Scimago Journal & Country Rank

ACM Transactions on Computer Systems

Country United States  - SIR icon SIR Ranking of United States
H Index
Subject Area and CategoryComputer Science
Computer Science (miscellaneous)
PublisherAssociation for Computing Machinery (ACM)
Publication typeJournals
Coverage1985-1990, 1992-ongoing
Scope The purpose of ACM Transactions on Computer Systems is to present research and development results on the design, specification, realization, behavior, and use of computer systems. The term "computer systems" is interpreted broadly and includes systems architectures, operating systems, distributed systems, and computer networks. Articles that appear in TOCS will tend either to present new techniques and concepts or to report on experiences and experiments with actual systems. Insights useful to system designers, builders, and users will be emphasized.


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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.

Computer Science (miscellaneous)1999Q1
Computer Science (miscellaneous)2000Q1
Computer Science (miscellaneous)2001Q1
Computer Science (miscellaneous)2002Q1
Computer Science (miscellaneous)2003Q1
Computer Science (miscellaneous)2004Q1
Computer Science (miscellaneous)2005Q1
Computer Science (miscellaneous)2006Q1
Computer Science (miscellaneous)2007Q1
Computer Science (miscellaneous)2008Q1
Computer Science (miscellaneous)2009Q1
Computer Science (miscellaneous)2010Q1
Computer Science (miscellaneous)2011Q1
Computer Science (miscellaneous)2012Q2
Computer Science (miscellaneous)2013Q2
Computer Science (miscellaneous)2014Q1
Computer Science (miscellaneous)2015Q1
Computer Science (miscellaneous)2016Q1
Computer Science (miscellaneous)2017Q1

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.

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)19991.872
Cites / Doc. (4 years)20002.625
Cites / Doc. (4 years)20013.489
Cites / Doc. (4 years)20024.444
Cites / Doc. (4 years)20036.391
Cites / Doc. (4 years)20046.265
Cites / Doc. (4 years)20057.553
Cites / Doc. (4 years)20066.913
Cites / Doc. (4 years)20076.457
Cites / Doc. (4 years)20085.067
Cites / Doc. (4 years)20098.489
Cites / Doc. (4 years)20107.098
Cites / Doc. (4 years)20117.757
Cites / Doc. (4 years)20125.526
Cites / Doc. (4 years)20133.262
Cites / Doc. (4 years)20143.178
Cites / Doc. (4 years)20156.193
Cites / Doc. (4 years)20166.757
Cites / Doc. (4 years)20178.448
Cites / Doc. (3 years)19991.872
Cites / Doc. (3 years)20002.657
Cites / Doc. (3 years)20013.500
Cites / Doc. (3 years)20024.794
Cites / Doc. (3 years)20035.784
Cites / Doc. (3 years)20046.243
Cites / Doc. (3 years)20056.265
Cites / Doc. (3 years)20066.500
Cites / Doc. (3 years)20074.676
Cites / Doc. (3 years)20085.257
Cites / Doc. (3 years)20096.788
Cites / Doc. (3 years)20107.310
Cites / Doc. (3 years)20118.077
Cites / Doc. (3 years)20122.536
Cites / Doc. (3 years)20132.824
Cites / Doc. (3 years)20143.027
Cites / Doc. (3 years)20156.447
Cites / Doc. (3 years)20166.887
Cites / Doc. (3 years)20178.509
Cites / Doc. (2 years)19991.692
Cites / Doc. (2 years)20002.200
Cites / Doc. (2 years)20013.238
Cites / Doc. (2 years)20024.600
Cites / Doc. (2 years)20035.640
Cites / Doc. (2 years)20045.083
Cites / Doc. (2 years)20054.864
Cites / Doc. (2 years)20064.545
Cites / Doc. (2 years)20075.250
Cites / Doc. (2 years)20083.609
Cites / Doc. (2 years)20096.286
Cites / Doc. (2 years)20107.056
Cites / Doc. (2 years)20113.750
Cites / Doc. (2 years)20122.200
Cites / Doc. (2 years)20132.538
Cites / Doc. (2 years)20143.280
Cites / Doc. (2 years)20156.566
Cites / Doc. (2 years)20166.905
Cites / Doc. (2 years)20174.259
Total 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.

