-
Williams, R.M.: ISI search network research front specialities (1983)
0.05
0.048233014 = product of:
0.14469904 = sum of:
0.14469904 = product of:
0.21704856 = sum of:
0.13365632 = weight(_text_:network in 445) [ClassicSimilarity], result of:
0.13365632 = score(doc=445,freq=2.0), product of:
0.19402927 = queryWeight, product of:
4.4533744 = idf(docFreq=1398, maxDocs=44218)
0.043569047 = queryNorm
0.6888462 = fieldWeight in 445, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
4.4533744 = idf(docFreq=1398, maxDocs=44218)
0.109375 = fieldNorm(doc=445)
0.083392225 = weight(_text_:29 in 445) [ClassicSimilarity], result of:
0.083392225 = score(doc=445,freq=2.0), product of:
0.15326229 = queryWeight, product of:
3.5176873 = idf(docFreq=3565, maxDocs=44218)
0.043569047 = queryNorm
0.5441145 = fieldWeight in 445, 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=445)
0.6666667 = coord(2/3)
0.33333334 = coord(1/3)
- Source
- Deutscher Dokumentartag 1982, Lübeck-Travemünde, 29.-30.9.1982: Fachinformation im Zeitalter der Informationsindustrie. Bearb.: H. Strohl-Goebel
-
Ma, N.; Guan, J.; Zhao, Y.: Bringing PageRank to the citation analysis (2008)
0.02
0.020599846 = product of:
0.061799537 = sum of:
0.061799537 = product of:
0.092699304 = sum of:
0.057281278 = weight(_text_:network in 2064) [ClassicSimilarity], result of:
0.057281278 = score(doc=2064,freq=2.0), product of:
0.19402927 = queryWeight, product of:
4.4533744 = idf(docFreq=1398, maxDocs=44218)
0.043569047 = queryNorm
0.29521978 = fieldWeight in 2064, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
4.4533744 = idf(docFreq=1398, maxDocs=44218)
0.046875 = fieldNorm(doc=2064)
0.035418026 = weight(_text_:22 in 2064) [ClassicSimilarity], result of:
0.035418026 = score(doc=2064,freq=2.0), product of:
0.15257138 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.043569047 = queryNorm
0.23214069 = fieldWeight in 2064, 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=2064)
0.6666667 = coord(2/3)
0.33333334 = coord(1/3)
- Abstract
- The paper attempts to provide an alternative method for measuring the importance of scientific papers based on the Google's PageRank. The method is a meaningful extension of the common integer counting of citations and is then experimented for bringing PageRank to the citation analysis in a large citation network. It offers a more integrated picture of the publications' influence in a specific field. We firstly calculate the PageRanks of scientific papers. The distributional characteristics and comparison with the traditionally used number of citations are then analyzed in detail. Furthermore, the PageRank is implemented in the evaluation of research influence for several countries in the field of Biochemistry and Molecular Biology during the time period of 2000-2005. Finally, some advantages of bringing PageRank to the citation analysis are concluded.
