-
Mommoh, O.M.: Subject analysis of post-graduate theses in library, archival and information science at Ahmadu Bello University, Zaria (1995/96)
0.07
0.065007165 = product of:
0.13001433 = sum of:
0.13001433 = sum of:
0.08151547 = weight(_text_:1991 in 673) [ClassicSimilarity], result of:
0.08151547 = score(doc=673,freq=2.0), product of:
0.20314015 = queryWeight, product of:
4.539931 = idf(docFreq=1282, maxDocs=44218)
0.04474521 = queryNorm
0.40127698 = fieldWeight in 673, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
4.539931 = idf(docFreq=1282, maxDocs=44218)
0.0625 = fieldNorm(doc=673)
0.04849887 = weight(_text_:22 in 673) [ClassicSimilarity], result of:
0.04849887 = score(doc=673,freq=2.0), product of:
0.1566901 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.04474521 = queryNorm
0.30952093 = fieldWeight in 673, 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=673)
0.5 = coord(1/2)
- Abstract
- Reports results of a bibliometric study of 111 theses accepted by the Department of Library and Information Science, Ahmadu Bello University, Zaria, Nigeria, between 1977 and 1992. The analysis was based on year, type and degree awarded, subject, type of library and geographical area. Concludes that the highest number of submissions was 1991, when 108 MLS theses (97,29%) and 3 PhD theses (2,71%) were accepted. Libraries and readers was the most concetrated subject while the academic library was the most discussed type of library
- Source
- Library focus. 13/14(1995/96), S.22-25
-
Khurshid, A.; Sahai, H.: Bibliometric, scientometric and informetric distributions and laws : a selected bibliography (1991)
0.06
0.05638818 = product of:
0.11277636 = sum of:
0.11277636 = product of:
0.22555272 = sum of:
0.22555272 = weight(_text_:1991 in 5054) [ClassicSimilarity], result of:
0.22555272 = score(doc=5054,freq=5.0), product of:
0.20314015 = queryWeight, product of:
4.539931 = idf(docFreq=1282, maxDocs=44218)
0.04474521 = queryNorm
1.1103306 = fieldWeight in 5054, product of:
2.236068 = tf(freq=5.0), with freq of:
5.0 = termFreq=5.0
4.539931 = idf(docFreq=1282, maxDocs=44218)
0.109375 = fieldNorm(doc=5054)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Source
- International forum on information and documentation. 16(1991) no.2, S.18-29
- Year
- 1991
-
Informetrics '91 : selected papers from the 3rd International Conference on Bibliometrics, 9-12 Aug. 1991, Bangalore (1993)
0.03
0.030568302 = product of:
0.061136603 = sum of:
0.061136603 = product of:
0.12227321 = sum of:
0.12227321 = weight(_text_:1991 in 5063) [ClassicSimilarity], result of:
0.12227321 = score(doc=5063,freq=2.0), product of:
0.20314015 = queryWeight, product of:
4.539931 = idf(docFreq=1282, maxDocs=44218)
0.04474521 = queryNorm
0.6019155 = fieldWeight in 5063, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
4.539931 = idf(docFreq=1282, maxDocs=44218)
0.09375 = fieldNorm(doc=5063)
0.5 = coord(1/2)
0.5 = coord(1/2)
-
Stock, W.: Informetrische Vermessung der Forschung und Entwicklung eines Landes : beispielhafte Resultate und Probleme (1992)
0.03
0.025473583 = product of:
0.050947167 = sum of:
0.050947167 = product of:
0.101894334 = sum of:
0.101894334 = weight(_text_:1991 in 342) [ClassicSimilarity], result of:
0.101894334 = score(doc=342,freq=2.0), product of:
0.20314015 = queryWeight, product of:
4.539931 = idf(docFreq=1282, maxDocs=44218)
0.04474521 = queryNorm
0.5015962 = fieldWeight in 342, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
4.539931 = idf(docFreq=1282, maxDocs=44218)
0.078125 = fieldNorm(doc=342)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Source
- Information und Dokumentation in den 90er Jahren: neue Herausforderung, neue Technologien. Deutscher Dokumentartag 1991, Universität Ulm, 30.9.-2.10.1991. Hrsg.: W. Neubauer u. K.-H. Meier
-
