Networks

Network problems are pervasive in our modern technological society, as witnessed by our reliance on physical networks that provide power, communication, and transportation. As well, a number of processes can be modeled using logical networks, as in the scheduling of interdependent tasks, the dating of archaeological artifacts, or the compilation of subroutines comprising a large computer program. Networks provide a common framework for posing and studying problems that often have wider applicability than their originating context. The goal of this journal is to provide a central forum for the distribution of timely information about network problems, their design and mathematical analysis, as well as efficient algorithms for carrying out optimization on networks. The nonstandard modeling of diverse processes using networks and network concepts is also of interest. Consequently, the disciplines that are useful in studying networks are varied, including applied mathematics, operations research, computer science, discrete mathematics, and economics. Networks publishes material on the analytic modeling of problems using networks, the mathematical analysis of network problems, the design of computationally eﬃcient network algorithms, and innovative case studies of successful network applications. We do not typically publish works that fall in the realm of pure graph theory (without signiﬁcant algorithmic and modeling contributions) or papers that deal with engineering aspects of network design. Since the audience for this journal is then necessarily broad, articles that impact multiple application areas or that creatively use new or existing methodologies are especially appropriate. We seek to publish original, well-written research papers that make a substantive contribution to the knowledge base. In addition, tutorial and survey articles are welcomed. All manuscripts are carefully refereed.

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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
Computer Networks and Communications	1999	Q1
Computer Networks and Communications	2000	Q1
Computer Networks and Communications	2001	Q1
Computer Networks and Communications	2002	Q2
Computer Networks and Communications	2003	Q2
Computer Networks and Communications	2004	Q2
Computer Networks and Communications	2005	Q1
Computer Networks and Communications	2006	Q1
Computer Networks and Communications	2007	Q1
Computer Networks and Communications	2008	Q1
Computer Networks and Communications	2009	Q1
Computer Networks and Communications	2010	Q1
Computer Networks and Communications	2011	Q1
Computer Networks and Communications	2012	Q1
Computer Networks and Communications	2013	Q1
Computer Networks and Communications	2014	Q1
Computer Networks and Communications	2015	Q1
Computer Networks and Communications	2016	Q1
Computer Networks and Communications	2017	Q1
Computer Networks and Communications	2018	Q1
Computer Networks and Communications	2019	Q1
Computer Networks and Communications	2020	Q1
Computer Networks and Communications	2021	Q1
Computer Networks and Communications	2022	Q1
Computer Networks and Communications	2023	Q2
Hardware and Architecture	1999	Q1
Hardware and Architecture	2000	Q1
Hardware and Architecture	2001	Q1
Hardware and Architecture	2002	Q2
Hardware and Architecture	2003	Q1
Hardware and Architecture	2004	Q1
Hardware and Architecture	2005	Q1
Hardware and Architecture	2006	Q1
Hardware and Architecture	2007	Q1
Hardware and Architecture	2008	Q1
Hardware and Architecture	2009	Q1
Hardware and Architecture	2010	Q1
Hardware and Architecture	2011	Q1
Hardware and Architecture	2012	Q1
Hardware and Architecture	2013	Q1
Hardware and Architecture	2014	Q1
Hardware and Architecture	2015	Q1
Hardware and Architecture	2016	Q1
Hardware and Architecture	2017	Q1
Hardware and Architecture	2018	Q1
Hardware and Architecture	2019	Q1
Hardware and Architecture	2020	Q1
Hardware and Architecture	2021	Q1
Hardware and Architecture	2022	Q2
Hardware and Architecture	2023	Q2
Information Systems	1999	Q2
Information Systems	2000	Q2
Information Systems	2001	Q2
Information Systems	2002	Q2
Information Systems	2003	Q2
Information Systems	2004	Q2
Information Systems	2005	Q1
Information Systems	2006	Q2
Information Systems	2007	Q1
Information Systems	2008	Q2
Information Systems	2009	Q1
Information Systems	2010	Q1
Information Systems	2011	Q1
Information Systems	2012	Q2
Information Systems	2013	Q1
Information Systems	2014	Q1
Information Systems	2015	Q1
Information Systems	2016	Q1
Information Systems	2017	Q1
Information Systems	2018	Q2
Information Systems	2019	Q1
Information Systems	2020	Q1
Information Systems	2021	Q1
Information Systems	2022	Q1
Information Systems	2023	Q1
Software	1999	Q2
Software	2000	Q2
Software	2001	Q2
Software	2002	Q2
Software	2003	Q2
Software	2004	Q2
Software	2005	Q1
Software	2006	Q2
Software	2007	Q1
Software	2008	Q1
Software	2009	Q1
Software	2010	Q1
Software	2011	Q1
Software	2012	Q1
Software	2013	Q1
Software	2014	Q1
Software	2015	Q1
Software	2016	Q1
Software	2017	Q1
Software	2018	Q1
Software	2019	Q1
Software	2020	Q1
Software	2021	Q1
Software	2022	Q2
Software	2023	Q2

