-
Scholarly metrics under the microscope : from citation analysis to academic auditing (2015)
0.06
0.064317085 = product of:
0.16079271 = sum of:
0.13775487 = weight(_text_:inc in 4654) [ClassicSimilarity], result of:
0.13775487 = score(doc=4654,freq=2.0), product of:
0.2573945 = queryWeight, product of:
6.0549803 = idf(docFreq=281, maxDocs=44218)
0.042509552 = queryNorm
0.5351897 = fieldWeight in 4654, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
6.0549803 = idf(docFreq=281, maxDocs=44218)
0.0625 = fieldNorm(doc=4654)
0.02303783 = product of:
0.04607566 = sum of:
0.04607566 = weight(_text_:22 in 4654) [ClassicSimilarity], result of:
0.04607566 = score(doc=4654,freq=2.0), product of:
0.14886121 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.042509552 = 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)
0.5 = coord(1/2)
0.4 = coord(2/5)
- Date
- 22. 1.2017 17:12:50
- Imprint
- Medford, NJ : Information Today, Inc.
-
Herb, U.; Beucke, D.: ¬Die Zukunft der Impact-Messung : Social Media, Nutzung und Zitate im World Wide Web (2013)
0.05
0.05401315 = product of:
0.27006575 = sum of:
0.27006575 = weight(_text_:2f in 2188) [ClassicSimilarity], result of:
0.27006575 = score(doc=2188,freq=2.0), product of:
0.36039644 = queryWeight, product of:
8.478011 = idf(docFreq=24, maxDocs=44218)
0.042509552 = queryNorm
0.7493574 = fieldWeight in 2188, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
8.478011 = idf(docFreq=24, maxDocs=44218)
0.0625 = fieldNorm(doc=2188)
0.2 = coord(1/5)
- Content
- Vgl. unter: https://www.leibniz-science20.de%2Fforschung%2Fprojekte%2Faltmetrics-in-verschiedenen-wissenschaftsdisziplinen%2F&ei=2jTgVaaXGcK4Udj1qdgB&usg=AFQjCNFOPdONj4RKBDf9YDJOLuz3lkGYlg&sig2=5YI3KWIGxBmk5_kv0P_8iQ.
-
Nicholls, P.T.: Empirical validation of Lotka's law (1986)
0.04
0.0355052 = product of:
0.17752601 = sum of:
0.17752601 = sum of:
0.08537469 = weight(_text_:management in 5509) [ClassicSimilarity], result of:
0.08537469 = score(doc=5509,freq=2.0), product of:
0.14328322 = queryWeight, product of:
3.3706124 = idf(docFreq=4130, maxDocs=44218)
0.042509552 = queryNorm
0.5958457 = fieldWeight in 5509, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.3706124 = idf(docFreq=4130, maxDocs=44218)
0.125 = fieldNorm(doc=5509)
0.09215132 = weight(_text_:22 in 5509) [ClassicSimilarity], result of:
0.09215132 = score(doc=5509,freq=2.0), product of:
0.14886121 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.042509552 = queryNorm
0.61904186 = fieldWeight in 5509, 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=5509)
0.2 = coord(1/5)
- Source
- Information processing and management. 22(1986), S.417-419
-
Petersen, A.; Münch, V.: STN® AnaVist(TM) holt verborgenes Wissen aus Recherche-Ergebnissen : Neue Software analysiert und visualisiert Marktaufteilung, Forschung und Patentaktivitäten (2005)
0.03
0.028446926 = product of:
0.14223462 = sum of:
0.14223462 = weight(_text_:strategisches in 3984) [ClassicSimilarity], result of:
0.14223462 = score(doc=3984,freq=2.0), product of:
0.3698822 = queryWeight, product of:
8.701155 = idf(docFreq=19, maxDocs=44218)
0.042509552 = queryNorm
0.38454035 = fieldWeight in 3984, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
8.701155 = idf(docFreq=19, maxDocs=44218)
0.03125 = fieldNorm(doc=3984)
0.2 = coord(1/5)
- Abstract
- "Im 21. Jahrhundert ist die entscheidende Herausforderung an Informationsdienstleister nicht, Informationen zugänglich, sondern sie optimal nutzbar zu machen", sagt Sabine Brünger-Weilandt, Geschäftsführerin von FIZ Karlsruhe, das den Online-Dienst STN International in internationaler Kooperation betreibt. Informationsprofis, so Brünger-Weilandt weiter, bräuchten hockentwickelte Software für strategisches Informationsmanagement. Als "Antwort auf diesen Bedarf" hat STN International eine neue Software zur Analyse und Visualisierung (A&V) von Rechercheergebnissen aus STN-Datenbanken entwickelt. STN® AnaVistT(TM) wurde auf der DGI Online-Tagung Ende Mai in Frankfurt am Main und auf Benutzertreffen in Frankfurt am Main, München und Essen vorgestellt. Seit 18. Juli 2005 ist das neue A&V-Werkzeug für die öffentliche Nutzung freigegeben (www.stn-international.de).
