [ClassicSimilarity], result of:
0.021884937 = score(doc=4654,freq=2.0), product of:
0.099499665 = queryWeight, product of:
2.4884486 = idf(docFreq=9980, maxDocs=44218)
0.039984617 = queryNorm
0.21994986 = fieldWeight in 4654, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
2.4884486 = idf(docFreq=9980, maxDocs=44218)
0.0625 = fieldNorm(doc=4654)
0.014446302 = product of:
0.043338906 = sum of:
0.043338906 = weight(_text_:22 in 4654) [ClassicSimilarity], result of:
0.043338906 = score(doc=4654,freq=2.0), product of:
0.14001931 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.039984617 = queryNorm
0.30952093 = fieldWeight in 4654, 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=4654)
0.33333334 = coord(1/3)
0.6666667 = coord(2/3)
- Date
- 22. 1.2017 17:12:50
- Type
- m
-
Camacho-Miñano, M.-del-Mar; Núñez-Nickel, M.: ¬The multilayered nature of reference selection (2009)
0.02
0.02269814 = product of:
0.03404721 = sum of:
0.023212481 = weight(_text_:m in 2751) [ClassicSimilarity], result of:
0.023212481 = score(doc=2751,freq=4.0), product of:
0.099499665 = queryWeight, product of:
2.4884486 = idf(docFreq=9980, maxDocs=44218)
0.039984617 = queryNorm
0.23329206 = fieldWeight in 2751, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
2.4884486 = idf(docFreq=9980, maxDocs=44218)
0.046875 = fieldNorm(doc=2751)
0.0108347265 = product of:
0.03250418 = sum of:
0.03250418 = weight(_text_:22 in 2751) [ClassicSimilarity], result of:
0.03250418 = score(doc=2751,freq=2.0), product of:
0.14001931 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.039984617 = queryNorm
0.23214069 = fieldWeight in 2751, 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=2751)
0.33333334 = coord(1/3)
0.6666667 = coord(2/3)
- Date
- 22. 3.2009 19:05:07
-
¬Die deutsche Zeitschrift für Dokumentation, Informationswissenschaft und Informationspraxis von 1950 bis 2011 : eine vorläufige Bilanz in vier Abschnitten (2012)
0.02
0.02269814 = product of:
0.03404721 = sum of:
0.023212481 = weight(_text_:m in 402) [ClassicSimilarity], result of:
0.023212481 = score(doc=402,freq=4.0), product of:
0.099499665 = queryWeight, product of:
2.4884486 = idf(docFreq=9980, maxDocs=44218)
0.039984617 = queryNorm
0.23329206 = fieldWeight in 402, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
2.4884486 = idf(docFreq=9980, maxDocs=44218)
0.046875 = fieldNorm(doc=402)
0.0108347265 = product of:
0.03250418 = sum of:
0.03250418 = weight(_text_:22 in 402) [ClassicSimilarity], result of:
0.03250418 = score(doc=402,freq=2.0), product of:
0.14001931 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.039984617 = queryNorm
0.23214069 = fieldWeight in 402, 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=402)
0.33333334 = coord(1/3)
0.6666667 = coord(2/3)
- Date
- 22. 7.2012 19:35:26
- Footnote
- Besteht aus 4 Teilen: Teil 1: Eden, D., A. Arndt, A. Hoffer, T. Raschke u. P. Schön: Die Nachrichten für Dokumentation in den Jahren 1950 bis 1962 (S.159-163). Teil 2: Brose, M., E. durst, D. Nitzsche, D. Veckenstedt u. R. Wein: Statistische Untersuchung der Fachzeitschrift "Nachrichten für Dokumentation" (NfD) 1963-1975 (S.164-170). Teil 3: Bösel, J., G. Ebert, P. Garz,, M. Iwanow u. B. Russ: Methoden und Ergebnisse einer statistischen Auswertung der Fachzeitschrift "Nachrichten für Dokumentation" (NfD) 1976 bis 1988 (S.171-174). Teil 4: Engelage, H., S. Jansen, R. Mertins, K. Redel u. S. Ring: Statistische Untersuchung der Fachzeitschrift "Nachrichten für Dokumentation" (NfD) / "Information. Wissenschaft & Praxis" (IWP) 1989-2011 (S.164-170).