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	0.413
2000	0.529
2001	0.754
2002	0.535
2003	0.623
2004	0.586
2005	0.874
2006	0.710
2007	0.993
2008	0.843
2009	1.082
2010	1.348
2011	0.924
2012	0.757
2013	1.083
2014	0.941
2015	0.896
2016	1.119
2017	0.940
2018	0.660
2019	0.835
2020	0.977
2021	1.283
2022	0.908
2023	0.908

Total Documents

Evolution of the number of published documents. All types of documents are considered, including citable and non citable documents.

Year	Documents
1999	60
2000	56
2001	45
2002	48
2003	45
2004	55
2005	47
2006	47
2007	61
2008	55
2009	65
2010	60
2011	68
2012	57
2013	52
2014	51
2015	59
2016	50
2017	58
2018	58
2019	54
2020	56
2021	64
2022	60
2023	53

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	0.471
Cites / Doc. (4 years)	2000	0.615
Cites / Doc. (4 years)	2001	0.658
Cites / Doc. (4 years)	2002	0.665
Cites / Doc. (4 years)	2003	0.703
Cites / Doc. (4 years)	2004	0.768
Cites / Doc. (4 years)	2005	1.036
Cites / Doc. (4 years)	2006	1.108
Cites / Doc. (4 years)	2007	1.149
Cites / Doc. (4 years)	2008	1.252
Cites / Doc. (4 years)	2009	1.329
Cites / Doc. (4 years)	2010	1.259
Cites / Doc. (4 years)	2011	1.506
Cites / Doc. (4 years)	2012	1.137
Cites / Doc. (4 years)	2013	1.528
Cites / Doc. (4 years)	2014	1.359
Cites / Doc. (4 years)	2015	1.412
Cites / Doc. (4 years)	2016	1.484
Cites / Doc. (4 years)	2017	1.538
Cites / Doc. (4 years)	2018	1.592
Cites / Doc. (4 years)	2019	1.933
Cites / Doc. (4 years)	2020	2.327
Cites / Doc. (4 years)	2021	3.080
Cites / Doc. (4 years)	2022	3.086
Cites / Doc. (4 years)	2023	2.197
Cites / Doc. (3 years)	1999	0.471
Cites / Doc. (3 years)	2000	0.613
Cites / Doc. (3 years)	2001	0.629
Cites / Doc. (3 years)	2002	0.565
Cites / Doc. (3 years)	2003	0.651
Cites / Doc. (3 years)	2004	0.674
Cites / Doc. (3 years)	2005	1.088
Cites / Doc. (3 years)	2006	1.102
Cites / Doc. (3 years)	2007	1.060
Cites / Doc. (3 years)	2008	1.013
Cites / Doc. (3 years)	2009	1.301
Cites / Doc. (3 years)	2010	1.271
Cites / Doc. (3 years)	2011	1.356
Cites / Doc. (3 years)	2012	0.948
Cites / Doc. (3 years)	2013	1.389
Cites / Doc. (3 years)	2014	1.198
Cites / Doc. (3 years)	2015	1.319
Cites / Doc. (3 years)	2016	1.309
Cites / Doc. (3 years)	2017	1.556
Cites / Doc. (3 years)	2018	1.353
Cites / Doc. (3 years)	2019	2.000
Cites / Doc. (3 years)	2020	2.406
Cites / Doc. (3 years)	2021	3.292
Cites / Doc. (3 years)	2022	2.270
Cites / Doc. (3 years)	2023	2.278
Cites / Doc. (2 years)	1999	0.379
Cites / Doc. (2 years)	2000	0.586
Cites / Doc. (2 years)	2001	0.526
Cites / Doc. (2 years)	2002	0.584
Cites / Doc. (2 years)	2003	0.634
Cites / Doc. (2 years)	2004	0.645
Cites / Doc. (2 years)	2005	1.090
Cites / Doc. (2 years)	2006	0.833
Cites / Doc. (2 years)	2007	0.766
Cites / Doc. (2 years)	2008	0.806
Cites / Doc. (2 years)	2009	1.293
Cites / Doc. (2 years)	2010	1.092
Cites / Doc. (2 years)	2011	1.264
Cites / Doc. (2 years)	2012	0.883
Cites / Doc. (2 years)	2013	1.192
Cites / Doc. (2 years)	2014	1.128
Cites / Doc. (2 years)	2015	1.184
Cites / Doc. (2 years)	2016	1.209
Cites / Doc. (2 years)	2017	1.239
Cites / Doc. (2 years)	2018	1.333
Cites / Doc. (2 years)	2019	1.948
Cites / Doc. (2 years)	2020	2.589
Cites / Doc. (2 years)	2021	1.845
Cites / Doc. (2 years)	2022	2.300
Cites / Doc. (2 years)	2023	2.452

