-
Järvelin, K.; Persson, O.: ¬The DCI-index : discounted cumulated impact-based research evaluation (2008)
0.02
0.022710158 = product of:
0.06813047 = sum of:
0.007007226 = weight(_text_:e in 2332) [ClassicSimilarity], result of:
0.007007226 = score(doc=2332,freq=2.0), product of:
0.055154704 = queryWeight, product of:
1.43737 = idf(docFreq=28552, maxDocs=44218)
0.03837196 = queryNorm
0.12704675 = fieldWeight in 2332, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
1.43737 = idf(docFreq=28552, maxDocs=44218)
0.0625 = fieldNorm(doc=2332)
0.06112325 = weight(_text_:k in 2332) [ClassicSimilarity], result of:
0.06112325 = score(doc=2332,freq=4.0), product of:
0.13697939 = queryWeight, product of:
3.569778 = idf(docFreq=3384, maxDocs=44218)
0.03837196 = queryNorm
0.44622225 = fieldWeight in 2332, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
3.569778 = idf(docFreq=3384, maxDocs=44218)
0.0625 = fieldNorm(doc=2332)
0.33333334 = coord(2/6)
- Abstract
- The article by K. Järvelin & O. Persson published in JASIST 59(9), The DCI-Index: Discounted Cumulated Impact-Based Research Evaluation, (pp. 1433-1440) contains an unfortunate error in one of its formulas, Equation 3. The present paper gives the correction and an example of impact analysis based on the corrected formula.
- Language
- e
-
Järvelin, K.; Persson, O.: ¬The DCI index : discounted cumulated impact-based research evaluation (2008)
0.01
0.01419385 = product of:
0.042581547 = sum of:
0.004379516 = weight(_text_:e in 2694) [ClassicSimilarity], result of:
0.004379516 = score(doc=2694,freq=2.0), product of:
0.055154704 = queryWeight, product of:
1.43737 = idf(docFreq=28552, maxDocs=44218)
0.03837196 = queryNorm
0.07940422 = fieldWeight in 2694, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
1.43737 = idf(docFreq=28552, maxDocs=44218)
0.0390625 = fieldNorm(doc=2694)
0.038202032 = weight(_text_:k in 2694) [ClassicSimilarity], result of:
0.038202032 = score(doc=2694,freq=4.0), product of:
0.13697939 = queryWeight, product of:
3.569778 = idf(docFreq=3384, maxDocs=44218)
0.03837196 = queryNorm
0.2788889 = fieldWeight in 2694, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
3.569778 = idf(docFreq=3384, maxDocs=44218)
0.0390625 = fieldNorm(doc=2694)
0.33333334 = coord(2/6)
- Content
- Erratum in: Järvelin, K., O. Persson: The DCI-index: discounted cumulated impact-based research evaluation. Erratum re. In: Journal of the American Society for Information Science and Technology. 59(2008) no.14, S.2350-2352.
- Language
- e
-
Persson, O.; Melin, G.: Equalization, growth and integration of science (1996)
0.00
0.0014598387 = product of:
0.008759032 = sum of:
0.008759032 = weight(_text_:e in 6698) [ClassicSimilarity], result of:
0.008759032 = score(doc=6698,freq=2.0), product of:
0.055154704 = queryWeight, product of:
1.43737 = idf(docFreq=28552, maxDocs=44218)
0.03837196 = queryNorm
0.15880844 = fieldWeight in 6698, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
1.43737 = idf(docFreq=28552, maxDocs=44218)
0.078125 = fieldNorm(doc=6698)
0.16666667 = coord(1/6)
- Language
- e
-
Persson, O.; Beckmann, M.: Locating the network of interacting authors in scientific specialities (1995)
0.00
0.001167871 = product of:
0.007007226 = sum of:
0.007007226 = weight(_text_:e in 3300) [ClassicSimilarity], result of:
0.007007226 = score(doc=3300,freq=2.0), product of:
0.055154704 = queryWeight, product of:
1.43737 = idf(docFreq=28552, maxDocs=44218)
0.03837196 = queryNorm
0.12704675 = fieldWeight in 3300, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
1.43737 = idf(docFreq=28552, maxDocs=44218)
0.0625 = fieldNorm(doc=3300)
0.16666667 = coord(1/6)
- Language
- e
-
Melin, G.; Persson, O.: Hotel cosmopolitan : a bibliometric study of collaboration at some European universities (1998)
0.00
8.7590324E-4 = product of:
0.0052554193 = sum of:
0.0052554193 = weight(_text_:e in 329) [ClassicSimilarity], result of:
0.0052554193 = score(doc=329,freq=2.0), product of:
0.055154704 = queryWeight, product of:
1.43737 = idf(docFreq=28552, maxDocs=44218)
0.03837196 = queryNorm
0.09528506 = fieldWeight in 329, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
1.43737 = idf(docFreq=28552, maxDocs=44218)
0.046875 = fieldNorm(doc=329)
0.16666667 = coord(1/6)
- Language
- e