He, Q.: ¬A study of the strength indexes in co-word analysis (2000)
0.00
0.003897557 = product of:
0.011692671 = sum of:
0.011692671 = weight(_text_:e in 111) [ClassicSimilarity], result of:
0.011692671 = score(doc=111,freq=6.0), product of:
0.07084811 = queryWeight, product of:
1.43737 = idf(docFreq=28552, maxDocs=44218)
0.049290102 = queryNorm
0.16503859 = fieldWeight in 111, product of:
2.4494898 = tf(freq=6.0), with freq of:
6.0 = termFreq=6.0
1.43737 = idf(docFreq=28552, maxDocs=44218)
0.046875 = fieldNorm(doc=111)
0.33333334 = coord(1/3)
- Abstract
- Co-word analysis is a technique for detecting the knowledge structure of scientific literature and mapping the dynamics in a research field. It is used to count the co-occurrences of term pairs, compute the strength between term pairs, and map the research field by inserting terms and their linkages into a graphical structure according to the strength values. In previous co-word studies, there are two indexes used to measure the strength between term pairs in order to identify the major areas in a research field - the inclusion index (I) and the equivalence index (E). This study will conduct two co-word analysis experiments using the two indexes, respectively, and compare the results from the two experiments. The results show, due to the difference in their computation, index I is more likely to identify general subject areas in a research field while index E is more likely to identify subject areas at more specific levels
- Language
- e