-
Chen, C.; Cribbin, T.; Macredie, R.; Morar, S.: Visualizing and tracking the growth of competing paradigms : two case studies (2002)
0.03
0.030536594 = product of:
0.061073188 = sum of:
0.061073188 = product of:
0.122146375 = sum of:
0.122146375 = weight(_text_:core in 602) [ClassicSimilarity], result of:
0.122146375 = score(doc=602,freq=4.0), product of:
0.25797358 = queryWeight, product of:
5.0504966 = idf(docFreq=769, maxDocs=44218)
0.051078856 = queryNorm
0.47348404 = fieldWeight in 602, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
5.0504966 = idf(docFreq=769, maxDocs=44218)
0.046875 = fieldNorm(doc=602)
0.5 = coord(1/2)
0.5 = coord(1/2)
- 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.
-
Chen, C.: Top Ten Problems in Visual Interfaces to Digital Libraries (2002)
0.03
0.029361112 = product of:
0.058722224 = sum of:
0.058722224 = product of:
0.11744445 = sum of:
0.11744445 = weight(_text_:22 in 4840) [ClassicSimilarity], result of:
0.11744445 = score(doc=4840,freq=4.0), product of:
0.17886946 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.051078856 = queryNorm
0.6565931 = fieldWeight in 4840, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.09375 = fieldNorm(doc=4840)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Date
- 22. 2.2003 17:25:39
22. 2.2003 18:13:11
-
Börner, K.; Chen, C.: Visual Interfaces to Digital Libraries : Motivation, Utilization, and Socio-technical Challenges (2002)
0.03
0.029361112 = product of:
0.058722224 = sum of:
0.058722224 = product of:
0.11744445 = sum of:
0.11744445 = weight(_text_:22 in 1359) [ClassicSimilarity], result of:
0.11744445 = score(doc=1359,freq=4.0), product of:
0.17886946 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.051078856 = queryNorm
0.6565931 = fieldWeight in 1359, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.09375 = fieldNorm(doc=1359)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Date
- 22. 2.2003 17:25:39
22. 2.2003 18:20:07
-
Chen, C.; Ibekwe-SanJuan, F.; Pinho, R.; Zhang, J.: ¬The impact of the sloan digital sky survey on astronomical research : the role of culture, identity, and international collaboration (2008)
0.02
0.021592634 = product of:
0.043185268 = sum of:
0.043185268 = product of:
0.086370535 = sum of:
0.086370535 = weight(_text_:core in 2275) [ClassicSimilarity], result of:
0.086370535 = score(doc=2275,freq=2.0), product of:
0.25797358 = queryWeight, product of:
5.0504966 = idf(docFreq=769, maxDocs=44218)
0.051078856 = queryNorm
0.3348038 = fieldWeight in 2275, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
5.0504966 = idf(docFreq=769, maxDocs=44218)
0.046875 = fieldNorm(doc=2275)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Content
- We investigate the influence of culture and identity (geographic location) on the constitution of a specific research field. Using as case study the Sloan Digital Sky Survey (SDSS) project in the Astronomy field, we analyzed texts from bibliographic records of publications along three cultural and geographic axes: US only publications, non-US publications and international collaboration. Using three text mining systems (CiteSpace, TermWatch and PEx), we were able to automatically identify the topics specific to each cultural and geographic region as well as isolate the core research topics common to all geographic zones. The results tended to show that US-only and non-US research in this field shared more commonalities with international collaboration than with one another, thus indicating that the former two (US-only and non-US) research focused on rather distinct topics.
-
Chen, C.: CiteSpace II : detecting and visualizing emerging trends and transient patterns in scientific literature (2006)
0.01
0.0086506 = product of:
0.0173012 = sum of:
0.0173012 = product of:
0.0346024 = sum of:
0.0346024 = weight(_text_:22 in 5272) [ClassicSimilarity], result of:
0.0346024 = score(doc=5272,freq=2.0), product of:
0.17886946 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.051078856 = 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)
0.5 = coord(1/2)
- Date
- 22. 7.2006 16:11:05
-
Liu, S.; Chen, C.: ¬The differences between latent topics in abstracts and citation contexts of citing papers (2013)
0.01
0.0086506 = product of:
0.0173012 = sum of:
0.0173012 = product of:
0.0346024 = sum of:
0.0346024 = weight(_text_:22 in 671) [ClassicSimilarity], result of:
0.0346024 = score(doc=671,freq=2.0), product of:
0.17886946 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.051078856 = 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)
0.5 = coord(1/2)
- Date
- 22. 3.2013 19:50:00
