-
Nicolaisen, J.: Citation analysis (2007)
0.03
0.0277539 = product of:
0.0555078 = sum of:
0.0555078 = product of:
0.1110156 = sum of:
0.1110156 = weight(_text_:22 in 6091) [ClassicSimilarity], result of:
0.1110156 = score(doc=6091,freq=2.0), product of:
0.17933457 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.051211677 = queryNorm
0.61904186 = fieldWeight in 6091, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.125 = fieldNorm(doc=6091)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Date
- 13. 7.2008 19:53:22
-
Van der Veer Martens, B.: Do citation systems represent theories of truth? (2001)
0.02
0.024531214 = product of:
0.049062427 = sum of:
0.049062427 = product of:
0.098124854 = sum of:
0.098124854 = weight(_text_:22 in 3925) [ClassicSimilarity], result of:
0.098124854 = score(doc=3925,freq=4.0), product of:
0.17933457 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.051211677 = queryNorm
0.54716086 = fieldWeight in 3925, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.078125 = fieldNorm(doc=3925)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Date
- 22. 7.2006 15:22:28
-
Gabel, J.: Improving information retrieval of subjects through citation-analysis (2006)
0.02
0.023527324 = product of:
0.04705465 = sum of:
0.04705465 = product of:
0.0941093 = sum of:
0.0941093 = weight(_text_:headings in 61) [ClassicSimilarity], result of:
0.0941093 = score(doc=61,freq=4.0), product of:
0.24837378 = queryWeight, product of:
4.849944 = idf(docFreq=940, maxDocs=44218)
0.051211677 = queryNorm
0.3789019 = fieldWeight in 61, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
4.849944 = idf(docFreq=940, maxDocs=44218)
0.0390625 = fieldNorm(doc=61)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Abstract
- Citation-chasing is proposed as a method of discovering additional terms to enhance subject-search retrieval by broadening and prioritizing the results. Subjects attached to records representing cited works are compared to subjects attached to records representing the original citing sources, and to the subjects yielded by chasing see-also references from the latter group of headings. Original citing sources were yielded via a subject-list search in a library catalog using the subject heading "Language and languages - Origin." A subject-search was employed to avoid subjectivity in choosing sources. References from the sources were searched in OCLC where applicable, and the subject headings were retrieved. The subjects were ranked first by number of citations from original sources, then by total citation-frequency. The results were tiered into 4 groups in a Bradford-like distribution. A similar rank and division was performed on the subjects representing the original citing sources, and those yielded by chasing see-also references. Both in terms of subject frequency and topic type, positive comparisons between citation chasing and see-also references show a confirmation of different methods of yielding alternative subjects. Exclusive results suggest potential mutual complementary value among these different methods.
-
Gabel, J.: Improving information retrieval of subjects through citation-analysis : a study (2006)
0.02
0.01663633 = product of:
0.03327266 = sum of:
0.03327266 = product of:
0.06654532 = sum of:
0.06654532 = weight(_text_:headings in 225) [ClassicSimilarity], result of:
0.06654532 = score(doc=225,freq=2.0), product of:
0.24837378 = queryWeight, product of:
4.849944 = idf(docFreq=940, maxDocs=44218)
0.051211677 = queryNorm
0.2679241 = fieldWeight in 225, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
4.849944 = idf(docFreq=940, maxDocs=44218)
0.0390625 = fieldNorm(doc=225)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Abstract
- Citation-chasing is proposed as a method of discovering additional terms to enhance subjectsearch retrieval. Subjects attached to OCLC records for cited works are compared to those attached to original citing sources. Citing sources were produced via a subject-list search in a library catalog using the LCSH "Language and languages-Origin." A subject-search was employed to avoid subjectivity in choosing sources. References from the sources were searched in OCLC where applicable, and the subject headings were retrieved. The subjects were ranked by citation-frequency and tiered into 3 groups in a Bradford-like distribution. Highly cited subjects were produced that were not revealed through the original search. A difference in relative importance among the subjects was also revealed. Broad extra-linguistic topics like evolution are more prominent than specific linguistic topics like phonology. There are exceptions, which appear somewhat predictable by the amount of imbalance in citation-representation among the 2 sources. Citation leaders were also produced for authors and secondary-source titles.