- Date
- 31. 7.2008 14:22:05
-
Williams, R.M.: ISI search network research front specialties (1983)
0.02
0.016972233 = product of:
0.050916698 = sum of:
0.050916698 = product of:
0.15275009 = sum of:
0.15275009 = weight(_text_:network in 1474) [ClassicSimilarity], result of:
0.15275009 = score(doc=1474,freq=2.0), product of:
0.19402927 = queryWeight, product of:
4.4533744 = idf(docFreq=1398, maxDocs=44218)
0.043569047 = queryNorm
0.7872528 = fieldWeight in 1474, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
4.4533744 = idf(docFreq=1398, maxDocs=44218)
0.125 = fieldNorm(doc=1474)
0.33333334 = coord(1/3)
0.33333334 = coord(1/3)
-
Larsen, B.: Exploiting citation overlaps for information retrieval : generating a boomerang effect from the network of scientific papers (2002)
0.01
0.0127291735 = product of:
0.03818752 = sum of:
0.03818752 = product of:
0.114562556 = sum of:
0.114562556 = weight(_text_:network in 4175) [ClassicSimilarity], result of:
0.114562556 = score(doc=4175,freq=2.0), product of:
0.19402927 = queryWeight, product of:
4.4533744 = idf(docFreq=1398, maxDocs=44218)
0.043569047 = queryNorm
0.59043956 = fieldWeight in 4175, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
4.4533744 = idf(docFreq=1398, maxDocs=44218)
0.09375 = fieldNorm(doc=4175)
0.33333334 = coord(1/3)
0.33333334 = coord(1/3)
-
Jiang, X.; Liu, J.: Extracting the evolutionary backbone of scientific domains : the semantic main path network analysis approach based on citation context analysis (2023)
0.01
0.0118597075 = product of:
0.035579123 = sum of:
0.035579123 = product of:
0.10673737 = sum of:
0.10673737 = weight(_text_:network in 948) [ClassicSimilarity], result of:
0.10673737 = score(doc=948,freq=10.0), product of:
0.19402927 = queryWeight, product of:
4.4533744 = idf(docFreq=1398, maxDocs=44218)
0.043569047 = queryNorm
0.5501096 = fieldWeight in 948, product of:
3.1622777 = tf(freq=10.0), with freq of:
10.0 = termFreq=10.0
4.4533744 = idf(docFreq=1398, maxDocs=44218)
0.0390625 = fieldNorm(doc=948)
0.33333334 = coord(1/3)
0.33333334 = coord(1/3)
- Abstract
- Main path analysis is a popular method for extracting the scientific backbone from the citation network of a research domain. Existing approaches ignored the semantic relationships between the citing and cited publications, resulting in several adverse issues, in terms of coherence of main paths and coverage of significant studies. This paper advocated the semantic main path network analysis approach to alleviate these issues based on citation function analysis. A wide variety of SciBERT-based deep learning models were designed for identifying citation functions. Semantic citation networks were built by either including important citations, for example, extension, motivation, usage and similarity, or excluding incidental citations like background and future work. Semantic main path network was built by merging the top-K main paths extracted from various time slices of semantic citation network. In addition, a three-way framework was proposed for the quantitative evaluation of main path analysis results. Both qualitative and quantitative analysis on three research areas of computational linguistics demonstrated that, compared to semantics-agnostic counterparts, different types of semantic main path networks provide complementary views of scientific knowledge flows. Combining them together, we obtained a more precise and comprehensive picture of domain evolution and uncover more coherent development pathways between scientific ideas.
-
Johnson, B.; Oppenheim, C.: How socially connected are citers to those that they cite? (2007)
0.01
0.010607645 = product of:
0.031822935 = sum of:
0.031822935 = product of:
0.095468804 = sum of:
0.095468804 = weight(_text_:network in 839) [ClassicSimilarity], result of:
0.095468804 = score(doc=839,freq=8.0), product of:
0.19402927 = queryWeight, product of:
4.4533744 = idf(docFreq=1398, maxDocs=44218)
0.043569047 = queryNorm
0.492033 = fieldWeight in 839, product of:
2.828427 = tf(freq=8.0), with freq of:
8.0 = termFreq=8.0
4.4533744 = idf(docFreq=1398, maxDocs=44218)
0.0390625 = fieldNorm(doc=839)
0.33333334 = coord(1/3)
0.33333334 = coord(1/3)
- Abstract
- Purpose - The purpose of this paper is to report an investigation into the social and citation networks of three information scientists: David Nicholas, Peter Williams and Paul Huntington. Design/methodology/approach - Similarities between citation patterns and social closeness were identified and discussed. A total of 16 individuals in the citation network were identified and investigated using citation analysis, and a matrix formed of citations made between those in the network. Social connections between the 16 in the citation network were then investigated by means of a questionnaire, the results of which were merged into a separate matrix. These matrices were converted into visual social networks, using multidimensional scaling. A new deviance measure was devised for drawing comparisons between social and citation closeness in individual cases. Findings - Nicholas, Williams and Huntington were found to have cited 527 authors in the period 2000-2003, the 16 most cited becoming the subjects of further citation and social investigation. This comparison, along with the examination of visual representations indicates a positive correlation between social closeness and citation counts. Possible explanations for this correlation are discussed, and implications considered. Despite this correlation, the information scientists were found to cite widely outside their immediate social connections. Originality/value - Social network analysis has not been often used in combination with citation analysis to explore inter-relationships in research teams.