-
Mingers, J.; Burrell, Q.L.: Modeling citation behavior in Management Science journals (2006)
0.02
0.019717554 = product of:
0.09858777 = sum of:
0.09858777 = sum of:
0.06403102 = weight(_text_:management in 994) [ClassicSimilarity], result of:
0.06403102 = score(doc=994,freq=8.0), product of:
0.14328322 = queryWeight, product of:
3.3706124 = idf(docFreq=4130, maxDocs=44218)
0.042509552 = queryNorm
0.44688427 = fieldWeight in 994, product of:
2.828427 = tf(freq=8.0), with freq of:
8.0 = termFreq=8.0
3.3706124 = idf(docFreq=4130, maxDocs=44218)
0.046875 = fieldNorm(doc=994)
0.034556746 = weight(_text_:22 in 994) [ClassicSimilarity], result of:
0.034556746 = score(doc=994,freq=2.0), product of:
0.14886121 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.042509552 = 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)
0.2 = coord(1/5)
- Abstract
- Citation rates are becoming increasingly important in judging the research quality of journals, institutions and departments, and individual faculty. This paper looks at the pattern of citations across different management science journals and over time. A stochastic model is proposed which views the generating mechanism of citations as a gamma mixture of Poisson processes generating overall a negative binomial distribution. This is tested empirically with a large sample of papers published in 1990 from six management science journals and found to fit well. The model is extended to include obsolescence, i.e., that the citation rate for a paper varies over its cited lifetime. This leads to the additional citations distribution which shows that future citations are a linear function of past citations with a time-dependent and decreasing slope. This is also verified empirically in a way that allows different obsolescence functions to be fitted to the data. Conclusions concerning the predictability of future citations, and future research in this area are discussed.
- Date
- 26.12.2007 19:22:05
- Source
- Information processing and management. 42(2006) no.6, S.1451-1464
-
Falkingham, L.T.; Reeves, R.: Context analysis : a technique for analysing research in a field, applied to literature on the management of R&D at the section level (1998)
0.02
0.01862782 = product of:
0.0931391 = sum of:
0.0931391 = sum of:
0.052822895 = weight(_text_:management in 3689) [ClassicSimilarity], result of:
0.052822895 = score(doc=3689,freq=4.0), product of:
0.14328322 = queryWeight, product of:
3.3706124 = idf(docFreq=4130, maxDocs=44218)
0.042509552 = queryNorm
0.36866072 = fieldWeight in 3689, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
3.3706124 = idf(docFreq=4130, maxDocs=44218)
0.0546875 = fieldNorm(doc=3689)
0.0403162 = weight(_text_:22 in 3689) [ClassicSimilarity], result of:
0.0403162 = score(doc=3689,freq=2.0), product of:
0.14886121 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.042509552 = queryNorm
0.2708308 = fieldWeight in 3689, 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=3689)
0.2 = coord(1/5)
- Abstract
- Context analysis is a new method for appraising a body of publications. the process consists of creating a database of attributes assigned to each paper by the reviewer and then looking for interesting relationships in the data. Assigning the attributes requires an understanding of the subject matter of the papers. Presents findings about one particular research field, Management of R&D at the Section Level. The findings support the view that this body of academic publications does not meet the needs of practitioner R&D managers. Discusses practical aspects of how to apply the method in other fields
- Date
- 22. 5.1999 19:18:46
-
Zhu, Q.; Kong, X.; Hong, S.; Li, J.; He, Z.: Global ontology research progress : a bibliometric analysis (2015)
0.02
0.01569123 = product of:
0.07845615 = sum of:
0.07845615 = sum of:
0.037730638 = weight(_text_:management in 2590) [ClassicSimilarity], result of:
0.037730638 = score(doc=2590,freq=4.0), product of:
0.14328322 = queryWeight, product of:
3.3706124 = idf(docFreq=4130, maxDocs=44218)
