Post on 10-May-2015
Contents
Introduction Citation analysis Journal Impact Networking Additional tips Affiliation
Not your average publishing tips
My article has been cited 22 times!
But was does it mean?
Image: www.rcac.net.au
How do we compare numbers?
Scientist Z. Math has a publication from 1999 with 17 citations
Scientist M. Biology has a publication from 2006 with 24 citations
Baselines for Mathematics
Baseline Molecular Biology
0
100
200
300
400
0 2 4 6 8 10 12
Years after publication
Cu
mu
lati
ve
no
. c
ita
tio
ns Baseline
top 10%
top 1%
Bibliometric indicators: An example
Branderhorst, H.M., Liskamp, R.M.J., Visser, G.M., Pieters, R.J. (2007) Strong inhibition of cholera toxin binding by galactose dendrimers. Chemical Communications 47: 5043 - 5045. Times cited: 19 times
Chemical Communications (from journals menu ESI) Chemistry
Baseline data (from ESI) Article from 2007 in Chemistry: Average: 7.05 citations, 10%: 17 citations,
1%: 54 citations RI= 19 / 7.05 = 2.7
Advanced bibliometric indicators Follow van Raan (1996) as closely as possible;
but..... Web of Science is used for citation data
We can’t make corrections for self citations Essential Science Indicators for baseline data
(World average, Top 10% and Top 1%) Limited number of research fields (22) Same baseline data used for selected document types
• (articles, reviews, notes and letters (and selected proceedings))
We can determine the representativeness of the citation analysis
Data aggregation in Wageningen Yield
“Crown Indicator” like“MNCS” like
RIKILT SEP table 2002-2009
RIKILT WoS publications 2002-2009
2002 2003 2004 2005 2006 2007 2008 2009Total
refereed journal articles 34 44 46 53 50 71 79 90 467
WoS 28 40 42 52 48 69 75 86 440WoS coverage 82% 91% 91% 98% 96% 97% 95% 96% 94%
RIKILT impact by category 2002-2009
RIKILT impact by year
Some Wageningen UR Institutes 2002-2007
N C Wavg CPP CI RI %T10 (T10) %T1 (T1) %NC (NC)
A&F 345 4212 3325.71 12.21 1.27 1.40 16% (55) 1% (5) 4% (15)
Alterra 671 10032 6797.97 14.95 1.48 1.59 19% (129) 3% (17) 6% (42)
ASG 312 3146 2905.42 10.08 1.08 1.19 13% (42) 1% (4) 7% (21)
LEI 89 665 730.53 7.47 0.91 1.11 9% (8) 0% (0) 13% (12)
PRI 867 16864 9925.7 19.45 1.70 1.90 22% (194) 5% (40) 4% (36)
RIKILT 272 5478 3085.4 20.14 1.78 2.08 26% (70) 7% (20) 4% (11)
Journal selection and article impact
0 5 10 15 20 25 30 350
2
4
6
8
10
12
14
Journal Impact Factor
Artic
le R
elati
ve Im
pact
JIF quartiles and article impact for RIKILT
P RI St.Dev.
Q1 204 2.39 2.69
Q2 48 1.18 1.07
Q3 9 1.03 0.90
Q4 3 0.61 0.58
Avg 264 1.70 2.47
Selected Quartile 1 journals for RIKILTArticles Journal JIF
27 ANALYTICA CHIMICA ACTA 3.18613 FOOD ADDITIVES AND CONTAMINANTS 1.61012 FOOD AND CHEMICAL TOXICOLOGY 2.34111 JOURNAL OF NUTRITION 3.6898 JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2.3276 RISK ANALYSIS 1.5104 ANALYTICAL CHEMISTRY 5.4504 JOURNAL OF CHROMATOGRAPHY A 3.0964 ANALYTICAL BIOCHEMISTRY 2.3704 JOURNAL OF AOAC INTERNATIONAL 1.1473 AMERICAN JOURNAL OF CLINICAL NUTRITION 5.8533 DIABETOLOGIA 5.2473 CELLULAR AND MOLECULAR LIFE SCIENCES 4.8123 ANALYTICAL AND BIOANALYTICAL CHEMISTRY 2.8673 CHEMOSPHERE 2.7393 FOOD CHEMISTRY 2.4333 ANIMAL FEED SCIENCE AND TECHNOLOGY 1.290
Journal selection and impact of Dutch Univ.
NOWT (2008). Wetenschaps- en Technologie- Indicatoren 2008. Maastricht, Nederlands Observatorium van Wetenschap en Technologie (NOWT).
Journal selection at EPS
EPS Annual Report 2009. http://www.graduateschool-eps.info/
Journal selection and impact at EPS
JIF Pubs RI St. Dev.
> 10 55 8.73 8.73
5 < 10 156 4.07 3.64
2 < 5 444 1.93 2.08
0 < 2 326 1.35 3.51
Other journal quality information sources
Essential Science Indicators (WoK platform) ScimagoJR (based on Scopus) Journalmetrics.com (based on Scopus)
The impact factor Matthew effect
The journal in which papers are published have a strong influence on their citation rates, as duplicate papers published in high-impact journals obtain, on average, twice as many citations as their identical counterparts published in journals with lower impact factors..