-
Leydesdorff, L.: Theories of citation? (1999)
0.01
0.010501034 = product of:
0.0315031 = sum of:
0.0315031 = product of:
0.094509296 = sum of:
0.094509296 = weight(_text_:network in 5130) [ClassicSimilarity], result of:
0.094509296 = score(doc=5130,freq=4.0), product of:
0.19402927 = queryWeight, product of:
4.4533744 = idf(docFreq=1398, maxDocs=44218)
0.043569047 = queryNorm
0.48708782 = fieldWeight in 5130, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
4.4533744 = idf(docFreq=1398, maxDocs=44218)
0.0546875 = fieldNorm(doc=5130)
0.33333334 = coord(1/3)
0.33333334 = coord(1/3)
- Abstract
- Citations support the communication of specialist knowledge by allowing authors and readers to make specific selections in several contexts at the same time. In the interactions between the social network of authors and the network of their reflexive communications, a sub textual code of communication with a distributed character has emerged. Citation analysis reflects on citation practices. Reference lists are aggregated in scientometric analysis using one of the available contexts to reduce the complexity: geometrical representations of dynamic operations are reflected in corresponding theories of citation. The specific contexts represented in the modern citation can be deconstructed from the perspective of the cultural evolution of scientific communication
-
Nicolaisen, J.: Citation analysis (2007)
0.01
0.01049423 = product of:
0.03148269 = sum of:
0.03148269 = product of:
0.09444807 = sum of:
0.09444807 = weight(_text_:22 in 6091) [ClassicSimilarity], result of:
0.09444807 = score(doc=6091,freq=2.0), product of:
0.15257138 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.043569047 = 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)
0.33333334 = coord(1/3)
0.33333334 = coord(1/3)
- Date
- 13. 7.2008 19:53:22
-
Døsen, K.: One more reference on self-reference (1992)
0.01
0.01049423 = product of:
0.03148269 = sum of:
0.03148269 = product of:
0.09444807 = sum of:
0.09444807 = weight(_text_:22 in 4604) [ClassicSimilarity], result of:
0.09444807 = score(doc=4604,freq=2.0), product of:
0.15257138 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.043569047 = queryNorm
0.61904186 = fieldWeight in 4604, 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=4604)
0.33333334 = coord(1/3)
0.33333334 = coord(1/3)
- Date
- 7. 2.2005 14:10:22
-
Van der Veer Martens, B.: Do citation systems represent theories of truth? (2001)
0.01
0.009275677 = product of:
0.02782703 = sum of:
0.02782703 = product of:
0.08348109 = sum of:
0.08348109 = weight(_text_:22 in 3925) [ClassicSimilarity], result of:
0.08348109 = score(doc=3925,freq=4.0), product of:
0.15257138 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.043569047 = 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)
0.33333334 = coord(1/3)
0.33333334 = coord(1/3)
- Date
- 22. 7.2006 15:22:28
-
Remler, A.: Lässt sich wissenschaftliche Leistung messen? : Wer zitiert wird, liegt vorne - in den USA berechnet man Forschungsleistung nach einem Zitat-Index (2000)
0.01
0.009265803 = product of:
0.027797408 = sum of:
0.027797408 = product of:
0.083392225 = sum of:
0.083392225 = weight(_text_:29 in 5392) [ClassicSimilarity], result of:
0.083392225 = score(doc=5392,freq=2.0), product of:
0.15326229 = queryWeight, product of:
3.5176873 = idf(docFreq=3565, maxDocs=44218)
0.043569047 = queryNorm
0.5441145 = fieldWeight in 5392, 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=5392)
0.33333334 = coord(1/3)
0.33333334 = coord(1/3)
- Date
- 30.10.2000 17:47:29
-
Chen, C.; Cribbin, T.; Macredie, R.; Morar, S.: Visualizing and tracking the growth of competing paradigms : two case studies (2002)
0.01
0.009000885 = product of:
0.027002655 = sum of:
0.027002655 = product of:
0.081007965 = sum of:
0.081007965 = weight(_text_:network in 602) [ClassicSimilarity], result of:
0.081007965 = score(doc=602,freq=4.0), product of:
0.19402927 = queryWeight, product of:
4.4533744 = idf(docFreq=1398, maxDocs=44218)
0.043569047 = queryNorm
0.41750383 = fieldWeight in 602, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
4.4533744 = idf(docFreq=1398, maxDocs=44218)
0.046875 = fieldNorm(doc=602)
0.33333334 = coord(1/3)
0.33333334 = coord(1/3)
- Abstract
- In this article we demonstrate the use of an integrative approach to visualizing and tracking the development of scientific paradigms. This approach is designed to reveal the long-term process of competing scientific paradigms. We assume that a cluster of highly cited and cocited scientific publications in a cocitation network represents the core of a predominant scientific paradigm. The growth of a paradigm is depicted and animated through the rise of citation rates and the movement of its core cluster towards the center of the cocitation network. We study two cases of competing scientific paradigms in the real world: (1) the causes of mass extinctions, and (2) the connections between mad cow disease and a new variant of a brain disease in humans-vCJD. Various theoretical and practical issues concerning this approach are discussed.