-
Dobrota, M.; Dobrota, M.: ARWU ranking uncertainty and sensitivity : what if the award factor was Excluded? (2016)
0.02
0.02269814 = product of:
0.03404721 = sum of:
0.023212481 = weight(_text_:m in 2652) [ClassicSimilarity], result of:
0.023212481 = score(doc=2652,freq=4.0), product of:
0.099499665 = queryWeight, product of:
2.4884486 = idf(docFreq=9980, maxDocs=44218)
0.039984617 = queryNorm
0.23329206 = fieldWeight in 2652, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
2.4884486 = idf(docFreq=9980, maxDocs=44218)
0.046875 = fieldNorm(doc=2652)
0.0108347265 = product of:
0.03250418 = sum of:
0.03250418 = weight(_text_:22 in 2652) [ClassicSimilarity], result of:
0.03250418 = score(doc=2652,freq=2.0), product of:
0.14001931 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.039984617 = queryNorm
0.23214069 = fieldWeight in 2652, 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=2652)
0.33333334 = coord(1/3)
0.6666667 = coord(2/3)
- Date
- 22. 1.2016 14:40:53
-
Zitt, M.; Lelu, A.; Bassecoulard, E.: Hybrid citation-word representations in science mapping : Portolan charts of research fields? (2011)
0.02
0.021813389 = product of:
0.03272008 = sum of:
0.02369114 = weight(_text_:m in 4130) [ClassicSimilarity], result of:
0.02369114 = score(doc=4130,freq=6.0), product of:
0.099499665 = queryWeight, product of:
2.4884486 = idf(docFreq=9980, maxDocs=44218)
0.039984617 = queryNorm
0.2381027 = fieldWeight in 4130, product of:
2.4494898 = tf(freq=6.0), with freq of:
6.0 = termFreq=6.0
2.4884486 = idf(docFreq=9980, maxDocs=44218)
0.0390625 = fieldNorm(doc=4130)
0.0090289395 = product of:
0.027086819 = sum of:
0.027086819 = weight(_text_:22 in 4130) [ClassicSimilarity], result of:
0.027086819 = score(doc=4130,freq=2.0), product of:
0.14001931 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.039984617 = queryNorm
0.19345059 = fieldWeight in 4130, 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=4130)
0.33333334 = coord(1/3)
0.6666667 = coord(2/3)
- Abstract
- The mapping of scientific fields, based on principles established in the seventies, has recently shown a remarkable development and applications are now booming with progress in computing efficiency. We examine here the convergence of two thematic mapping approaches, citation-based and word-based, which rely on quite different sociological backgrounds. A corpus in the nanoscience field was broken down into research themes, using the same clustering technique on the 2 networks separately. The tool for comparison is the table of intersections of the M clusters (here M=50) built on either side. A classical visual exploitation of such contingency tables is based on correspondence analysis. We investigate a rearrangement of the intersection table (block modeling), resulting in pseudo-map. The interest of this representation for confronting the two breakdowns is discussed. The amount of convergence found is, in our view, a strong argument in favor of the reliability of bibliometric mapping. However, the outcomes are not convergent at the degree where they can be substituted for each other. Differences highlight the complementarity between approaches based on different networks. In contrast with the strong informetric posture found in recent literature, where lexical and citation markers are considered as miscible tokens, the framework proposed here does not mix the two elements at an early stage, in compliance with their contrasted logic.
