-
Chen, C.: Individual differences in a spatial-semantic virtual environment (2000)
0.04
0.035223138 = product of:
0.17611568 = sum of:
0.17611568 = weight(_text_:line in 4603) [ClassicSimilarity], result of:
0.17611568 = score(doc=4603,freq=8.0), product of:
0.28424788 = queryWeight, product of:
5.6078424 = idf(docFreq=440, maxDocs=44218)
0.050687566 = queryNorm
0.61958486 = fieldWeight in 4603, product of:
2.828427 = tf(freq=8.0), with freq of:
8.0 = termFreq=8.0
5.6078424 = idf(docFreq=440, maxDocs=44218)
0.0390625 = fieldNorm(doc=4603)
0.2 = coord(1/5)
- 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.: Top Ten Problems in Visual Interfaces to Digital Libraries (2002)
0.02
0.023308953 = product of:
0.11654476 = sum of:
0.11654476 = weight(_text_:22 in 4840) [ClassicSimilarity], result of:
0.11654476 = score(doc=4840,freq=4.0), product of:
0.17749922 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.050687566 = 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)
0.2 = coord(1/5)
- 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)
0.02
0.023308953 = product of:
0.11654476 = sum of:
0.11654476 = weight(_text_:22 in 1359) [ClassicSimilarity], result of:
0.11654476 = score(doc=1359,freq=4.0), product of:
0.17749922 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.050687566 = 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)
0.2 = coord(1/5)
- Date
- 22. 2.2003 17:25:39
22. 2.2003 18:20:07
-
Chen, C.: CiteSpace II : detecting and visualizing emerging trends and transient patterns in scientific literature (2006)
0.01
0.0068674656 = product of:
0.034337327 = sum of:
0.034337327 = weight(_text_:22 in 5272) [ClassicSimilarity], result of:
0.034337327 = score(doc=5272,freq=2.0), product of:
0.17749922 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.050687566 = 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)
0.2 = coord(1/5)
- 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
0.0068674656 = product of:
0.034337327 = sum of:
0.034337327 = weight(_text_:22 in 671) [ClassicSimilarity], result of:
0.034337327 = score(doc=671,freq=2.0), product of:
0.17749922 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.050687566 = 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)
0.2 = coord(1/5)
- Date
- 22. 3.2013 19:50:00