-
Leydesdorff, L.: Clusters and maps of science journals based on bi-connected graphs in Journal Citation Reports (2004)
0.01
0.009000885 = product of:
0.027002655 = sum of:
0.027002655 = product of:
0.081007965 = sum of:
0.081007965 = weight(_text_:network in 4427) [ClassicSimilarity], result of:
0.081007965 = score(doc=4427,freq=4.0), product of:
0.19402927 = queryWeight, product of:
4.4533744 = idf(docFreq=1398, maxDocs=44218)
0.043569047 = queryNorm
0.41750383 = fieldWeight in 4427, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
4.4533744 = idf(docFreq=1398, maxDocs=44218)
0.046875 = fieldNorm(doc=4427)
0.33333334 = coord(1/3)
0.33333334 = coord(1/3)
- Abstract
- The aggregated journal-journal citation matrix derived from Journal Citation Reports 2001 can be decomposed into a unique subject classification using the graph-analytical algorithm of bi-connected components. This technique was recently incorporated in software tools for social network analysis. The matrix can be assessed in terms of its decomposability using articulation points which indicate overlap between the components. The articulation points of this set did not exhibit a next-order network of "general science" journals. However, the clusters differ in size and in terms of the internal density of their relations. A full classification of the journals is provided in the Appendix. The clusters can also be extracted and mapped for the visualization.
-
Persson, O.; Beckmann, M.: Locating the network of interacting authors in scientific specialities (1995)
0.01
0.008486116 = product of:
0.025458349 = sum of:
0.025458349 = product of:
0.076375045 = sum of:
0.076375045 = weight(_text_:network in 3300) [ClassicSimilarity], result of:
0.076375045 = score(doc=3300,freq=2.0), product of:
0.19402927 = queryWeight, product of:
4.4533744 = idf(docFreq=1398, maxDocs=44218)
0.043569047 = queryNorm
0.3936264 = fieldWeight in 3300, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
4.4533744 = idf(docFreq=1398, maxDocs=44218)
0.0625 = fieldNorm(doc=3300)
0.33333334 = coord(1/3)
0.33333334 = coord(1/3)
-
Lindholm-Romantschuk, Y.: Scholarly book reviewing in the social sciences and humanities : the flow of ides within and among disciplines (1998)
0.01
0.006618432 = product of:
0.019855294 = sum of:
0.019855294 = product of:
0.059565883 = sum of:
0.059565883 = weight(_text_:29 in 4063) [ClassicSimilarity], result of:
0.059565883 = score(doc=4063,freq=2.0), product of:
0.15326229 = queryWeight, product of:
3.5176873 = idf(docFreq=3565, maxDocs=44218)
0.043569047 = queryNorm
0.38865322 = fieldWeight in 4063, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5176873 = idf(docFreq=3565, maxDocs=44218)
0.078125 = fieldNorm(doc=4063)
0.33333334 = coord(1/3)
0.33333334 = coord(1/3)
- Date
- 29. 3.1996 18:19:32
-
Garfield, E.; Stock, W.G.: Citation Consciousness : Interview with Eugene Garfiels, chairman emeritus of ISI; Philadelphia (2002)
0.01
0.006558894 = product of:
0.019676682 = sum of:
0.019676682 = product of:
0.059030045 = sum of:
0.059030045 = weight(_text_:22 in 613) [ClassicSimilarity], result of:
0.059030045 = score(doc=613,freq=2.0), product of:
0.15257138 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.043569047 = queryNorm
0.38690117 = fieldWeight in 613, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.078125 = fieldNorm(doc=613)
0.33333334 = coord(1/3)
0.33333334 = coord(1/3)
- Source
- Password. 2002, H.6, S.22-25
-
