-
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)
0.05
0.049627617 = product of:
0.099255234 = sum of:
0.099255234 = sum of:
0.062227704 = weight(_text_:c in 1352) [ClassicSimilarity], result of:
0.062227704 = score(doc=1352,freq=6.0), product of:
0.15711682 = queryWeight, product of:
3.4494052 = idf(docFreq=3817, maxDocs=44218)
0.045548957 = queryNorm
0.3960601 = fieldWeight in 1352, product of:
2.4494898 = tf(freq=6.0), with freq of:
6.0 = termFreq=6.0
3.4494052 = idf(docFreq=3817, maxDocs=44218)
0.046875 = fieldNorm(doc=1352)
0.037027527 = weight(_text_:22 in 1352) [ClassicSimilarity], result of:
0.037027527 = score(doc=1352,freq=2.0), product of:
0.15950468 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.045548957 = 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)
0.5 = coord(1/2)
- Date
- 22. 8.2014 17:11:29
-
Li, T.-C.: Reference sources in periodicals : research note (1995)
0.05
0.048636474 = product of:
0.09727295 = sum of:
0.09727295 = sum of:
0.04790291 = weight(_text_:c in 5092) [ClassicSimilarity], result of:
0.04790291 = score(doc=5092,freq=2.0), product of:
0.15711682 = queryWeight, product of:
3.4494052 = idf(docFreq=3817, maxDocs=44218)
0.045548957 = queryNorm
0.3048872 = fieldWeight in 5092, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.4494052 = idf(docFreq=3817, maxDocs=44218)
0.0625 = fieldNorm(doc=5092)
0.04937004 = weight(_text_:22 in 5092) [ClassicSimilarity], result of:
0.04937004 = score(doc=5092,freq=2.0), product of:
0.15950468 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.045548957 = queryNorm
0.30952093 = fieldWeight in 5092, 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=5092)
0.5 = coord(1/2)
- Abstract
- Presents a list of 53 periodicals in 22 subject fields which regularly provide bibliographies of theses, research in progress and patents in their particular subject field. The fields of business, economics, history and literature have most periodical listings of dissertations and theses. Also lists 63 periodicals in 25 sub-disciplines which provide rankings or ratings. Rankings and ratings information predominates in the fields of business, sports and games, finance and banking, and library and information science
-
Schlögl, C.: Internationale Sichtbarkeit der europäischen und insbesondere der deutschsprachigen Informationswissenschaft (2013)
0.04
0.04255691 = product of:
0.08511382 = sum of:
0.08511382 = sum of:
0.04191504 = weight(_text_:c in 900) [ClassicSimilarity], result of:
0.04191504 = score(doc=900,freq=2.0), product of:
0.15711682 = queryWeight, product of:
3.4494052 = idf(docFreq=3817, maxDocs=44218)
0.045548957 = queryNorm
0.2667763 = fieldWeight in 900, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.4494052 = idf(docFreq=3817, maxDocs=44218)
0.0546875 = fieldNorm(doc=900)
0.043198783 = weight(_text_:22 in 900) [ClassicSimilarity], result of:
0.043198783 = score(doc=900,freq=2.0), product of:
0.15950468 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.045548957 = queryNorm
0.2708308 = fieldWeight in 900, 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=900)
0.5 = coord(1/2)
- Date
- 22. 3.2013 14:04:09
-
Chen, C.: CiteSpace II : detecting and visualizing emerging trends and transient patterns in scientific literature (2006)
0.04
0.036598433 = product of:
0.073196866 = sum of:
0.073196866 = sum of:
0.04234059 = weight(_text_:c in 5272) [ClassicSimilarity], result of:
0.04234059 = score(doc=5272,freq=4.0), product of:
0.15711682 = queryWeight, product of:
3.4494052 = idf(docFreq=3817, maxDocs=44218)
0.045548957 = queryNorm
0.2694848 = fieldWeight in 5272, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
3.4494052 = idf(docFreq=3817, maxDocs=44218)
0.0390625 = fieldNorm(doc=5272)
0.030856274 = weight(_text_:22 in 5272) [ClassicSimilarity], result of:
0.030856274 = score(doc=5272,freq=2.0), product of:
0.15950468 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.045548957 = queryNorm
0.19345059 = fieldWeight in 5272, 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=5272)
0.5 = coord(1/2)
- Abstract