0.042509552 = queryNorm
0.2633291 = fieldWeight in 2590, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
3.3706124 = idf(docFreq=4130, maxDocs=44218)
0.0390625 = fieldNorm(doc=2590)
0.040725514 = weight(_text_:22 in 2590) [ClassicSimilarity], result of:
0.040725514 = score(doc=2590,freq=4.0), product of:
0.14886121 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.042509552 = queryNorm
0.27358043 = fieldWeight in 2590, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.0390625 = fieldNorm(doc=2590)
0.2 = coord(1/5)
- Abstract
- Purpose - The purpose of this paper is to analyse the global scientific outputs of ontology research, an important emerging discipline that has huge potential to improve information understanding, organization, and management. Design/methodology/approach - This study collected literature published during 1900-2012 from the Web of Science database. The bibliometric analysis was performed from authorial, institutional, national, spatiotemporal, and topical aspects. Basic statistical analysis, visualization of geographic distribution, co-word analysis, and a new index were applied to the selected data. Findings - Characteristics of publication outputs suggested that ontology research has entered into the soaring stage, along with increased participation and collaboration. The authors identified the leading authors, institutions, nations, and articles in ontology research. Authors were more from North America, Europe, and East Asia. The USA took the lead, while China grew fastest. Four major categories of frequently used keywords were identified: applications in Semantic Web, applications in bioinformatics, philosophy theories, and common supporting technology. Semantic Web research played a core role, and gene ontology study was well-developed. The study focus of ontology has shifted from philosophy to information science. Originality/value - This is the first study to quantify global research patterns and trends in ontology, which might provide a potential guide for the future research. The new index provides an alternative way to evaluate the multidisciplinary influence of researchers.
- Date
- 20. 1.2015 18:30:22
17. 9.2018 18:22:23
- Source
- Aslib journal of information management. 67(2015) no.1, S.27-54
-
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)
0.01
0.013314451 = product of:
0.06657226 = sum of:
0.06657226 = sum of:
0.03201551 = weight(_text_:management in 1352) [ClassicSimilarity], result of:
0.03201551 = score(doc=1352,freq=2.0), product of:
0.14328322 = queryWeight, product of:
3.3706124 = idf(docFreq=4130, maxDocs=44218)
0.042509552 = queryNorm
0.22344214 = fieldWeight in 1352, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.3706124 = idf(docFreq=4130, maxDocs=44218)
0.046875 = fieldNorm(doc=1352)
0.034556746 = weight(_text_:22 in 1352) [ClassicSimilarity], result of:
0.034556746 = score(doc=1352,freq=2.0), product of:
0.14886121 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.042509552 = 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)
0.2 = coord(1/5)
- Abstract
- Patent analysis has become important for management as it offers timely and valuable information to evaluate R&D performance and identify the prospects of patents. This study explores the scattering patterns of patent impact based on citations in 3 distinct technological areas, the liquid crystal, semiconductor, and drug technological areas, to identify the core patents in each area. The research follows the approach from Bradford's law, which equally divides total citations into 3 zones. While the result suggests that the scattering of patent citations corresponded with features of Bradford's law, the proportion of patents in the 3 zones did not match the proportion as proposed by the law. As a result, the study shows that the distributions of citations in all 3 areas were more concentrated than what Bradford's law proposed. The Groos (1967) droop was also presented by the scattering of patent citations, and the growth rate of cumulative citation decreased in the third zone.
