Zhao, D.; Strotmann, A.; Cappello, A.: In-text function of author self-citations : implications for research evaluation practice (2018)
0.00
5.0708273E-4 = product of:
0.007606241 = sum of:
0.005915991 = weight(_text_:in in 4347) [ClassicSimilarity], result of:
0.005915991 = score(doc=4347,freq=10.0), product of:
0.029340398 = queryWeight, product of:
1.3602545 = idf(docFreq=30841, maxDocs=44218)
0.021569785 = queryNorm
0.20163295 = fieldWeight in 4347, product of:
3.1622777 = tf(freq=10.0), with freq of:
10.0 = termFreq=10.0
1.3602545 = idf(docFreq=30841, maxDocs=44218)
0.046875 = fieldNorm(doc=4347)
0.0016902501 = weight(_text_:s in 4347) [ClassicSimilarity], result of:
0.0016902501 = score(doc=4347,freq=2.0), product of:
0.023451481 = queryWeight, product of:
1.0872376 = idf(docFreq=40523, maxDocs=44218)
0.021569785 = queryNorm
0.072074346 = fieldWeight in 4347, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
1.0872376 = idf(docFreq=40523, maxDocs=44218)
0.046875 = fieldNorm(doc=4347)
0.06666667 = coord(2/30)
- Abstract
- Author self-citations were examined as to their function, frequency, and location in the full text of research articles and compared with external citations. Function analysis was based on manual coding of a small dataset in the field of library and information studies, whereas the analyses by frequency and location used both this small dataset and a large dataset from PubMed Central. Strong evidence was found that self-citations appear more likely to serve as substantial citations in a text than do external citations. This finding challenges previous studies that assumed that self-citations should be discounted or even removed and suggests that self-citations should be given more weight in citation analysis, if anything.
- Source
- Journal of the Association for Information Science and Technology. 69(2018) no.7, S.949-952