Nicholls, P.T.: Empirical validation of Lotka's law (1986)
0.02
0.024249434 = product of:
0.04849887 = sum of:
0.04849887 = product of:
0.09699774 = sum of:
0.09699774 = weight(_text_:22 in 5509) [ClassicSimilarity], result of:
0.09699774 = score(doc=5509,freq=2.0), product of:
0.1566901 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.04474521 = 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)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Source
- Information processing and management. 22(1986), S.417-419
-
Nicolaisen, J.: Citation analysis (2007)
0.02
0.024249434 = product of:
0.04849887 = sum of:
0.04849887 = product of:
0.09699774 = sum of:
0.09699774 = weight(_text_:22 in 6091) [ClassicSimilarity], result of:
0.09699774 = score(doc=6091,freq=2.0), product of:
0.1566901 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.04474521 = 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)
0.5 = coord(1/2)
- Date
- 13. 7.2008 19:53:22
-
Fiala, J.: Information flood : fiction and reality (1987)
0.02
0.024249434 = product of:
0.04849887 = sum of:
0.04849887 = product of:
0.09699774 = sum of:
0.09699774 = weight(_text_:22 in 1080) [ClassicSimilarity], result of:
0.09699774 = score(doc=1080,freq=2.0), product of:
0.1566901 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.04474521 = 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)
0.5 = coord(1/2)
- Source
- Thermochimica acta. 110(1987), S.11-22
-
Zhang, Q.; Xue, H.; Tang, H.: Knowledge domain and emerging trends in vulnerability assessment in the context of climate change : a bibliometric analysis (1991-2017) (2018)
0.02
0.02206077 = product of:
0.04412154 = sum of:
0.04412154 = product of:
0.08824308 = sum of:
0.08824308 = weight(_text_:1991 in 4534) [ClassicSimilarity], result of:
0.08824308 = score(doc=4534,freq=6.0), product of:
0.20314015 = queryWeight, product of:
4.539931 = idf(docFreq=1282, maxDocs=44218)
0.04474521 = queryNorm
0.43439507 = fieldWeight in 4534, product of:
2.4494898 = tf(freq=6.0), with freq of:
6.0 = termFreq=6.0
4.539931 = idf(docFreq=1282, maxDocs=44218)
0.0390625 = fieldNorm(doc=4534)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Abstract
- Analysis of the knowledge structure and the evolution of research topics in specific areas has been the focus of information science (IS). Such analysis helps to enrich interested researchers' understanding of the functions, activities and evolving constraints of the knowledge domain. This study aims to investigate the knowledge domain associated with the vulnerability assessment in the context of climate change (VACC) research in this fast-growing field between January 1991 and December 2017. A bibliometric approach, along with CiteSpace software, was used to identify and visualize thematic patterns, landmark articles and emerging trends. The data used for the bibliometric analysis include 6,584 original research articles and reviews published between 1991 and 2017. The results indicate that the number of documents pertaining to VACC presented a general growth trend over the last twenty-seven years. Climatic Change was the most productive journal. Among countries, the USA, England and Australia predominated, and the University of Chinese Academy of Sciences and U.S. Geological Survey were the two institutions with the largest amount of VACC research. Existing studies in the field of VACC research have focused primarily on environmental sciences. Importantly, emerging trends in VACC research have shifted away from vulnerability assessments of natural ecosystems based on model simulation methods in the context of climate change toward indicator-based assessments of social ecosystem vulnerability, adaptive capacity and resilience under multidimensional stressors and shocks, which are likely to define the new frontier in the field of VACC research.
