Scimago Journal & Country Rank

International Journal of Systems Science

CountryUnited Kingdom
59
H Index
Subject Area and CategoryComputer Science
Computer Science Applications

Engineering
Control and Systems Engineering

Mathematics
Theoretical Computer Science
PublisherTaylor & Francis
Publication typeJournals
ISSN00207721, 14645319
Coverage1970-2018
Scope Modern systems are becoming more and more complex and sophisticated in their demand for performance, reliability and increasing autonomy. Historically, highly analytic and numeric based methods have sufficed, frequently simplifying the problem to allow analytical tractability. Many manufactured and natural systems (biological, ecological and socio-economic) cannot be adequately represented quantitively alone; qualitations and heuristics, linguistics etc., knowledge is frequently required within a common information-processing framework. A wide range of new theories, methodologies and techniques are required to "enable" such systems, and thus engineering and integration to deal with these demands. (source)
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.

CategoryYearQuartile
Computer Science Applications1999Q2
Computer Science Applications2000Q2
Computer Science Applications2001Q2
Computer Science Applications2002Q3
Computer Science Applications2003Q3
Computer Science Applications2004Q3
Computer Science Applications2005Q3
Computer Science Applications2006Q3
Computer Science Applications2007Q3
Computer Science Applications2008Q2
Computer Science Applications2009Q2
Computer Science Applications2010Q2
Computer Science Applications2011Q2
Computer Science Applications2012Q1
Computer Science Applications2013Q2
Computer Science Applications2014Q1
Computer Science Applications2015Q1
Computer Science Applications2016Q2
Computer Science Applications2017Q2
Control and Systems Engineering1999Q1
Control and Systems Engineering2000Q2
Control and Systems Engineering2001Q2
Control and Systems Engineering2002Q2
Control and Systems Engineering2003Q2
Control and Systems Engineering2004Q2
Control and Systems Engineering2005Q2
Control and Systems Engineering2006Q2
Control and Systems Engineering2007Q2
Control and Systems Engineering2008Q2
Control and Systems Engineering2009Q2
Control and Systems Engineering2010Q2
Control and Systems Engineering2011Q1
Control and Systems Engineering2012Q1
Control and Systems Engineering2013Q2
Control and Systems Engineering2014Q1
Control and Systems Engineering2015Q1
Control and Systems Engineering2016Q1
Control and Systems Engineering2017Q2
Theoretical Computer Science1999Q2
Theoretical Computer Science2000Q2
Theoretical Computer Science2001Q2
Theoretical Computer Science2002Q3
Theoretical Computer Science2003Q3
Theoretical Computer Science2004Q3
Theoretical Computer Science2005Q3
Theoretical Computer Science2006Q3
Theoretical Computer Science2007Q3
Theoretical Computer Science2008Q3
Theoretical Computer Science2009Q2
Theoretical Computer Science2010Q2
Theoretical Computer Science2011Q2
Theoretical Computer Science2012Q2
Theoretical Computer Science2013Q2
Theoretical Computer Science2014Q1
Theoretical Computer Science2015Q1
Theoretical Computer Science2016Q2
Theoretical Computer Science2017Q1
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.

YearSJR
19990.586
20000.443
20010.478
20020.407
20030.373
20040.372
20050.275
20060.319
20070.369
20080.497
20090.584
20100.669
20110.735
20120.840
20130.758
20140.974
20151.042
20160.778
20170.763
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 documentYearValue
Cites / Doc. (4 years)19990.422
Cites / Doc. (4 years)20000.407
Cites / Doc. (4 years)20010.538
Cites / Doc. (4 years)20020.465
Cites / Doc. (4 years)20030.481
Cites / Doc. (4 years)20040.740
Cites / Doc. (4 years)20050.710
Cites / Doc. (4 years)20060.759
Cites / Doc. (4 years)20070.769
Cites / Doc. (4 years)20081.068
Cites / Doc. (4 years)20091.397
Cites / Doc. (4 years)20101.621
Cites / Doc. (4 years)20111.983
Cites / Doc. (4 years)20122.041
Cites / Doc. (4 years)20132.098
Cites / Doc. (4 years)20142.315
Cites / Doc. (4 years)20152.319
Cites / Doc. (4 years)20162.319
Cites / Doc. (4 years)20172.454
Cites / Doc. (3 years)19990.422
Cites / Doc. (3 years)20000.396
Cites / Doc. (3 years)20010.509
Cites / Doc. (3 years)20020.477
Cites / Doc. (3 years)20030.494
Cites / Doc. (3 years)20040.732
Cites / Doc. (3 years)20050.601
Cites / Doc. (3 years)20060.656
Cites / Doc. (3 years)20070.752
Cites / Doc. (3 years)20081.112
Cites / Doc. (3 years)20091.392
Cites / Doc. (3 years)20101.681
Cites / Doc. (3 years)20111.825
Cites / Doc. (3 years)20121.904
Cites / Doc. (3 years)20132.086
Cites / Doc. (3 years)20142.383
Cites / Doc. (3 years)20152.299
Cites / Doc. (3 years)20162.441
Cites / Doc. (3 years)20172.536
Cites / Doc. (2 years)19990.388
Cites / Doc. (2 years)20000.321
Cites / Doc. (2 years)20010.434
Cites / Doc. (2 years)20020.479
Cites / Doc. (2 years)20030.426
Cites / Doc. (2 years)20040.581
Cites / Doc. (2 years)20050.437
Cites / Doc. (2 years)20060.565
Cites / Doc. (2 years)20070.786
Cites / Doc. (2 years)20080.951
Cites / Doc. (2 years)20091.344
Cites / Doc. (2 years)20101.474
Cites / Doc. (2 years)20111.428
Cites / Doc. (2 years)20121.792
Cites / Doc. (2 years)20131.989
Cites / Doc. (2 years)20142.410
Cites / Doc. (2 years)20152.220
Cites / Doc. (2 years)20162.337
Cites / Doc. (2 years)20172.522
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.