Self Cites19992
Self Cites20003
Self Cites20012
Self Cites20021
Self Cites20035
Self Cites20041
Self Cites20055
Self Cites20063
Self Cites20073
Self Cites20082
Self Cites20090
Self Cites20102
Self Cites20111
Self Cites20121
Self Cites20130
Self Cites20140
Self Cites20150
Self Cites20165
Self Cites20170
Total Cites199973
Total Cites200093
Total Cites2001112
Total Cites2002163
Total Cites2003214
Total Cites2004231
Total Cites2005213
Total Cites2006221
Total Cites2007159
Total Cites2008184
Total Cites2009224
Total Cites2010212
Total Cites2011210
Total Cites201271
Total Cites201396
Total Cites2014112
Total Cites20151025
Total Cites20161095
Total Cites20171370
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.

External Cites per document19991.821
External Cites per document20002.571
External Cites per document20013.438
External Cites per document20024.765
External Cites per document20035.649
External Cites per document20046.216
External Cites per document20056.118
External Cites per document20066.412
External Cites per document20074.588
External Cites per document20085.200
External Cites per document20096.788
External Cites per document20107.241
External Cites per document20118.038
External Cites per document20122.500
External Cites per document20132.824
External Cites per document20143.027
External Cites per document20156.447
External Cites per document20166.855
External Cites per document20178.509
Cites per document19991.872
Cites per document20002.657
Cites per document20013.500
Cites per document20024.794
Cites per document20035.784
Cites per document20046.243
Cites per document20056.265
Cites per document20066.500
Cites per document20074.676
Cites per document20085.257
Cites per document20096.788
Cites per document20107.310
Cites per document20118.077
Cites per document20122.536
Cites per document20132.824
Cites per document20143.027
Cites per document20156.447
Cites per document20166.887
Cites per document20178.509
% 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
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.

Non-citable documents19990
Non-citable documents20000
Non-citable documents20010
Non-citable documents20020
Non-citable documents20030
Non-citable documents20041
Non-citable documents20051
Non-citable documents20062
Non-citable documents20071
Non-citable documents20081
Non-citable documents20090
Non-citable documents20100
Non-citable documents20111
Non-citable documents20121
Non-citable documents20132
Non-citable documents20142
Non-citable documents20154
Non-citable documents20163
Non-citable documents20172
Citable documents199939
Citable documents200035
Citable documents200132
Citable documents200234
Citable documents200337
Citable documents200437
Citable documents200534
Citable documents200634
Citable documents200734
Citable documents200835
Citable documents200933
Citable documents201029
Citable documents201126
Citable documents201228
Citable documents201334
Citable documents201437
Citable documents2015159
Citable documents2016159
Citable documents2017161
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.

Uncited documents199915
Uncited documents200010
Uncited documents20019
Uncited documents200214
Uncited documents20036
Uncited documents20049
Uncited documents20058
Uncited documents20067
Uncited documents20073
Uncited documents20085
Uncited documents20095
Uncited documents20106
Uncited documents20117
Uncited documents20128
Uncited documents20139
Uncited documents20149
Uncited documents201513
Uncited documents201617
Uncited documents20179
Cited documents199924
Cited documents200025
Cited documents200123
Cited documents200220
Cited documents200331
Cited documents200429
Cited documents200527
Cited documents200629
Cited documents200732
Cited documents200831
Cited documents200928
Cited documents201023
Cited documents201120
Cited documents201221
Cited documents201327
Cited documents201430
Cited documents2015150
Cited documents2016145
Cited documents2017154
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