Discrete Mathematics

Quartiles

The set of journals have been ranked according to their SJR and divided into four equal groups, four quartiles. Q1 (green) comprises the quarter of the journals with the highest values, Q2 (yellow) the second highest values, Q3 (orange) the third highest values and Q4 (red) the lowest values.

Category	Year	Quartile
Discrete Mathematics and Combinatorics	1997	Q2
Discrete Mathematics and Combinatorics	1998	Q2
Discrete Mathematics and Combinatorics	1999	Q2
Discrete Mathematics and Combinatorics	2000	Q3
Discrete Mathematics and Combinatorics	2001	Q2
Discrete Mathematics and Combinatorics	2002	Q2
Discrete Mathematics and Combinatorics	2003	Q2
Discrete Mathematics and Combinatorics	2004	Q2
Discrete Mathematics and Combinatorics	2005	Q2
Discrete Mathematics and Combinatorics	2006	Q1
Discrete Mathematics and Combinatorics	2007	Q1
Discrete Mathematics and Combinatorics	2008	Q1
Discrete Mathematics and Combinatorics	2009	Q2
Discrete Mathematics and Combinatorics	2010	Q1
Discrete Mathematics and Combinatorics	2011	Q1
Discrete Mathematics and Combinatorics	2012	Q1
Discrete Mathematics and Combinatorics	2013	Q1
Discrete Mathematics and Combinatorics	2014	Q1
Discrete Mathematics and Combinatorics	2015	Q2
Discrete Mathematics and Combinatorics	2016	Q1
Theoretical Computer Science	1997	Q1
Theoretical Computer Science	1998	Q1
Theoretical Computer Science	1999	Q1
Theoretical Computer Science	2000	Q2
Theoretical Computer Science	2001	Q2
Theoretical Computer Science	2002	Q2
Theoretical Computer Science	2003	Q2
Theoretical Computer Science	2004	Q2
Theoretical Computer Science	2005	Q2
Theoretical Computer Science	2006	Q1
Theoretical Computer Science	2007	Q2
Theoretical Computer Science	2008	Q2
Theoretical Computer Science	2009	Q2
Theoretical Computer Science	2010	Q2
Theoretical Computer Science	2011	Q2
Theoretical Computer Science	2012	Q1
Theoretical Computer Science	2013	Q1
Theoretical Computer Science	2014	Q1
Theoretical Computer Science	2015	Q1
Theoretical Computer Science	2016	Q1

SJR

The SJR is a size-independent prestige indicator that ranks journals by their 'average prestige per article'. It is based on the idea that 'all citations are not created equal'. SJR is a measure of scientific influence of journals that accounts for both the number of citations received by a journal and the importance or prestige of the journals where such citations come from It measures the scientific influence of the average article in a journal, it expresses how central to the global scientific discussion an average article of the journal is.

Year	SJR
1999	0.881
2000	0.635
2001	0.928
2002	0.834
2003	0.789
2004	0.817
2005	0.854
2006	0.912
2007	1.035
2008	0.942
2009	0.925
2010	0.875
2011	0.875
2012	0.965
2013	1.005
2014	1.030
2015	0.933
2016	0.925

Citations per document

This indicator counts the number of citations received by documents from a journal and divides them by the total number of documents published in that journal. The chart shows the evolution of the average number of times documents published in a journal in the past two, three and four years have been cited in the current year. The two years line is equivalent to journal impact factor ™ (Thomson Reuters) metric.