CitesYearValue
Self Cites199925
Self Cites200024
Self Cites200115
Self Cites200220
Self Cites200310
Self Cites20049
Self Cites20057
Self Cites200611
Self Cites200716
Self Cites200826
Self Cites200933
Self Cites201096
Self Cites2011123
Self Cites2012175
Self Cites2013304
Self Cites2014261
Self Cites2015268
Self Cites2016252
Self Cites2017311
Total Cites1999180
Total Cites2000152
Total Cites2001206
Total Cites2002194
Total Cites2003202
Total Cites2004246
Total Cites2005169
Total Cites2006164
Total Cites2007203
Total Cites2008308
Total Cites2009398
Total Cites2010501
Total Cites2011615
Total Cites2012790
Total Cites20131039
Total Cites20141356
Total Cites20151368
Total Cites20161562
Total Cites20171963
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.

CitesYearValue
External Cites per document19990.363
External Cites per document20000.333
External Cites per document20010.472
External Cites per document20020.428
External Cites per document20030.469
External Cites per document20040.705
External Cites per document20050.577
External Cites per document20060.612
External Cites per document20070.693
External Cites per document20081.018
External Cites per document20091.276
External Cites per document20101.359
External Cites per document20111.460
External Cites per document20121.482
External Cites per document20131.476
External Cites per document20141.924
External Cites per document20151.849
External Cites per document20162.047
External Cites per document20172.134
Cites per document19990.422
Cites per document20000.396
Cites per document20010.509
Cites per document20020.477
Cites per document20030.494
Cites per document20040.732
Cites per document20050.601
Cites per document20060.656
Cites per document20070.752
Cites per document20081.112
Cites per document20091.392
Cites per document20101.681
Cites per document20111.825
Cites per document20121.904
Cites per document20132.086
Cites per document20142.383
Cites per document20152.299
Cites per document20162.441
Cites per document20172.536
% 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.

YearInternational Collaboration
199910.57
200012.18
200115.04
20028.00
200333.33
200421.52
200534.74
200631.73
200722.99
200828.16
200925.86
201029.69
201127.17
201220.92
201319.90
201422.86
201521.25
201624.70
201724.78
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.

DocumentsYearValue
Non-citable documents19997
Non-citable documents20005
Non-citable documents20017
Non-citable documents20025
Non-citable documents20035
Non-citable documents20043
Non-citable documents20054
Non-citable documents20065
Non-citable documents20078
Non-citable documents20089
Non-citable documents20098
Non-citable documents20108
Non-citable documents201110
Non-citable documents201213
Non-citable documents201310
Non-citable documents20147
Non-citable documents20157
Non-citable documents20166
Non-citable documents20178
Citable documents1999427
Citable documents2000384
Citable documents2001405
Citable documents2002407
Citable documents2003409
Citable documents2004336
Citable documents2005281
Citable documents2006250
Citable documents2007270
Citable documents2008277
Citable documents2009286
Citable documents2010298
Citable documents2011337
Citable documents2012415
Citable documents2013498
Citable documents2014569
Citable documents2015595
Citable documents2016640
Citable documents2017774
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.

DocumentsYearValue
Uncited documents1999323
Uncited documents2000286
Uncited documents2001286
Uncited documents2002295
Uncited documents2003293
Uncited documents2004228
Uncited documents2005188
Uncited documents2006165
Uncited documents2007183
Uncited documents2008154
Uncited documents2009141
Uncited documents2010135
Uncited documents2011141
Uncited documents2012154
Uncited documents2013169
Uncited documents2014150
Uncited documents2015173
Uncited documents2016180
Uncited documents2017194
Cited documents1999111
Cited documents2000103
Cited documents2001126
Cited documents2002117
Cited documents2003121
Cited documents2004111
Cited documents200597
Cited documents200690
Cited documents200795
Cited documents2008132
Cited documents2009153
Cited documents2010171
Cited documents2011206
Cited documents2012274
Cited documents2013339
Cited documents2014426
Cited documents2015429
Cited documents2016466
Cited documents2017588
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