-
Castro, R. de; Grossmann, J.W.: Famous trails to Paul Erdös (1999)
0.05
0.05303482 = product of:
0.10606964 = sum of:
0.039498474 = weight(_text_:r in 3991) [ClassicSimilarity], result of:
0.039498474 = score(doc=3991,freq=2.0), product of:
0.13499679 = queryWeight, product of:
3.3102584 = idf(docFreq=4387, maxDocs=44218)
0.040781345 = queryNorm
0.29258826 = fieldWeight in 3991, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.3102584 = idf(docFreq=4387, maxDocs=44218)
0.0625 = fieldNorm(doc=3991)
0.06657116 = weight(_text_:de in 3991) [ClassicSimilarity], result of:
0.06657116 = score(doc=3991,freq=2.0), product of:
0.17525738 = queryWeight, product of:
4.297489 = idf(docFreq=1634, maxDocs=44218)
0.040781345 = queryNorm
0.37984797 = fieldWeight in 3991, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
4.297489 = idf(docFreq=1634, maxDocs=44218)
0.0625 = fieldNorm(doc=3991)
0.5 = coord(2/4)
-
Ahlgren, P.; Jarneving, B.; Rousseau, R.: Requirements for a cocitation similarity measure, with special reference to Pearson's correlation coefficient (2003)
0.03
0.029713089 = product of:
0.059426177 = sum of:
0.048375558 = weight(_text_:r in 5171) [ClassicSimilarity], result of:
0.048375558 = score(doc=5171,freq=12.0), product of:
0.13499679 = queryWeight, product of:
3.3102584 = idf(docFreq=4387, maxDocs=44218)
0.040781345 = queryNorm
0.358346 = fieldWeight in 5171, product of:
3.4641016 = tf(freq=12.0), with freq of:
12.0 = termFreq=12.0
3.3102584 = idf(docFreq=4387, maxDocs=44218)
0.03125 = fieldNorm(doc=5171)
0.011050618 = product of:
0.022101237 = sum of:
0.022101237 = weight(_text_:22 in 5171) [ClassicSimilarity], result of:
0.022101237 = score(doc=5171,freq=2.0), product of:
0.14280932 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.040781345 = 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(2/4)
- Abstract
- Ahlgren, Jarneving, and. Rousseau review accepted procedures for author co-citation analysis first pointing out that since in the raw data matrix the row and column values are identical i,e, the co-citation count of two authors, there is no clear choice for diagonal values. They suggest the number of times an author has been co-cited with himself excluding self citation rather than the common treatment as zeros or as missing values. When the matrix is converted to a similarity matrix the normal procedure is to create a matrix of Pearson's r coefficients between data vectors. Ranking by r and by co-citation frequency and by intuition can easily yield three different orders. It would seem necessary that the adding of zeros to the matrix will not affect the value or the relative order of similarity measures but it is shown that this is not the case with Pearson's r. Using 913 bibliographic descriptions form the Web of Science of articles form JASIS and Scientometrics, authors names were extracted, edited and 12 information retrieval authors and 12 bibliometric authors each from the top 100 most cited were selected. Co-citation and r value (diagonal elements treated as missing) matrices were constructed, and then reconstructed in expanded form. Adding zeros can both change the r value and the ordering of the authors based upon that value. A chi-squared distance measure would not violate these requirements, nor would the cosine coefficient. It is also argued that co-citation data is ordinal data since there is no assurance of an absolute zero number of co-citations, and thus Pearson is not appropriate. The number of ties in co-citation data make the use of the Spearman rank order coefficient problematic.
