-
Leydesdorff, L.: How are new citation-based journal indicators adding to the bibliometric toolbox? (2009)
0.00
0.0010486324 = product of:
0.003145897 = sum of:
0.003145897 = weight(_text_:s in 2929) [ClassicSimilarity], result of:
0.003145897 = score(doc=2929,freq=2.0), product of:
0.043647945 = queryWeight, product of:
1.0872376 = idf(docFreq=40523, maxDocs=44218)
0.04014573 = queryNorm
0.072074346 = fieldWeight in 2929, 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=2929)
0.33333334 = coord(1/3)
- Source
- Journal of the American Society for Information Science and Technology. 60(2009) no.7, S.1327-1336
-
Leydesdorff, L.; Probst, C.: ¬The delineation of an interdisciplinary specialty in terms of a journal set : the case of communication studies (2009)
0.00
0.0010486324 = product of:
0.003145897 = sum of:
0.003145897 = weight(_text_:s in 2952) [ClassicSimilarity], result of:
0.003145897 = score(doc=2952,freq=2.0), product of:
0.043647945 = queryWeight, product of:
1.0872376 = idf(docFreq=40523, maxDocs=44218)
0.04014573 = queryNorm
0.072074346 = fieldWeight in 2952, 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=2952)
0.33333334 = coord(1/3)
- Source
- Journal of the American Society for Information Science and Technology. 60(2009) no.8, S.1709-1718
-
Leydesdorff, L.; Salah, A.A.A.: Maps on the basis of the Arts & Humanities Citation Index : the journals Leonardo and Art Journal versus "digital humanities" as a topic (2010)
0.00
0.0010486324 = product of:
0.003145897 = sum of:
0.003145897 = weight(_text_:s in 3436) [ClassicSimilarity], result of:
0.003145897 = score(doc=3436,freq=2.0), product of:
0.043647945 = queryWeight, product of:
1.0872376 = idf(docFreq=40523, maxDocs=44218)
0.04014573 = queryNorm
0.072074346 = fieldWeight in 3436, 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=3436)
0.33333334 = coord(1/3)
- Source
- Journal of the American Society for Information Science and Technology. 61(2010) no.4, S.787-801
-
Zhou, P.; Su, X.; Leydesdorff, L.: ¬A comparative study on communication structures of Chinese journals in the social sciences (2010)
0.00
0.0010486324 = product of:
0.003145897 = sum of:
0.003145897 = weight(_text_:s in 3580) [ClassicSimilarity], result of:
0.003145897 = score(doc=3580,freq=2.0), product of:
0.043647945 = queryWeight, product of:
1.0872376 = idf(docFreq=40523, maxDocs=44218)
0.04014573 = queryNorm
0.072074346 = fieldWeight in 3580, 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=3580)
0.33333334 = coord(1/3)
- Source
- Journal of the American Society for Information Science and Technology. 61(2010) no.7, S.1360-1376
-
Leydesdorff, L.; Persson, O.: Mapping the geography of science : distribution patterns and networks of relations among cities and institutes (2010)
0.00
0.0010486324 = product of:
0.003145897 = sum of:
0.003145897 = weight(_text_:s in 3704) [ClassicSimilarity], result of:
0.003145897 = score(doc=3704,freq=2.0), product of:
0.043647945 = queryWeight, product of:
1.0872376 = idf(docFreq=40523, maxDocs=44218)
0.04014573 = queryNorm
0.072074346 = fieldWeight in 3704, 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=3704)
0.33333334 = coord(1/3)
- Source
- Journal of the American Society for Information Science and Technology. 61(2010) no.8, S.1622-1634
-
Rafols, I.; Porter, A.L.; Leydesdorff, L.: Science overlay maps : a new tool for research policy and library management (2010)
0.00
0.0010486324 = product of:
0.003145897 = sum of:
0.003145897 = weight(_text_:s in 3987) [ClassicSimilarity], result of:
0.003145897 = score(doc=3987,freq=2.0), product of:
0.043647945 = queryWeight, product of:
1.0872376 = idf(docFreq=40523, maxDocs=44218)
0.04014573 = queryNorm
0.072074346 = fieldWeight in 3987, 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=3987)
0.33333334 = coord(1/3)
- Source
- Journal of the American Society for Information Science and Technology. 61(2010) no.9, S.1871-1887
-
Leydesdorff, L.: ¬The communication of meaning and the structuration of expectations : Giddens' "structuration theory" and Luhmann's "self-organization" (2010)
0.00
0.0010486324 = product of:
0.003145897 = sum of:
0.003145897 = weight(_text_:s in 4004) [ClassicSimilarity], result of:
0.003145897 = score(doc=4004,freq=2.0), product of:
0.043647945 = queryWeight, product of:
1.0872376 = idf(docFreq=40523, maxDocs=44218)
0.04014573 = queryNorm
0.072074346 = fieldWeight in 4004, 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=4004)
