-
Zhao, S.X.; Zhang, P.L.; Li, J.; Tan, A.M.; Ye, F.Y.: Abstracting the core subnet of weighted networks based on link strengths (2014)
0.01
0.01102379 = product of:
0.03307137 = sum of:
0.03307137 = product of:
0.0992141 = sum of:
0.0992141 = weight(_text_:network in 1256) [ClassicSimilarity], result of:
0.0992141 = score(doc=1256,freq=6.0), product of:
0.19402927 = queryWeight, product of:
4.4533744 = idf(docFreq=1398, maxDocs=44218)
0.043569047 = queryNorm
0.51133573 = fieldWeight in 1256, product of:
2.4494898 = tf(freq=6.0), with freq of:
6.0 = termFreq=6.0
4.4533744 = idf(docFreq=1398, maxDocs=44218)
0.046875 = fieldNorm(doc=1256)
0.33333334 = coord(1/3)
0.33333334 = coord(1/3)
- Abstract
- Most measures of networks are based on the nodes, although links are also elementary units in networks and represent interesting social or physical connections. In this work we suggest an option for exploring networks, called the h-strength, with explicit focus on links and their strengths. The h-strength and its extensions can naturally simplify a complex network to a small and concise subnetwork (h-subnet) but retains the most important links with its core structure. Its applications in 2 typical information networks, the paper cocitation network of a topic (the h-index) and 5 scientific collaboration networks in the field of "water resources," suggest that h-strength and its extensions could be a useful choice for abstracting, simplifying, and visualizing a complex network. Moreover, we observe that the 2 informetric models, the Glänzel-Schubert model and the Hirsch model, roughly hold in the context of the h-strength for the collaboration networks.
-
Li, J.; Willett, P.: ArticleRank : a PageRank-based alternative to numbers of citations for analysing citation networks (2009)
0.01
0.007500738 = product of:
0.022502214 = sum of:
0.022502214 = product of:
0.06750664 = sum of:
0.06750664 = weight(_text_:network in 751) [ClassicSimilarity], result of:
0.06750664 = score(doc=751,freq=4.0), product of:
0.19402927 = queryWeight, product of:
4.4533744 = idf(docFreq=1398, maxDocs=44218)
0.043569047 = queryNorm
0.34791988 = fieldWeight in 751, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
4.4533744 = idf(docFreq=1398, maxDocs=44218)
0.0390625 = fieldNorm(doc=751)
0.33333334 = coord(1/3)
0.33333334 = coord(1/3)
- Abstract
- Purpose - The purpose of this paper is to suggest an alternative to the widely used Times Cited criterion for analysing citation networks. The approach involves taking account of the natures of the papers that cite a given paper, so as to differentiate between papers that attract the same number of citations. Design/methodology/approach - ArticleRank is an algorithm that has been derived from Google's PageRank algorithm to measure the influence of journal articles. ArticleRank is applied to two datasets - a citation network based on an early paper on webometrics, and a self-citation network based on the 19 most cited papers in the Journal of Documentation - using citation data taken from the Web of Knowledge database. Findings - ArticleRank values provide a different ranking of a set of papers from that provided by the corresponding Times Cited values, and overcomes the inability of the latter to differentiate between papers with the same numbers of citations. The difference in rankings between Times Cited and ArticleRank is greatest for the most heavily cited articles in a dataset. Originality/value - This is a novel application of the PageRank algorithm.
-
Zhu, Q.; Kong, X.; Hong, S.; Li, J.; He, Z.: Global ontology research progress : a bibliometric analysis (2015)
0.00
0.0046378383 = product of:
0.013913515 = sum of:
0.013913515 = product of:
0.041740544 = sum of:
0.041740544 = weight(_text_:22 in 2590) [ClassicSimilarity], result of:
0.041740544 = score(doc=2590,freq=4.0), product of:
0.15257138 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.043569047 = 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)
0.33333334 = coord(1/3)
0.33333334 = coord(1/3)
- Date
- 20. 1.2015 18:30:22
17. 9.2018 18:22:23
-
Li, J.; Wu, G.: Characteristics of reference transactions : challenges to librarian's roles (1998)
0.00
0.0046329014 = product of:
0.013898704 = sum of:
0.013898704 = product of:
0.041696113 = sum of:
0.041696113 = weight(_text_:29 in 3374) [ClassicSimilarity], result of:
0.041696113 = score(doc=3374,freq=2.0), product of:
0.15326229 = queryWeight, product of:
3.5176873 = idf(docFreq=3565, maxDocs=44218)
0.043569047 = queryNorm
0.27205724 = fieldWeight in 3374, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5176873 = idf(docFreq=3565, maxDocs=44218)
0.0546875 = fieldNorm(doc=3374)
0.33333334 = coord(1/3)
0.33333334 = coord(1/3)
- Date
- 16. 3.1999 9:17:29
