-
Chen, C.: Top Ten Problems in Visual Interfaces to Digital Libraries (2002)
0.07
0.0737695 = product of:
0.147539 = sum of:
0.09736532 = weight(_text_:c in 4840) [ClassicSimilarity], result of:
0.09736532 = score(doc=4840,freq=4.0), product of:
0.1505424 = queryWeight, product of:
3.4494052 = idf(docFreq=3817, maxDocs=44218)
0.043643 = queryNorm
0.64676344 = fieldWeight in 4840, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
3.4494052 = idf(docFreq=3817, maxDocs=44218)
0.09375 = fieldNorm(doc=4840)
0.05017368 = product of:
0.10034736 = sum of:
0.10034736 = weight(_text_:22 in 4840) [ClassicSimilarity], result of:
0.10034736 = score(doc=4840,freq=4.0), product of:
0.15283036 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.043643 = 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(2/4)
- Date
- 22. 2.2003 17:25:39
22. 2.2003 18:13:11
- Source
- Visual Interfaces to Digital Libraries. Eds.: Börner, K. u. C. Chen
-
Börner, K.; Chen, C.: Visual Interfaces to Digital Libraries : Motivation, Utilization, and Socio-technical Challenges (2002)
0.07
0.0737695 = product of:
0.147539 = sum of:
0.09736532 = weight(_text_:c in 1359) [ClassicSimilarity], result of:
0.09736532 = score(doc=1359,freq=4.0), product of:
0.1505424 = queryWeight, product of:
3.4494052 = idf(docFreq=3817, maxDocs=44218)
0.043643 = queryNorm
0.64676344 = fieldWeight in 1359, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
3.4494052 = idf(docFreq=3817, maxDocs=44218)
0.09375 = fieldNorm(doc=1359)
0.05017368 = product of:
0.10034736 = sum of:
0.10034736 = weight(_text_:22 in 1359) [ClassicSimilarity], result of:
0.10034736 = score(doc=1359,freq=4.0), product of:
0.15283036 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.043643 = 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(2/4)
- Date
- 22. 2.2003 17:25:39
22. 2.2003 18:20:07
- Source
- Visual Interfaces to Digital Libraries. Eds.: Börner, K. u. C. Chen
-
Chen, C.: CiteSpace II : detecting and visualizing emerging trends and transient patterns in scientific literature (2006)
0.03
0.027675724 = product of:
0.055351447 = sum of:
0.040568884 = weight(_text_:c in 5272) [ClassicSimilarity], result of:
0.040568884 = score(doc=5272,freq=4.0), product of:
0.1505424 = queryWeight, product of:
3.4494052 = idf(docFreq=3817, maxDocs=44218)
0.043643 = 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)
0.014782562 = product of:
0.029565124 = sum of:
0.029565124 = weight(_text_:22 in 5272) [ClassicSimilarity], result of:
0.029565124 = score(doc=5272,freq=2.0), product of:
0.15283036 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.043643 = 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(2/4)
- 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
-
Chen, C.: Visualizing scientific paradigms : an introduction (2003)
0.01
0.010040285 = product of:
0.04016114 = sum of:
0.04016114 = weight(_text_:c in 1455) [ClassicSimilarity], result of:
0.04016114 = score(doc=1455,freq=2.0), product of:
0.1505424 = queryWeight, product of:
3.4494052 = idf(docFreq=3817, maxDocs=44218)
0.043643 = queryNorm
0.2667763 = fieldWeight in 1455, 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=1455)
0.25 = coord(1/4)
-
Chen, C.; Kuljis, J.: ¬The rising landscape : a visual exploration of superstring revolutions in physics (2003)
0.01
0.010040285 = product of:
0.04016114 = sum of:
0.04016114 = weight(_text_:c in 1469) [ClassicSimilarity], result of:
0.04016114 = score(doc=1469,freq=2.0), product of:
0.1505424 = queryWeight, product of:
3.4494052 = idf(docFreq=3817, maxDocs=44218)
0.043643 = queryNorm