- This article describes the latest development of a generic approach to detecting and visualizing emerging trends and transient patterns in scientific literature. The work makes substantial theoretical and methodological contributions to progressive knowledge domain visualization. A specialty is conceptualized and visualized as a time-variant duality between two fundamental concepts in information science: research fronts and intellectual bases. A research front is defined as an emergent and transient grouping of concepts and underlying research issues. The intellectual base of a research front is its citation and co-citation footprint in scientific literature - an evolving network of scientific publications cited by research-front concepts. Kleinberg's (2002) burst-detection algorithm is adapted to identify emergent research-front concepts. Freeman's (1979) betweenness centrality metric is used to highlight potential pivotal points of paradigm shift over time. Two complementary visualization views are designed and implemented: cluster views and time-zone views. The contributions of the approach are that (a) the nature of an intellectual base is algorithmically and temporally identified by emergent research-front terms, (b) the value of a co-citation cluster is explicitly interpreted in terms of research-front concepts, and (c) visually prominent and algorithmically detected pivotal points substantially reduce the complexity of a visualized network. The modeling and visualization process is implemented in CiteSpace II, a Java application, and applied to the analysis of two research fields: mass extinction (1981-2004) and terrorism (1990-2003). Prominent trends and pivotal points in visualized networks were verified in collaboration with domain experts, who are the authors of pivotal-point articles. Practical implications of the work are discussed. A number of challenges and opportunities for future studies are identified.
- Date
- 22. 7.2006 16:11:05
-
D'Angelo, C.A.; Giuffrida, C.; Abramo, G.: ¬A heuristic approach to author name disambiguation in bibliometrics databases for large-scale research assessments (2011)
0.04
0.036477353 = product of:
0.07295471 = sum of:
0.07295471 = sum of:
0.03592718 = weight(_text_:c in 4190) [ClassicSimilarity], result of:
0.03592718 = score(doc=4190,freq=2.0), product of:
0.15711682 = queryWeight, product of:
3.4494052 = idf(docFreq=3817, maxDocs=44218)
0.045548957 = queryNorm
0.22866541 = fieldWeight in 4190, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.4494052 = idf(docFreq=3817, maxDocs=44218)
0.046875 = fieldNorm(doc=4190)
0.037027527 = weight(_text_:22 in 4190) [ClassicSimilarity], result of:
0.037027527 = score(doc=4190,freq=2.0), product of:
0.15950468 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.045548957 = queryNorm
0.23214069 = fieldWeight in 4190, 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=4190)
0.5 = coord(1/2)
- Date
- 22. 1.2011 13:06:52
-
Norris, M.; Oppenheim, C.: ¬The h-index : a broad review of a new bibliometric indicator (2010)
0.03
0.030397795 = product of:
0.06079559 = sum of:
0.06079559 = sum of:
0.029939316 = weight(_text_:c in 4147) [ClassicSimilarity], result of:
0.029939316 = score(doc=4147,freq=2.0), product of:
0.15711682 = queryWeight, product of:
3.4494052 = idf(docFreq=3817, maxDocs=44218)
0.045548957 = queryNorm
0.1905545 = fieldWeight in 4147, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.4494052 = idf(docFreq=3817, maxDocs=44218)
0.0390625 = fieldNorm(doc=4147)
0.030856274 = weight(_text_:22 in 4147) [ClassicSimilarity], result of:
0.030856274 = score(doc=4147,freq=2.0), product of:
0.15950468 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.045548957 = queryNorm
0.19345059 = fieldWeight in 4147, 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=4147)
0.5 = coord(1/2)
- Date
- 8. 1.2011 19:22:13
-
Leydesdorff, L.; Bornmann, L.: How fractional counting of citations affects the impact factor : normalization in terms of differences in citation potentials among fields of science (2011)
0.03
0.030397795 = product of:
0.06079559 = sum of:
0.06079559 = sum of:
0.029939316 = weight(_text_:c in 4186) [ClassicSimilarity], result of:
0.029939316 = score(doc=4186,freq=2.0), product of:
0.15711682 = queryWeight, product of:
3.4494052 = idf(docFreq=3817, maxDocs=44218)
0.045548957 = queryNorm
0.1905545 = fieldWeight in 4186, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.4494052 = idf(docFreq=3817, maxDocs=44218)
0.0390625 = fieldNorm(doc=4186)
0.030856274 = weight(_text_:22 in 4186) [ClassicSimilarity], result of:
0.030856274 = score(doc=4186,freq=2.0), product of:
0.15950468 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.045548957 = queryNorm
0.19345059 = fieldWeight in 4186, 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=4186)
0.5 = coord(1/2)
- Abstract
- The Impact Factors (IFs) of the Institute for Scientific Information suffer from a number of drawbacks, among them the statistics-Why should one use the mean and not the median?-and the incomparability among fields of science because of systematic differences in citation behavior among fields. Can these drawbacks be counteracted by fractionally counting citation weights instead of using whole numbers in the numerators? (a) Fractional citation counts are normalized in terms of the citing sources and thus would take into account differences in citation behavior among fields of science. (b) Differences in the resulting distributions can be tested statistically for their significance at different levels of aggregation. (c) Fractional counting can be generalized to any document set including journals or groups of journals, and thus the significance of differences among both small and large sets can be tested. A list of fractionally counted IFs for 2008 is available online at http:www.leydesdorff.net/weighted_if/weighted_if.xls The between-group variance among the 13 fields of science identified in the U.S. Science and Engineering Indicators is no longer statistically significant after this normalization. Although citation behavior differs largely between disciplines, the reflection of these differences in fractionally counted citation distributions can not be used as a reliable instrument for the classification.
- Date
- 22. 1.2011 12:51:07
-
Schubert, T.; Michels, C.: Placing articles in the large publisher nations : is there a "free lunch" in terms of higher impact? (2013)
0.03
0.030397795 = product of:
0.06079559 = sum of:
0.06079559 = sum of:
0.029939316 = weight(_text_:c in 669) [ClassicSimilarity], result of:
0.029939316 = score(doc=669,freq=2.0), product of:
0.15711682 = queryWeight, product of:
3.4494052 = idf(docFreq=3817, maxDocs=44218)
0.045548957 = queryNorm
0.1905545 = fieldWeight in 669, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.4494052 = idf(docFreq=3817, maxDocs=44218)
0.0390625 = fieldNorm(doc=669)
0.030856274 = weight(_text_:22 in 669) [ClassicSimilarity], result of:
0.030856274 = score(doc=669,freq=2.0), product of:
0.15950468 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.045548957 = queryNorm
0.19345059 = fieldWeight in 669, 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=669)
0.5 = coord(1/2)
- Date
- 22. 3.2013 19:45:49
-
Liu, S.; Chen, C.: ¬The differences between latent topics in abstracts and citation contexts of citing papers (2013)
0.03
0.030397795 = product of:
0.06079559 = sum of:
0.06079559 = sum of:
0.029939316 = weight(_text_:c in 671) [ClassicSimilarity], result of:
0.029939316 = score(doc=671,freq=2.0), product of:
0.15711682 = queryWeight, product of:
3.4494052 = idf(docFreq=3817, maxDocs=44218)
0.045548957 = queryNorm
0.1905545 = fieldWeight in 671, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.4494052 = idf(docFreq=3817, maxDocs=44218)
0.0390625 = fieldNorm(doc=671)
0.030856274 = weight(_text_:22 in 671) [ClassicSimilarity], result of:
0.030856274 = score(doc=671,freq=2.0), product of:
0.15950468 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.045548957 = queryNorm
0.19345059 = fieldWeight in 671, 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=671)
0.5 = coord(1/2)
- Date
- 22. 3.2013 19:50:00
-
Kuan, C.-H.; Liu, J.S.: ¬A new approach for main path analysis : decay in knowledge diffusion (2016)
0.03
0.030397795 = product of:
0.06079559 = sum of:
0.06079559 = sum of:
0.029939316 = weight(_text_:c in 2649) [ClassicSimilarity], result of:
0.029939316 = score(doc=2649,freq=2.0), product of:
0.15711682 = queryWeight, product of:
3.4494052 = idf(docFreq=3817, maxDocs=44218)
0.045548957 = queryNorm
0.1905545 = fieldWeight in 2649, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.4494052 = idf(docFreq=3817, maxDocs=44218)
0.0390625 = fieldNorm(doc=2649)
0.030856274 = weight(_text_:22 in 2649) [ClassicSimilarity], result of:
0.030856274 = score(doc=2649,freq=2.0), product of:
0.15950468 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.045548957 = queryNorm