-
Lin, X.; Li, J.; Zhou, X.: Theme creation for digital collections (2008)
0.00
0.004591226 = product of:
0.013773678 = sum of:
0.013773678 = product of:
0.04132103 = sum of:
0.04132103 = weight(_text_:22 in 2635) [ClassicSimilarity], result of:
0.04132103 = score(doc=2635,freq=2.0), product of:
0.15257138 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.043569047 = queryNorm
0.2708308 = fieldWeight in 2635, 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=2635)
0.33333334 = coord(1/3)
0.33333334 = coord(1/3)
- Source
- Metadata for semantic and social applications : proceedings of the International Conference on Dublin Core and Metadata Applications, Berlin, 22 - 26 September 2008, DC 2008: Berlin, Germany / ed. by Jane Greenberg and Wolfgang Klas
-
Zhang, C.; Zeng, D.; Li, J.; Wang, F.-Y.; Zuo, W.: Sentiment analysis of Chinese documents : from sentence to document level (2009)
0.00
0.003971059 = product of:
0.011913176 = sum of:
0.011913176 = product of:
0.035739526 = sum of:
0.035739526 = weight(_text_:29 in 3296) [ClassicSimilarity], result of:
0.035739526 = score(doc=3296,freq=2.0), product of:
0.15326229 = queryWeight, product of:
3.5176873 = idf(docFreq=3565, maxDocs=44218)
0.043569047 = queryNorm
0.23319192 = fieldWeight in 3296, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5176873 = idf(docFreq=3565, maxDocs=44218)
0.046875 = fieldNorm(doc=3296)
0.33333334 = coord(1/3)
0.33333334 = coord(1/3)
- Date
- 2. 2.2010 19:29:56
-
Shi, D.; Rousseau, R.; Yang, L.; Li, J.: ¬A journal's impact factor is influenced by changes in publication delays of citing journals (2017)
0.00
0.003971059 = product of:
0.011913176 = sum of:
0.011913176 = product of:
0.035739526 = sum of:
0.035739526 = weight(_text_:29 in 3441) [ClassicSimilarity], result of:
0.035739526 = score(doc=3441,freq=2.0), product of:
0.15326229 = queryWeight, product of:
3.5176873 = idf(docFreq=3565, maxDocs=44218)
0.043569047 = queryNorm
0.23319192 = fieldWeight in 3441, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5176873 = idf(docFreq=3565, maxDocs=44218)
0.046875 = fieldNorm(doc=3441)
0.33333334 = coord(1/3)
0.33333334 = coord(1/3)
- Date
- 16.11.2017 13:29:52
-
Xie, Z.; Ouyang, Z.; Li, J.; Dong, E.: Modelling transition phenomena of scientific coauthorship networks (2018)
0.00
0.003971059 = product of:
0.011913176 = sum of:
0.011913176 = product of:
0.035739526 = sum of:
0.035739526 = weight(_text_:29 in 4043) [ClassicSimilarity], result of:
0.035739526 = score(doc=4043,freq=2.0), product of:
0.15326229 = queryWeight, product of:
3.5176873 = idf(docFreq=3565, maxDocs=44218)
0.043569047 = queryNorm
0.23319192 = fieldWeight in 4043, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5176873 = idf(docFreq=3565, maxDocs=44218)
0.046875 = fieldNorm(doc=4043)
0.33333334 = coord(1/3)
0.33333334 = coord(1/3)
- Date
- 14. 1.2018 17:03:29
-
Li, J.; Shi, D.: Sleeping beauties in genius work : when were they awakened? (2016)
0.00
0.0039353366 = product of:
0.011806009 = sum of:
0.011806009 = product of:
0.035418026 = sum of:
0.035418026 = weight(_text_:22 in 2647) [ClassicSimilarity], result of:
0.035418026 = score(doc=2647,freq=2.0), product of:
0.15257138 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.043569047 = queryNorm
0.23214069 = fieldWeight in 2647, 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=2647)
0.33333334 = coord(1/3)
0.33333334 = coord(1/3)
- Date
- 22. 1.2016 14:13:32
-
Min, C.; Ding, Y.; Li, J.; Bu, Y.; Pei, L.; Sun, J.: Innovation or imitation : the diffusion of citations (2018)
0.00
0.003309216 = product of:
0.009927647 = sum of:
0.009927647 = product of:
0.029782942 = sum of:
0.029782942 = weight(_text_:29 in 4445) [ClassicSimilarity], result of:
0.029782942 = score(doc=4445,freq=2.0), product of:
0.15326229 = queryWeight, product of:
3.5176873 = idf(docFreq=3565, maxDocs=44218)
0.043569047 = queryNorm
0.19432661 = fieldWeight in 4445, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5176873 = idf(docFreq=3565, maxDocs=44218)
0.0390625 = fieldNorm(doc=4445)
0.33333334 = coord(1/3)
0.33333334 = coord(1/3)
- Date
- 29. 9.2018 13:24:10
-
Zheng, R.; Li, J.; Chen, H.; Huang, Z.: ¬A framework for authorship identification of online messages : writing-style features and classification techniques (2006)
0.00
0.003279447 = product of:
0.009838341 = sum of:
0.009838341 = product of:
0.029515022 = sum of:
0.029515022 = weight(_text_:22 in 5276) [ClassicSimilarity], result of:
0.029515022 = score(doc=5276,freq=2.0), product of:
0.15257138 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.043569047 = queryNorm
0.19345059 = fieldWeight in 5276, 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=5276)
0.33333334 = coord(1/3)
0.33333334 = coord(1/3)
- Date
- 22. 7.2006 16:14:37