- Date
- 8. 1.2011 18:22:50
-
Thelwall, M.; Kousha, K.; Abdoli, M.; Stuart, E.; Makita, M.; Wilson, P.; Levitt, J.: Why are coauthored academic articles more cited : higher quality or larger audience? (2023)
0.02
0.021813389 = product of:
0.03272008 = sum of:
0.02369114 = weight(_text_:m in 995) [ClassicSimilarity], result of:
0.02369114 = score(doc=995,freq=6.0), product of:
0.099499665 = queryWeight, product of:
2.4884486 = idf(docFreq=9980, maxDocs=44218)
0.039984617 = queryNorm
0.2381027 = fieldWeight in 995, product of:
2.4494898 = tf(freq=6.0), with freq of:
6.0 = termFreq=6.0
2.4884486 = idf(docFreq=9980, maxDocs=44218)
0.0390625 = fieldNorm(doc=995)
0.0090289395 = product of:
0.027086819 = sum of:
0.027086819 = weight(_text_:22 in 995) [ClassicSimilarity], result of:
0.027086819 = score(doc=995,freq=2.0), product of:
0.14001931 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.039984617 = queryNorm
0.19345059 = fieldWeight in 995, 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=995)
0.33333334 = coord(1/3)
0.6666667 = coord(2/3)
- Date
- 22. 6.2023 18:11:50
-
Deshpande, M.; Rajyalakshmi, D.: Citation study of dissertations in library and information science (1997)
0.02
0.02126972 = product of:
0.03190458 = sum of:
0.01914932 = weight(_text_:m in 1594) [ClassicSimilarity], result of:
0.01914932 = score(doc=1594,freq=2.0), product of:
0.099499665 = queryWeight, product of:
2.4884486 = idf(docFreq=9980, maxDocs=44218)
0.039984617 = queryNorm
0.19245613 = fieldWeight in 1594, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
2.4884486 = idf(docFreq=9980, maxDocs=44218)
0.0546875 = fieldNorm(doc=1594)
0.012755258 = product of:
0.038265772 = sum of:
0.038265772 = weight(_text_:29 in 1594) [ClassicSimilarity], result of:
0.038265772 = score(doc=1594,freq=2.0), product of:
0.14065339 = queryWeight, product of:
3.5176873 = idf(docFreq=3565, maxDocs=44218)
0.039984617 = queryNorm
0.27205724 = fieldWeight in 1594, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5176873 = idf(docFreq=3565, maxDocs=44218)
0.0546875 = fieldNorm(doc=1594)
0.33333334 = coord(1/3)
0.6666667 = coord(2/3)
- Date
- 3. 8.2006 12:53:29
-
Egghe, L.; Rousseau, R.: Introduction to informetrics : quantitative methods in library, documentation and information science (1990)
0.02
0.02126972 = product of:
0.03190458 = sum of:
0.01914932 = weight(_text_:m in 1515) [ClassicSimilarity], result of:
0.01914932 = score(doc=1515,freq=2.0), product of:
0.099499665 = queryWeight, product of:
2.4884486 = idf(docFreq=9980, maxDocs=44218)
0.039984617 = queryNorm
0.19245613 = fieldWeight in 1515, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
2.4884486 = idf(docFreq=9980, maxDocs=44218)
0.0546875 = fieldNorm(doc=1515)
0.012755258 = product of:
0.038265772 = sum of:
0.038265772 = weight(_text_:29 in 1515) [ClassicSimilarity], result of:
0.038265772 = score(doc=1515,freq=2.0), product of:
0.14065339 = queryWeight, product of:
3.5176873 = idf(docFreq=3565, maxDocs=44218)
0.039984617 = queryNorm
0.27205724 = fieldWeight in 1515, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5176873 = idf(docFreq=3565, maxDocs=44218)
0.0546875 = fieldNorm(doc=1515)
0.33333334 = coord(1/3)
0.6666667 = coord(2/3)
- Date
- 29. 2.2008 19:02:46
- Type
- m