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	8
Self Cites	2000	5
Self Cites	2001	15
Self Cites	2002	7
Self Cites	2003	17
Self Cites	2004	11
Self Cites	2005	11
Self Cites	2006	8
Self Cites	2007	21
Self Cites	2008	9
Self Cites	2009	13
Self Cites	2010	16
Self Cites	2011	6
Self Cites	2012	10
Self Cites	2013	20
Self Cites	2014	7
Self Cites	2015	15
Self Cites	2016	13
Self Cites	2017	20
Self Cites	2018	15
Self Cites	2019	14
Self Cites	2020	18
Self Cites	2021	65
Self Cites	2022	21
Self Cites	2023	26
Total Cites	1999	72
Total Cites	2000	100
Total Cites	2001	105
Total Cites	2002	91
Total Cites	2003	97
Total Cites	2004	93
Total Cites	2005	161
Total Cites	2006	162
Total Cites	2007	158
Total Cites	2008	157
Total Cites	2009	212
Total Cites	2010	230
Total Cites	2011	244
Total Cites	2012	183
Total Cites	2013	257
Total Cites	2014	212
Total Cites	2015	211
Total Cites	2016	212
Total Cites	2017	249
Total Cites	2018	226
Total Cites	2019	332
Total Cites	2020	409
Total Cites	2021	553
Total Cites	2022	395
Total Cites	2023	410

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	0.418
External Cites per document	2000	0.583
External Cites per document	2001	0.539
External Cites per document	2002	0.522
External Cites per document	2003	0.537
External Cites per document	2004	0.594
External Cites per document	2005	1.014
External Cites per document	2006	1.048
External Cites per document	2007	0.919
External Cites per document	2008	0.955
External Cites per document	2009	1.221
External Cites per document	2010	1.182
External Cites per document	2011	1.322
External Cites per document	2012	0.896
External Cites per document	2013	1.281
External Cites per document	2014	1.158
External Cites per document	2015	1.225
External Cites per document	2016	1.228
External Cites per document	2017	1.431
External Cites per document	2018	1.263
External Cites per document	2019	1.916
External Cites per document	2020	2.300
External Cites per document	2021	2.905
External Cites per document	2022	2.149
External Cites per document	2023	2.133
Cites per document	1999	0.471
Cites per document	2000	0.613
Cites per document	2001	0.629
Cites per document	2002	0.565
Cites per document	2003	0.651
Cites per document	2004	0.674
Cites per document	2005	1.088
Cites per document	2006	1.102
Cites per document	2007	1.060
Cites per document	2008	1.013
Cites per document	2009	1.301
Cites per document	2010	1.271
Cites per document	2011	1.356
Cites per document	2012	0.948
Cites per document	2013	1.389
Cites per document	2014	1.198
Cites per document	2015	1.319
Cites per document	2016	1.309
Cites per document	2017	1.556
Cites per document	2018	1.353
Cites per document	2019	2.000
Cites per document	2020	2.406
Cites per document	2021	3.292
Cites per document	2022	2.270
Cites per document	2023	2.278