- Date
- 22. 8.2014 17:11:29
-
Kumar, S.: Co-authorship networks : a review of the literature (2015)
0.01
0.013314451 = product of:
0.06657226 = sum of:
0.06657226 = sum of:
0.03201551 = weight(_text_:management in 2586) [ClassicSimilarity], result of:
0.03201551 = score(doc=2586,freq=2.0), product of:
0.14328322 = queryWeight, product of:
3.3706124 = idf(docFreq=4130, maxDocs=44218)
0.042509552 = queryNorm
0.22344214 = fieldWeight in 2586, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.3706124 = idf(docFreq=4130, maxDocs=44218)
0.046875 = fieldNorm(doc=2586)
0.034556746 = weight(_text_:22 in 2586) [ClassicSimilarity], result of:
0.034556746 = score(doc=2586,freq=2.0), product of:
0.14886121 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.042509552 = queryNorm
0.23214069 = fieldWeight in 2586, 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=2586)
0.2 = coord(1/5)
- Date
- 20. 1.2015 18:30:22
- Source
- Aslib journal of information management. 67(2015) no.1, S.55-73
-
Lorentzen, D.G.: Bridging polarised Twitter discussions : the interactions of the users in the middle (2021)
0.01
0.013314451 = product of:
0.06657226 = sum of:
0.06657226 = sum of:
0.03201551 = weight(_text_:management in 182) [ClassicSimilarity], result of:
0.03201551 = score(doc=182,freq=2.0), product of:
0.14328322 = queryWeight, product of:
3.3706124 = idf(docFreq=4130, maxDocs=44218)
0.042509552 = queryNorm
0.22344214 = fieldWeight in 182, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.3706124 = idf(docFreq=4130, maxDocs=44218)
0.046875 = fieldNorm(doc=182)
0.034556746 = weight(_text_:22 in 182) [ClassicSimilarity], result of:
0.034556746 = score(doc=182,freq=2.0), product of:
0.14886121 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.042509552 = queryNorm
0.23214069 = fieldWeight in 182, 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=182)
0.2 = coord(1/5)
- Date
- 20. 1.2015 18:30:22
- Source
- Aslib journal of information management. 73(2021) no.1, S.129-143
-
Liu, D.-R.; Shih, M.-J.: Hybrid-patent classification based on patent-network analysis (2011)
0.01
0.013305585 = product of:
0.066527925 = sum of:
0.066527925 = sum of:
0.037730638 = weight(_text_:management in 4189) [ClassicSimilarity], result of:
0.037730638 = score(doc=4189,freq=4.0), product of:
0.14328322 = queryWeight, product of:
3.3706124 = idf(docFreq=4130, maxDocs=44218)
0.042509552 = queryNorm
0.2633291 = fieldWeight in 4189, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
3.3706124 = idf(docFreq=4130, maxDocs=44218)
0.0390625 = fieldNorm(doc=4189)
0.02879729 = weight(_text_:22 in 4189) [ClassicSimilarity], result of:
0.02879729 = score(doc=4189,freq=2.0), product of:
0.14886121 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.042509552 = queryNorm
0.19345059 = fieldWeight in 4189, 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=4189)
0.2 = coord(1/5)
- Abstract
- Effective patent management is essential for organizations to maintain their competitive advantage. The classification of patents is a critical part of patent management and industrial analysis. This study proposes a hybrid-patent-classification approach that combines a novel patent-network-based classification method with three conventional classification methods to analyze query patents and predict their classes. The novel patent network contains various types of nodes that represent different features extracted from patent documents. The nodes are connected based on the relationship metrics derived from the patent metadata. The proposed classification method predicts a query patent's class by analyzing all reachable nodes in the patent network and calculating their relevance to the query patent. It then classifies the query patent with a modified k-nearest neighbor classifier. To further improve the approach, we combine it with content-based, citation-based, and metadata-based classification methods to develop a hybrid-classification approach. We evaluate the performance of the hybrid approach on a test dataset of patent documents obtained from the U.S. Patent and Trademark Office, and compare its performance with that of the three conventional methods. The results demonstrate that the proposed patent-network-based approach yields more accurate class predictions than the patent network-based approach.
