-
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
0.0076818094 = product of:
0.04096965 = sum of:
0.016984029 = weight(_text_:23 in 2275) [ClassicSimilarity], result of:
0.016984029 = score(doc=2275,freq=2.0), product of:
0.07148406 = queryWeight, product of:
3.5840597 = idf(docFreq=3336, maxDocs=44218)
0.019944998 = queryNorm
0.23759183 = fieldWeight in 2275, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5840597 = idf(docFreq=3336, maxDocs=44218)
0.046875 = fieldNorm(doc=2275)
0.016984029 = weight(_text_:23 in 2275) [ClassicSimilarity], result of:
0.016984029 = score(doc=2275,freq=2.0), product of:
0.07148406 = queryWeight, product of:
3.5840597 = idf(docFreq=3336, maxDocs=44218)
0.019944998 = queryNorm
0.23759183 = fieldWeight in 2275, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5840597 = idf(docFreq=3336, maxDocs=44218)
0.046875 = fieldNorm(doc=2275)
0.0070015946 = product of:
0.021004783 = sum of:
0.021004783 = weight(_text_:f in 2275) [ClassicSimilarity], result of:
0.021004783 = score(doc=2275,freq=2.0), product of:
0.07949649 = queryWeight, product of:
3.985786 = idf(docFreq=2232, maxDocs=44218)
0.019944998 = queryNorm
0.26422277 = fieldWeight in 2275, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.985786 = idf(docFreq=2232, maxDocs=44218)
0.046875 = fieldNorm(doc=2275)
0.33333334 = coord(1/3)
0.1875 = coord(3/16)
- Date
- 27.12.2008 11:20:23
-
Chen, C.: Top Ten Problems in Visual Interfaces to Digital Libraries (2002)
0.00
9.5539744E-4 = product of:
0.015286359 = sum of:
0.015286359 = product of:
0.045859076 = sum of:
0.045859076 = weight(_text_:22 in 4840) [ClassicSimilarity], result of:
0.045859076 = score(doc=4840,freq=4.0), product of:
0.069843985 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.019944998 = 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)
0.33333334 = coord(1/3)
0.0625 = coord(1/16)
- 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)
0.00
9.5539744E-4 = product of:
0.015286359 = sum of:
0.015286359 = product of:
0.045859076 = sum of:
0.045859076 = weight(_text_:22 in 1359) [ClassicSimilarity], result of:
0.045859076 = score(doc=1359,freq=4.0), product of:
0.069843985 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.019944998 = 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)
0.33333334 = coord(1/3)
0.0625 = coord(1/16)
- Date
- 22. 2.2003 17:25:39
22. 2.2003 18:20:07
-
Chen, C.; Ibekwe-SanJuan, F.; Hou, J.: ¬The structure and dynamics of cocitation clusters : a multiple-perspective cocitation analysis (2010)
0.00
4.3759967E-4 = product of:
0.0070015946 = sum of:
0.0070015946 = product of:
0.021004783 = sum of:
0.021004783 = weight(_text_:f in 3591) [ClassicSimilarity], result of:
0.021004783 = score(doc=3591,freq=2.0), product of:
0.07949649 = queryWeight, product of:
3.985786 = idf(docFreq=2232, maxDocs=44218)
0.019944998 = queryNorm
0.26422277 = fieldWeight in 3591, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.985786 = idf(docFreq=2232, maxDocs=44218)
0.046875 = fieldNorm(doc=3591)
0.33333334 = coord(1/3)
0.0625 = coord(1/16)
-
Chen, C.: Individual differences in a spatial-semantic virtual environment (2000)
0.00
3.646664E-4 = product of:
0.0058346624 = sum of:
0.0058346624 = product of:
0.017503986 = sum of:
0.017503986 = weight(_text_:f in 4603) [ClassicSimilarity], result of:
0.017503986 = score(doc=4603,freq=2.0), product of:
0.07949649 = queryWeight, product of:
3.985786 = idf(docFreq=2232, maxDocs=44218)
0.019944998 = queryNorm
0.22018565 = fieldWeight in 4603, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.985786 = idf(docFreq=2232, maxDocs=44218)
0.0390625 = fieldNorm(doc=4603)
0.33333334 = coord(1/3)
0.0625 = coord(1/16)
- Abstract
- This article presents 2 studies concerning the role of individual differences in searching through a spatial-semantic virtual environment. In the first study, 10 subjects searched for 2 topics through a spatial user interface of a semantic space. A strong positive correlation was found between associative memory (MA-1) and search performance (r=0,855, p=0,003) but no significant correlation was found between visual memory (MV-1) and search performance. In the secon study, 12 subjects participated in a within-subject experimental design. The same spatial user interface and a simple textual user interface were used. The effects of spatial ability (VZ-2), associative memory (MA-1), and on-line experience were tested on a set of interrelated search performance scores. A statistically significant main effect of on-line experience was found, F(6,4)=6,213, p=0,049, two-tailed. In particular, on-line experience has a significant effect on the recall scores with the textual interface. Individuals experienced in on-line esearch are more likely to have a higher recall score with the textual interface than less experienced individuals. No significant main effects were found for spatial ability and associative memory. Subjects' comments suggest a potentially complex interplay between individuals' mental models and the high-dimensional semantic model. Qualitative and process-oriented studies are, therefore, called for to reveal the complex interaction between individuals' cognitive abilities, doamin knowledge, and direct manipulation skills. A recommendation is made that spatial-semantic models should be adaptable to suit individuals and tasks at various levels
-
Chen, C.: CiteSpace II : detecting and visualizing emerging trends and transient patterns in scientific literature (2006)
0.00
2.8148666E-4 = product of:
0.0045037866 = sum of:
0.0045037866 = product of:
0.01351136 = sum of:
0.01351136 = weight(_text_:22 in 5272) [ClassicSimilarity], result of:
0.01351136 = score(doc=5272,freq=2.0), product of:
0.069843985 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.019944998 = 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)
0.33333334 = coord(1/3)
0.0625 = coord(1/16)
- 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)
0.00
2.8148666E-4 = product of:
0.0045037866 = sum of:
0.0045037866 = product of:
0.01351136 = sum of:
0.01351136 = weight(_text_:22 in 671) [ClassicSimilarity], result of:
0.01351136 = score(doc=671,freq=2.0), product of:
0.069843985 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.019944998 = 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)
0.33333334 = coord(1/3)
0.0625 = coord(1/16)
- Date
- 22. 3.2013 19:50:00