0.2667763 = fieldWeight in 1469, 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=1469)
0.25 = coord(1/4)
-
Chen, C.; Paul, R.J.; O'Keefe, B.: Fitting the Jigsaw of citation : information visualization in domain analysis (2001)
0.01
0.00860596 = product of:
0.03442384 = sum of:
0.03442384 = weight(_text_:c in 5766) [ClassicSimilarity], result of:
0.03442384 = score(doc=5766,freq=2.0), product of:
0.1505424 = queryWeight, product of:
3.4494052 = idf(docFreq=3817, maxDocs=44218)
0.043643 = queryNorm
0.22866541 = fieldWeight in 5766, 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=5766)
0.25 = coord(1/4)
-
Chen, C.; Cribbin, T.; Macredie, R.; Morar, S.: Visualizing and tracking the growth of competing paradigms : two case studies (2002)
0.01
0.00860596 = product of:
0.03442384 = sum of:
0.03442384 = weight(_text_:c in 602) [ClassicSimilarity], result of:
0.03442384 = score(doc=602,freq=2.0), product of:
0.1505424 = queryWeight, product of:
3.4494052 = idf(docFreq=3817, maxDocs=44218)
0.043643 = queryNorm
0.22866541 = fieldWeight in 602, 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=602)
0.25 = coord(1/4)
-
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)
0.01
0.00860596 = product of:
0.03442384 = sum of:
0.03442384 = weight(_text_:c in 2275) [ClassicSimilarity], result of:
0.03442384 = score(doc=2275,freq=2.0), product of:
0.1505424 = queryWeight, product of:
3.4494052 = idf(docFreq=3817, maxDocs=44218)
0.043643 = queryNorm
0.22866541 = fieldWeight in 2275, 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=2275)
0.25 = coord(1/4)
-
Chen, C.; Czerwinski, M.; Macredie, R.: Individual differences in virtual environments : introduction and overview (2000)
0.01
0.0071716327 = product of:
0.02868653 = sum of:
0.02868653 = weight(_text_:c in 4600) [ClassicSimilarity], result of:
0.02868653 = score(doc=4600,freq=2.0), product of:
0.1505424 = queryWeight, product of:
3.4494052 = idf(docFreq=3817, maxDocs=44218)
0.043643 = queryNorm
0.1905545 = fieldWeight in 4600, 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=4600)
0.25 = coord(1/4)
-
Chen, C.: Individual differences in a spatial-semantic virtual environment (2000)
0.01
0.0071716327 = product of:
0.02868653 = sum of:
0.02868653 = weight(_text_:c in 4603) [ClassicSimilarity], result of:
0.02868653 = score(doc=4603,freq=2.0), product of:
0.1505424 = queryWeight, product of:
3.4494052 = idf(docFreq=3817, maxDocs=44218)
0.043643 = queryNorm
0.1905545 = fieldWeight in 4603, 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=4603)
0.25 = coord(1/4)
-
Chen, C.: Mapping scientific frontiers : the quest for knowledge visualization (2003)
0.01
0.005737306 = product of:
0.022949224 = sum of:
0.022949224 = weight(_text_:c in 2213) [ClassicSimilarity], result of:
0.022949224 = score(doc=2213,freq=2.0), product of:
0.1505424 = queryWeight, product of:
3.4494052 = idf(docFreq=3817, maxDocs=44218)
0.043643 = queryNorm
0.1524436 = fieldWeight in 2213, 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=2213)
0.25 = coord(1/4)
-
Börner, K.; Chen, C.; Boyack, K.W.: Visualizing knowledge domains (2002)
0.01
0.0050201425 = product of:
0.02008057 = sum of:
0.02008057 = weight(_text_:c in 4286) [ClassicSimilarity], result of:
0.02008057 = score(doc=4286,freq=2.0), product of:
0.1505424 = queryWeight, product of:
3.4494052 = idf(docFreq=3817, maxDocs=44218)
0.043643 = queryNorm
0.13338815 = fieldWeight in 4286, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.4494052 = idf(docFreq=3817, maxDocs=44218)
0.02734375 = fieldNorm(doc=4286)
0.25 = coord(1/4)
