-
Zhu, Q.; Kong, X.; Hong, S.; Li, J.; He, Z.: Global ontology research progress : a bibliometric analysis (2015)
0.01
0.01089771 = product of:
0.02179542 = sum of:
0.02179542 = product of:
0.04359084 = sum of:
0.04359084 = weight(_text_:22 in 2590) [ClassicSimilarity], result of:
0.04359084 = score(doc=2590,freq=4.0), product of:
0.15933464 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.045500398 = 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)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Date
- 20. 1.2015 18:30:22
17. 9.2018 18:22:23
-
Lin, X.; Li, J.; Zhou, X.: Theme creation for digital collections (2008)
0.01
0.010788183 = product of:
0.021576365 = sum of:
0.021576365 = product of:
0.04315273 = sum of:
0.04315273 = weight(_text_:22 in 2635) [ClassicSimilarity], result of:
0.04315273 = score(doc=2635,freq=2.0), product of:
0.15933464 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.045500398 = 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)
0.5 = coord(1/2)
0.5 = coord(1/2)
- 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
-
Li, J.; Zhang, P.; Cao, J.: External concept support for group support systems through Web mining (2009)
0.01
0.009748395 = product of:
0.01949679 = sum of:
0.01949679 = product of:
0.03899358 = sum of:
0.03899358 = weight(_text_:p in 2806) [ClassicSimilarity], result of:
0.03899358 = score(doc=2806,freq=2.0), product of:
0.16359726 = queryWeight, product of:
3.5955126 = idf(docFreq=3298, maxDocs=44218)
0.045500398 = queryNorm
0.23835106 = fieldWeight in 2806, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5955126 = idf(docFreq=3298, maxDocs=44218)
0.046875 = fieldNorm(doc=2806)
0.5 = coord(1/2)
0.5 = coord(1/2)
-
Li, J.; Zhang, P.; Song, D.; Wu, Y.: Understanding an enriched multidimensional user relevance model by analyzing query logs (2017)
0.01
0.009748395 = product of:
0.01949679 = sum of:
0.01949679 = product of:
0.03899358 = sum of:
0.03899358 = weight(_text_:p in 3961) [ClassicSimilarity], result of:
0.03899358 = score(doc=3961,freq=2.0), product of:
0.16359726 = queryWeight, product of:
3.5955126 = idf(docFreq=3298, maxDocs=44218)
0.045500398 = queryNorm
0.23835106 = fieldWeight in 3961, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5955126 = idf(docFreq=3298, maxDocs=44218)
0.046875 = fieldNorm(doc=3961)
0.5 = coord(1/2)
0.5 = coord(1/2)
-
Li, J.; Shi, D.: Sleeping beauties in genius work : when were they awakened? (2016)
0.01
0.009247013 = product of:
0.018494027 = sum of:
0.018494027 = product of:
0.036988053 = sum of:
0.036988053 = weight(_text_:22 in 2647) [ClassicSimilarity], result of:
0.036988053 = score(doc=2647,freq=2.0), product of:
0.15933464 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.045500398 = 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)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Date
- 22. 1.2016 14:13:32
-
Li, J.; Willett, P.: ArticleRank : a PageRank-based alternative to numbers of citations for analysing citation networks (2009)
0.01
0.008123662 = product of:
0.016247325 = sum of:
0.016247325 = product of:
0.03249465 = sum of:
0.03249465 = weight(_text_:p in 751) [ClassicSimilarity], result of:
0.03249465 = score(doc=751,freq=2.0), product of:
0.16359726 = queryWeight, product of:
3.5955126 = idf(docFreq=3298, maxDocs=44218)
0.045500398 = queryNorm
0.19862589 = fieldWeight in 751, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5955126 = idf(docFreq=3298, maxDocs=44218)
0.0390625 = fieldNorm(doc=751)
0.5 = coord(1/2)
0.5 = coord(1/2)
-
Min, C.; Ding, Y.; Li, J.; Bu, Y.; Pei, L.; Sun, J.: Innovation or imitation : the diffusion of citations (2018)
0.01
0.008123662 = product of:
0.016247325 = sum of:
0.016247325 = product of:
0.03249465 = sum of:
0.03249465 = weight(_text_:p in 4445) [ClassicSimilarity], result of:
0.03249465 = score(doc=4445,freq=2.0), product of:
0.16359726 = queryWeight, product of:
3.5955126 = idf(docFreq=3298, maxDocs=44218)
0.045500398 = queryNorm
0.19862589 = fieldWeight in 4445, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5955126 = idf(docFreq=3298, maxDocs=44218)
0.0390625 = fieldNorm(doc=4445)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Abstract
- Citations in scientific literature are important both for tracking the historical development of scientific ideas and for forecasting research trends. However, the diffusion mechanisms underlying the citation process remain poorly understood, despite the frequent and longstanding use of citation counts for assessment purposes within the scientific community. Here, we extend the study of citation dynamics to a more general diffusion process to understand how citation growth associates with different diffusion patterns. Using a classic diffusion model, we quantify and illustrate specific diffusion mechanisms which have been proven to exert a significant impact on the growth and decay of citation counts. Experiments reveal a positive relation between the "low p and low q" pattern and high scientific impact. A sharp citation peak produced by rapid change of citation counts, however, has a negative effect on future impact. In addition, we have suggested a simple indicator, saturation level, to roughly estimate an individual article's current stage in the life cycle and its potential to attract future attention. The proposed approach can also be extended to higher levels of aggregation (e.g., individual scientists, journals, institutions), providing further insights into the practice of scientific evaluation.
-
Zheng, R.; Li, J.; Chen, H.; Huang, Z.: ¬A framework for authorship identification of online messages : writing-style features and classification techniques (2006)
0.01
0.007705845 = product of:
0.01541169 = sum of:
0.01541169 = product of:
0.03082338 = sum of:
0.03082338 = weight(_text_:22 in 5276) [ClassicSimilarity], result of:
0.03082338 = score(doc=5276,freq=2.0), product of:
0.15933464 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.045500398 = 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)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Date
- 22. 7.2006 16:14:37