-
Su, Y.; Han, L.-F.: ¬A new literature growth model : variable exponential growth law of literature (1998)
0.02
0.021433674 = product of:
0.042867348 = sum of:
0.042867348 = product of:
0.085734695 = sum of:
0.085734695 = weight(_text_:22 in 3690) [ClassicSimilarity], result of:
0.085734695 = score(doc=3690,freq=4.0), product of:
0.1566901 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.04474521 = queryNorm
0.54716086 = fieldWeight in 3690, 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=3690)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Date
- 22. 5.1999 19:22:35
-
Van der Veer Martens, B.: Do citation systems represent theories of truth? (2001)
0.02
0.021433674 = product of:
0.042867348 = sum of:
0.042867348 = product of:
0.085734695 = sum of:
0.085734695 = weight(_text_:22 in 3925) [ClassicSimilarity], result of:
0.085734695 = score(doc=3925,freq=4.0), product of:
0.1566901 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.04474521 = 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)
0.5 = coord(1/2)
- Date
- 22. 7.2006 15:22:28
-
Diodato, V.: Dictionary of bibliometrics (1994)
0.02
0.021218253 = product of:
0.042436507 = sum of:
0.042436507 = product of:
0.08487301 = sum of:
0.08487301 = weight(_text_:22 in 5666) [ClassicSimilarity], result of:
0.08487301 = score(doc=5666,freq=2.0), product of:
0.1566901 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.04474521 = 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)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Footnote
- Rez. in: Journal of library and information science 22(1996) no.2, S.116-117 (L.C. Smith)
-
Bookstein, A.: Informetric distributions : I. Unified overview (1990)
0.02
0.021218253 = product of:
0.042436507 = sum of:
0.042436507 = product of:
0.08487301 = sum of:
0.08487301 = weight(_text_:22 in 6902) [ClassicSimilarity], result of:
0.08487301 = score(doc=6902,freq=2.0), product of:
0.1566901 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.04474521 = 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)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Date
- 22. 7.2006 18:55:29
-
Bookstein, A.: Informetric distributions : II. Resilience to ambiguity (1990)
0.02
0.021218253 = product of:
0.042436507 = sum of:
0.042436507 = product of:
0.08487301 = sum of:
0.08487301 = weight(_text_:22 in 4689) [ClassicSimilarity], result of:
0.08487301 = score(doc=4689,freq=2.0), product of:
0.1566901 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.04474521 = queryNorm
0.5416616 = fieldWeight in 4689, 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=4689)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Date
- 22. 7.2006 18:55:55
-
Cronin, B.: Acknowledgement trends in the research literature of information science (2001)
0.02
0.020378867 = product of:
0.040757734 = sum of:
0.040757734 = product of:
0.08151547 = sum of:
0.08151547 = weight(_text_:1991 in 4488) [ClassicSimilarity], result of:
0.08151547 = score(doc=4488,freq=2.0), product of:
0.20314015 = queryWeight, product of:
4.539931 = idf(docFreq=1282, maxDocs=44218)
0.04474521 = queryNorm
0.40127698 = fieldWeight in 4488, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
4.539931 = idf(docFreq=1282, maxDocs=44218)
0.0625 = fieldNorm(doc=4488)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Abstract
- Data were gathered on acknowledgements in five leading information science journals for the years 1991-1999. The results were compared with data from two earlier studies of the same journals. Analysis of the aggregate data (1971-1999) confirms the general impression that acknowledgement has become an institutionalised element of the scholarly communication process, reflecting the growing cognitive and structural complexity of contemporary research.
-
Lewison, G.: ¬The work of the Bibliometrics Research Group (City University) and associates (2005)
0.02
0.018187074 = product of:
0.036374148 = sum of:
0.036374148 = product of:
0.072748296 = sum of:
0.072748296 = weight(_text_:22 in 4890) [ClassicSimilarity], result of:
0.072748296 = score(doc=4890,freq=2.0), product of:
0.1566901 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.04474521 = queryNorm
0.46428138 = fieldWeight in 4890, 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=4890)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Date
- 20. 1.2007 17:02:22
-
Marx, W.; Bornmann, L.: On the problems of dealing with bibliometric data (2014)
0.02
0.018187074 = product of:
0.036374148 = sum of:
0.036374148 = product of:
0.072748296 = sum of:
0.072748296 = weight(_text_:22 in 1239) [ClassicSimilarity], result of:
0.072748296 = score(doc=1239,freq=2.0), product of:
0.1566901 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.04474521 = queryNorm
0.46428138 = fieldWeight in 1239, 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=1239)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Date