Larivière, V. and Y. Gingras (2010). The impact factor's Matthew Effect: A natural experiment in bibliometrics. Journal of the American Society for Information Science and Technology 61(2): 424-427. http://dx.doi.org/10.1002/asi.21232
Final word on journal quality
It is better to publish one paper in a quality journal than multiple papers in lesser journals. [...]. Try to publish in journals that have high impact factors; chances are your paper will have high impact, too, if accepted.
Bourne, P. E. (2005). Ten Simple Rules for Getting Published.
PLoS Comput Biol 1(5): e57.
Networking
International cooperation
NOWT (2008). Wetenschaps- en Technologie- Indicatoren 2008. Maastricht, Nederlands Observatorium van Wetenschap en Technologie (NOWT).
No Cooperation International CooperationUniversity % output Impact % output ImpactEUR 16 1.13 40 2.00RUG 23 1.07 39 1.43RUN 20 0.94 39 1.46TUD 33 1.24 43 1.52TUE 29 1.50 41 1.52UL 20 0.90 46 1.38UM 16 0.90 42 1.48UT 33 1.33 37 1.36UU 21 1.54 39 1.61UvA 20 1.15 43 1.64UvT 25 1.15 42 1.21VUA 18 1.15 43 1.68WUR 21 1.12 49 1.27 Total 25 1.15 44 1.53
Cooperation is effective
NOWT (2010). Wetenschaps- en Technologie- Indicatoren 2010. Maastricht, Nederlands Observatorium van Wetenschap en Technologie (NOWT).
Field Normalized Article Impact
UniversitySingle author
addressNational Co-publication
International Co-publication
EUR 1.09 1.16 1.91TUE 1.51 1.47 1.37VUA 1.17 1.13 1.68UvA 1.19 1.16 1.63TUD 1.52 1.13 1.41LEI 0.99 1.15 1.59UT 1.25 1.35 1.41UU 1.09 1.14 1.61RU 1.03 1.06 1.66RUG 1.12 1.08 1.51WUR 1.02 1.23 1.37UM 0.87 1.07 1.50UvT 0.91 0.89 1.02
Cooperation...
Wuchty, S., B. F. Jones, et al. (2007). The increasing dominance of teams in production of knowledge. Science 316(5827): 1036-1039. http://dx.doi.org/10.1126/science.1136099
Teams increasingly dominate solo authors in the production of knowledge. Research is increasingly done in teams across nearly all fields.
Teams typically produce more frequently cited research than individuals do, and this advantage has been increasing over time.
Teams now also produce the exceptionally high-impact research, even where that distinction was once the domain of solo authors.
Networking is important!Start early, make use of social networking tools
LinkedIn You can include publication lists!
Facebook Social networks for scientists
Academics.edu, Nature networks, Labmeeting
Social networking for Scientists
Social networking for Scientists
Social networking for Scientists
Social networking for Scientists
Social networking for Scientists
Self citations and more
Self citations
The model [...] implies that external citations are enhanced by self-citations, so that we have the “chain reaction:” Larger size leads to more self-citations, which lead to more external citations.
11/28
van Raan, A. F. J. (2008). Self-citation as an impact-reinforcing mechanism in the science system. Journal of the American Society for Information Science and Technology 59(10): 1631-1643.
More on references
Articles that cite more references are in turn cited more themselves
Webster, G. D., P. K. Jonason, et al. (2009). Hot Topics and Popular Papers in Evolutionary Psychology: Analyses of Title Words and Citation Counts in Evolution and Human Behavior, 1979 – 2008. Evolutionary Psychology 7(3): 348-362. http://www.epjournal.net/filestore/ep07348362.pdf
Citing across disciplines, risky but rewardingShi, X., J. Leskovec, et al. (2010). Citing for high impact. Proceedings of the ACM International Conference on Digital Libraries. p.49-58 http://doi.acm.org/10.1145/1816123.1816131
Make your pubications OA available Be aware of the copyrights agreement at the
moment of publishing Golden Road
PloS Journals, BMC, etcGreen Road
Self archived copies Wageningen Yield, RePec, ArXiv etc.
Open Choice Hybrid system, author pays and library pays Springer journals are a favourable exception
Is there a citation advantage for OA?
Evidence is not entirely conclusive, but mounting van Raan has started to self archive his preprints
OA is important for developing countriesEvans, J.A., Reimer, J., 2009. Open access and global participation in science.
Science. 323, 1025. http://dx.doi.org/10.1126/science.1154562
What’s in a name?
Is RIKILT part of Wageningen UR?
Is RIKILT part of Wageningen UR?
Is RIKILT part of Wageningen UR?
Is RIKILT part of Wageningen UR?
Thank you!http://wowter.net
http://www.slideshare.net/wowter