- Date
- 9. 7.2006 10:22:35
-
Hjerppe, R.: ¬An outline of bibliometrics and citation analysis (1980)
0.03
0.02792964 = product of:
0.11171856 = sum of:
0.11171856 = weight(_text_:r in 1115) [ClassicSimilarity], result of:
0.11171856 = score(doc=1115,freq=4.0), product of:
0.13499679 = queryWeight, product of:
3.3102584 = idf(docFreq=4387, maxDocs=44218)
0.040781345 = queryNorm
0.8275646 = fieldWeight in 1115, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
3.3102584 = idf(docFreq=4387, maxDocs=44218)
0.125 = fieldNorm(doc=1115)
0.25 = coord(1/4)
- Type
- r
-
Umstätter, W.: Szientometrische Verfahren (2004)
0.03
0.02651741 = product of:
0.05303482 = sum of:
0.019749237 = weight(_text_:r in 2920) [ClassicSimilarity], result of:
0.019749237 = score(doc=2920,freq=2.0), product of:
0.13499679 = queryWeight, product of:
3.3102584 = idf(docFreq=4387, maxDocs=44218)
0.040781345 = queryNorm
0.14629413 = fieldWeight in 2920, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.3102584 = idf(docFreq=4387, maxDocs=44218)
0.03125 = fieldNorm(doc=2920)
0.03328558 = weight(_text_:de in 2920) [ClassicSimilarity], result of:
0.03328558 = score(doc=2920,freq=2.0), product of:
0.17525738 = queryWeight, product of:
4.297489 = idf(docFreq=1634, maxDocs=44218)
0.040781345 = queryNorm
0.18992399 = fieldWeight in 2920, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
4.297489 = idf(docFreq=1634, maxDocs=44218)
0.03125 = fieldNorm(doc=2920)
0.5 = coord(2/4)
- Abstract
- Die Szientometrie beschäftigt sich mit der Messbarkeit wissenschaftlicher Leistungen anhand bibliothekarisch nachweisbarer Publikationsergebnisse. Bei genauer Betrachtung ist es ihr Ziel, die Wissenszunahme der Wissenschaft zu messen. Die wissenschaftliche Produktion in Form von Publikationen wächst seit über dreihundert Jahren konstant mit ca. 3,5% pro Jahr. Das entspricht einerVerdopplungsrate von 20 Jahren, die zuerst dem Bibliothekar Fremont Rider 1948 bei Büchern auffiel und die 1963 von Derek J. de Solla Price auch für das Wachstum von Zeitschriften und Bibliografien bestätigt wurde. Die Konstanz dieser Evolution, unabhängig aller sich ereignenden Katastrophen, ist nur zum Teil verstanden, macht aber den unaufhaltsamen Fortschritt der Wissenschaft deutlich. Alle 20 Jahre wird so viel publiziert wie in allen Jahrhunderten davor. Eine etwa gleiche Zunahme verzeichnen die Wissenschaftler, die damit etwa gleich produktiv bleiben. Von ihnen allen sind damit ca. 87% unsere heutigen Zeitgenossen. Aus diesem Wachstum heraus können wir abschätzen, dass in 100.000 laufenden Zeitschriften heute etwa 10 Mio. Publikationen jährlich erscheinen, die von 10 Mio. Wissenschaftlern verfasst werden. Dabei definieren sich nur die als Wissenschaftler, die durchschnittlich eine Publikation jährlich verfassen. Die gesamte Produktion an Buchtiteln, die bisher erschien, dürfte bei etwa 100 Mio. liegen. Davon sind etwa 20 Mio. als wissenschaftlich einzustufen. Wenn folglich 87% aller Wissenschaftler noch heute leben, so betrug die Gesamtzahl der Wissenschaftler in der Welt bisher 11,5 Mio., die in ihrem Leben durchschnittlich 1,5 Bücher pro Kopf verfassten, und etwa das 10-20fache an Zeitschriftenbeiträgen leisteten. Ein Teil dieser Bücher sind allerdings Neuauflagen und Übersetzungen. Nach Lotka, A. J. ist die Produktivität der Wissenschaftler eine schiefe Verteilung von der Form A/n**2, wobei A die Zahl der Autoren mit nur einer Publikation ist und n die Publikationen pro Autor. Während Price in seinen "Networks of Scientific Papers" Vergleichswerte von n**2,5 bis n**3 angab, zeigten Untersuchungen am Science Citation Index (SCI), die auf die gesamte naturwissenschaftliche Literatur hochgerechnet wurden, eher einen Wert von n**1,7. Auf die Tatsache, dass eine Verdopplungsrate der Wissenschaftler von 20 Jahren und eine solche der Menschheit von etwa 50 Jahren dazu führt, dass eines Tages alle Menschen Wissenschaftler werden, hat Price bereits 1963 hingewiesen. Dieser Zustand müsste bei 10 Mio. Wissenschaftlern und 6 Mrd. Menschen in etwa 300 Jahren eintreten, ein nur scheinbar absurder Gedanke, wenn man bedenkt, dass man sich vor 300 Jahren auch kaum vorstellen konnte, dass alle Menschen Lesen, Schreiben und Rechnen lernen können, und dass wir uns ungebildete Menschen immer weniger leisten können.