Cites per document	Year	Value
Cites / Doc. (4 years)	1999	0.362
Cites / Doc. (4 years)	2000	0.372
Cites / Doc. (4 years)	2001	0.376
Cites / Doc. (4 years)	2002	0.478
Cites / Doc. (4 years)	2003	0.374
Cites / Doc. (4 years)	2004	0.426
Cites / Doc. (4 years)	2005	0.446
Cites / Doc. (4 years)	2006	0.486
Cites / Doc. (4 years)	2007	0.540
Cites / Doc. (4 years)	2008	0.683
Cites / Doc. (4 years)	2009	0.707
Cites / Doc. (4 years)	2010	0.671
Cites / Doc. (4 years)	2011	0.720
Cites / Doc. (4 years)	2012	0.773
Cites / Doc. (4 years)	2013	0.836
Cites / Doc. (4 years)	2014	0.749
Cites / Doc. (4 years)	2015	0.688
Cites / Doc. (4 years)	2016	0.719
Cites / Doc. (3 years)	1999	0.362
Cites / Doc. (3 years)	2000	0.353
Cites / Doc. (3 years)	2001	0.386
Cites / Doc. (3 years)	2002	0.461
Cites / Doc. (3 years)	2003	0.338
Cites / Doc. (3 years)	2004	0.406
Cites / Doc. (3 years)	2005	0.447
Cites / Doc. (3 years)	2006	0.457
Cites / Doc. (3 years)	2007	0.532
Cites / Doc. (3 years)	2008	0.582
Cites / Doc. (3 years)	2009	0.678
Cites / Doc. (3 years)	2010	0.657
Cites / Doc. (3 years)	2011	0.709
Cites / Doc. (3 years)	2012	0.768
Cites / Doc. (3 years)	2013	0.792
Cites / Doc. (3 years)	2014	0.744
Cites / Doc. (3 years)	2015	0.657
Cites / Doc. (3 years)	2016	0.727
Cites / Doc. (2 years)	1999	0.352
Cites / Doc. (2 years)	2000	0.338
Cites / Doc. (2 years)	2001	0.362
Cites / Doc. (2 years)	2002	0.427
Cites / Doc. (2 years)	2003	0.288
Cites / Doc. (2 years)	2004	0.395
Cites / Doc. (2 years)	2005	0.389
Cites / Doc. (2 years)	2006	0.419
Cites / Doc. (2 years)	2007	0.403
Cites / Doc. (2 years)	2008	0.522
Cites / Doc. (2 years)	2009	0.612
Cites / Doc. (2 years)	2010	0.629
Cites / Doc. (2 years)	2011	0.679
Cites / Doc. (2 years)	2012	0.701
Cites / Doc. (2 years)	2013	0.776
Cites / Doc. (2 years)	2014	0.713
Cites / Doc. (2 years)	2015	0.615
Cites / Doc. (2 years)	2016	0.667

Total Cites

Self-Cites

Evolution of the total number of citations and journal's self-citations received by a journal's published documents during the three previous years.
Journal Self-citation is defined as the number of citation from a journal citing article to articles published by the same journal.

Cites	Year	Value
Self Cites	1999	140
Self Cites	2000	121
Self Cites	2001	105
Self Cites	2002	149
Self Cites	2003	75
Self Cites	2004	168
Self Cites	2005	119
Self Cites	2006	91
Self Cites	2007	87
Self Cites	2008	145
Self Cites	2009	209
Self Cites	2010	225
Self Cites	2011	158
Self Cites	2012	180
Self Cites	2013	131
Self Cites	2014	100
Self Cites	2015	104
Self Cites	2016	151
Total Cites	1999	437
Total Cites	2000	410
Total Cites	2001	436
Total Cites	2002	504
Total Cites	2003	427
Total Cites	2004	502
Total Cites	2005	587
Total Cites	2006	508
Total Cites	2007	594
Total Cites	2008	585
Total Cites	2009	922
Total Cites	2010	1156
Total Cites	2011	1332
Total Cites	2012	1137
Total Cites	2013	923
Total Cites	2014	798
Total Cites	2015	683
Total Cites	2016	641

External Cites per Doc

Cites per Doc

Evolution of the number of total citation per document and external citation per document (i.e. journal self-citations removed) received by a journal's published documents during the three previous years. External citations are calculated by subtracting the number of self-citations from the total number of citations received by the journal’s documents.

Cites	Year	Value
External Cites per document	1999	0.246
External Cites per document	2000	0.249
External Cites per document	2001	0.293
External Cites per document	2002	0.324
External Cites per document	2003	0.279
External Cites per document	2004	0.270
External Cites per document	2005	0.356
External Cites per document	2006	0.375
External Cites per document	2007	0.454
External Cites per document	2008	0.437
External Cites per document	2009	0.525
External Cites per document	2010	0.529
External Cites per document	2011	0.624
External Cites per document	2012	0.647
External Cites per document	2013	0.679
External Cites per document	2014	0.651
External Cites per document	2015	0.557
External Cites per document	2016	0.556
Cites per document	1999	0.362
Cites per document	2000	0.353
Cites per document	2001	0.386
Cites per document	2002	0.461
Cites per document	2003	0.338
Cites per document	2004	0.406
Cites per document	2005	0.447
Cites per document	2006	0.457
Cites per document	2007	0.532
Cites per document	2008	0.582
Cites per document	2009	0.678
Cites per document	2010	0.657
Cites per document	2011	0.709
Cites per document	2012	0.768
Cites per document	2013	0.792
Cites per document	2014	0.744
Cites per document	2015	0.657
Cites per document	2016	0.727

% International Collaboration

International Collaboration accounts for the articles that have been produced by researchers from several countries. The chart shows the ratio of a journal's documents signed by researchers from more than one country; that is including more than one country address.