0.19345059 = fieldWeight in 2649, 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=2649)
0.5 = coord(1/2)
- Date
- 22. 1.2016 14:23:00
-
Cerda-Cosme, R.; Méndez, E.: Analysis of shared research data in Spanish scientific papers about COVID-19 : a first approach (2023)
0.03
0.030397795 = product of:
0.06079559 = sum of:
0.06079559 = sum of:
0.029939316 = weight(_text_:c in 916) [ClassicSimilarity], result of:
0.029939316 = score(doc=916,freq=2.0), product of:
0.15711682 = queryWeight, product of:
3.4494052 = idf(docFreq=3817, maxDocs=44218)
0.045548957 = queryNorm
0.1905545 = fieldWeight in 916, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.4494052 = idf(docFreq=3817, maxDocs=44218)
0.0390625 = fieldNorm(doc=916)
0.030856274 = weight(_text_:22 in 916) [ClassicSimilarity], result of:
0.030856274 = score(doc=916,freq=2.0), product of:
0.15950468 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.045548957 = queryNorm
0.19345059 = fieldWeight in 916, 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=916)
0.5 = coord(1/2)
- Abstract
- During the coronavirus pandemic, changes in the way science is done and shared occurred, which motivates meta-research to help understand science communication in crises and improve its effectiveness. The objective is to study how many Spanish scientific papers on COVID-19 published during 2020 share their research data. Qualitative and descriptive study applying nine attributes: (a) availability, (b) accessibility, (c) format, (d) licensing, (e) linkage, (f) funding, (g) editorial policy, (h) content, and (i) statistics. We analyzed 1,340 papers, 1,173 (87.5%) did not have research data. A total of 12.5% share their research data of which 2.1% share their data in repositories, 5% share their data through a simple request, 0.2% do not have permission to share their data, and 5.2% share their data as supplementary material. There is a small percentage that shares their research data; however, it demonstrates the researchers' poor knowledge on how to properly share their research data and their lack of knowledge on what is research data.
- Date
- 21. 3.2023 19:22:02
-
Nicholls, P.T.: Empirical validation of Lotka's law (1986)
0.02
0.02468502 = product of:
0.04937004 = sum of:
0.04937004 = product of:
0.09874008 = sum of:
0.09874008 = weight(_text_:22 in 5509) [ClassicSimilarity], result of:
0.09874008 = score(doc=5509,freq=2.0), product of:
0.15950468 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.045548957 = 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
0.02468502 = product of:
0.04937004 = sum of:
0.04937004 = product of:
0.09874008 = sum of:
0.09874008 = weight(_text_:22 in 6091) [ClassicSimilarity], result of:
0.09874008 = score(doc=6091,freq=2.0), product of:
0.15950468 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.045548957 = 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
0.02468502 = product of:
0.04937004 = sum of:
0.04937004 = product of:
0.09874008 = sum of:
0.09874008 = weight(_text_:22 in 1080) [ClassicSimilarity], result of:
0.09874008 = score(doc=1080,freq=2.0), product of:
0.15950468 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.045548957 = 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
-
Tonta, Y.; Ünal, Y.: Scatter of journals and literature obsolescence reflected in document delivery requests (2005)
0.02
0.024318237 = product of:
0.048636474 = sum of:
0.048636474 = sum of:
0.023951454 = weight(_text_:c in 3271) [ClassicSimilarity], result of:
0.023951454 = score(doc=3271,freq=2.0), product of:
0.15711682 = queryWeight, product of:
3.4494052 = idf(docFreq=3817, maxDocs=44218)
0.045548957 = queryNorm
0.1524436 = fieldWeight in 3271, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.4494052 = idf(docFreq=3817, maxDocs=44218)
0.03125 = fieldNorm(doc=3271)
0.02468502 = weight(_text_:22 in 3271) [ClassicSimilarity], result of:
0.02468502 = score(doc=3271,freq=2.0), product of:
0.15950468 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.045548957 = queryNorm
0.15476047 = fieldWeight in 3271, 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=3271)
0.5 = coord(1/2)
- Abstract