- Source
- Grundlagen der praktischen Information und Dokumentation. 5., völlig neu gefaßte Ausgabe. 2 Bde. Hrsg. von R. Kuhlen, Th. Seeger u. D. Strauch. Begründet von Klaus Laisiepen, Ernst Lutterbeck, Karl-Heinrich Meyer-Uhlenried. Bd.1: Handbuch zur Einführung in die Informationswissenschaft und -praxis
-
Wouters, P.; Vries, R. de: Formally citing the Web (2004)
0.03
0.02651741 = product of:
0.05303482 = sum of:
0.019749237 = weight(_text_:r in 3093) [ClassicSimilarity], result of:
0.019749237 = score(doc=3093,freq=2.0), product of:
0.13499679 = queryWeight, product of:
3.3102584 = idf(docFreq=4387, maxDocs=44218)
0.040781345 = queryNorm
0.14629413 = fieldWeight in 3093, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.3102584 = idf(docFreq=4387, maxDocs=44218)
0.03125 = fieldNorm(doc=3093)
0.03328558 = weight(_text_:de in 3093) [ClassicSimilarity], result of:
0.03328558 = score(doc=3093,freq=2.0), product of:
0.17525738 = queryWeight, product of:
4.297489 = idf(docFreq=1634, maxDocs=44218)
0.040781345 = queryNorm
0.18992399 = fieldWeight in 3093, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
4.297489 = idf(docFreq=1634, maxDocs=44218)
0.03125 = fieldNorm(doc=3093)
0.5 = coord(2/4)
-
Page, L.; Brin, S.; Motwani, R.; Winograd, T.: ¬The PageRank citation ranking : Bringing order to the Web (1999)
0.02
0.017280582 = product of:
0.06912233 = sum of:
0.06912233 = weight(_text_:r in 496) [ClassicSimilarity], result of:
0.06912233 = score(doc=496,freq=2.0), product of:
0.13499679 = queryWeight, product of:
3.3102584 = idf(docFreq=4387, maxDocs=44218)
0.040781345 = queryNorm
0.51202947 = fieldWeight in 496, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.3102584 = idf(docFreq=4387, maxDocs=44218)
0.109375 = fieldNorm(doc=496)
0.25 = coord(1/4)
-
Rajan, T.N.; Guha, B.; Sayanarayana, R.: Associate relationship of concepts as seen through citations and citation index (1982)
0.01
0.014811928 = product of:
0.059247714 = sum of:
0.059247714 = weight(_text_:r in 58) [ClassicSimilarity], result of:
0.059247714 = score(doc=58,freq=2.0), product of:
0.13499679 = queryWeight, product of:
3.3102584 = idf(docFreq=4387, maxDocs=44218)
0.040781345 = queryNorm
0.4388824 = fieldWeight in 58, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.3102584 = idf(docFreq=4387, maxDocs=44218)
0.09375 = fieldNorm(doc=58)
0.25 = coord(1/4)
-
De Bellis, N.: Bibliometrics and citation analysis : from the Science citation index to cybermetrics (2008)
0.01
0.01441308 = product of:
0.05765232 = sum of:
0.05765232 = weight(_text_:de in 3585) [ClassicSimilarity], result of:
0.05765232 = score(doc=3585,freq=6.0), product of:
0.17525738 = queryWeight, product of:
4.297489 = idf(docFreq=1634, maxDocs=44218)
0.040781345 = queryNorm
0.328958 = fieldWeight in 3585, product of:
2.4494898 = tf(freq=6.0), with freq of:
6.0 = termFreq=6.0
4.297489 = idf(docFreq=1634, maxDocs=44218)
0.03125 = fieldNorm(doc=3585)
0.25 = coord(1/4)
- Footnote