- Date
- 22. 1.2011 13:04:21
-
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)
0.01
0.011095377 = product of:
0.05547688 = sum of:
0.05547688 = sum of:
0.02667959 = weight(_text_:management in 2598) [ClassicSimilarity], result of:
0.02667959 = score(doc=2598,freq=2.0), product of:
0.14328322 = queryWeight, product of:
3.3706124 = idf(docFreq=4130, maxDocs=44218)
0.042509552 = queryNorm
0.18620178 = fieldWeight in 2598, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.3706124 = idf(docFreq=4130, maxDocs=44218)
0.0390625 = fieldNorm(doc=2598)
0.02879729 = weight(_text_:22 in 2598) [ClassicSimilarity], result of:
0.02879729 = score(doc=2598,freq=2.0), product of:
0.14886121 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.042509552 = 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)
0.2 = coord(1/5)
- Date
- 20. 1.2015 18:30:22
- Source
- Aslib journal of information management. 67(2015) no.3, S.260 - 288
-
Thelwall, M.: Are Mendeley reader counts high enough for research evaluations when articles are published? (2017)
0.01
0.011095377 = product of:
0.05547688 = sum of:
0.05547688 = sum of:
0.02667959 = weight(_text_:management in 3806) [ClassicSimilarity], result of:
0.02667959 = score(doc=3806,freq=2.0), product of:
0.14328322 = queryWeight, product of:
3.3706124 = idf(docFreq=4130, maxDocs=44218)
0.042509552 = queryNorm
0.18620178 = fieldWeight in 3806, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.3706124 = idf(docFreq=4130, maxDocs=44218)
0.0390625 = fieldNorm(doc=3806)
0.02879729 = weight(_text_:22 in 3806) [ClassicSimilarity], result of:
0.02879729 = score(doc=3806,freq=2.0), product of:
0.14886121 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.042509552 = queryNorm
0.19345059 = fieldWeight in 3806, 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=3806)
0.2 = coord(1/5)
- Date
- 20. 1.2015 18:30:22
- Source
- Aslib journal of information management. 69(2017) no.2, S.174-183
-
Ortega, J.L.: ¬The presence of academic journals on Twitter and its relationship with dissemination (tweets) and research impact (citations) (2017)
0.01
0.011095377 = product of:
0.05547688 = sum of:
0.05547688 = sum of:
0.02667959 = weight(_text_:management in 4410) [ClassicSimilarity], result of:
0.02667959 = score(doc=4410,freq=2.0), product of:
0.14328322 = queryWeight, product of:
3.3706124 = idf(docFreq=4130, maxDocs=44218)
0.042509552 = queryNorm
0.18620178 = fieldWeight in 4410, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.3706124 = idf(docFreq=4130, maxDocs=44218)
0.0390625 = fieldNorm(doc=4410)
0.02879729 = weight(_text_:22 in 4410) [ClassicSimilarity], result of:
0.02879729 = score(doc=4410,freq=2.0), product of:
0.14886121 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.042509552 = queryNorm
0.19345059 = fieldWeight in 4410, 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=4410)
0.2 = coord(1/5)
- Date
- 20. 1.2015 18:30:22
- Source
- Aslib journal of information management. 69(2017) no.6, S.674-687
-
Thelwall, M.; Thelwall, S.: ¬A thematic analysis of highly retweeted early COVID-19 tweets : consensus, information, dissent and lockdown life (2020)
0.01
0.011095377 = product of:
0.05547688 = sum of:
0.05547688 = sum of:
0.02667959 = weight(_text_:management in 178) [ClassicSimilarity], result of:
0.02667959 = score(doc=178,freq=2.0), product of:
0.14328322 = queryWeight, product of:
3.3706124 = idf(docFreq=4130, maxDocs=44218)
0.042509552 = queryNorm
0.18620178 = fieldWeight in 178, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.3706124 = idf(docFreq=4130, maxDocs=44218)
0.0390625 = fieldNorm(doc=178)
0.02879729 = weight(_text_:22 in 178) [ClassicSimilarity], result of:
0.02879729 = score(doc=178,freq=2.0), product of:
0.14886121 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.042509552 = 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)
0.2 = coord(1/5)
- Date
- 20. 1.2015 18:30:22
- Source
- Aslib journal of information management. 72(2020) no.6, S.945-962
-
Wang, S.; Ma, Y.; Mao, J.; Bai, Y.; Liang, Z.; Li, G.: Quantifying scientific breakthroughs by a novel disruption indicator based on knowledge entities : On the rise of scrape-and-report scholarship in online reviews research (2023)
0.01
0.011095377 = product of:
0.05547688 = sum of:
0.05547688 = sum of:
0.02667959 = weight(_text_:management in 882) [ClassicSimilarity], result of:
0.02667959 = score(doc=882,freq=2.0), product of:
0.14328322 = queryWeight, product of:
3.3706124 = idf(docFreq=4130, maxDocs=44218)
0.042509552 = queryNorm
0.18620178 = fieldWeight in 882, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.3706124 = idf(docFreq=4130, maxDocs=44218)
0.0390625 = fieldNorm(doc=882)
0.02879729 = weight(_text_:22 in 882) [ClassicSimilarity], result of:
0.02879729 = score(doc=882,freq=2.0), product of:
0.14886121 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.042509552 = queryNorm
0.19345059 = fieldWeight in 882, 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=882)
0.2 = coord(1/5)
- Abstract
- Compared to previous studies that generally detect scientific breakthroughs based on citation patterns, this article proposes a knowledge entity-based disruption indicator by quantifying the change of knowledge directly created and inspired by scientific breakthroughs to their evolutionary trajectories. Two groups of analytic units, including MeSH terms and their co-occurrences, are employed independently by the indicator to measure the change of knowledge. The effectiveness of the proposed indicators was evaluated against the four datasets of scientific breakthroughs derived from four recognition trials. In terms of identifying scientific breakthroughs, the proposed disruption indicator based on MeSH co-occurrences outperforms that based on MeSH terms and three earlier citation-based disruption indicators. It is also shown that in our indicator, measuring the change of knowledge inspired by the focal paper in its evolutionary trajectory is a larger contributor than measuring the change created by the focal paper. Our study not only offers empirical insights into conceptual understanding of scientific breakthroughs but also provides practical disruption indicator for scientists and science management agencies searching for valuable research.