- In this paper we investigate the scattering of journals and literature obsolescence reflected in more than 137,000 document delivery requests submitted to a national document delivery service. We first summarize the major findings of the study with regards to the performance of the service. We then identify the "core" journals from which article requests were satisfied and address the following research questions: (a) Does the distribution of (core) journals conform to the Bradford's Law of Scattering? (b) Is there a relationship between usage of journals and impact factors, journals with high impact factors being used more often than the rest? (c) Is there a relationship between usage of journals and total citation counts, journals with high total citation counts being used more often than the rest? (d) What is the median age of use (half-life) of requested articles in general? (e) Do requested articles that appear in core journals get obsolete more slowly? (f) Is there a relationship between obsolescence and journal impact factors, journals with high impact factors being obsolete more slowly? (g) Is there a relationship between obsolescence and total citation counts, journals with high total citation counts being obsolete more slowly? Based an the analysis of findings, we found that the distribution of highly and moderately used journal titles conform to Bradford's Law. The median age of use was 8 years for all requested articles. Ninety percent of the articles requested were 21 years of age or younger. Articles that appeared in 168 core journal titles seem to get obsolete slightly more slowly than those of all titles. We observed no statistically significant correlations between the frequency of journal use and ISI journal impact factors, and between the frequency of journal use and ISI- (Institute for Scientific Information, Philadelphia, PA) cited half-lives for the most heavily used 168 core journal titles. There was a weak correlation between usage of journals and ISI-reported total citation counts. No statistically significant relationship was found between median age of use and journal impact factors and between median age of use and total citation counts. There was a weak negative correlation between ISI journal impact factors and cited half-lives of 168 core journals, and a weak correlation between ISI citation halflives and use half-lives of core journals. No correlation was found between cited half-lives of 168 core journals and their corresponding total citation counts as reported by ISI. Findings of the current study are discussed along with those of other studies.
- Date
- 20. 3.2005 10:54:22
-
Su, Y.; Han, L.-F.: ¬A new literature growth model : variable exponential growth law of literature (1998)
0.02
0.02181868 = product of:
0.04363736 = sum of:
0.04363736 = product of:
0.08727472 = sum of:
0.08727472 = weight(_text_:22 in 3690) [ClassicSimilarity], result of:
0.08727472 = score(doc=3690,freq=4.0), product of:
0.15950468 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.045548957 = 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
0.02181868 = product of:
0.04363736 = sum of:
0.04363736 = product of:
0.08727472 = sum of:
0.08727472 = weight(_text_:22 in 3925) [ClassicSimilarity], result of:
0.08727472 = score(doc=3925,freq=4.0), product of:
0.15950468 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.045548957 = 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
0.021599391 = product of:
0.043198783 = sum of:
0.043198783 = product of:
0.086397566 = sum of:
0.086397566 = weight(_text_:22 in 5666) [ClassicSimilarity], result of:
0.086397566 = score(doc=5666,freq=2.0), product of:
0.15950468 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.045548957 = 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
0.021599391 = product of:
0.043198783 = sum of:
0.043198783 = product of:
0.086397566 = sum of:
0.086397566 = weight(_text_:22 in 6902) [ClassicSimilarity], result of:
0.086397566 = score(doc=6902,freq=2.0), product of:
0.15950468 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.045548957 = 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
0.021599391 = product of:
0.043198783 = sum of:
0.043198783 = product of:
0.086397566 = sum of:
0.086397566 = weight(_text_:22 in 4689) [ClassicSimilarity], result of:
0.086397566 = score(doc=4689,freq=2.0), product of:
0.15950468 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.045548957 = 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