- 18. 3.2014 19:13:22
-
Diaz, I.G.; Aguilar, G.S.: Bibliometria comparada sobre tecnologia de informacion : diez anos en la base de datos ERIC (1995)
0.02
0.017831508 = product of:
0.035663016 = sum of:
0.035663016 = product of:
0.07132603 = sum of:
0.07132603 = weight(_text_:1991 in 6388) [ClassicSimilarity], result of:
0.07132603 = score(doc=6388,freq=2.0), product of:
0.20314015 = queryWeight, product of:
4.539931 = idf(docFreq=1282, maxDocs=44218)
0.04474521 = queryNorm
0.35111734 = fieldWeight in 6388, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
4.539931 = idf(docFreq=1282, maxDocs=44218)
0.0546875 = fieldNorm(doc=6388)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Abstract
- Reports results of an automated search of the term 'information technology' and 20 related terms in the ERIC database, 1982-1991, which revealed data related to: scientific production relating to information technology; core journals; types of documents; types of authors and their output; sponsoring institutions; publishing output by country; desciptors; and related terms. The following bibliometric laws are applied: Bradford's law; Lotka's law; and Spearman's and Pearson's laws. Provides an insight into the role of bibliometrics as a scientific discipline for the study of the development of new technologies and their impact on information activity
-
Rotto, E.; Morgan, R.P.: ¬An exploration of expert based text analysis techniques for assessing industrial relevance in US engineering dissertation abstracts (1997)
0.02
0.017831508 = product of:
0.035663016 = sum of:
0.035663016 = product of:
0.07132603 = sum of:
0.07132603 = weight(_text_:1991 in 465) [ClassicSimilarity], result of:
0.07132603 = score(doc=465,freq=2.0), product of:
0.20314015 = queryWeight, product of:
4.539931 = idf(docFreq=1282, maxDocs=44218)
0.04474521 = queryNorm
0.35111734 = fieldWeight in 465, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
4.539931 = idf(docFreq=1282, maxDocs=44218)
0.0546875 = fieldNorm(doc=465)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Abstract
- Describes exploratory research into the application of computerized text anaylsis techniques to all US engineering doctoral dissertation abstracts dated 1981, 1986 and 1991. Experts categorized abstracts by industrial relevance, and identified appropriate non technology specific word indicators within the abstracts. Word frequency and cluster analysis techniques were also explored for their potential utility in identifying technology related word indicators of industrial relevance. Results suggest that text analysis of engineering dissertation abstracts holds potential utility for identifying industrially relevant university based engineering research, when used in conjunction with expert input and feedback
-
Burrell, Q.L.: Egghe's construction of Lorenz curves resolved (2007)
0.02
0.015284151 = product of:
0.030568302 = sum of:
0.030568302 = product of:
0.061136603 = sum of:
0.061136603 = weight(_text_:1991 in 624) [ClassicSimilarity], result of:
0.061136603 = score(doc=624,freq=2.0), product of:
0.20314015 = queryWeight, product of:
4.539931 = idf(docFreq=1282, maxDocs=44218)
0.04474521 = queryNorm
0.30095774 = fieldWeight in 624, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
4.539931 = idf(docFreq=1282, maxDocs=44218)
0.046875 = fieldNorm(doc=624)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Abstract
- In a recent article (Burrell, 2006), the author pointed out that the version of Lorenz concentration theory presented by Egghe (2005a, 2005b) does not conform to the classical statistical/econometric approach. Rousseau (2007) asserts confusion on our part and a failure to grasp Egghe's construction, even though we simply reported what Egghe stated. Here the author shows that Egghe's construction rather than including the standard case, as claimed by Rousseau, actually leads to the Leimkuhler curve of the dual function, in the sense of Egghe. (Note that here we distinguish between the Lorenz curve, a convex form arising from ranking from smallest to largest, and the Leimkuhler curve, a concave form arising from ranking from largest to smallest. The two presentations are equivalent. See Burrell, 1991, 2005; Rousseau, 2007.)
-
Raan, A.F.J. van: Statistical properties of bibliometric indicators : research group indicator distributions and correlations (2006)
0.01
0.012860205 = product of:
0.02572041 = sum of:
0.02572041 = product of:
0.05144082 = sum of:
0.05144082 = weight(_text_:22 in 5275) [ClassicSimilarity], result of:
0.05144082 = score(doc=5275,freq=4.0), product of:
0.1566901 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.04474521 = queryNorm
0.32829654 = fieldWeight in 5275, 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=5275)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Date
- 22. 7.2006 16:20:22