- Date
- 22. 1.2023 18:37:33
-
Nicolaisen, J.: Citation analysis (2007)
0.01
0.009215132 = product of:
0.04607566 = sum of:
0.04607566 = product of:
0.09215132 = sum of:
0.09215132 = weight(_text_:22 in 6091) [ClassicSimilarity], result of:
0.09215132 = score(doc=6091,freq=2.0), product of:
0.14886121 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.042509552 = 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)
0.2 = coord(1/5)
- Date
- 13. 7.2008 19:53:22
-
Fiala, J.: Information flood : fiction and reality (1987)
0.01
0.009215132 = product of:
0.04607566 = sum of:
0.04607566 = product of:
0.09215132 = sum of:
0.09215132 = weight(_text_:22 in 1080) [ClassicSimilarity], result of:
0.09215132 = score(doc=1080,freq=2.0), product of:
0.14886121 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.042509552 = queryNorm
0.61904186 = fieldWeight in 1080, 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=1080)
0.5 = coord(1/2)
0.2 = coord(1/5)
- Source
- Thermochimica acta. 110(1987), S.11-22
-
Costas, R.; Perianes-Rodríguez, A.; Ruiz-Castillo, J.: On the quest for currencies of science : field "exchange rates" for citations and Mendeley readership (2017)
0.01
0.0088763 = product of:
0.044381503 = sum of:
0.044381503 = sum of:
0.021343673 = weight(_text_:management in 4051) [ClassicSimilarity], result of:
0.021343673 = score(doc=4051,freq=2.0), product of:
0.14328322 = queryWeight, product of:
3.3706124 = idf(docFreq=4130, maxDocs=44218)
0.042509552 = queryNorm
0.14896142 = fieldWeight in 4051, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.3706124 = idf(docFreq=4130, maxDocs=44218)
0.03125 = fieldNorm(doc=4051)
0.02303783 = weight(_text_:22 in 4051) [ClassicSimilarity], result of:
0.02303783 = score(doc=4051,freq=2.0), product of:
0.14886121 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.042509552 = 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)
0.2 = coord(1/5)
- Date
- 20. 1.2015 18:30:22
- Source
- Aslib journal of information management. 69(2017) no.5, S.557-575
-
Torres-Salinas, D.; Gorraiz, J.; Robinson-Garcia, N.: ¬The insoluble problems of books : what does Altmetric.com have to offer? (2018)
0.01
0.0088763 = product of:
0.044381503 = sum of:
0.044381503 = sum of:
0.021343673 = weight(_text_:management in 4633) [ClassicSimilarity], result of:
0.021343673 = score(doc=4633,freq=2.0), product of:
0.14328322 = queryWeight, product of:
3.3706124 = idf(docFreq=4130, maxDocs=44218)
0.042509552 = queryNorm
0.14896142 = fieldWeight in 4633, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.3706124 = idf(docFreq=4130, maxDocs=44218)
0.03125 = fieldNorm(doc=4633)
0.02303783 = weight(_text_:22 in 4633) [ClassicSimilarity], result of:
0.02303783 = score(doc=4633,freq=2.0), product of:
0.14886121 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.042509552 = queryNorm
0.15476047 = fieldWeight in 4633, 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=4633)
0.2 = coord(1/5)
- Date
- 20. 1.2015 18:30:22
- Source
- Aslib journal of information management. 70(2018) no.6, S.691-707