% 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	23.33
2000	25.00
2001	17.78
2002	22.92
2003	42.22
2004	27.27
2005	34.04
2006	31.91
2007	26.23
2008	38.18
2009	32.31
2010	25.00
2011	33.82
2012	35.09
2013	34.62
2014	31.37
2015	45.76
2016	36.00
2017	32.76
2018	31.03
2019	27.78
2020	41.07
2021	29.69
2022	30.00
2023	39.62

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	0
Non-citable documents	2004	1
Non-citable documents	2005	1
Non-citable documents	2006	1
Non-citable documents	2007	1
Non-citable documents	2008	4
Non-citable documents	2009	7
Non-citable documents	2010	8
Non-citable documents	2011	8
Non-citable documents	2012	9
Non-citable documents	2013	9
Non-citable documents	2014	7
Non-citable documents	2015	6
Non-citable documents	2016	9
Non-citable documents	2017	13
Non-citable documents	2018	16
Non-citable documents	2019	18
Non-citable documents	2020	17
Non-citable documents	2021	13
Non-citable documents	2022	13
Non-citable documents	2023	12
Citable documents	1999	153
Citable documents	2000	163
Citable documents	2001	167
Citable documents	2002	161
Citable documents	2003	149
Citable documents	2004	137
Citable documents	2005	147
Citable documents	2006	146
Citable documents	2007	148
Citable documents	2008	151
Citable documents	2009	156
Citable documents	2010	173
Citable documents	2011	172
Citable documents	2012	184
Citable documents	2013	176
Citable documents	2014	170
Citable documents	2015	154
Citable documents	2016	153
Citable documents	2017	147
Citable documents	2018	151
Citable documents	2019	148
Citable documents	2020	153
Citable documents	2021	155
Citable documents	2022	161
Citable documents	2023	168

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	104
Uncited documents	2000	110
Uncited documents	2001	104
Uncited documents	2002	107
Uncited documents	2003	90
Uncited documents	2004	87
Uncited documents	2005	85
Uncited documents	2006	79
Uncited documents	2007	78
Uncited documents	2008	87
Uncited documents	2009	71
Uncited documents	2010	80
Uncited documents	2011	88
Uncited documents	2012	105
Uncited documents	2013	90
Uncited documents	2014	89
Uncited documents	2015	73
Uncited documents	2016	78
Uncited documents	2017	69
Uncited documents	2018	80
Uncited documents	2019	75
Uncited documents	2020	75
Uncited documents	2021	54
Uncited documents	2022	58
Uncited documents	2023	72
Cited documents	1999	49
Cited documents	2000	53
Cited documents	2001	63
Cited documents	2002	54
Cited documents	2003	59
Cited documents	2004	51
Cited documents	2005	63
Cited documents	2006	68
Cited documents	2007	71
Cited documents	2008	68
Cited documents	2009	92
Cited documents	2010	101
Cited documents	2011	92
Cited documents	2012	88
Cited documents	2013	95
Cited documents	2014	88
Cited documents	2015	87
Cited documents	2016	84
Cited documents	2017	91
Cited documents	2018	87
Cited documents	2019	91
Cited documents	2020	95
Cited documents	2021	114
Cited documents	2022	116
Cited documents	2023	108