Larivière, V.; Gingras, Y.; Archambault, E.: ¬The decline in the concentration of citations, 1900-2007 (2009)
0.01
0.0055654063 = product of:
0.016696218 = sum of:
0.016696218 = product of:
0.050088655 = sum of:
0.050088655 = weight(_text_:22 in 2763) [ClassicSimilarity], result of:
0.050088655 = score(doc=2763,freq=4.0), product of:
0.15257138 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.043569047 = queryNorm
0.32829654 = fieldWeight in 2763, 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=2763)
0.33333334 = coord(1/3)
0.33333334 = coord(1/3)
- Date
- 22. 3.2009 19:22:35
-
Leydesdorff, L.; Moya-Anegón, F.de; Guerrero-Bote, V.P.: Journal maps on the basis of Scopus data : a comparison with the Journal Citation Reports of the ISI (2010)
0.01
0.0053038225 = product of:
0.015911467 = sum of:
0.015911467 = product of:
0.047734402 = sum of:
0.047734402 = weight(_text_:network in 3335) [ClassicSimilarity], result of:
0.047734402 = score(doc=3335,freq=2.0), product of:
0.19402927 = queryWeight, product of:
4.4533744 = idf(docFreq=1398, maxDocs=44218)
0.043569047 = queryNorm
0.2460165 = fieldWeight in 3335, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
4.4533744 = idf(docFreq=1398, maxDocs=44218)
0.0390625 = fieldNorm(doc=3335)
0.33333334 = coord(1/3)
0.33333334 = coord(1/3)
- Abstract
- Using the Scopus dataset (1996-2007) a grand matrix of aggregated journal-journal citations was constructed. This matrix can be compared in terms of the network structures with the matrix contained in the Journal Citation Reports (JCR) of the Institute of Scientific Information (ISI). Because the Scopus database contains a larger number of journals and covers the humanities, one would expect richer maps. However, the matrix is in this case sparser than in the case of the ISI data. This is because of (a) the larger number of journals covered by Scopus and (b) the historical record of citations older than 10 years contained in the ISI database. When the data is highly structured, as in the case of large journals, the maps are comparable, although one may have to vary a threshold (because of the differences in densities). In the case of interdisciplinary journals and journals in the social sciences and humanities, the new database does not add a lot to what is possible with the ISI databases.
-
Pao, M.L.: Term and citation retrieval : a field study (1993)
0.01
0.0052947453 = product of:
0.015884236 = sum of:
0.015884236 = product of:
0.047652703 = sum of:
0.047652703 = weight(_text_:29 in 3741) [ClassicSimilarity], result of:
0.047652703 = score(doc=3741,freq=2.0), product of:
0.15326229 = queryWeight, product of:
3.5176873 = idf(docFreq=3565, maxDocs=44218)
0.043569047 = queryNorm
0.31092256 = fieldWeight in 3741, 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=3741)
0.33333334 = coord(1/3)
0.33333334 = coord(1/3)
- Source
- Information processing and management. 29(1993) no.1, S.95-112
-
Rousseau, R.: Timelines in citation research (2006)
0.01
0.0052947453 = product of:
0.015884236 = sum of:
0.015884236 = product of:
0.047652703 = sum of:
0.047652703 = weight(_text_:29 in 1746) [ClassicSimilarity], result of:
0.047652703 = score(doc=1746,freq=2.0), product of:
0.15326229 = queryWeight, product of:
3.5176873 = idf(docFreq=3565, maxDocs=44218)
0.043569047 = queryNorm
0.31092256 = fieldWeight in 1746, 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=1746)
0.33333334 = coord(1/3)
0.33333334 = coord(1/3)
- Date
- 18. 8.2006 14:29:40