Year	International Collaboration
1999	25.73
2000	25.90
2001	27.40
2002	25.36
2003	30.39
2004	31.11
2005	27.27
2006	25.79
2007	26.22
2008	25.96
2009	25.50
2010	24.67
2011	25.17
2012	31.65
2013	26.78
2014	33.46
2015	25.43
2016	32.66

Citable documents

Non-citable documents

Not every article in a journal is considered primary research and therefore "citable", this chart shows the ratio of a journal's articles including substantial research (research articles, conference papers and reviews) in three year windows vs. those documents other than research articles, reviews and conference papers.

Documents	Year	Value
Non-citable documents	1999	0
Non-citable documents	2000	0
Non-citable documents	2001	0
Non-citable documents	2002	0
Non-citable documents	2003	2
Non-citable documents	2004	27
Non-citable documents	2005	31
Non-citable documents	2006	36
Non-citable documents	2007	18
Non-citable documents	2008	23
Non-citable documents	2009	23
Non-citable documents	2010	30
Non-citable documents	2011	32
Non-citable documents	2012	29
Non-citable documents	2013	22
Non-citable documents	2014	17
Non-citable documents	2015	14
Non-citable documents	2016	26
Citable documents	1999	1208
Citable documents	2000	1162
Citable documents	2001	1129
Citable documents	2002	1094
Citable documents	2003	1263
Citable documents	2004	1237
Citable documents	2005	1313
Citable documents	2006	1112
Citable documents	2007	1117
Citable documents	2008	1006
Citable documents	2009	1359
Citable documents	2010	1760
Citable documents	2011	1880
Citable documents	2012	1480
Citable documents	2013	1166
Citable documents	2014	1072
Citable documents	2015	1039
Citable documents	2016	882

Cited documents

Uncited documents

Ratio of a journal's items, grouped in three years windows, that have been cited at least once vs. those not cited during the following year.

Documents	Year	Value
Uncited documents	1999	909
Uncited documents	2000	882
Uncited documents	2001	843
Uncited documents	2002	781
Uncited documents	2003	992
Uncited documents	2004	938
Uncited documents	2005	946
Uncited documents	2006	828
Uncited documents	2007	762
Uncited documents	2008	690
Uncited documents	2009	846
Uncited documents	2010	1118
Uncited documents	2011	1172
Uncited documents	2012	896
Uncited documents	2013	713
Uncited documents	2014	679
Uncited documents	2015	692
Uncited documents	2016	579
Cited documents	1999	299
Cited documents	2000	280
Cited documents	2001	286
Cited documents	2002	313
Cited documents	2003	273
Cited documents	2004	326
Cited documents	2005	398
Cited documents	2006	320
Cited documents	2007	373
Cited documents	2008	339
Cited documents	2009	536
Cited documents	2010	672
Cited documents	2011	740
Cited documents	2012	613
Cited documents	2013	475
Cited documents	2014	410
Cited documents	2015	361
Cited documents	2016	329

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Country	Netherlands	59 H Index
Subject Area and Category	Mathematics Discrete Mathematics and Combinatorics Theoretical Computer Science
Publisher	Elsevier BV
Publication type	Journals
ISSN	0012365X
Coverage	1971-ongoing
Scope	Discrete Mathematics provides a common forum for significant research in many areas of discrete mathematics and combinatorics. Among the fields covered by Discrete Mathematics are graph and hypergraph theory, network theory, enumeration, coding theory, block designs, the theory of partially ordered sets, extremal set theory, matroid theory, algebraic combinatorics, polyhedra, combinatorial and discrete geometry, matrices, and discrete probability theory. Items in the journal may be research articles (Contributions or Notes, depending on length), or survey/expository articles (Perspectives). (source)