0.33333334 = coord(1/3)
- Source
- Journal of the American Society for Information Science and Technology. 61(2010) no.10, S.2138-2150
-
Leydesdorff, L.; Opthof, T.: Scopus's source normalized impact per paper (SNIP) versus a journal impact factor based on fractional counting of citations (2010)
0.00
0.0010486324 = product of:
0.003145897 = sum of:
0.003145897 = weight(_text_:s in 4107) [ClassicSimilarity], result of:
0.003145897 = score(doc=4107,freq=2.0), product of:
0.043647945 = queryWeight, product of:
1.0872376 = idf(docFreq=40523, maxDocs=44218)
0.04014573 = queryNorm
0.072074346 = fieldWeight in 4107, 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=4107)
0.33333334 = coord(1/3)
- Source
- Journal of the American Society for Information Science and Technology. 61(2010) no.11, S.2365-2369
-
Leydesdorff, L.; Rafols, I.: Local emergence and global diffusion of research technologies : an exploration of patterns of network formation (2011)
0.00
0.0010486324 = product of:
0.003145897 = sum of:
0.003145897 = weight(_text_:s in 4445) [ClassicSimilarity], result of:
0.003145897 = score(doc=4445,freq=2.0), product of:
0.043647945 = queryWeight, product of:
1.0872376 = idf(docFreq=40523, maxDocs=44218)
0.04014573 = queryNorm
0.072074346 = fieldWeight in 4445, 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=4445)
0.33333334 = coord(1/3)
- Source
- Journal of the American Society for Information Science and Technology. 62(2011) no.5, S.846-860
-
Leydesdorff, L.; Bornmann, L.; Mutz, R.; Opthof, T.: Turning the tables on citation analysis one more time : principles for comparing sets of documents (2011)
0.00
0.0010486324 = product of:
0.003145897 = sum of:
0.003145897 = weight(_text_:s in 4485) [ClassicSimilarity], result of:
0.003145897 = score(doc=4485,freq=2.0), product of:
0.043647945 = queryWeight, product of:
1.0872376 = idf(docFreq=40523, maxDocs=44218)
0.04014573 = queryNorm
0.072074346 = fieldWeight in 4485, 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=4485)
0.33333334 = coord(1/3)
- Source
- Journal of the American Society for Information Science and Technology. 62(2011) no.7, S.1370-1381
-
Bornmann, L.; Leydesdorff, L.: Which cities produce more excellent papers than can be expected? : a new mapping approach, using Google Maps, based on statistical significance testing (2011)
0.00
0.0010486324 = product of:
0.003145897 = sum of:
0.003145897 = weight(_text_:s in 4767) [ClassicSimilarity], result of:
0.003145897 = score(doc=4767,freq=2.0), product of:
0.043647945 = queryWeight, product of:
1.0872376 = idf(docFreq=40523, maxDocs=44218)
0.04014573 = queryNorm
0.072074346 = fieldWeight in 4767, 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=4767)
0.33333334 = coord(1/3)
- Source
- Journal of the American Society for Information Science and Technology. 62(2011) no.10, S.1954-1962
-
Leydesdorff, L.; Bornmann, L.: Mapping (USPTO) patent data using overlays to Google Maps (2012)
0.00
0.0010486324 = product of:
0.003145897 = sum of:
0.003145897 = weight(_text_:s in 288) [ClassicSimilarity], result of:
0.003145897 = score(doc=288,freq=2.0), product of:
0.043647945 = queryWeight, product of:
1.0872376 = idf(docFreq=40523, maxDocs=44218)
0.04014573 = queryNorm
0.072074346 = fieldWeight in 288, 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=288)
0.33333334 = coord(1/3)
- Source
- Journal of the American Society for Information Science and Technology. 63(2012) no.7, S.1442-1458
-
Leydesdorff, L.; Rotolo, D.; Rafols, I.: Bibliometric perspectives on medical innovation using the medical subject headings of PubMed (2012)
0.00
0.0010486324 = product of:
0.003145897 = sum of:
0.003145897 = weight(_text_:s in 494) [ClassicSimilarity], result of:
0.003145897 = score(doc=494,freq=2.0), product of:
0.043647945 = queryWeight, product of:
1.0872376 = idf(docFreq=40523, maxDocs=44218)
0.04014573 = queryNorm
0.072074346 = fieldWeight in 494, 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=494)
0.33333334 = coord(1/3)
- Source
- Journal of the American Society for Information Science and Technology. 63(2012) no.11, S.2239-2253
-
Leydesdorff, L.; Opthof, T.: Citation analysis with medical subject Headings (MeSH) using the Web of Knowledge : a new routine (2013)
0.00
0.0010486324 = product of:
0.003145897 = sum of:
0.003145897 = weight(_text_:s in 943) [ClassicSimilarity], result of:
0.003145897 = score(doc=943,freq=2.0), product of:
0.043647945 = queryWeight, product of:
1.0872376 = idf(docFreq=40523, maxDocs=44218)
0.04014573 = queryNorm
0.072074346 = fieldWeight in 943, 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=943)
0.33333334 = coord(1/3)
- Source
- Journal of the American Society for Information Science and Technology. 64(2013) no.5, S.1076-1080
-
Leydesdorff, L.; Radicchi, F.; Bornmann, L.; Castellano, C.; Nooy, W. de: Field-normalized impact factors (IFs) : a comparison of rescaling and fractionally counted IFs (2013)
0.00
0.0010486324 = product of:
0.003145897 = sum of:
0.003145897 = weight(_text_:s in 1108) [ClassicSimilarity], result of:
0.003145897 = score(doc=1108,freq=2.0), product of:
0.043647945 = queryWeight, product of:
1.0872376 = idf(docFreq=40523, maxDocs=44218)
0.04014573 = queryNorm
0.072074346 = fieldWeight in 1108, 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=1108)
0.33333334 = coord(1/3)
- Source
- Journal of the American Society for Information Science and Technology. 64(2013) no.11, S.2299-2309
-
Ye, F.Y.; Yu, S.S.; Leydesdorff, L.: ¬The Triple Helix of university-industry-government relations at the country level and its dynamic evolution under the pressures of globalization (2013)
0.00
0.0010486324 = product of:
0.003145897 = sum of:
0.003145897 = weight(_text_:s in 1110) [ClassicSimilarity], result of:
0.003145897 = score(doc=1110,freq=2.0), product of:
0.043647945 = queryWeight, product of:
1.0872376 = idf(docFreq=40523, maxDocs=44218)
0.04014573 = queryNorm
0.072074346 = fieldWeight in 1110, 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=1110)
0.33333334 = coord(1/3)
- Source
- Journal of the American Society for Information Science and Technology. 64(2013) no.11, S.2317-2325
-
Leydesdorff, L.; Goldstone, R.L.: Interdisciplinarity at the journal and specialty level : the changing knowledge bases of the journal cognitive science (2014)
0.00
0.0010486324 = product of:
0.003145897 = sum of:
0.003145897 = weight(_text_:s in 1187) [ClassicSimilarity], result of:
0.003145897 = score(doc=1187,freq=2.0), product of:
0.043647945 = queryWeight, product of:
1.0872376 = idf(docFreq=40523, maxDocs=44218)
0.04014573 = queryNorm
0.072074346 = fieldWeight in 1187, 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=1187)
0.33333334 = coord(1/3)
- Source
- Journal of the Association for Information Science and Technology. 65(2014) no.1, S.164-177
-
Rotolo, D.; Leydesdorff, L.: Matching Medline/PubMed data with Web of Science: A routine in R language (2015)
0.00
0.0010486324 = product of:
0.003145897 = sum of:
0.003145897 = weight(_text_:s in 2224) [ClassicSimilarity], result of:
0.003145897 = score(doc=2224,freq=2.0), product of:
0.043647945 = queryWeight, product of:
1.0872376 = idf(docFreq=40523, maxDocs=44218)
0.04014573 = queryNorm
0.072074346 = fieldWeight in 2224, 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=2224)
0.33333334 = coord(1/3)
- Source
- Journal of the Association for Information Science and Technology. 66(2015) no.10, S.2155-2159
-
Leydesdorff, L.; Bornmann, L.: ¬The operationalization of "fields" as WoS subject categories (WCs) in evaluative bibliometrics : the cases of "library and information science" and "science & technology studies" (2016)
0.00
0.0010486324 = product of:
0.003145897 = sum of:
0.003145897 = weight(_text_:s in 2779) [ClassicSimilarity], result of:
0.003145897 = score(doc=2779,freq=2.0), product of:
0.043647945 = queryWeight, product of:
1.0872376 = idf(docFreq=40523, maxDocs=44218)
0.04014573 = queryNorm
0.072074346 = fieldWeight in 2779, 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=2779)
0.33333334 = coord(1/3)
- Source
- Journal of the Association for Information Science and Technology. 67(2016) no.3, S.707-714
-
Rotolo, D.; Rafols, I.; Hopkins, M.M.; Leydesdorff, L.: Strategic intelligence on emerging technologies : scientometric overlay mapping (2017)
0.00
0.0010486324 = product of:
0.003145897 = sum of:
0.003145897 = weight(_text_:s in 3322) [ClassicSimilarity], result of:
0.003145897 = score(doc=3322,freq=2.0), product of:
0.043647945 = queryWeight, product of:
1.0872376 = idf(docFreq=40523, maxDocs=44218)
0.04014573 = queryNorm
0.072074346 = fieldWeight in 3322, 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=3322)
0.33333334 = coord(1/3)
- Source
- Journal of the Association for Information Science and Technology. 68(2017) no.1, S.214-233