- Rez. in: JASIS 61(2010) no.1, S.205-207 (Jeppe Nicolaisen) Weitere Rez. in: Mitt VÖB 63(2010) H.1/2, S.134-135 (J. Gorraiz u. M. Wieland): "Das Buch entwickelte sich aus einem mehrjährigen Forschungsprojekt mit dem Ziel, den schwer verständlichen quantitativen Kern der Bibliometrie in einem für primär italienische Bibliothekare leichteren historischen und philosophischen Kontext zu vermitteln, wie der Autor im Vorwort erklärt. Dank einer Empfehlung von Eugene Garfield steht dieses Werk nun auch in englischer Übersetzung einer internationalen Leserschaft zur Verfügung. Die über 400 Seiten lange Monografie von de Bellis gibt in acht Kapiteln einen detaillierten und sehr präzisen Überblick über die Bibliometrie und die Zitationsanalyse, ihre Natur und Entwicklung, ihre Kontroverse und Prognose. . . . Das Buch von de Bellis ist sehr empfehlenswert für alle die beabsichtigen, sich mit dieser neuen Wissenschaft zu beschäftigen. Es endet mit folgendem Statement: "Scientometricians have to learn to live in a multidimensional world". Und genau hier liegt die Herausforderung und Schönheit dieses Metiers."
-
Araújo, P.C. de; Gutierres Castanha, R.C.; Hjoerland, B.: Citation indexing and indexes (2021)
0.01
0.012482093 = product of:
0.04992837 = sum of:
0.04992837 = weight(_text_:de in 444) [ClassicSimilarity], result of:
0.04992837 = score(doc=444,freq=2.0), product of:
0.17525738 = queryWeight, product of:
4.297489 = idf(docFreq=1634, maxDocs=44218)
0.040781345 = queryNorm
0.28488597 = fieldWeight in 444, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
4.297489 = idf(docFreq=1634, maxDocs=44218)
0.046875 = fieldNorm(doc=444)
0.25 = coord(1/4)
-
Nicolaisen, J.: Citation analysis (2007)
0.01
0.011050618 = product of:
0.044202473 = sum of:
0.044202473 = product of:
0.088404946 = sum of:
0.088404946 = weight(_text_:22 in 6091) [ClassicSimilarity], result of:
0.088404946 = score(doc=6091,freq=2.0), product of:
0.14280932 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.040781345 = 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)
0.25 = coord(1/4)
- Date
- 13. 7.2008 19:53:22
-
Døsen, K.: One more reference on self-reference (1992)
0.01
0.011050618 = product of:
0.044202473 = sum of:
0.044202473 = product of:
0.088404946 = sum of:
0.088404946 = weight(_text_:22 in 4604) [ClassicSimilarity], result of:
0.088404946 = score(doc=4604,freq=2.0), product of:
0.14280932 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.040781345 = queryNorm
0.61904186 = fieldWeight in 4604, 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=4604)
0.5 = coord(1/2)
0.25 = coord(1/4)
- Date
- 7. 2.2005 14:10:22
-
Rousseau, R.: Timelines in citation research (2006)
0.01
0.009874619 = product of:
0.039498474 = sum of:
0.039498474 = weight(_text_:r in 1746) [ClassicSimilarity], result of:
0.039498474 = score(doc=1746,freq=2.0), product of:
0.13499679 = queryWeight, product of:
3.3102584 = idf(docFreq=4387, maxDocs=44218)
0.040781345 = queryNorm
0.29258826 = fieldWeight in 1746, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.3102584 = idf(docFreq=4387, maxDocs=44218)
0.0625 = fieldNorm(doc=1746)
0.25 = coord(1/4)
-
Van der Veer Martens, B.: Do citation systems represent theories of truth? (2001)
0.01
0.009767459 = product of:
0.039069835 = sum of:
0.039069835 = product of:
0.07813967 = sum of:
0.07813967 = weight(_text_:22 in 3925) [ClassicSimilarity], result of:
0.07813967 = score(doc=3925,freq=4.0), product of:
0.14280932 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.040781345 = 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)
0.25 = coord(1/4)
- Date
- 22. 7.2006 15:22:28
-
Milman, B.L.: Individual co-citation clusters as nuclei of complete and dynamic informetric models of scientific and technological areas (1994)
0.01
0.008640291 = product of:
0.034561165 = sum of:
0.034561165 = weight(_text_:r in 37) [ClassicSimilarity], result of:
0.034561165 = score(doc=37,freq=2.0), product of:
0.13499679 = queryWeight, product of:
3.3102584 = idf(docFreq=4387, maxDocs=44218)
0.040781345 = queryNorm
0.25601473 = fieldWeight in 37, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.3102584 = idf(docFreq=4387, maxDocs=44218)
0.0546875 = fieldNorm(doc=37)
0.25 = coord(1/4)
- Abstract
- Describes the construction of improved informetric models of individual scientific and technological areas on the basis of individual co citation clusters. The developed methodology of replenishment of research front with accidently absent papers describes the model more completely. Proposes the simple method of cluster 'dynamization' for the study of evolution of research area. The transition under consideration from co citation clusters to lexical maps of papers and patents enables the monitoring of the relationshuip between R and D in a given technological area. Provides the example from modern chemical engineering of Pressure-Swing Adsorption
-
Wagner-Döbler, R.: ¬Die Nutzung von Zitationsindizes durch deutsche Soziologen : Ergebnisse einer Umfrage (2001)
0.01
0.008640291 = product of:
0.034561165 = sum of:
0.034561165 = weight(_text_:r in 6831) [ClassicSimilarity], result of:
0.034561165 = score(doc=6831,freq=2.0), product of:
0.13499679 = queryWeight, product of:
3.3102584 = idf(docFreq=4387, maxDocs=44218)
0.040781345 = queryNorm
0.25601473 = fieldWeight in 6831, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.3102584 = idf(docFreq=4387, maxDocs=44218)
0.0546875 = fieldNorm(doc=6831)
0.25 = coord(1/4)
-
Brooks, T.A.: How good are the best papers of JASIS? (2000)
0.01
0.007405964 = product of:
0.029623857 = sum of:
0.029623857 = weight(_text_:r in 4593) [ClassicSimilarity], result of:
0.029623857 = score(doc=4593,freq=2.0), product of:
0.13499679 = queryWeight, product of:
3.3102584 = idf(docFreq=4387, maxDocs=44218)
0.040781345 = queryNorm
0.2194412 = fieldWeight in 4593, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.3102584 = idf(docFreq=4387, maxDocs=44218)
0.046875 = fieldNorm(doc=4593)
0.25 = coord(1/4)
- Content
- Top by numbers of citations: (1) Saracevic, T. et al.: A study of information seeking and retrieving I-III (1988); (2) Bates, M.: Information search tactics (1979); (3) Cooper, W.S.: On selecting a measure of retrieval effectiveness (1973); (4) Marcus, R.S.: A experimental comparison of the effectiveness of computers and humans as search intermediaries (1983); (4) Fidel, R.: Online searching styles (1984)
-
Chen, C.; Cribbin, T.; Macredie, R.; Morar, S.: Visualizing and tracking the growth of competing paradigms : two case studies (2002)
0.01
0.007405964 = product of:
0.029623857 = sum of:
0.029623857 = weight(_text_:r in 602) [ClassicSimilarity], result of:
0.029623857 = score(doc=602,freq=2.0), product of:
0.13499679 = queryWeight, product of:
3.3102584 = idf(docFreq=4387, maxDocs=44218)
0.040781345 = queryNorm
0.2194412 = fieldWeight in 602, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.3102584 = idf(docFreq=4387, maxDocs=44218)
0.046875 = fieldNorm(doc=602)
0.25 = coord(1/4)
-
New Web Citation Index (2004)
0.01
0.007405964 = product of:
0.029623857 = sum of:
0.029623857 = weight(_text_:r in 2270) [ClassicSimilarity], result of:
0.029623857 = score(doc=2270,freq=2.0), product of:
0.13499679 = queryWeight, product of:
3.3102584 = idf(docFreq=4387, maxDocs=44218)
0.040781345 = queryNorm
0.2194412 = fieldWeight in 2270, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.3102584 = idf(docFreq=4387, maxDocs=44218)
0.046875 = fieldNorm(doc=2270)
0.25 = coord(1/4)
- Abstract
- Philadelphia, PA USA-London UK-Princeton, NJ February, 25, 2004 - Today, Thomson ISI and NEC Laboratories America (NEC) announced their collaboration to create a comprehensive, multidisciplinary citation index for Web-based scholarly resources. The new Web Citation Index(tm) will combine a suite of technologies developed by NEC, including "autonomous citation indexing" tools from NEC's CiteSeer environment, with the capabilities underlying ISI Web of KnowledgeSM. Thomson ISI editors will carefully monitor the quality of this new resource to ensure all indexed material meets the Thomson ISI high-quality standards. During 2004, Thomson ISI and NEC will operate a pilot of the new resource to receive feedback from the scientific and scholarly community. Full access to the index is projected for early 2005. When fully operational, the new resource will be a unique content collection within ISI Web of Knowledge. It will complement the Thomson ISI Web of Science(r), and provide researchers with a new gateway to discovery 4/3 using citation relationships among Web-based documents, such as pre-prints, proceedings, and "open access" research publications.
-
Frandsen, T.F.; Rousseau, R.: Article impact calculated over arbitrary periods (2005)
0.01
0.007405964 = product of:
0.029623857 = sum of:
0.029623857 = weight(_text_:r in 3264) [ClassicSimilarity], result of:
0.029623857 = score(doc=3264,freq=2.0), product of:
0.13499679 = queryWeight, product of:
3.3102584 = idf(docFreq=4387, maxDocs=44218)
0.040781345 = queryNorm
0.2194412 = fieldWeight in 3264, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.3102584 = idf(docFreq=4387, maxDocs=44218)
0.046875 = fieldNorm(doc=3264)
0.25 = coord(1/4)
-
Boyack, K.W.; Small, H.; Klavans, R.: Improving the accuracy of co-citation clustering using full text (2013)
0.01
0.007405964 = product of:
0.029623857 = sum of:
0.029623857 = weight(_text_:r in 1036) [ClassicSimilarity], result of:
0.029623857 = score(doc=1036,freq=2.0), product of:
0.13499679 = queryWeight, product of:
3.3102584 = idf(docFreq=4387, maxDocs=44218)
0.040781345 = queryNorm
0.2194412 = fieldWeight in 1036, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.3102584 = idf(docFreq=4387, maxDocs=44218)
0.046875 = fieldNorm(doc=1036)
0.25 = coord(1/4)