-
Larivière, V.; Gingras, Y.; Archambault, E.: ¬The decline in the concentration of citations, 1900-2007 (2009)
0.01
0.014718729 = product of:
0.029437458 = sum of:
0.029437458 = product of:
0.058874916 = sum of:
0.058874916 = weight(_text_:22 in 2763) [ClassicSimilarity], result of:
0.058874916 = score(doc=2763,freq=4.0), product of:
0.17933457 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.051211677 = queryNorm
0.32829654 = fieldWeight in 2763, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.046875 = fieldNorm(doc=2763)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Date
- 22. 3.2009 19:22:35
-
Garfield, E.: Recollections of Irving H. Sher 1924-1996 : Polymath/information scientist extraordinaire (2001)
0.01
0.012142331 = product of:
0.024284663 = sum of:
0.024284663 = product of:
0.048569325 = sum of:
0.048569325 = weight(_text_:22 in 6920) [ClassicSimilarity], result of:
0.048569325 = score(doc=6920,freq=2.0), product of:
0.17933457 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.051211677 = queryNorm
0.2708308 = fieldWeight in 6920, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.0546875 = fieldNorm(doc=6920)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Date
- 16.12.2001 14:01:22
-
Van der Veer Martens, B.; Goodrum, G.: ¬The diffusion of theories : a functional approach (2006)
0.01
0.012142331 = product of:
0.024284663 = sum of:
0.024284663 = product of:
0.048569325 = sum of:
0.048569325 = weight(_text_:22 in 5269) [ClassicSimilarity], result of:
0.048569325 = score(doc=5269,freq=2.0), product of:
0.17933457 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.051211677 = queryNorm
0.2708308 = fieldWeight in 5269, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.0546875 = fieldNorm(doc=5269)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Date
- 22. 7.2006 15:20:01
-
Chan, H.C.; Kim, H.-W.; Tan, W.C.: Information systems citation patterns from International Conference on Information Systems articles (2006)
0.01
0.010407712 = product of:
0.020815425 = sum of:
0.020815425 = product of:
0.04163085 = sum of:
0.04163085 = weight(_text_:22 in 201) [ClassicSimilarity], result of:
0.04163085 = score(doc=201,freq=2.0), product of:
0.17933457 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.051211677 = queryNorm
0.23214069 = fieldWeight in 201, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.046875 = fieldNorm(doc=201)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Date
- 3. 1.2007 17:22:03
-
Mingers, J.; Burrell, Q.L.: Modeling citation behavior in Management Science journals (2006)
0.01
0.010407712 = product of:
0.020815425 = sum of:
0.020815425 = product of:
0.04163085 = sum of:
0.04163085 = weight(_text_:22 in 994) [ClassicSimilarity], result of:
0.04163085 = score(doc=994,freq=2.0), product of:
0.17933457 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.051211677 = queryNorm
0.23214069 = fieldWeight in 994, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.046875 = fieldNorm(doc=994)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Date
- 26.12.2007 19:22:05
-
Ma, N.; Guan, J.; Zhao, Y.: Bringing PageRank to the citation analysis (2008)
0.01
0.010407712 = product of:
0.020815425 = sum of:
0.020815425 = product of:
0.04163085 = sum of:
0.04163085 = weight(_text_:22 in 2064) [ClassicSimilarity], result of:
0.04163085 = score(doc=2064,freq=2.0), product of:
0.17933457 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.051211677 = queryNorm
0.23214069 = fieldWeight in 2064, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.046875 = fieldNorm(doc=2064)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Date
- 31. 7.2008 14:22:05
-
Ahlgren, P.; Jarneving, B.; Rousseau, R.: Requirements for a cocitation similarity measure, with special reference to Pearson's correlation coefficient (2003)
0.01
0.006938475 = product of:
0.01387695 = sum of:
0.01387695 = product of:
0.0277539 = sum of:
0.0277539 = weight(_text_:22 in 5171) [ClassicSimilarity], result of:
0.0277539 = score(doc=5171,freq=2.0), product of:
0.17933457 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.051211677 = queryNorm
0.15476047 = fieldWeight in 5171, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.03125 = fieldNorm(doc=5171)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Date
- 9. 7.2006 10:22:35
